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Cover and Content of Chemical Journal of Chinese Universities Vol.44 No.6(2023) Chem. J. Chinese Universities    2023, 44 (6): 1-6.   Abstract （159）      PDF（pc） （53746KB）（1863）       Knowledge map    Save Related Articles | Metrics

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Cover and Content of Chemical Journal of Chinese Universities Vol.42 No.6(2021) Chem. J. Chinese Universities    2021, 42 (6): 1-12.   Abstract （206）      PDF（pc） （15590KB）（1674）       Knowledge map    Save Related Articles | Metrics

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Research Progress of Quasi-two-dimensional Perovskite Solar Cells YUE Shengli, WU Guangbao, LI Xing, LI Kang, HUANG Gaosheng, TANG Yi, ZHOU Huiqiong Chem. J. Chinese Universities    2021, 42 (6): 1648-1671.   DOI: 10.7503/cjcu20200863 Abstract （1712）   HTML （94）    PDF（pc） （22856KB）（1243）       Knowledge map    Save Quasi-two-dimensional（2D） perovskite（organic-inorganic hybrid） has attracted enormous attention in solar cells due to its excellent stability， crystallinity and photoelectric properties. In contrast to the 3D perovskite， the unique layered crystal structure endows some extraordinary properties of quasi-2D perovskites， which is due to the intercalation of organic spacer cations（OSC） into the 3D framework. （1） The multilayer quantum wells create the anisotropic photoelectric properties. （2） The spacer cations change the environment of the clusters in precursor solution to achieve high-quality perovskite films. （3） The hydrophobic spacer layers with inhibition of ion migration realize excellent stability of quasi-2D perovskites films. However， the photoelectric transformation efficiency（PCE） of quasi-2D perovskite solar cells（PSCs） is still far less than that of 3D counterparts due to quantum confinement effect， dielectric confinement effect， non-preferred crystal orientation and random phase distributions of quasi-2D perovskites films. In order to solve these problems and achieve the balance between the PCE and stability of solar cells， it should be better understood of 2D perovskites from the crystal structures， photoelectric properties as well as the device performances. In this paper， we first introduce the crystal types including the （100）， （110） and （111）-oriented structures. On this basis， the preferred orientations（out-of-plane and in-plane） and uniform/graded phase distributions are overviewed for the most studied （100）-oriented structure. To the understanding of the nucleation and crystallization processes of quasi-2D perovskite films， we then discuss the preparation methods from the perspective of one-step and two-step film-casting， respectively. Furthermore， we summarized the extensive researches on quasi-2D-PSCs and analyzed a series of significant results. Meanwhile， we highlight internal mechanism of quasi-2D perovskites stability and summarize superior long-term stability of quasi-2D perovskites and 3D/2D heterojunction perovskites. Last but not least， we further looked ahead to research trends in the future， such as： phase purity of 2D perovskites thin films， graded phase 2D perovskites thin films， modified interface， design of new organic spacer cations， 3D/2D heterojunction perovskites. Table and Figures | Reference | Related Articles | Metrics

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Research Progress of Flexible Tactile Sensors Applied to Wearable Electronics PAN Xiaojun, BAO Rongrong, PAN Caofeng Chem. J. Chinese Universities    2021, 42 (8): 2359-2373.   DOI: 10.7503/cjcu20210012 Abstract （1413）   HTML （85）    PDF（pc） （23620KB）（1184）       Knowledge map    Save The flexible tactile sensor is a type of device that imitates the human tactile. It can get the information and data of the human body and the external environment. The application in medical detection and intelligent robots provides a broad prospect. Recently， many researches have greatly improved the performance of flexible tactile sensors. In the first part of this review， the structure and basic performance of flexible tactile sensors is introduced. In the second part， we discuss a new type of tactile sensor with self-healing， self-driving and visualization. The third part discusses the application of flexible tactile sensors in wearable electronic technology， medical care and human-computer interaction interface. The final part of the article discusses the challenges that flexible tactile sensors will face in the future. Table and Figures | Reference | Related Articles | Metrics

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Influencing Factors and Promotion Strategies of the First-cycle Coulombic Efficiency of Silicon Suboxide Anodes in Lithium-ion Batteries LI Huiyang, ZHU Siying, LI Sha, ZHANG Qiaobao, ZHAO Jinbao, ZHANG Li Chem. J. Chinese Universities    2021, 42 (8): 2342-2358.   DOI: 10.7503/cjcu20210177 Abstract （2930）   HTML （111）    PDF（pc） （17233KB）（1131）       Knowledge map    Save The popularity of electric vehicles and various portable electronic devices has led to higher demands on battery energy density. Silicon suboxide（SiOx， 0<x≤2） shows high specific capacity and low Li-ion insertion potential， and the volume expansion effect is significantly lower than that of pure silicon anode， and therefore is considered to be one of the ideal alternatives to traditional graphite anode materials. However， the solid electrolyte interphase（SEI） and a large number of irreversible products are formed during the first lithiation/delithiation cycle， resulting in low Coulombic efficiency， which seriously hinders the practical application of SiOx anodes. On the basis of SiOx structure， this review systematically explained the lithium storage mechanism of SiOx anode and the reason for the low first-cycle efficiency. Further， strategies of improving the first Coulombic efficiency of SiOx anode in recent years is summarized in detail. Finally， the future direction of improving the first-cycle efficiency of SiOx anode is also forecasted. Table and Figures | Reference | Related Articles | Metrics

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Recent Progress in Photoelectrochemical H2 Production Coupled with Biomass-derived Alcohol/aldehyde Oxidation CHEN Wangsong, LUO Lan, LIU Yuguang, ZHOU Hua, KONG Xianggui, LI Zhenhua, DUAN Haohong Chem. J. Chinese Universities    2022, 43 (2): 20210683-.   DOI: 10.7503/cjcu20210683 Abstract （1618）   HTML （123）    PDF（pc） （2953KB）（1115）       Knowledge map    Save Biomass-derived alcohol/aldehydes are important platform compounds， which can be further converted into high-value-added chemicals or fuels through catalytic oxidation. Photoelectrocatalytic（PEC） technology driven by solar energy is one of the most green and efficient ways to realize the oxidation of biomass-derived alcohol/aldehydes. Compared with the traditional PEC water splitting process to produce both O2 and H2， the use of PEC oxidation of biomass-derived alcohol/aldehydes instead of anodic oxygen evolution process can not only increase the value of anodic products， but also improve the conversion efficiency of solar energy to hydrogen， which is of great significance for H2 production and high value chemical synthesis. In this review， we introduce the reaction mechanism of PEC H2 production coupled with biomass-derived alcohol/aldehyde oxidation， and summarize the recent progress in PEC oxidation of biomass-derived alcohol/aldehydes. Moreover， the opportunities and challenges in this field are also prospected. Table and Figures | Reference | Related Articles | Metrics

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Effects of Additive on the Electrodeposition and Coating Structure in a Novel System of Electronic Copper Electroplating LI Weiqing, JIN Lei, YANG Jiaqiang, Wang Zhaoyun, YANG Fangzu, ZHAN Dongping, TIAN Zhongqun Chem. J. Chinese Universities    2021, 42 (9): 2919-2925.   DOI: 10.7503/cjcu20210225 Abstract （897）   HTML （32）    PDF（pc） （3119KB）（1036）       Knowledge map    Save Electronic copper electroplating has important applications in the advanced electronic manufactu-ring industry. In this work， the effects of the additive XNS（a mixture of polyamine and nitrogen-containing compounds） on the coating structure in the novel， weakly alkaline and citrate-based multi-coordination system for copper electronic electroplating with low concentration of main salts（10 g/L copper sulfate） was investiga-ted. The constant current deposition experiments indicate that the additive XNS can increase the current efficiency of copper electrodeposition， which achieves 95.4% at a current density of 2.0 A/dm2 and increases by 17.5% comparing to the electroplating system without XNS. Electrochemical experiments prove that the additive XNS can change the cathodic reduction of Cu（Ⅱ） cations， i.e.， in presence of XNS which is a one-step two-electron process［Cu（Ⅱ）+2e→Cu］， and in absence of XNS which is a two-step one-electron processes ［Cu（Ⅱ）+e→Cu（Ⅰ）+e→Cu］， and improves the reduction current density of Cu electrodeposition. Although additive XNS can accelerate copper electrodeposition rate， the coating surface of Cu becomes much finer and neater. At the current density of 2.0 A/dm2， the crystal structure of copper coating is reconstructed from Cu（111） facet to Cu（200） facet， presenting highly preferred crystal orientation in the presence of XNS. Table and Figures | Reference | Related Articles | Metrics

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Visible Light-driven Carboxylation with CO2 ZHANG Zhen, DENG Yu, ZHANG Qinfang, YU Dagang Chem. J. Chinese Universities    2022, 43 (7): 20220255-.   DOI: 10.7503/cjcu20220255 Abstract （1433）   HTML （79）    PDF（pc） （11197KB）（993）       Knowledge map    Save Carbon dioxide（CO2） is not only a well-known greenhouse gas but also one important C1 resource. It is very important to realize organic transformations with CO2 to generate high value-added compounds. Given the importance of carboxylic acid and derivatives which are widely found in natural products， medicines， daily chemicals and industrial raw materials， the synthesis of carboxylic acids with CO2 has become an important research direction. On the other hand， high temperature and other harsh conditions are always required in this field due to the low reactivity of CO2. To solve such problems， visible light is used as an clean energy source to drive the effective transformations of CO2， which has been developed significantly in last few years. This review mainly introduced and summarized the visible light-driven carboxylation with CO2 in recent years， and classified them according to types of important chemical raw materials， such as alkenes， alkynes， aldehydes and ketones， imines organo（pseudo）halides and others. The characteristics and mechanisms of each reaction were discussed. In addition， this review also provided perspective to this emerging field. Reference | Related Articles | Metrics

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Recent Advances in Metal-organic Framework Derived Hollow Superstructures： Synthesis and Applications ZOU Yingying, ZHANG Chaoqi, YUAN Ling, LIU Chao, YU Chengzhong Chem. J. Chinese Universities    2023, 44 (1): 20220613-.   DOI: 10.7503/cjcu20220613 Abstract （387）   HTML （29）    PDF（pc） （27446KB）（977）       Knowledge map    Save Rational design of metal-organic framework（MOF） derived functional materials with elaborate structures is of great significance for diverse applications. Assembly of simple MOF derivatives as building blocks into hollow superstructures（HSSs） represents a promising strategy for creating higher-order structures with improved performance. Even many excellent reviews on MOF derivatives have been reported， a dedicated review from the angle of synthesis and applications of HSSs is still lacking. Here we provide a timely and systematic review on the recent advances of MOF derived HSSs. Firstly， five types of MOF derived HSSs are classified according to their architectural features. Then， the synthesis strategies for creating HSSs from MOF derivatives are summarized， with an emphasis on how to design MOF precursors and select conversion conditions. Afterwards， the promising applications of MOF derived HSSs in energy and catalysis related fields are highlighted. Finally， our perspectives on challenges and future opportunities in MOF-derived HSSs are presented， aiming to provide guidance for the design of advanced MOF derivatives with intricate structures and enhanced properties. Table and Figures | Reference | Related Articles | Metrics

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Research Progress of Polyoxometalates-Cyclodextrin Supramolecular System WEI Zheyu, WU Zhikang, RU Shi, NI Lubin, WEI Yongge Chem. J. Chinese Universities    2022, 43 (1): 20210665-.   DOI: 10.7503/cjcu20210665 Abstract （883）   HTML （36）    PDF（pc） （6367KB）（937）       Knowledge map    Save This paper reviewed representative work on cyclodextrin-based polyoxometalates supramolecular systems in recent years. Based on the structural types of different polyoxometalates in the polyoxometalates/cyclodextrin supramolecular complex， the corresponding induction and overview were carried out. It is hoped that this paper can arouse readers’ interest in the research of polyoxometalate/cyclodextrin supramolecular system， and provide some new ideas and inspiration for researchers. Table and Figures | Reference | Related Articles | Metrics

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Electrocatalytic CO2 Reduction over Single-atom Catalysts JIN Xiangyuan, ZHANG Libing, SUN Xiaofu, HAN Buxing Chem. J. Chinese Universities    2022, 43 (5): 20220035-.   DOI: 10.7503/cjcu20220035 Abstract （977）   HTML （63）    PDF（pc） （13736KB）（903）       Knowledge map    Save Electrochemical CO2 reduction reaction（e-CO2RR） is a promising and facile method to achieve carbon-neutral economy and sustainable development due its simple device and capability to consume renewable energy to produce high value-added chemicals. However， e-CO2RR suffers from low selectivity and low current density because of its sluggish kinetics and the weak activity of the catalysts. Hence， single-atom catalysts are one of the most ideal materials for e-CO2RR by virtue of its maximum atom utilization and well-defined catalytic active sites. Single atoms derived from transition metal and main group metal are comprehensively reviewed. Heteroatom coordination， dual-atom site， metal-support interactions， spatial confinement and molecular bridging to tailor the microenvironment of single atom to realize a better catalytic performance are also included. Single-atom catalysts extremely accelerate electrocatalytic CO2 reduction kinetics， which is ascribed to its unique electronic structure and enormous intrinsic highly active sites， indicating its state-of-the-art merits and broad application prospects. Reductive products that involve multi-electrons are desired for single-atom catalysts. Finally， research trends and hotspots in this field are also discussed. Table and Figures | Reference | Related Articles | Metrics

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MOF-derived Carbon-based Electrocatalysts Confinement Catalyst on O2 Reduction and CO2 Reduction Reactions ZHANG Xiaoyu, XUE Dongping, DU Yu, JIANG Su, WEI Yifan, YAN Wenfu, XIA Huicong, ZHANG Jianan Chem. J. Chinese Universities    2022, 43 (3): 20210689-.   DOI: 10.7503/cjcu20210689 Abstract （1168）   HTML （48）    PDF（pc） （1211KB）（866）       Knowledge map    Save The massive consumption of fossil fuels and the gradual deterioration of the environment urgently require the development and exploration of effective energy conversion and storage technologies. Electrochemistry is the basis and key of all kinds of energy storage and conversion devices. The design and synthesis of non-noble metal-based and non metal-based catalysts with high catalytic activity are obviously the best choice. The metal organic framework （MOF） derived carbon-based materials have the characteristics of large specific surface area and high porosity， which can selectively confine metals of different types. Therefore， MOF has a good confinement effect when used as a catalyst， which is beneficial to improve the activity and stability of the catalyst. In this review， the confinement effects of MOF-derived materials in catalytic reactions are clarified， and the latest progresses of MOF-derived carbon-based materials in oxidation reduction reaction（ORR） and CO2 reduction reaction（CO2RR） electrocatalysis are introduced， and the structure-activity relationships of MOF-derived carbon-based materials in electrocatalytic reactions are revealed. Finally， the challenges and opportunities faced by MOF-confined carbon-based materials in ORR and CO2RR electrocatalysis are discussed， as well as the possible solutions in the future. Table and Figures | Reference | Related Articles | Metrics

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Recent Progress in Heterogeneous Catalysts for the Hydrogenation of Carbon Dioxide to Methanol ZHOU Zixuan, YANG Haiyan, SUN Yuhan, GAO Peng Chem. J. Chinese Universities    2022, 43 (7): 20220235-.   DOI: 10.7503/cjcu20220235 Abstract （934）   HTML （68）    PDF（pc） （12477KB）（860）       Knowledge map    Save The utilization of fossil fuels has enabled an unprecedented era of prosperity and advancement of well- being for human society. However， the associated increase in anthropogenic carbon dioxide（CO2） emissions can negatively affect global temperatures and ocean acidity. Moreover， as a limited resource， the depletion of fossil fuels will ultimately force one to seek alternative carbon sources to maintain a sustainable development. Using green hydrogen obtained from the water electrolysis process carried out using electricity generated from renewable sources， the hydrogenation of captured CO2 to methanol not only efficiently utilizes the excess effluent CO2 from industrial gaseous waste， but also produces a clean and renewable chemical feedstock of methanol， the core of which is to develop highly efficient and stable catalysts for methanol formation. In this review， we discuss the reaction mechanism and structure-activity relationship of common heterogeneous catalysts for CO2 hydrogenation to methanol which has attracted great attention in the past decades. We also review the latest development in the design and synthesis of heterogeneous catalysts（Cu-based catalyst， noble metal catalyst and bimetallic catalysts， oxide catalyst and other novel catalysts） for methanol synthesis through the direct hydrogenation of CO2. Moreover， the opportunities and challenges in this field are also prospected. Table and Figures | Reference | Related Articles | Metrics

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Advances in Silicon and Silicon-based Anode Materials HAN Muyao, ZHAO Lina, SUN Jie Chem. J. Chinese Universities    2021, 42 (12): 3547-3560.   DOI: 10.7503/cjcu20210639 Abstract （1320）   HTML （79）    PDF（pc） （1886KB）（827）       Knowledge map    Save Silicon（Si） has high theoretical capacity， low voltage platform and abundant natural resources， which has the potential to become the next generation high energy density lithium ion batteries anode material. However， Si has low inherent conductivity and great volume change in the cycle process， which is different from graphite and should not be directly used as an anode material. Therefore， many modification strategies have been developed to improve or adapt to Si based anode materials from dimension structure， composites， binders and electrolytes， so as to meet the requirements of commercialization. In this paper， the research pro-gress of Si based anode materials in recent years was reviewed， the design elements of different aspects were summarized， and the performance of representative materials was introduced. Finally， the problems faced by Si based anode materials were briefly analyzed， and the research prospect of Si based anode materials as lithium ion batteries was forecasted. Table and Figures | Reference | Related Articles | Metrics

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Progress of Graphene Oxide/Polymer Composite Hydrogel LI Peihong, ZHANG Chunling, DAI Xueyan, SUI Yanlong Chem. J. Chinese Universities    2021, 42 (6): 1694-1703.   DOI: 10.7503/cjcu20200869 Abstract （1332）   HTML （59）    PDF（pc） （6667KB）（813）       Knowledge map    Save Graphene oxide（GO） is a popular two-dimensional material with excellent mechanical properties， good water dispersibility， non-toxicity， and good biocompatibility， and its surface has a large number of oxygen-containing functional groups. Therefore， GO is an ideal hydrogel raw material. Hydrogel is a multi- element system with a three-dimensional network structure and water as the filling medium. The introduction of GO into the hydrogel system can improve the mechanical properties of the hydrogel and enrich its stimulus response types. At present， GO hydrogel has excellent performance in many fields such as high strength， adsorption， self-healing materials and sensors， and has become one of the research hotspots. The research of GO hydrogel has a history of ten years. In this review， the preparation methods of GO hydrogels are summarized， including acidification and the addition of polymers， small organic molecules or ions as crosslinking agents. Among them， GO/polymer composite hydrogels prepared by physical mixing and chemical crosslinking and polymerization methods are the most common. The response mechanism and research progress of smart GO hydrogels are summarized in terms of photo-thermal response， pH response and self-healing. The application prospects of GO hydrogels in high strength hydrogels， biomedicine science， smart materials and sewage treatment are reviewed. Table and Figures | Reference | Related Articles | Metrics

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Recent Advances in Lanthanide Doped Upconversion Nanoparticle-Metal Organic Framework Composites WEI Minmin, YUAN Ze, LU Min, MA Hui, XIE Xiaoji, HUANG Ling Chem. J. Chinese Universities    2021, 42 (8): 2313-2323.   DOI: 10.7503/cjcu20210109 Abstract （873）   HTML （55）    PDF（pc） （17699KB）（787）       Knowledge map    Save Lanthanide doped upconversion nanoparticle-metal organic framework composites recently emerge as a new type of functional composites. The composites possess the merits of both lanthanide doped upconversion nanoparticles and metal organic frameworks， exhibit synergistic effects， and holds several advantages， including flexible design and easy functionalization. Herein， we focus on recent advances in the lanthanide doped upconversion nanoparticle-metal organic framework composites. We first review the synthetic strategies of the composites， and then discuss representative applications of the composites in diverse fields， such as biology and catalysis. We also envision the challenges and perspectives on the future development of the lanthanide doped upconversion nanoparticle-metal organic framework composites. Table and Figures | Reference | Related Articles | Metrics

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Supramolecular Interactions Induced Chiral Assembly of Plasmonic Nanoparticles with Enhanced Optical Asymmetry LIU Dongsheng Chem. J. Chinese Universities    2021, 42 (6): 1619-1621.   DOI: 10.7503/cjcu20210293 Abstract （1139）   HTML （90）    PDF（pc） （2441KB）（785）       Knowledge map    Save Science has recently reported the important progress of chiral nanomaterials achieved by LIU Kun’s group from Jilin University and coworkers. Supramolecular interactions of gold nanorods（NRs） with human islet amyloid peptides catalyze their assembly into metallic superstructures with unusually high cholesteric order. Contrary to current theories， the transition from individual NRs to long straight helices leads to increase of g-factor（up to 0.12） by 4600 times. This work establishes the link between the liquid crystals and chiral inorganic nanostructures； provides unifying design principles for organic and inorganic optically active media and opens new modalities for drug discovery for amyloid diseases. Table and Figures | Reference | Related Articles | Metrics

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Hydrogel-based Bioinspired Ion Channels： Fabrication and Controllable Ion Transport CHEN Weipeng, KONG Xiangyu, WEN Liping Chem. J. Chinese Universities    2023, 44 (6): 20220772-.   DOI: 10.7503/cjcu20220772 Abstract （586）   HTML （40）    PDF（pc） （14959KB）（777）       Knowledge map    Save The controllable ion transport is the basis of most physiological activities， such as the transmission of neural signals， the perception of external stimuli， etc. The key to realize the controllable ion transport is the various protein ion channels in life system. Inspiring researchers endeavor to develop artificial ion channels to subtly tune the ion transportation. Among the developed ion channels， hydrogel-based system exhibits the advantages of high ion selectivity and high ion conductance due to its three-dimensional（3D） charged networks induced space charges and 3D interconnection channels. As hydrogel-based ion channels hold the biocompatibility， deformability， and stable ion storage properties， it has been the focus in intelligence ion transport field and shows great potential in ion electronic circuits， medical health， energy conversion and storage， resources， and environment. To summarize the latest development of the hydrogel-based ion channels， we firstly overview on the construction methods of hydrogel-based intelligent ion channels. Thereafter， the ion transport mechanisms in the hydrogel-based ion channels are summarized， and the applications of such ion channels are categorized. At last， we discuss the existed issues and give the perspective on future development of hydrogel-based ion channels. Table and Figures | Reference | Related Articles | Metrics

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Research Progress of Metal⁃organic Frameworks on Liquid Phase Catalytic Chemical Hydrogen Production LI Shurong, WANG Lin, CHEN Yuzhen, JIANG Hailong Chem. J. Chinese Universities    2022, 43 (1): 20210575-.   DOI: 10.7503/cjcu20210575 Abstract （871）   HTML （41）    PDF（pc） （8516KB）（767）       Knowledge map    Save Metal-organic frameworks（MOFs） as an emerging class of inorganic porous materials， are typical inorga? nicorganic hybrids composed of metal nodes and organic connectors. MOFs have shown broad application prospects in many fields， including industrial synthesis， energy development， environmental governance and biopharmaceutical due to their highly ordered porosity， structure tailorability， high specific surface area and flexible skeleton types. In this review， starting from the development and utilization of hydrogen energy， we summarize the recent progress on catalytic hydrogen production from chemical hydrogen storage materials by MOF?based nanocomposites. The hydrogen storage materials are common amino borane， formic acid and hydrazine hydrate with high hydrogen content. Catalysts are mainly MOF?based noble and non-noble metal composites， and MOF?based derived materials. Finally， the application prospect of MOFs?based materials in liquid phase catalytic chemical hydrogen storage is prospected. Table and Figures | Reference | Related Articles | Metrics

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有机太阳能电池专刊 李永舫, 陈红征, 朱晓张, 何凤 Chem. J. Chinese Universities    2023, 44 (9): 1-4.   Abstract （260）      PDF（pc） （1427KB）（720）       Knowledge map    Save Related Articles | Metrics