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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 （156）      PDF（pc） （53746KB）（1856）       Knowledge map    Save 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 （1422）   HTML （79）    PDF（pc） （11197KB）（977）       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 （381）   HTML （29）    PDF（pc） （27446KB）（969）       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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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 （968）   HTML （62）    PDF（pc） （13736KB）（885）       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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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 （925）   HTML （68）    PDF（pc） （12477KB）（852）       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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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 （580）   HTML （39）    PDF（pc） （14959KB）（775）       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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Progress of CO2 Electroreduction to Oxalic Acid SONG Dewen, WANG Mingwang, WANG Yani, JIAO Zhenmei, NING Hui, WU Mingbo Chem. J. Chinese Universities    2022, 43 (7): 20220248-.   DOI: 10.7503/cjcu20220248 Abstract （816）   HTML （53）    PDF（pc） （4807KB）（707）       Knowledge map    Save In recent years， climate issues such as global warming caused by excessive carbon dioxide emissions have attracted wide attention around the world. And carbon emission reduction has become a common challenge to the sustainable development of human society. The conversion of carbon dioxide into high value-added chemicals by electrochemical methods is one of the ideal ways to achieve emission reduction and high value-added utilization of carbon dioxide. However， there are still many problems such as high energy consumption， low carbon dioxide conversion， poor product selectivity and difficult separation. In this paper， we take the electroreduction of carbon dioxide to oxalic acid as an example， comprehensively introduce the research progress from the aspects of reaction mechanism， catalysts， electrolyte， electrode and reactor. The key problems in the production of oxalic acid by carbon dioxide electroreduction are discussed and some valuable suggestions are put forward for the future research of carbon dioxide electroreduction to oxalic acid. Table and Figures | Reference | Related Articles | Metrics

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Cover and Content of Chemical Journal of Chinese Universities Vol.44 No.9(2023) Chem. J. Chinese Universities    2023, 44 (9): 1-6.   Abstract （2）      PDF（pc） （18959KB）（704）       Knowledge map    Save 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 （256）      PDF（pc） （1427KB）（696）       Knowledge map    Save Related Articles | Metrics

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Ordered Mesoporous Materials： History， Progress and Perspective GUO Cheng, ZHANG Wei, TANG Yun Chem. J. Chinese Universities    2022, 43 (8): 20220167-.   DOI: 10.7503/cjcu20220167 Abstract （863）   HTML （44）    PDF（pc） （21747KB）（675）       Knowledge map    Save Ordered mesoporous materials with pore diameters ranged from 2 nm to 50 nm possess ordered mesostructures， high surface areas， large pore volumes and tunable compositions， which have received great research interests in many fields. In the past decades， the precise synthesis， rational design， and controllable functionalization of ordered mesoporous materials have made great progresses， thereby laying a solid foundation for the practical applications， including energy storage and conversion， catalysis， biomedicine， and sensing. This review first summarizes the development history of ordered mesoporous materials comprehensively， and the milestones in this field are reviewed in detail. After that， based on the structure-property relationship， the latest progresses of ordered mesoporous materials in emerging fields， such as energy， catalysis and biomedicine are overviewed. In the last， the research challenges in this field are presented and the future perspectives are outlined. Table and Figures | Reference | Related Articles | Metrics

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Application of DNA Silver Nanoclusters in the Fluorescence Biosensors based on Functional Nucleic Acids WANG Junyang, LIU Zheng, ZHANG Qian, SUN Chunyan, LI Hongxia Chem. J. Chinese Universities    2022, 43 (6): 20220010-.   DOI: 10.7503/cjcu20220010 Abstract （666）   HTML （412）    PDF（pc） （10068KB）（579）       Knowledge map    Save DNA silver nanoclusters（DNA-AgNCs） are a kind of fluorescent nanoprobes obtained by reducing Ag+ with NaBH4 using DNA as template， because the N atoms on the base heterocyclic are combined with Ag+. Due to the advantages of simple synthesis method， good biocompatibility and adjustable fluorescence emission wavelength， DNA-AgNCs have been widely used in the fields of analysis and detection. In this paper， the application of DNA-AgNCs as label-free fluorescent probes in functional nucleic acids biosensing detection is classified and summarized. In addition， conclusive views on the deficiencies and application potential are put forward， which provide references for future research and application. Table and Figures | Reference | Related Articles | Metrics

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Research Progress of Single Atomic Catalysts in Lithium-sulfur Batteries YIN Xiaoju, SUN Xun, ZHAO Chenghao, JIANG Bo, ZHAO Chenyang, ZHANG Naiqing Chem. J. Chinese Universities    2022, 43 (5): 20220076-.   DOI: 10.7503/cjcu20220076 Abstract （612）   HTML （26）    PDF（pc） （26445KB）（556）       Knowledge map    Save Lithium-sulfur batteries have become one of the most promising development directions of prospective high-energy-density storage devices due to their outstanding features such as high energy density and low material cost. However， the crucial problems， such as low sulfur utilization rate， short cycle life， and poor rate performance， need to be solved in lithium-sulfur batteries. Single-atom catalysts exhibit high atom utilization and structural adjus-tability at atomic scale. This review summarizes the latest research progress of single-atom catalysts in lithium-sulfur batteries from three aspects： cathode， anode， and separator/interlayer. Finally， we prospect the future development direction and the scientific and technological issues of single-atom catalysts in lithium-sulfur batteries， in order to promote their further widespread applications. Table and Figures | Reference | Related Articles | Metrics

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Cover and Content of Chemical Journal of Chinese Universities Vol.44 No.10(2023) Chem. J. Chinese Universities    2023, 44 (10): 1-6.   Abstract （207）      PDF（pc） （23330KB）（549）       Knowledge map    Save Related Articles | Metrics

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Current Advances and Future Challenges of Single-atom Catalysis ZHUANG Jiahao, WANG Dingsheng Chem. J. Chinese Universities    2022, 43 (5): 20220043-.   DOI: 10.7503/cjcu20220043 Abstract （1515）   HTML （73）    PDF（pc） （30735KB）（548）       Knowledge map    Save Single-atom catalysts（SACs）， which combines the advantages of homogeneous and heterogeneous catalysts， have attracted great research interest due to their maximum atomic utilization efficiency， superior catalytic performance and easy separation from reaction systems. However， due to the high surface energy and thus instability of single atoms， it remains a great challenge to rational design and fabricate stable SACs. In this review， we summarized and discussed the advances of stabilizing strategies， high-loading synthesis and batch preparation for SACs in recent years. We also envisioned the challenges on the future development of SACs. Finally， the research prospect of single-atom catalysis was forecasted. Table and Figures | Reference | Related Articles | Metrics

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Cover and Content of Chemical Journal of Chinese Universities Vol.43 No.11(2022) Chem. J. Chinese Universities    2022, 43 (11): 1-8.   Abstract （199）      PDF（pc） （35345KB）（530）       Knowledge map    Save Related Articles | Metrics

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Application of Electrospun Hollow Nanofibers in Catalysis LI Huaike, YUE Guichu, XIE Haiyun, LIU Jing, GAO Songwei, HOU Lanlan, LI Shuai, MIAO Beibei, WANG Nyu, BAI Jie, CUI Zhimin, ZHAO Yong Chem. J. Chinese Universities    2023, 44 (1): 20220625-.   DOI: 10.7503/cjcu20220625 Abstract （277）   HTML （11）    PDF（pc） （23799KB）（515）       Knowledge map    Save Larger specific surface area， richer interfacial composition， and more efficient mass transfer paths are the keys to constructe multi-component catalytic systems and improve catalyst efficiency. Hollow nanofibers with multiple cavity structures show great capability to adjust their specific surface area and interface composition， and become an ideal platform for preparing highly efficient heterogeneous catalysts. The development of electrospinning technology provides a simple and efficient method for the controllable preparation of hollow nanofibers， and effectively promotes the structural innovation and application expansion of hollow nanofibers. In this review， the unique advantages of hollow nanofiber materials with different composition and morphology prepared by electrospinning in the application of catalysis（including photocatalysis， electrocatalysis and thermocatalysis） are summarized from three aspects： construction strategies， structural characteristics and the corresponding relationship between structure and performance. Firstly， the different structural forms of hollow nanofibers prepared by innovative electrospinning methods combined with subsequent processes are demonstrated， and then the research progress of constructing high-efficiency catalysts based on hollow nanofibers are reviewed. Finally， the future development trends of the applications of hollow nanofibers in the field of catalysis are summarized and prospected to provide a useful reference for the design of high-efficient heterogeneous catalysts. Table and Figures | Reference | Related Articles | Metrics

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Recent Advances in Single-atom Materials for Enzyme-like Catalysis and Biomedical Applications SHA Meng, XU Weiqing, WU Zhichao, GU Wenling, ZHU Chengzhou Chem. J. Chinese Universities    2022, 43 (5): 20220077-.   DOI: 10.7503/cjcu20220077 Abstract （683）   HTML （28）    PDF（pc） （14879KB）（499）       Knowledge map    Save Nanozymes featuring with economic cost， high stability， tunable properties， have captured broad interest to break through the limitations of enzymes in practice. The emergency of single-atom materials pushes forward the nanozymes research into the atomic level. Single-atom materials with high atomic utilization efficiency， unique coordination environments and strong metal-support interactions offer great opportunities to reveal their structure-activity relationship and regulate their enzyme-like activities. In this review， recent advances of single-atom materials for enzyme mimicking and biomedical applications were depicted. First， the regulation strategies and catalytic mechanisms of enzyme-like activities were discussed in detail. Then， the applications of single-atom nanomaterials for enzyme mimicking were elucidated in terms of cancer treatment， antioxidant therapy， antibacterial and biosensing. Finally， the limitations， challenges and development prospects of single-atom nanomaterials for enzyme-like catalysis were proposed. Table and Figures | Reference | Related Articles | Metrics

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Visible-light-driven Selective Reduction of Carbon Dioxide Catalyzed by Earth-abundant Metalloporphyrin Complexes QIU Liqi, YAO Xiangyang, HE Liangnian Chem. J. Chinese Universities    2022, 43 (7): 20220064-.   DOI: 10.7503/cjcu20220064 Abstract （647）   HTML （30）    PDF（pc） （8391KB）（495）       Knowledge map    Save With the increasing energy shortage and environmental problems， the search for clean and renewable energy sources to replace fossil fuels is one of the most urgent tasks facing scientists in this century. In order to achieve our "carbon neutrality" strategic goal， the conversion of carbon dioxide（CO2） into clean fuels and chemicals using solar energy is one of the ways to achieve the sustainable development of our society. The catalyst is the core component of CO2 photoreduction technology， which can adsorb gaseous CO2 molecules and reduce them to small energy molecules such as carbon monoxide（CO）， formic acid（HCOOH）， methanol（CH3OH） and methane（CH4） under visible light irradiation. Currently， promising progress has been made in the development of novel CO2 reduction photocatalytic systems. This review summarizes the recent progress of homogeneous and heterogeneous earth-abundant metalloporphyrin-based catalysts for photocatalytic CO2 reduction， and introduces the reaction mechanism of CO2 photoreduction to CO or CH4 by homogeneous metalporphyrin catalysts， respectively， and also discusses the important applications of metalloporphyrin-based porous organic polymers with porphyrin organometallic frameworks for photocatalytic CO2 reduction. Finally， the prospect of visible-light-driven metalloporphyrin complex-catalyzed CO2 reduction is presented. Table and Figures | Reference | Related Articles | Metrics

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Progress and Perspective on Molybdenum Disulfide with Single-atom Doping Toward Hydrogen Evolution LIN Gaoxin, WANG Jiacheng Chem. J. Chinese Universities    2022, 43 (9): 20220321-.   DOI: 10.7503/cjcu20220321 Abstract （496）   HTML （14）    PDF（pc） （14184KB）（486）       Knowledge map    Save Layered molybdenum disulfide（MoS2） has attracted much attention in electrochemical hydrogen generation due to its unique physicochemical properties. The hydrogen inert surface of MoS2 results in the inferior hydrogen evolution reaction（HER） activity to Pt in both acid and alkaline media. Confining single atoms（SAs） on MoS2 is a promising method to activate the basal plane， making MoS2 an advanced HER electrocatalyst. Herein， this perspective starts with the structure of SA-MoS2， and discusses the role of SAs for enhanced catalytic activity. Subsequently， synthesis methods， characterization techniques and recent progress of SA-MoS2 are summarized. It highlights the importance of surface defects induced by SAs in activated basal plane to achieve high electrocatalytic performance. Finally， based on the progress of SA-MoS2 in HER， this perspective presents general guidelines and research challenges in this promising field. Table and Figures | Reference | Related Articles | Metrics

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Research Progress of Single-atom Catalysts in Photocatalytic Reduction of Carbon Dioxide TAO Yu, OU Honghui, LEI Yongpeng, XIONG Yu Chem. J. Chinese Universities    2022, 43 (5): 20220143-.   DOI: 10.7503/cjcu20220143 Abstract （960）   HTML （43）    PDF（pc） （10632KB）（484）       Knowledge map    Save The conversion of carbon dioxide into value-added carbon-containing chemicals or fuels through photo-catalytic technology is one of the sustainable ways to solve the energy crisis and greenhouse effect. However， it is a great challenge to pursue catalysts with high efficiency， low price， and high stability for improving the efficiency of photocatalytic reduction reaction of CO2（CO2RR）. Single atom catalysts（SACs） have been widely studied in the field of catalysis because of their high atomic utilization and adjustable electronic environment. In photocatalysis of CO2RR， the addition of single metal atoms can not only adjust the energy band structure and the light adsorption ability of catalysts， but also effectively improve the efficiency of photogenerated charge transfer， and provide an ideal platform for the study of photocatalytic reaction mechanism. In recent years， the research of SACs in CO2RR has developed rapidly. In this paper， the progress of SACs of photocatalytic CO2RR is summarized， and the typical research results of SACs with different supports are introduced， and the future research trend is prospected. Table and Figures | Reference | Related Articles | Metrics