Studies on the Synthesis, Spectroscopy and Catalytic Properties of CrCoBEA Metallosilicate

Abstract

Abstract: Metallosilicates with BEAstructure simultaneously containing chromium and cobalt have been hydrothermally synthesized for the first time under static conditions. By varying temperature, time as well as concentration of the starting materials, the optimal conditions for the synthesis of CrCoBEAmolecular sieve were deduced. The crystallinity, spectroscopic property and catalytic activity of CrCoBEAwere evaluated by means of XRD, FTIR, UV-Vis DRS, ESRand catalytic tests, respectively. The result reveals that crystallization with gel molar composition of TEOS∶0.017[Cr(acac)₃]∶0.017[Co(acac)₃]∶(0.580.64)TEAOH∶0.01Al(NO₃)₃∶(1620)H₂Oat 408428 Kafter 90150 h gave a high crystallinity, uni-phased Cr-CoBEAmolecular sieve. Both chromium and cobalt ions incorporated into the framework during crystallization were highly dispersed with multiple chemical status. The CrCoBEAmolecular sieve exhibited promising catalytic activities in the selective oxidation of cyclohaxene with dilute H₂O₂ and the decomposition of NO. The order of activity for selective oxidation of cyclohexene and decomposition of NOwere CrCoBEA>CoBEA>CrBEAand CrBEA>CrCoBEA>CoBEA, respectively.

Key words: Hydrothermal crystallization, Metallosilicates, Spectroscopic property, Selective oxidation, Decomposition of NO

CLC Number:

O614.32

TrendMD:

WANG Ya-Jun, TANG Xiang-Hai, ZHU Rui-Zhi, PAN Lü-Rang  . Studies on the Synthesis, Spectroscopy and Catalytic Properties of CrCoBEA Metallosilicate[J]. Chem. J. Chinese Universities, 2000, 21(7): 999.

[1]	LI Yichuan, ZHU Guofu, WANG Yu, CHAI Yongming, LIU Chenguang, HE Shengbao. Effects of Substrate Surface Properties and Precursor Chemical Environment on In⁃situ Oriented Construction of Titanium Silicalite Zeolite Membranes [J]. Chem. J. Chinese Universities, 2021, 42(9): 2934.
[2]	LI Chenchen, NA Yong. g-C₃N₄/CdS/Ni Composite as a Bifunctional Photocatalyst for H₂ Generation and 5-Hydroxymethylfurfural Oxidation [J]. Chem. J. Chinese Universities, 2021, 42(9): 2896.
[3]	XIONG Junyu, WANG Shanshan, XU Yanqing, HU Changwen. Selective Oxidation of Atomically Dispersed Fe-N-C Catalyst Under Mild Conditions ^† [J]. Chem. J. Chinese Universities, 2020, 41(6): 1262.
[4]	HE Zhechao, XIA Kun, WANG Jing, ZHOU Dan, LU Xinhuan, XIA Qinghua. Controllable Synthesis of SAPO-5 Molecular Sieves and Exploration of the Crystallization Process ^† [J]. Chem. J. Chinese Universities, 2020, 41(6): 1224.
[5]	WAN Hai, ZHANG Xiaoyu, ZHANG Ruojie, ZHANG Xiaotong, SONG Lijuan. Synthesis of High Performance ZSM-5-L Composite Zeolite and Its Catalytic Properities for n-Pentane Aromatization^† [J]. Chem. J. Chinese Universities, 2014, 35(10): 2220.
[6]	WANG Yan-Mei, CAI Shu-Lan, HE Lin-Xin, ZHU Sha-Sha, WANG Jun, LIN Xiao, LI Yu-Long, ZOU Li-Ke. Crystal Structure, Spectroscopic Properties and Antibacterial Activity of Binuclear Lead Complex with O, O'-Di(p-methylphenyl)dithiophosphate [J]. Chem. J. Chinese Universities, 2013, 34(1): 30.
[7]	ZHANG Jian-Po, JIN Li*, ZHANG Hong-Xing, BAI Fu-Quan. Structures and Spectroscopic Properties of Highly Efficient Luminescence Material Cationic [(C^N)2IrL]+ Complexes [J]. Chem. J. Chinese Universities, 2011, 32(12): 2885.
[8]	SHI Xian-Ying, MA Wen-Juan, HAN Xiao-Yan, ZHANG Wen, Lü Ai-Feng, WEI Jun-Fa*. Selective Oxidation of Sulfides with Hydrogen Peroxide Catalyzed by Supported Ionic Liquid Brush / Peroxophosphotungstate [J]. Chem. J. Chinese Universities, 2011, 32(10): 2321.
[9]	QU Yuan-Li, LIU Shi-Yan, WANG Zhen-Lü, XU Jia-Ning. Selective Oxidation of Isobutene to Methacrolein over Molybdenum-based Multiphasic Oxide Catalysts [J]. Chem. J. Chinese Universities, 2010, 31(2): 325.
[10]	ZHANG Yan, WANG Rui-Xin, GAO Bao-Jiao*, GUO Hao-Peng. Preparation and Spectroscopic Properties of Line-Type Poly(glyceryl methacrylate) Bonding Manganoporphyrin on Side Chain [J]. Chem. J. Chinese Universities, 2008, 29(3): 634.
[11]	ZHU Wan-Chun, JIA Ming-Jun , WANG Zhen-Lü, WANG Guo-Jia, WU Tong-Hao. Selective Oxidation of Isobutane over Hydrothermally Synthesised Mo-V-Te-Nb-O Mixed Oxide Catalyst [J]. Chem. J. Chinese Universities, 2007, 28(2): 334.
[12]	LI Xiu-Kai, LEI Yu, ZHAO Jing, JI Wei-Jie, ZHANG Zhi-Bing, CHEN Yi. Effects of Variation of Elemental Compositions of Cesium Salts of Keggin Type Heteropolyacids on Selectively Catalytic Oxidation Performance of Propane [J]. Chem. J. Chinese Universities, 2005, 26(9): 1712.
[13]	TU Xue-Yan, TIAN Kai, DAI Shu-Shan. Density Functional Study of NO Adsorption and Direct Decomposition on Rh(100) and Rh(111) Surfaces [J]. Chem. J. Chinese Universities, 2005, 26(12): 2354.
[14]	TU Xue-Yan,TIAN Kai,DAI Shu-Shan. Density Functional Study of NO Adsorption and Direct Decomposition on Rh(100) and Rh(111) Surfaces [J]. Chem. J. Chinese Universities, 2005, 26(12): 2354.
[15]	YUAN You-Zhu, CAO Wei, TSAI Khi-Rui, IWASAWA Yasuhiro. Correlation of Performance and Structure of Supported Rhenium Catalysts for Methanol Selective Oxidation [J]. Chem. J. Chinese Universities, 2002, 23(5): 902.

Studies on the Synthesis, Spectroscopy and Catalytic Properties of CrCoBEA Metallosilicate

PDF (PC)

Knowledge

Cited

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments