Catalytic combustion of chlorobenzene over VOx/CeO2 catalysts

被引：174

作者：

Huang, Hao ^{[1
]}

Gu, Yufeng ^{[1
]}

Zhao, Jian ^{[1
]}

Wang, Xingyi ^{[1
]}

机构：

[1] E China Univ Sci & Technol, Res Inst Ind Catalysis, Adv Mat Lab, Shanghai 200237, Peoples R China

来源：

JOURNAL OF CATALYSIS | 2015年 / 326卷

基金：

中国国家自然科学基金;

关键词：

Chlorobenzene; Vanadium; Ceria; Catalytic combustion; SUPPORTED VANADIA CATALYSTS; VOLATILE ORGANIC-COMPOUNDS; IN-SITU FTIR; OXIDE CATALYSTS; TOTAL OXIDATION; CHLORINATED HYDROCARBONS; V2O5/TIO2; CATALYSTS; O-DICHLOROBENZENE; REDOX PROPERTIES; LOW-TEMPERATURE;

D O I：

10.1016/j.jcat.2015.02.016

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

VOx/CeO2 catalysts with various loadings of VOx were prepared by wet impregnation method and used in catalytic combustion of chlorobenzene (CB). Characterized by XRD, Raman, XPS, HRTEM, H-2-TPR, and O-2-TPD revealed that VOX on CeO2 support was identified as monomeric, oligomeric, or polymeric VOx and CeVO4. Monomeric VOX promoted oxygen vacancies and hence increased in surface oxygen and oxygen mobility. VOx/CeO2 catalysts had considerable activity for CB combustion. The highest value of TOF (0.023 min(-1)) was obtained on VOx/CeO2 catalysts with monomeric VOX. VOx greatly improved the stability of VOx/CeO2 catalysts through retarding the exchange of Cl for basic surface lattice oxygen of CeO2. High stability maintained at 285 degrees C for at least 1000 min. In situ FTIR and Raman indicated that CB adsorption on CeO2 was much stronger than Vo(X), and different reaction pathways were related to different types of oxygen species existing on the surface of VOx/CeO2 catalysts. (C) 2015 Elsevier Inc. All rights reserved.

引用

页码：54 / 68

页数：15

共 50 条

[21] Catalytic combustion of chlorobenzene over supported metal oxide catalysts
Moon, SW
Lee, GD
Park, SS
Hong, SS
[J]. JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, 2004, 10 (04) : 661 - 666
[22] Effect of Oxygen Defects on the Catalytic Performance of VOx/CeO2 Catalysts for Oxidative Dehydrogenation of Methanol
Li, Yan
Wei, Zhehao
Gao, Feng
Kovarik, Libor
Baylon, Rebecca A. L.
Peden, Charles H. F.
Wang, Yong
[J]. ACS CATALYSIS, 2015, 5 (05): : 3006 - 3012
[23] New insights into the role of vanadia species as active sites for selective catalytic reduction of NO with ammonia over VOx/CeO2 catalysts
Farong Ji
Chenxu Li
Jianqiang Wang
Jun Wang
Meiqing Shen
[J]. Journal of Rare Earths, 2020, 38 (07) : 719 - 724
[24] Effects of preparation methods on CoAlOx/CeO2 catalysts for methane catalytic combustion
Fan, Xionghua
Li, Luming
Jing, Fangli
Li, Jing
Chu, Wei
[J]. FUEL, 2018, 225 : 588 - 595
[25] Biotemplate preparation of Ru/CeO2 catalysts for the catalytic combustion of vinyl chloride
Shen, Kai
Ding, Qing
Fan, Hu
Pan, Fanda
Shou, Yuedian
Jiao, Kaixuan
Xia, Chen
Xie, Baocheng
Zhan, Wangcheng
Guo, Yanglong
Guo, Yun
Wang, Li
Dai, Qiguang
Wang, Aiyong
[J]. CATALYSIS COMMUNICATIONS, 2023, 184
[26] Morphological Effect of CeO2 Catalysts on Their Catalytic Performance in Lean Methane Combustion
Li, Shuna
Zhang, Yagang
Wang, Zina
Du, Wei
Zhu, Gang
[J]. CHEMISTRY LETTERS, 2020, 49 (05) : 461 - 464
[27] Catalytic oxidation of carbon monoxide over CoOx/CeO2 catalysts
Kang, M
Song, MW
Kim, KL
[J]. REACTION KINETICS AND CATALYSIS LETTERS, 2003, 79 (01): : 3 - 10
[28] Low-temperature catalytic combustion of benzene over Ni-Mn/CeO2/cordierite catalysts
Li, B.
Huang, Q.
Yan, X. K.
Xu, X. L.
Qiu, Y.
Yang, B.
Chen, Y. W.
Zhu, S. M.
Shen, S. B.
[J]. JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, 2014, 20 (04) : 2359 - 2363
[29] Catalytic combustion of benzene over CuO/CeO2 catalysts prepared using the precipitation-deposition method
Jung, Won Young
Lim, Kwon-Taek
Lee, Gun Dae
Park, Seong Soo
Lee, Man Sig
Hong, Seong-Soo
[J]. RESEARCH ON CHEMICAL INTERMEDIATES, 2011, 37 (09) : 1345 - 1354
[30] Reactions of ethanol over CeO2 and Ru/CeO2 catalysts
Mudiyanselage, K.
Al-Shankiti, I.
Foulis, A.
Llorca, J.
Idriss, H.
[J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2016, 197 : 198 - 205

← 1 2 3 4 5 →