Novel synthetic route to Ce-Cu-W-O microspheres for efficient catalytic oxidation of vinyl chloride emissions

作     者：Xiaoshan Feng Yingbin Zheng Daifeng Lin Enhui Wu Yongjin Luo Yufeng You Hun Xue Qingrong Qian Qinghua Chen 冯晓珊;郑颖滨;林代峰;吴恩惠;罗永晋;游钰锋;薛珲;钱庆荣;陈庆华

作者机构：Fujian Key Laboratory of Pollution Control&Resource ReuseFujian Normal UniversityFuzhou 350007FujianChina Fuqing Branch of Fujian Normal UniversityFuqing 350300FujianChina 

基　　金：国家重点研发计划(2019YFC1904500) 国家自然科学基金(21875037) 福建省新世纪人才计划 

出 版 物：《Chinese Journal of Catalysis》 (催化学报（英文）)

年 卷 期：2020年第41卷第12期

页      码：1864-1872页

摘      要：The solubility of ammonium tungstate in a special hydrothermal condition is exploited to synthesize uniform microspheres of Ce-Cu-W-O *** to their W-undoped counterparts,they possess more Ce^3+ and oxygen vacancies,thereby promoting oxygen *** formed rich WO3 surface can effectively provide acid sites,which is helpful for adsorption of vinyl chloride and interrupting the C-Cl *** addition,the presence of WO3 induces the formation of finer CuO nanoparticles with respect to the traditional coprecipitation method,thereby resulting in a better *** from both the enhanced acidity and reducibility,the Ce-Cu-W-O microspheres deliver excellent low-temperature vinyl chloride oxidation activity(a reaction rate of 2.01×10^-7 mol/(gcat·s)at 250℃)and high HCl ***,subtle deactivation occurs after the three cycling activity tests,and a stable vinyl chloride conversion as well as mineralization are observed during the 72-h durability test at 300℃,which demonstrates good thermal *** strategy can provide new insights into the design and synthesis of metal oxides for catalytic oxidation of chlorinated volatile organic compounds.

主 题 词：Catalytic vinyl chloride oxidation Ce-Cu-W-O microspheres Solubility of ammonium tungstate Rich surface WO3 Fine CuO nanoparticles 

学科分类：083002[083002] 0830[工学-生物工程类] 081705[081705] 08[工学] 0817[工学-轻工类] 080502[080502] 0805[工学-能源动力学] 

核心收录：

D　O　I：10.1016/S1872-2067(20)63653-1

馆 藏 号：203923083...