Versatile application of wet-oxidation for ambient CO abatement over Fe(OH)_x supported subnanometer platinum group metal catalysts

作     者：Hongling Guan Yang Chen Chongyan Ruan Jian Lin Yang Su Xiaodong Wang Lingbo Qu 关红玲;陈洋;阮崇焱;林坚;苏杨;王晓东;屈凌波

作者机构：School of Chemical EngineeringZhengzhou UniversityZhengzhou 450001HenanChina CAS Key Laboratory of Science and Technology on Applied CatalysisDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina College of ChemistryZhengzhou UniversityZhengzhou 450001HenanChina 

基　　金：supported by the National Natural Science Foundation of China(21576251,21676269,21808212,21878283) the Youth Innovation Promotion Association CAS(2017223) the “Strategic Priority Research Program” of the Chinese Academy of Sciences(XDB17020100) National Key Projects for Fundamental Research and Development of China(2016YFA0202801) China Postdoctoral Science Foundation(2019M652578) the Postdoctoral Sponsorship in Henan Province(1902015) Science and Technology Program of Henan Province(192102210034) Zhongyuan Postdoctoral Program for Innovation Talents~~ 

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

年 卷 期：2020年第41卷第4期

页      码：613-621页

摘      要：The efficient and stable abatement of CO pollutant under ambient conditions is of great significance;however,it remains a formidable ***,we report the versatile application of wet oxidation over Fe(OH)x supported subnanometer Pt group metal(PGM)catalysts for the complete removal of CO under ambient temperature and humidity ***,the 1.8 wt%Rh/Fe(OH)x catalyst exhibited better durability during a^1400 min run for wet oxidation than for dry CO *** characterization results including HR-TEM,H2-TPR,and in-situ DRIFTS suggested that Fe(OH)x,with good reducibility,promoted by the subnanometer Rh clusters,provided sites for the adsorption and reaction of O2 and H2 O to form OH ***,these OH species reacted with the adsorbed CO on Rh sites with a considerably lower activation energy(9 kJ mol^-1)than that of dissociated 0 species(22 kJ mol^-1),thus rationalizing the outstanding performance of Rh/Fe(OH)x for wet *** experiments with other PGMs revealed a good generality for the application of wet oxidation in the efficient abatement of CO under humid conditions with Fe(OH)x as the support.

主 题 词：Platinum group metals CO Oxidation Ambient condition Fe(OH)x Subnanometer clusters 

学科分类：081704[081704] 07[理学] 0817[工学-轻工类] 070304[070304] 08[工学] 0703[理学-化学类] 

核心收录：

D　O　I：10.1016/S1872-2067(19)63489-3

馆 藏 号：203878748...