Alkali-resistant NO_(x) reduction over FeVO_(4)/TiO_(2)catalysts via regulating the electron transfer between Fe and V

作     者：Yunang Dong Penglu Wang Xiangyu Liu Jiang Deng Aling Chen Lupeng Han Dengsong Zhang Yunang Dong;Penglu Wang;Xiangyu Liu;Jiang Deng;Aling Chen;Lupeng Han;Dengsong Zhang

作者机构：International Joint Laboratory of Catalytic ChemistryState Key Laboratory of Advanced Special SteelCollege of SciencesShanghai UniversityShanghai 200444China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2024年第35卷第2期

页      面：489-495页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 

基　　金：the National Natural Science Foundation of China(No.22125604) Shanghai Rising-Star Program(No.22QA1403700) Chenguang Program supported by Shanghai Education Development Foundation and Shanghai Municipal Education Commission(No.22Z00354) 

主　　题：Air pollution control NO_(X)reduction Selective catalytic reduction Alkali metals Electron transfer 

摘      要：The presence of alkali metals in exhaust gas from stationary resources causes a grand challenge for the practical application of selective catalytic reduction(SCR)of NO_(x) with NH_(3).Here,alkali-resistant NO_(x) reduction has been successfully implemented via tailoring the electron transfer over Fe and V species on FeVO_(4)/TiO_(2)*** strong interaction between Fe and V induced electron transfer from V to Fe and strengthened the adsorption and activation of NH_(3)and NO over active VO_(x) *** the presence of K_(2)O,the strong electron withdrawing effect of Fe offset the electron donating effect of K on the VO_(x) species,thus protecting the active species VO_(x) to maintain the NO_(x) reduction *** enhanced adsorption and activation of NH_(3) allowed SCR reaction to proceed via E-R mechanism even after K_(2)O *** work elucidated the electronic effects on the alkali metals resistance of traditional ferric vanadate SCR catalysts and provided a promising strategy to design SCR catalysts with superior alkali resistance.