文献类型：期刊文章

作　　者：赵欣[1] 黄垒[1] 李红蕊[1] 扈航[1] 韩瑾[1] 施利毅[2] 张登松[1]

机构地区：[1]上海大学纳米科学与技术研究中心,上海200444 [2]上海大学化学系,上海200444

出　　处：《Chinese Journal of Catalysis》

基　　金：supported by the National Natural Science Foundation of China (21303099);the National Basic Research Program of China(973 Program,2014CB660803);the Shanghai Municipal Education Commission(14ZZ097, B.3704713001);the Research Fund for Innovation Program of Shanghai University (K.10040713003)~~

年　　份：2015

卷　　号：36

期　　号：11

起止页码：1886-1899

语　　种：中文

收录情况：AJ、BDHX、BDHX2014、CAS、CSA、CSA-PROQEUST、CSCD、CSCD2015_2016、EI(收录号：20154701590234)、JST、RSC、SCI(收录号：WOS:000364612100011)、SCI-EXPANDED(收录号：WOS:000364612100011)、SCIE、SCOPUS、WOS、ZGKJHX、核心刊

摘　　要：Different transition metals were used to modify V2O5-based catalysts （M-V, M = Cu, Fe, Mn, Co） on TiO2 via impregnation, for the selective reduction of NO with NH3. The introduced metals induced high dispersion in the vanadium species and the formation of vanadates on the TiO2 support, and increased the amount of surface acid sites and the strength of these acids. The strong acid sites might be responsible for the high N2 selectivity at higher temperatures. Among these catalysts, Cu-V/TiO2 showed the highest activity and N2 selectivity at 225-375 ~C. The results of X-ray photo- electron spectroscopy, NH3-temperature-programmed desorption, and in-situ diffuse reflectance infrared Fourier transform spectroscopy suggested that the improved performance was probably due to more active surface oxygen species and increased strong surface acid sites. The outstanding activity, stability, and SO2/H2O durability of Cu-V/TiO2 make it a candidate to be a NOx removal catalyst for stationary flue gas.

关 键 词：deNOx Selective catalytic reduction Vanadate Transition metal  

分 类 号：O643.36] X701[化学类]