燃料化学学报（中英文）2025，Vol.53Issue(6)：918-926,9.DOI:10.3724/2097-213X.2025.JFCT.0004
钴源对Co/RPSA催化剂催化分解N2O性能的影响
Effect of cobalt source on N2O decomposition performance of Co/RPSA catalysts
摘要
Abstract
Co/RPSA catalysts were prepared by the impregnation method using RPSA molecular sieve as the carrier and nitric cobalt,chloride cobalt,and acetic cobalt as cobalt sources.The catalysts were characterized by XRD,BET,Pyridine-FTIR,NH3-TPD,H2-TPR and XPS.The catalytic performance for N2O decomposition was investigated using a fixed-bed microreactor.The results indicated that cobalt species existed in the form of Co3O4 in the catalysts.The cobalt source influenced the physicochemical properties of the catalysts.Specifically,the Co/RPSA(C)catalyst,using cobalt chloride as the cobalt source,exhibited a higher quantity of surface Co3O4 species,more Co2+active sites,a greater amount of Lewis acid,more adsorbed oxygen,and stronger redox properties,leading to better catalytic activity with a lower N2O decomposition temperature.The temperatures at which 10％,50％and 90％of N2O were decomposed(t10,t50 and t90)were 371,428 and 485 ℃,respectively.In contrast,the Co/RPSA(A)catalyst,using cobalt acetate as the cobalt source,showed poorer catalytic activity and higher N2O decomposition temperatures,with t10,t50 and t90 recorded at 454,531 and 581 ℃,respectively.关键词
钴基催化剂/N2O/催化分解/分子筛Key words
cobalt-based catalysts/N2O/catalytic decomposition/molecular sieve分类
化学化工引用本文复制引用
董浩,赵明新,车嘉,王杰,林世静,张丽芳,迟姚玲,王虹..钴源对Co/RPSA催化剂催化分解N2O性能的影响[J].燃料化学学报（中英文）,2025,53(6):918-926,9.基金项目
The project was supported by National Natural Science Foundation of China(U1662103,2167329),State Key Laboratory of Heavy Oil Processing(WX20230158),Beijing College Students' Innovation and Entrepreneurship Training Program(2023J00027,2023J00054). 国家自然科学基金(U1662103,2167329),重质油国家重点实验室开放基金(WX20230158)和北京市大学生创新创业训练计划(2023J00027,2023J00054)资助 （U1662103,2167329）
