华东理工大学学报（自然科学版）2017，Vol.43Issue(1)：8-15,8.DOI:10.14135/j.cnki.1006-3080.2017.01.002
活性焦表面改性及其常温催化氧化NO的性能研究
Surface Modification of Activated Coke for NO Oxidation at Ambient Temperature
摘要
Abstract
Commercial activated coke(AC)was modified with different oxidants and by heat-treatment at different temperatures.The pore structure and the surface chemical properties of the samples were characterized by N2 adsorption-desorption,FT-IR,NH3-TPD,and non-aqueous acid-base titration.The catalytic activity of NO oxidation on the samples at ambient temperature under different relative humidity was investigated.Results showed that both micropore volume and surface basic groups of the oxidized samples were decreased after oxidation modification,which resulted in the decline of NO conversion in the humid gas.The micropore volume and the content of surface basic groups of the heat-treated samples were increased obviously,which improved the resistibility of AC against the humidity during the NO oxidation process.In a relative humidity range of 0~80%,the oxidized samples followed by heat-treatment exhibited higher activity than that of the original AC modified with direct heat-treatment.And increasing the temperature of heat-treatment,the NO oxidation activity of the samples was enhanced in the humid gas (relative humidity 80%).关键词
活性焦/氧化改性/热处理/NO氧化/湿度Key words
activated coke/oxidative modification/heat-treatment/NO oxidation/humidity分类
化学化工引用本文复制引用
李军,殷迪,王际童,乔文明,凌立成..活性焦表面改性及其常温催化氧化NO的性能研究[J].华东理工大学学报（自然科学版）,2017,43(1):8-15,8.基金项目
国家自然科学基金(51302083,51172071,51272077,21506061) （51302083,51172071,51272077,21506061）
