化工学报2013，Vol.64Issue(1)：297-302,6.DOI:10.3969/j.issn.0438-1157.2013.01.033
介质阻挡放电技术再生Pd/AC催化剂的机理探讨
Regeneration mechanism of Pd/AC catalyst in dielectric barrier discharge plasma
高文立 1王骁 1李中坚 1张兴旺 1余青霓 1雷乐成2
作者信息
- 1. 生物质化工教育部重点实验室(浙江大学),浙江杭州310027
- 2. 中国航天员科研训练中心,北京100094
- 折叠
摘要
Abstract
Regeneration of deactivated Pd/AC catalyst was carried out in a dielectric barrier discharge (DBD) plasma reactor and activities of regenerated catalysts were assessed by catalytic ozonation reactions. The surface morphology, surface area and organic compounds were characterized by SEM, BET and TG respectively. In order to investigate regeneration mechanism of Pd/AC catalyst, concentration of O3 and plasma emission spectra during DBD process were detected. The results showed that regeneration efficiency could be by 95% after 30 min treatment. Nitrobenzene degradation efficiency was 87% using ozonation reaction catalyzed by Pd/AC catalyst regenerated under the optimized condition. The regeneration efficiency with ozone solely was only 25. 6%, indicating that radicals with strong oxidation ability produced in DBD process was main factor for Pd/AC catalyst regeneration.关键词
Pd/AC催化剂/介质阻挡放电/催化剂再生/自由基Key words
Pd/AC catalyst/dielectric barrier discharge/catalyst regeneration/free radicals分类
化学化工引用本文复制引用
高文立,王骁,李中坚,张兴旺,余青霓,雷乐成..介质阻挡放电技术再生Pd/AC催化剂的机理探讨[J].化工学报,2013,64(1):297-302,6.
