摘要
本文综述了近年来关于助剂改性对贵金属催化剂活性中心的构建及其一氧化碳PROX反应催化性能影响的最新研究进展,详尽地比较了碱(土)金属、过渡金属以及稀土氧化物对Au催化剂和Pt催化剂的影响。此外,还对CO氧化反应的机理、负载型贵金属催化剂在不同反应过程和存储条件下的失活原因进行了讨论。最后,提出了一些尚未解决或者仍需进一步研究的问题,并展望了CO选择氧化催化剂的研究和发展方向。
The current research progresses about influences of promoters on constructing active centers on noble metal catalysts and their catalytic performances for CO preferential oxidation（PROX） in H2-rich stream have been reviewed.Effects of alkali（alkaline earth） metals,transitional-metals and rare earth oxides on the catalytic performance of Au catalysts and Pt group catalysts for PROX reaction are compared in detail.In addition,the reaction mechanism for CO preferential oxidation,the reasons for deactivation of supported noble metal catalysts in different storage and reaction conditions have been summarized.Finally,some problems unsolved and need to be further studied are advanced.The prospects for development of catalysts for PROX reaction are also discussed.
出处
《化学进展》
SCIE
CAS
CSCD
北大核心
2010年第8期1538-1549,共12页
Progress in Chemistry
基金
国家重点基础研究发展计划(973)项目(No.2007CB613305
2009CB22003)资助
关键词
贵金属
CO选择氧化
催化剂失活
反应机理
助剂
noble metals
CO preferential oxidation
deactivation
reaction mechanism
promoters
