崔梅生;于瀛;侯永可;赵娜;龙志奇;施用晞;

• 1:北京有色金属研究总院有研稀土新材料股份有限公司
• 2:北京化工大学理学院

摘要(Abstract)：

采用化学湿法共沉淀制备了Cu和不同稀土(RE=La,Ce,Nd,Y)改性的甲烷分解制氢Ni-Al催化剂,并对催化剂进行了BET,XRD,TPR,SEM,TEM等技术表征和催化制氢性能评价。研究结果表明,稀土是比铜更理想的改性剂,稀土改性对催化剂具有良好热稳定作用,并提高催化制氢高温活性,La改性效果最佳;稀土改性催化剂具有较高的制氢稳定性能,700℃下连续制氢12h后未出现失活。稀土改性可促进纳米碳管形成,大幅改善纳米碳形貌,并对固态碳有较强的抑制作用。

关键词(KeyWords)： 稀土改性;催化剂;制氢;甲烷分解

Abstract:

Keywords:

基金项目(Foundation): 国家十一五“863”(2006AA06Z347)项目资助

作者(Authors): 崔梅生;于瀛;侯永可;赵娜;龙志奇;施用晞;

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