尖晶石CuM2O4(M=Al、Fe、Cr)催化甲醇重整反应的特性

李光俊 郗宏娟 张素红 谷传涛 庆绍军 侯晓宁 高志贤

引用本文: 李光俊, 郗宏娟, 张素红, 谷传涛, 庆绍军, 侯晓宁, 高志贤. 尖晶石CuM2O4(M=Al、Fe、Cr)催化甲醇重整反应的特性[J]. 燃料化学学报, 2012, 40(12): 1466-1471. shu
Citation:  LI Guang-jun, XI Hong-juan, ZHANG Su-hong, GU Chuan-tao, QIN Shao-jun, HOU Xiao-ning, GAO Zhi-xian. Catalytic characteristics of spinel CuM2O4 (M=Al, Fe, Cr) for the steam reforming of methanol[J]. Journal of Fuel Chemistry and Technology, 2012, 40(12): 1466-1471. shu

尖晶石CuM2O4(M=Al、Fe、Cr)催化甲醇重整反应的特性

    通讯作者: 高志贤, Tel: +86 0351 4067440, E-mail: gaozx@sxicc.ac.cn。
摘要: 采用柠檬酸络合法,经900 ℃热处理制备了CuAl2O4、CuFe2O4和CuCr2O4三种尖晶石,并进行了甲醇重整性能评价。结合XRD、H2-TPR、SEM和BET等表征,研究了铜基尖晶石的催化特性。结果表明,三种铜基尖晶石的形貌和大小有极大差异,表现出不同的催化性能,CuAl2O4尖晶石获得最优的稳定性和最低的CO选择性,CuFe2O4尖晶石上CO选择性最高且稳定性差,CuCr2O4尖晶石上石墨碳沉积最严重。根据长时间评价结果和表征数据发现,在反应气氛中铜基尖晶石不稳定,通过释放活性铜而起催化作用;同时铜的烧结长大与积炭现象共同影响催化性能。

English

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  • 收稿日期:  2012-04-25
  • 网络出版日期:  2012-06-29
通讯作者: 陈斌, bchen63@163.com
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