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题名: Highly effective CuO/Fe(OH)(x) catalysts for selective oxidation of CO in H-2-rich stream
作者: Qiao, Botao1;  Wang, Aiqin1;  Lin, Jian1;  Li, Lin1;  Su, Dangsheng2;  Zhang, Tao1
关键词: CuO ;  Fe(OH)(x) ;  CuO-Fe2O3 ;  CO oxidation ;  PROX ;  Hydrogen purification
刊名: APPLIED CATALYSIS B-ENVIRONMENTAL
发表日期: 2011-06-09
DOI: 10.1016/j.apcatb.2011.03.040
卷: 105, 期:1-2, 页:103-110
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Engineering, Environmental ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: Ferric hydroxide supported copper oxide (CuO/Fe(OH)(x)) catalysts were prepared with a simple coprecipitation method and used for selective oxidation of CO in H-2-rich gas. The effect of calcination temperatures and Cu loadings on the activity as well as the durability of the catalyst was investigated. When the calcination temperature was 200 degrees C and the Cu loading was ranging from 7.2 to 17.3 wt%, the catalyst gave the best performance with total conversion of CO achievable in a wide temperature window from 110 degrees C to 150 degrees C. To reveal the reason for the high activity of the catalysts, a variety of characterization techniques were employed. The results of XRD and TG-DTA indicated that the catalysts were amorphous even after being calcined at 400 degrees C, which gave rise to large surface areas. HRTEM and XPS examinations indicated that the surface copper species were Cu2O with particle size of smaller than 5 nm. In situ DRIFT and FT-IR results showed that the reduction of Cu2+ in the composite occurred even below room temperature when exposed to CO. The significant reducibility might contribute to the high activity of the catalysts. (C) 2011 Elsevier B.V. All rights reserved.
关键词[WOS]: CARBON-MONOXIDE OXIDATION ;  SUPPORTED GOLD CATALYSTS ;  PREFERENTIAL OXIDATION ;  CUO-CEO2 CATALYSTS ;  OXIDE CATALYSTS ;  EXCESS HYDROGEN ;  AU CATALYSTS ;  TEMPERATURE ;  COPPER ;  H-2
语种: 英语
WOS记录号: WOS:000291907400012
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142682
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Max Planck Gesell, Fritz Haber Inst, D-14195 Berlin, Germany

Recommended Citation:
Qiao, Botao,Wang, Aiqin,Lin, Jian,et al. Highly effective CuO/Fe(OH)(x) catalysts for selective oxidation of CO in H-2-rich stream[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2011,105(1-2):103-110.
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