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Highly effective CuO/Fe(OH)(x) catalysts for selective oxidation of CO in H-2-rich stream
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
2011-06-09
DOI10.1016/j.apcatb.2011.03.040
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
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
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.
语种英语
WOS记录号WOS:000291907400012
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/142682
专题中国科学院大连化学物理研究所
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
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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.
APA Qiao, Botao,Wang, Aiqin,Lin, Jian,Li, Lin,Su, Dangsheng,&Zhang, Tao.(2011).Highly effective CuO/Fe(OH)(x) catalysts for selective oxidation of CO in H-2-rich stream.APPLIED CATALYSIS B-ENVIRONMENTAL,105(1-2),103-110.
MLA Qiao, Botao,et al."Highly effective CuO/Fe(OH)(x) catalysts for selective oxidation of CO in H-2-rich stream".APPLIED CATALYSIS B-ENVIRONMENTAL 105.1-2(2011):103-110.
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