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题名: Photocatalytic H-2 production on TiO2 with tuned phase structure via controlling the phase transformation
作者: Ma, Yi1, 2, 3;  Xu, Qian1, 2;  Chong, Ruifeng1, 2, 3;  Li, Can1, 2
刊名: JOURNAL OF MATERIALS RESEARCH
发表日期: 2013-02-01
DOI: 10.1557/jmr.2012.274
卷: 28, 期:3, 页:394-399
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Materials Science, Multidisciplinary
研究领域[WOS]: Materials Science
英文摘要: A series of TiO2 samples were prepared from the precursor P25 using impregnation method followed by a calcination. The phase compositions of the samples were controlled by addition of various additives, including NaNO3, NaHCO3, Na2SO4, Na3PO4, Na2SiO3, and Na2MoO4. X-ray diffraction patterns demonstrate that the phase transformation from anatase to rutile can be suppressed to a different extent by these additives. Photocatalytic H-2 production reactions were performed in methanol aqueous solution. The catalysts, with the addition of NaNO3, NaHCO3, and Na2SO4, show a great improvement in the H-2 production activity, while others show a negative effect. This indicates that both the phase structure and the properties of the additives are important for the photocatalytic activity. Infrared spectra of pyridine adsorption on the catalysts reveal that the decreased acidity of the samples may be responsible for the suppressed CO production in the photocatalytic methanol reforming.
关键词[WOS]: CATALYTIC DECOMPOSITION ;  AQUEOUS SUSPENSION ;  DEGRADATION ;  SURFACE ;  ACID ;  NANOTUBES ;  DIOXIDE ;  PH ;  UV
语种: 英语
WOS记录号: WOS:000314421700016
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/137825
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.Dalian Natl Lab Clean Energy, Div Solar Energy, Dalian 116023, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

Recommended Citation:
Ma, Yi,Xu, Qian,Chong, Ruifeng,et al. Photocatalytic H-2 production on TiO2 with tuned phase structure via controlling the phase transformation[J]. JOURNAL OF MATERIALS RESEARCH,2013,28(3):394-399.
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