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题名: FT-IR EMISSION SPECTROSCOPIC STUDIES OF METAL OXIDE CATALYSYTS I. EXPERIMENTAL RESPECTS AND THE REDUCTION-REOXIDATION OF MOLYBDENUM TRIOXIDE
作者: Li Can1;  Wang Kaili1;  Xin Qin1;  Guo Xiexian1
关键词: FT-IR Emission spectroscopy ;  Molybdenum Oxide ;  Oxidation-Reduction ;  Infrared Emission Spectroscopy ;  Catalyst Characterization
刊名: ACTA PHYSICO-CHIMICA SINICA
发表日期: 1992
DOI: 10.3866/PKU.WHXB19920113
卷: 8, 期:1, 页:64-69
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: Fourier transform infrared(FT-IR) emission spectroscopic technique has been established shed to study metal oxide catalysts. An in situ infrared emission cell was specially de signed to treat sample in vacuo or in various gases at a wide temperature range(r. t.-700 degrees C). Infrared emission spectrum of MoO3 was presented and the results demonstrated that FT-IR emission spectroscopy is a sensitive method to detect vibrational information of metal oxide catalysts The experimental conditions including sample preparation, effects of temperature and sample thickness on the infrared emission spectrum were detailed. It was found that the spectrum was severely disordered when the sample thickness of MoO3 was beyond 1.00mg.cm(2) and the more intensive emission bands were detected at higher temperatures infrared emission spectra recorded in the course of H-2 reduction of MoO3 showed that surface linkage Mo-O-Mo species giving the band at 880 cm(-1) is more easily reduced comparing to the terminal Mo = O species giving the band at 990 cm(-1), vice versa, the Mo = O species are preferentially formed than the Mo-O-Mo species during the reoxidation of the partially reduced MoO8.
语种: 英语
WOS记录号: WOS:000207574100013
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142333
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.Acad Sinica, Dalian Inst Chem Phys, Natl Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Li Can,Wang Kaili,Xin Qin,et al. FT-IR EMISSION SPECTROSCOPIC STUDIES OF METAL OXIDE CATALYSYTS I. EXPERIMENTAL RESPECTS AND THE REDUCTION-REOXIDATION OF MOLYBDENUM TRIOXIDE[J]. ACTA PHYSICO-CHIMICA SINICA,1992,8(1):64-69.
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