引用本文:
李新生, 盛世善, 陈恒荣, 纪纯新, 张耀军, 辛勤. 用XPS和H2化学吸附研究钝化Mo2N的还原作用[J]. 物理化学学报,
1995, 11(08): 678-680.
doi:
10.3866/PKU.WHXB19950802
Citation: Li Xin-Sheng, Sheng Shi-Shan, Chen Heng-Rong, Ji Chun-Xin, Zhang Yao-Jun, Xin Qin. Reduction Effects of the Passivated Mo2N Studied by XPS and H2 Chemisorption[J]. Acta Physico-Chimica Sinica, 1995, 11(08): 678-680. doi: 10.3866/PKU.WHXB19950802
Citation: Li Xin-Sheng, Sheng Shi-Shan, Chen Heng-Rong, Ji Chun-Xin, Zhang Yao-Jun, Xin Qin. Reduction Effects of the Passivated Mo2N Studied by XPS and H2 Chemisorption[J]. Acta Physico-Chimica Sinica, 1995, 11(08): 678-680. doi: 10.3866/PKU.WHXB19950802
English
Reduction Effects of the Passivated Mo2N Studied by XPS and H2 Chemisorption
Abstract:
XPS has been applied to study the reduction influence of the passivated Mo2N sample on H2 chemisorption at room temperature. It is found that most of the Mo6+ species was reduced to low valence molybdenum species (Moδ+:δ≦4) when reduction temperature was raised up to 673K, meanwhile sharp increases of both the irreversible and reversible hydrogen uptakes were measured. The irreversible amount increased to a larger extent. Accordingly, the active sites towards hydrogen adsorption are tentatively proposed to the low valence molybdenum species with nitrogen deficient.
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Key words:
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Mo2N
- / X-ray photoelectron spectroscopy
- / Hydrogen chemisorption
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