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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 shu

Reduction Effects of the Passivated Mo₂N Studied by XPS and H₂ Chemisorption

1.
State Key Laboratory of Catalysis,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023

Received Date: 2 May 1995
Available Online: 15 August 1995

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.
- Mo₂N,
- X-ray photoelectron spectroscopy,
- Hydrogen chemisorption
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Reduction Effects of the Passivated Mo2N Studied by XPS and H2 Chemisorption

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通讯作者: 陈斌, bchen63@163.com

Reduction Effects of the Passivated Mo₂N Studied by XPS and H₂ Chemisorption