molybdenum dioxide;
XPS;
argon ion bombardment;
reforming of alkanes;
D O I:
10.1007/BF00806906
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
The XPS spectra of bulk MoO2 and MoO3 are reported. Commercial MoO2 reveals the presence of multilayers of MoO3 covering bulk MoO2. Zn situ reduction of bulk MoO3 by H-2 at temperatures equal to 623 K and less than 673 K reduces the superficial layer(s) to mainly MoO2. Such phase is characterised by a certain density of states in terms of the free 4d, 5s electrons localised mainly on the Mo atoms and observed in the valence band energy region at the Fermi-level in the XP spectrum of this system. Catalytic reactions on the MoO2 phase of 2-methylpentane at atmospheric pressure using a mixture of the hydrocarbon (5 Torr) with hydrogen (755 Torr) yield 3-methylpentane and n-hexane as the main products in roughly equal amounts. These results are interpreted in terms of dual sites on the MoO2 surface.
机构:
Fudan Univ, Inst Special Mat & Technol, Shanghai 200433, Peoples R China
Fudan Univ, Dept Chem, Shanghai 200433, Peoples R ChinaFudan Univ, Inst Special Mat & Technol, Shanghai 200433, Peoples R China
Yao, Zhiqiang
Wang, Chenfeng
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机构:
Fudan Univ, Inst Special Mat & Technol, Shanghai 200433, Peoples R China
Fudan Univ, Dept Chem, Shanghai 200433, Peoples R ChinaFudan Univ, Inst Special Mat & Technol, Shanghai 200433, Peoples R China
Wang, Chenfeng
Wang, Zengyao
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机构:
Fudan Univ, Inst Special Mat & Technol, Shanghai 200433, Peoples R China
Fudan Univ, Dept Chem, Shanghai 200433, Peoples R ChinaFudan Univ, Inst Special Mat & Technol, Shanghai 200433, Peoples R China
Wang, Zengyao
Liu, Guanglei
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机构:
Fudan Univ, Inst Special Mat & Technol, Shanghai 200433, Peoples R China
Fudan Univ, Dept Mat Sci, Shanghai 200433, Peoples R ChinaFudan Univ, Inst Special Mat & Technol, Shanghai 200433, Peoples R China
Liu, Guanglei
Bowers, Crystal
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机构:
George Mason Univ, Dept Mech Engn, Fairfax, VA 22030 USAFudan Univ, Inst Special Mat & Technol, Shanghai 200433, Peoples R China
Bowers, Crystal
Dong, Pei
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机构:
George Mason Univ, Dept Mech Engn, Fairfax, VA 22030 USAFudan Univ, Inst Special Mat & Technol, Shanghai 200433, Peoples R China
Dong, Pei
Ye, Mingxin
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机构:
Fudan Univ, Inst Special Mat & Technol, Shanghai 200433, Peoples R ChinaFudan Univ, Inst Special Mat & Technol, Shanghai 200433, Peoples R China
Ye, Mingxin
Shen, Jianfeng
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机构:
Fudan Univ, Inst Special Mat & Technol, Shanghai 200433, Peoples R ChinaFudan Univ, Inst Special Mat & Technol, Shanghai 200433, Peoples R China
机构:
South China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R ChinaSouth China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China
Huang, Minghong
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机构:
Ouyang, Liuzhang
Ye, Jianshan
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机构:
South China Univ Technol, Key Lab Fuel Cell Technol Guangdong Prov, Guangzhou 510641, Guangdong, Peoples R ChinaSouth China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China
Ye, Jianshan
Liu, Jiangwen
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h-index: 0
机构:
South China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R ChinaSouth China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China
Liu, Jiangwen
Yao, Xiangdong
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机构:
Griffith Univ, China Australia Joint Lab Energy & Environm Mat, Sch Biomol & Phys Sci, Nathan, Qld 4111, AustraliaSouth China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China
Yao, Xiangdong
Wang, Hui
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机构:
South China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R ChinaSouth China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China
Wang, Hui
Shao, Huaiyu
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机构:
Univ Macau, IAPME, Macau, Peoples R ChinaSouth China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China
Shao, Huaiyu
Zhu, Min
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机构:
South China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R ChinaSouth China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China