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Your search keyword '"Chen, Shougang"' showing total 16 results
Start Over Author "Chen, Shougang" Journal applied surface science
16 results on '"Chen, Shougang"'

14. Anodic-hydrothermal preparation of prism-shaped CaTiO3 structure on titanium surface

Author

Zhang, Fen, Chen, Shougang, Lin, Chan, and Yin, Yansheng

Subjects
*ANODIC oxidation of metals, *TITANIUM dioxide, *CALCIUM, *SURFACES (Technology), *PEROVSKITE, *SUBSTRATES (Materials science), *ELECTROCHEMISTRY
Abstract

Abstract: The prism-shaped perovskite structure of CaTiO3 on titanium surface was fabricated by an anodic-hydrothermal method. Firstly, the TiO2 film was formed on Ti substrate by electrochemical anodization. Secondly, the anodized TiO2/Ti substrate was used as a template for the hydrothermal synthesis of CaTiO3 coating. The samples were characterized with X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy and energy-dispersive X-ray spectrum. The experimental results show that anodic TiO2 substrate and alkali environment are key factors for the formation of prism-shaped CaTiO3, and the NaOH concentrations plays an important role in determining the size and shape of CaTiO3 structures. Meanwhile, the CaTiO3 surfaces possess the better deposition ability of Ca and P in vitro. [ABSTRACT FROM AUTHOR]

Published
2011
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15. Density functional theory study on the mechanism of CO sensing on Cu2O (111) surface: Influence of the pre-adsorbed oxygen atom.

Author

Shen, Yaoyao, Tian, Feng Hui, Chen, Shougang, Ma, Zhenqing, Zhao, Linghuan, and Jia, Xiangfeng

Subjects
*DENSITY functional theory, *CARBON oxides, *COPPER oxide, *METALLIC surfaces, *MECHANICAL properties of metals, *OXYGEN atom transfer reactions, *SENSITIVITY analysis
Abstract

Highlights: [•] The sensitivity of perfect and O pre-adsorbed Cu2O (111) to CO gas are revealed. [•] Both of the two kinds of surfaces have considerable sensitivity to CO gas. [•] The O pre-adsorbed surface is more sensitive to CO than the perfect surface. [•] Cu2O would be a good candidate for the detection of CO gas. [Copyright &y& Elsevier]

Published
2014
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16. DFT study of CO sensing mechanism on hexagonal WO3 (001) surface: The role of oxygen vacancy.

Author

Tian, FengHui, Zhao, Linghuan, Xue, Xu-Yan, Shen, Yaoyao, Jia, Xiangfeng, Chen, Shougang, and Wang, Zonghua

Subjects
*DENSITY functional theory, *CARBON monoxide detectors, *TUNGSTEN trioxide, *METALLIC surfaces, *CRYSTAL defects
Abstract

Highlights: [•] The oxygen deficient h-WO3 (001) surfaces can be used to detect CO gas. [•] Oxygen vacancies exert negative effects on the sensitivity of the material. [•] The effect degree of oxygen vacancies is dependent on the defect density. [ABSTRACT FROM AUTHOR]

Published
2014
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