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Your search keyword '"Yushan Hou"' showing total 3 results
Start Over Author "Yushan Hou" Publisher elsevier bv
3 results on '"Yushan Hou"'

1. Adsorption performance and mechanism of indole-3-carbinol from cruciferous vegetables based on AuNPs doped Cu-MOFs with scaly two-dimensional structure

Author

Jiatong Han, Yi Ping, Qiyue Tan, Chenyu Qi, Kexin Yang, Yushan Hou, Yaowei Zhang, Lingyun Li, Ge Chen, Guangyang Liu, Xiaodong Huang, and Donghui Xu

Subjects
Materials Chemistry, Physical and Theoretical Chemistry, Condensed Matter Physics, Spectroscopy, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials
Published
2023

3. Quantitative characterization of Cr-adsorption on CeO2, pure and doped BaCeO3 and its impact on the electrochemical performance of Ce containing complex oxides

Author

Elena Yu. Konysheva, Jianfang Wu, and Yushan Hou

Subjects
Cerium oxide, Materials science, Renewable Energy, Sustainability and the Environment, Doping, Inorganic chemistry, Analytical chemistry, Energy Engineering and Power Technology, chemistry.chemical_element, 02 engineering and technology, Atmospheric temperature range, 010402 general chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 01 natural sciences, 0104 chemical sciences, Dielectric spectroscopy, Chromium, Fuel Technology, Adsorption, chemistry, X-ray photoelectron spectroscopy, Surface layer, 0210 nano-technology
Abstract

Quantitative analysis of Cr-adsorption from a gas phase on CeO 2 , pure and doped BaCeO 3 was performed in combination with surface techniques and electrochemical impedance spectroscopy. The Cr-adsorption on BaCeO 3 is 3 times higher than on CeO 2 and it increases by 12–25% on In doping in Ba(Ce 1−x In x )O 3 (x = 0.1–0.3) in the temperature range of 600–700 °C. These perovskites adsorb chromium with the formation of a multi-phase surface layer containing BaCr 6+ O 4 and cerium oxide. Coexistence of small fractions of Cr 3+ and Cr 5+ cations in the surface layer was identified by X-ray photoelectron spectroscopy. The thickness of the surface layer and its morphology vary with temperature, affecting the conductivity of Ce containing perovskites below 700 °C. BaCrO 4 exhibits under air noticeably larger anisotropic thermal expansion than BaCeO 3 . The results indicate that high tolerance to Cr-gaseous species should be considered as an important criterion for further development of materials for proton-conducting SOFCs.

Published
2016

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