Changqing Guo
Chinese Academy of Sciences
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Featured researches published by Changqing Guo.
Korean Journal of Chemical Engineering | 2017
Yaping Xue; Changfeng Yan; Xiaoyong Zhao; Shilin Huang; Changqing Guo
Hydrogen production from steam reforming of acetic acid was investigated over Ni/La2O3-ZrO2 catalyst. A series of Ni/La2O3-ZrO2 catalysts were synthesized by sol-gel method coupled with wet impregnation, which was characterized by XRD, BET, TEM, EDS, TG, SEM and TPR. Catalytic activity of Ni/La2O3-ZrO2 was evaluated by steam reforming of acetic acid at the temperature range of 550-750 °C. The tetragonal phase La0.1Zr0.9O1.95 is formed through the doping of La2O3 into the ZrO2 lattice and nickel species are highly dispersed on the support with high specific surface area. H2 yield and CO2 yield of Ni/La2O3-ZrO2 catalyst with 15%wt Ni reaches 89.27% and 80.41% at 600 °C, respectively, which is attributed to high BET surface area and sufficient Ni active sites in strong interaction with the support. 15%wt Ni supported on La2O3-ZrO2 catalyst maintains relatively stable catalytic activities for a period of 20 h.
International Journal of Photoenergy | 2015
Ying Huang; Changfeng Yan; Changqing Guo; Shilin Huang
A series of new two semiconductor catalysts, Co3O4/CeO2, were prepared by glycine-nitrate combustion method for photocatalytic reduction of carbon dioxide to produce methanol and ethanol under visible light ( nm) irradiation. The catalysts were characterized by BET, UV-vis spectra, XRD, SEM, PL, and XPS and the results indicated that the catalyst with 5 wt.% of Co3O4 has the highest yield among all kinds of tests with the methanol yield of 1.52 μmol·g−1·h−1 and the ethanol yield of 4.75 μmol·g−1·h−1, which are about 2.34 and 1.71 times as large as those of CeO2. However, methanol and ethanol can hardly be detected for Co3O4 under the same condition because of its too narrow band gap. The improvement of the photoreduction activity of Co3O4 doped CeO2 was caused by the separation of electron-hole pairs of Co3O4/CeO2 and charge transfer between Co3O4 and CeO2, mimicking the Z-scheme in photosynthesis.
International Journal of Hydrogen Energy | 2012
Xiao-xiao Zheng; Changfeng Yan; Rongrong Hu; Juan Li; Hang Hai; Weimin Luo; Changqing Guo; Wenbo Li; Zhou-yu Zhou
International Journal of Hydrogen Energy | 2015
Fengman Sun; Changfeng Yan; Zhida Wang; Changqing Guo; Shilin Huang
International Journal of Hydrogen Energy | 2014
Changfeng Yan; Hao Chen; Rongrong Hu; Shilin Huang; Weimin Luo; Changqing Guo; Mingyu Li; Wenbo Li
International Journal of Hydrogen Energy | 2014
Changfeng Yan; Wen Ye; Changqing Guo; Shilin Huang; Wenbo Li; Weimin Luo
International Journal of Hydrogen Energy | 2017
Ying Huang; Changfeng Yan; Changqing Guo; Zhuoxin Lu; Yan Shi; Zhida Wang
International Journal of Hydrogen Energy | 2014
Changfeng Yan; Hang Hai; Changqing Guo; Wenbo Li; Shilin Huang; Hao Chen
International Journal of Hydrogen Energy | 2016
Ying Huang; Changfeng Yan; Changqing Guo; Yan Shi
Archive | 2012
Changfeng Yan; Changqing Guo; Weimin Luo; Wenbo Li