Shigang Zhang
Dalian Institute of Chemical Physics
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Publication
Featured researches published by Shigang Zhang.
Journal of Natural Gas Chemistry | 2006
Ligang Wang; Deren Fang; Xingyun Huang; Shigang Zhang; Yue Qi; Zhongmin Liu
Abstract A series of CuO-ZnO catalysts (with different Cu/Zn molar ratios) were prepared, and evaluated under the reaction conditions of syngas-to-dimethyl ether (DME) with three sorts of feed gas and different space velocity. The catalysts were characterized by X-ray diffraction (XRD) and temperature-programmed reduction (TPR). The experiment results showed that the reaction conditions of syngas-to-DME process greatly affected the methanol synthesis and WGS reaction. The influence caused by Cu/Zn molar ratio was quite different on the two reactions; increasing of percentage of CO 2 in feed gas was unfavorable for catalyst activity, and also inhibited both reactions; enhancement of reaction space velocity heavily influenced the performance of the catalyst, and the benefits were relatively less for methanol synthesis than for the WGS reaction.
Materials Research Innovations | 2016
Xinyan Zhang; Y. Y. Guan; Y. Xiong; Y. Zhao; Shigang Zhang
The influence of cobalt loading (10–50 wt-%Co), cobalt precursor, and solvent on the physico-chemical and catalytic properties of mesoporous Co/SBA-15 catalysts for the N2O decomposition reaction has been investigated. Catalysts were characterised by N2 adsorption, X-ray diffraction (XRD), transmission electron microscopy (TEM), and temperature-programmed reduction (TPR). For Co/SBA-15 catalysts prepared from Co(II) nitrate, the dispersion decreased and the extent of cobalt reduction increased with cobalt loading. A maximum N2O conversion was found for the sample with ca. 30 wt-% Co loading. At similar cobalt loading (ca. 30 wt-%), a low dispersion and a stronger cobalt–support interaction leading to the formation of low reducible cobalt silicates was observed for Co/SBA-15 samples prepared from acetate precursors as compared to that derived from cobalt(II) nitrate, as evidenced by TPR. The former catalysts showed a low N2O decomposition activity. Moreover, at every Co loadings, the catalysts prepared in water exhibited much higher activities than those prepared in ethanol solvent, which could be related to the low reducibility of cobalt species in the latter catalysts. Finally, at comparable Co loading Co/SBA-15 catalysts (nitrate precursor) were more active than a Co/SiO2 and Co/Al2O3 sample.
Materials Letters | 2009
Shigang Zhang; Lei Xu; Hongchao Liu; Yingfeng Zhao; Ying Zhang; Quanyi Wang; Zhengxi Yu; Zhongmin Liu
Microporous and Mesoporous Materials | 2008
Yinfeng Zhao; Yue Qi; Yingxu Wei; Yangyang Zhang; Shigang Zhang; Zhongmin Liu
Materials Letters | 2008
Yinfeng Zhao; Yue Qi; Yangyang Zhang; Shigang Zhang; Zhongmin Liu
Microporous and Mesoporous Materials | 2006
Ziyu Liu; Yingxu Wei; Yue Qi; Shigang Zhang; Ying Zhang; Zhongmin Liu
Archive | 2010
Shigang Zhang; Zhongmin Liu; Lei Xu; Hongchao Liu
Journal of Chromatography A | 2006
Zhiping Zhang; Shigang Zhang; Jiping Chen; Zhongmin Liu; Xinmiao Liang
Archive | 2010
Yangyang Zhang; Zhongmin Liu; Fan Zhou; Yue Qi; Ying Zhang; Shigang Zhang
Archive | 2010
Shigang Zhang; Yinfeng Zhao; Zhongmin Liu; Yue Qi