Author: "Gao, Xiaoqing" / Journal: applied catalysis b: environmental / Publisher: elsevier b.v. / Topic: glycerin - Searchworks@Jio Institute Digital Library Search Results

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Start Over Author "Gao, Xiaoqing" Topic glycerin Journal applied catalysis b: environmental Publisher elsevier b.v.

Author: Zhu, Shanhui, Gao, Xiaoqing, Zhu, Yulei, Cui, Jinglei, Zheng, Hongyan, and Li, Yongwang
Subjects: *SILICON oxide, *HYDROGENOLYSIS, *PROPYLENE glycols, *GLYCERIN, *ZIRCONIUM oxide, *HYDROGENATION, *DEHYDRATION reactions
Abstract: Highlights: [•] Addition of SiO2 to PtW/Zr greatly enhanced activity and 1,3-propanediol selectivity. [•] 54.3% conversion and 52.0% 1,3-propanediol selectivity were achieved over 5PtW/ZrSi. [•] A model scheme of WO x transformation due to SiO2 doping has been built. [•] Pt and polytungstate have been identified as the dominant active phases. [•] Glycerol hydrogenolysis conforms to the dehydration–hydrogenation mechanism. [Copyright &y& Elsevier]
Published: 2014
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Author: Zhu, Shanhui, Gao, Xiaoqing, Zhu, Yulei, Zhu, Yifeng, Xiang, Xiaomin, Hu, Caixia, and Li, Yongwang
Subjects: *ALKALI metals, *HYDROGENOLYSIS, *GLYCERIN, *PROPYLENE glycols, *ZIRCONIUM oxide
Abstract: Highlights: [•] Alkaline metals Li, K, Rb and Cs were efficient for tune acidity of H4SiW12O40. [•] Li modified Pt–H4SiW12O40/ZrO2 exhibited superior 1,3-propanediol selectivity. [•] 1,3-Propanediol yield was proportional to the concentration of Brønsted acid sites. [•] A mechanistic scheme for glycerol hydrogenolysis to 1,3-propanediol was proposed. [•] A 120h long-term performance for Pt–H4SiW12O40/ZrO2 was achieved. [ABSTRACT FROM AUTHOR]
Published: 2013
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