Citation: Lihua Yang, Tianqu He, Chujun Lai, Ping Chen, Zhaoyin Hou. Selective oxidation of glycerol with oxygen in base-free solution over N-doped-carbon-supported Sb@PtSb₂ hybrid[J]. Chinese Journal of Catalysis, ;2020, 41(3): 494-502. doi: S1872-2067(19)63476-5 shu

Selective oxidation of glycerol with oxygen in base-free solution over N-doped-carbon-supported Sb@PtSb₂ hybrid

Lihua Yang ^a, ,
Tianqu He ^a ,
Chujun Lai ^a ,
Ping Chen ^a ,
Zhaoyin Hou ^a,b

a Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Department of Chemistry, Zhejiang University, Hangzhou 310028, Zhejiang, China;
b Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou 310028, Zhejiang, China

Received Date: 4 July 2019
Revised Date: 6 August 2019

Fund Project: This work was financially supported by the National Natural Science Foundation of China (21773206 and 21473155) and Natural Science Foundation of Zhejiang Province (L12B03001).

Selective oxidation of glycerol with molecular oxygen in base-free aqueous solutions has become a hot topic, as the rapidly increasing production of biodiesel is creating a surplus of glycerol. In this work, an N-doped-carbon-supported core-shell structured Sb@PtSb₂ hybrid catalyst was prepared via a facile synthesis route, in which a mixture of glucose, melamine, and SbCl₃ (Sb-NC) was pyrolyzed, then impregnated with Pt by immersion in an aqueous solution of H₂PtCl₆, and further treated in hydrogen flow. Characterization of the catalyst products indicated that introducing SbCl₃ can increase the surface area of the binary glucose + melamine pyrolyzed support (NC), and Sb@PtSb₂ hybrids could be formed on the surface of an Sb-NC support during hydrogen treatment at 700℃. It was found that the Sb@PtSb₂/NC catalyst was more active for the selective oxidation of glycerol in a base-free aqueous solution than Sb-free NC-supported Pt (Pt/NC). Further characterization also indicated that the promising performance of Sb@PtSb₂/NC might be attributed to its enhanced oxygen activation.
- Glycerol,
- Oxidation,
- Base-free solution,
- Sb@PtSb₂,
- Alloy
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Selective oxidation of glycerol with oxygen in base-free solution over N-doped-carbon-supported Sb@PtSb2 hybrid

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Selective oxidation of glycerol with oxygen in base-free solution over N-doped-carbon-supported Sb@PtSb₂ hybrid