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The Promotional Effect of Sulfates on TiO 2 Supported Pt‐WO x Catalyst for Hydrogenolysis of Glycerol
Author(s) -
Zhou Zhiming,
Jia Hongyan,
Guo Yong,
Wang Yangang,
Liu Xiaohui,
Xia Qineng,
Li Xi,
Wang Yanqin
Publication year - 2021
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.202100863
Subject(s) - hydrogenolysis , catalysis , glycerol , selectivity , chemistry , platinum , inorganic chemistry , leaching (pedology) , doping , sulfate , dispersion (optics) , nuclear chemistry , materials science , organic chemistry , environmental science , physics , optoelectronics , soil science , optics , soil water
Pt‐WO x based catalysts were widely investigated and showed high industrial application potential for glycerol hydrogenolysis. Further improving the catalytic activity and stability of the Pt‐WO x based catalysts is important. Herein, we modified the TiO 2 supported Pt‐WO x catalyst with sulfate doping and employed for the glycerol hydrogenolysis. The introduction of sulfates dramatically promoted the catalytic activity and stability of the Pt/W/Ti catalyst in glycerol hydrogenolysis. Sulfates‐doped Pt/W−S/Ti achieved 100 % conversion of glycerol, with 36 % selectivity to 1,3‐PDO and 57 % selectivity to n‐PO at 120 °C and 4 MPa, while the conversion over Pt/W/Ti only reached 57 %. Moreover, Pt/W−S/Ti offered 22.5 times more glycerol conversion (90 %) than Pt/W/Ti (4 %) for the second run. The much higher activity of the Pt/W−S/Ti was ascribed to the better dispersion of Pt and WO x species and more Brønsted acid amount. The enhanced stability of Pt/W−S/Ti was attributed to its strong anti‐leaching ability after sulfate doping.