期刊
SCIENCE
卷 376, 期 6590, 页码 288-+出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.abm9257
关键词
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资金
- National Natural Science Foundation of China [21721001, 92061000, 92061204, 21972113, 22171235, 21827801, 21972120, 21703100]
- National Key Research and Development Program of China [2017YFA0206801, 2017YFA0206802, 2017YFB0307301]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDA21020800]
Fullerene can act as an electron buffer for a copper-silica catalyst, enabling high yield of ethylene glycol. This mild reaction pathway can be combined with the already-industrialized ambient reaction.
Bulk chemicals such as ethylene glycol (EG) can be industrially synthesized from either ethylene or syngas, but the latter undergoes a bottleneck reaction and requires high hydrogen pressures. We show that fullerene (exemplified by C-60) can act as an electron buffer for a copper-silica catalyst (Cu/SiO2). Hydrogenation of dimethyl oxalate over a C-60-Cu/SiO2 catalyst at ambient pressure and temperatures of 180 degrees to 190 degrees C had an EG yield of up to 98 +/- 1%. In a kilogram-scale reaction, no deactivation of the catalyst was seen after 1000 hours. This mild route for the final step toward EG can be combined with the already-industrialized ambient reaction from syngas to the intermediate of dimethyl oxalate.
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