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Title:
BIFUNCTIONAL GRAPHENE OXIDE CATALYST, PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/083142
Kind Code:
A1
Abstract:
Disclosed are a bifunctional graphene oxide catalyst, a preparation method therefor and the use thereof. The preparation method comprises: step I. sulfonating graphene oxide by adding an organic acid to obtain monofunctional graphene oxide with an acid active center; and step II. in situ immobilizing noble metal nanoparticles on carbon nanosheets of the sulfonated graphene oxide. The method is simpler and more convenient than existing bifunctional catalyst synthesis methods. The bifunctional graphene oxide catalyst, which is provided with double catalytic active centers (an acid active center and a noble metal active center), can provide an appropriate acidity and a high-efficiency redox site. In addition to being applied to a reaction for the catalytic conversion of fructose into 2,5-diformylfuran in one pot, the catalyst can also be applied to an etherification-oxidation reaction, a transesterification-hydrogenation reaction and a dehydration-hydrogenation reaction. By regulating and controlling the spatial structures of the two active centers of the bifunctional graphene oxide catalyst, the reaction catalytic activity and product selectivity are improved.

Inventors:
LEI JUNXI (CN)
CAI ZHUHUA (CN)
WANG ZHICHENG (CN)
LI XIANG (CN)
LI KAIXIN (CN)
Application Number:
PCT/CN2021/099939
Publication Date:
April 28, 2022
Filing Date:
June 15, 2021
Export Citation:
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Assignee:
GUANGZHOU WEIGANG ENV CO LTD (CN)
International Classes:
B01J31/22; B01J35/10; B01J37/00; C07D307/36; C07D307/58
Foreign References:
CN104043481A2014-09-17
CN111054392A2020-04-24
CN112264100A2021-01-26
CN110756187A2020-02-07
CN105903481A2016-08-31
CN103359728A2013-10-23
KR101640545B12016-07-18
KR101846783B12018-04-06
Other References:
HE XIAODONG: "Preparation of Functional Graphene and Its Application as a Catalyst", CHINESE MASTER'S THESES FULL-TEXT DATABASE, 1 February 2012 (2012-02-01), pages 1 - 94, XP055924477
Attorney, Agent or Firm:
GUANGDONG JILY INTELLECTUAL PROPERTY OFFICE CO., LTD. (CN)
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