Title:
COPPER CATALYST FOR PREPARING ETHANOL BY MEANS OF ELECTROREDUCTION OF CO2, AND PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/024699
Kind Code:
A1
Abstract:
The present invention belongs to the field of electrocatalysis. Disclosed are a copper catalyst for preparing ethanol by means of the electroreduction of CO2, and a preparation method therefor and the use thereof. According to the present invention, by controlling vertical graphene growing on a copper surface, controllable adjustments of the longitudinal depth and number of stepped sites on the surface of a catalyst are achieved; and original low-surface-energy Cu(100) and Cu(111) crystal planes on the copper surface can be recombined into high-surface-energy Cu(110), Cu(210) and Cu(310) crystal planes, thus showing the specific atomic arrangement characteristics of high surface energy. The copper catalyst with a surface in a periodic stepped shape has a low C-C coupling potential barrier and a good ethanol reaction path, can realize the preparation of ethanol fuel by means of the electrocatalytic reduction of CO2, and has high selectivity.
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Inventors:
XIAO RUI (CN)
XU WEICONG (CN)
LIU CHAO (CN)
GONG FENG (CN)
SUN XIANGYANG (CN)
XU WEICONG (CN)
LIU CHAO (CN)
GONG FENG (CN)
SUN XIANGYANG (CN)
Application Number:
PCT/CN2022/102644
Publication Date:
March 02, 2023
Filing Date:
June 30, 2022
Export Citation:
Assignee:
UNIV SOUTHEAST (CN)
International Classes:
C25B11/075; C23C16/26; C25B3/07; C25B3/26
Domestic Patent References:
| WO2017073978A1 | 2017-05-04 |
Foreign References:
| CN113818040A | 2021-12-21 | |||
| CN111534833A | 2020-08-14 | |||
| CN110548509A | 2019-12-10 |
Other References:
KIM JU YE, PARK WOONGHYEON, CHOI CHANGHYEOK, KIM GUKBO, CHO KYEONG MIN, LIM JINKYU, KIM SEON JOON, AL-SAGGAF AHMED, GEREIGE ISSAM,: "High Facets on Nanowrinkled Cu via Chemical Vapor Deposition Graphene Growth for Efficient CO 2 Reduction into Ethanol", ACS CATALYSIS, vol. 11, no. 9, 7 May 2021 (2021-05-07), US , pages 5658 - 5665, XP093039727, ISSN: 2155-5435, DOI: 10.1021/acscatal.0c05263
HORI Y., TAKAHASHI I., KOGA O., HOSHI N.: "Electrochemical reduction of carbon dioxide at various series of copper single crystal electrodes", JOURNAL OF MOLECULAR CATALYSIS A CHEMICAL, vol. 199, no. 1-2, 16 May 2003 (2003-05-16), NL , pages 39 - 47, XP093039731, ISSN: 1381-1169, DOI: 10.1016/S1381-1169(03)00016-5
HORI Y., TAKAHASHI I., KOGA O., HOSHI N.: "Electrochemical reduction of carbon dioxide at various series of copper single crystal electrodes", JOURNAL OF MOLECULAR CATALYSIS A CHEMICAL, vol. 199, no. 1-2, 16 May 2003 (2003-05-16), NL , pages 39 - 47, XP093039731, ISSN: 1381-1169, DOI: 10.1016/S1381-1169(03)00016-5
Attorney, Agent or Firm:
JW IP LAW FIRM (CN)
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