Title:
METHOD FOR MANUFACTURING CORE-SHELL STRUCTURE BY USING RAPID DELITHIATION, CORE-SHELL STRUCTURE MANUFACTURED THEREBY, AND CATALYST USING SAME
Document Type and Number:
WIPO Patent Application WO/2022/203201
Kind Code:
A1
Abstract:
The present invention relates to a method for manufacturing a core-shell structure by using rapid delithiation, a core-shell structure manufactured thereby, and a catalyst using same. According to the present invention, a structure having a core with high electric conductivity and a shell having excellent reactivity can be manufactured by controlling crystallinity of an inner portion and a surface portion of a material through lithiation or delithiation. In addition, the changes in crystallinity and chemical characteristics of the material can be maximized through rapid delithiation. Therefore, the core-shell structure of the present invention has excellent conductivity and reactivity and can be effectively used as a water-splitting catalyst. In the present invention, lithiation and delithiation are employed only once without using an expensive material, such as a precious metal, and thus a core-shell structure with excellent catalytic characteristics can be manufactured by an economical and simple process.
Inventors:
PARK WON IL (KR)
CHANG WON JUN (KR)
CHANG WON JUN (KR)
Application Number:
PCT/KR2022/002119
Publication Date:
September 29, 2022
Filing Date:
February 11, 2022
Export Citation:
Assignee:
IUCF HYU (KR)
International Classes:
B01J37/34; B01J23/75; B01J23/755; B01J35/00; B01J37/08; C25B1/04
Foreign References:
| KR20190009686A | 2019-01-29 | |||
| KR20210006216A | 2021-01-18 |
Other References:
ZHANG YUEFEI; WANG ZHENYU; LI YUJIE; ZHAO KEJIE: "Lithiation of ZnO nanowires studied by in-situ transmission electron microscopy and theoretical analysis", MECHANICS OF MATERIALS, AMSTERDAM, NL, vol. 91, 1 January 1900 (1900-01-01), NL , pages 313 - 322, XP029315461, ISSN: 0167-6636, DOI: 10.1016/j.mechmat.2015.05.004
WANG YE, HUANG ZHI XIANG, SHI YUMENG, WONG JEN IT, DING MENG, YANG HUI YING: "Designed hybrid nanostructure with catalytic effect: beyond the theoretical capacity of SnO2 anode material for lithium ion batteries", SCIENTIFIC REPORTS, vol. 5, no. 1, 1 August 2015 (2015-08-01), XP055971025, DOI: 10.1038/srep09164
CUMMINS DUSTIN R., MARTINEZ ULISES, KAPPERA RAJESH, VOIRY DAMIEN, MARTINEZ-GARCIA ALEJANDRO, JASINSKI JACEK, KELLY DAN, CHHOWALLA : "Catalytic Activity in Lithium-Treated Core–Shell MoO x /MoS 2 Nanowires", THE JOURNAL OF PHYSICAL CHEMISTRY C, AMERICAN CHEMICAL SOCIETY, US, vol. 119, no. 40, 8 October 2015 (2015-10-08), US , pages 22908 - 22914, XP055971028, ISSN: 1932-7447, DOI: 10.1021/acs.jpcc.5b05640
WANG YE, HUANG ZHI XIANG, SHI YUMENG, WONG JEN IT, DING MENG, YANG HUI YING: "Designed hybrid nanostructure with catalytic effect: beyond the theoretical capacity of SnO2 anode material for lithium ion batteries", SCIENTIFIC REPORTS, vol. 5, no. 1, 1 August 2015 (2015-08-01), XP055971025, DOI: 10.1038/srep09164
CUMMINS DUSTIN R., MARTINEZ ULISES, KAPPERA RAJESH, VOIRY DAMIEN, MARTINEZ-GARCIA ALEJANDRO, JASINSKI JACEK, KELLY DAN, CHHOWALLA : "Catalytic Activity in Lithium-Treated Core–Shell MoO x /MoS 2 Nanowires", THE JOURNAL OF PHYSICAL CHEMISTRY C, AMERICAN CHEMICAL SOCIETY, US, vol. 119, no. 40, 8 October 2015 (2015-10-08), US , pages 22908 - 22914, XP055971028, ISSN: 1932-7447, DOI: 10.1021/acs.jpcc.5b05640
Attorney, Agent or Firm:
HAEUM PATENT & LAW FIRM (KR)
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