Title:
COMPOSITE CATALYST COMPRISING GOLD NANOPARTICLES IMPREGNATED IN POROUS SUPPORT
Document Type and Number:
WIPO Patent Application WO/2023/191257
Kind Code:
A1
Abstract:
The present invention relates to a composite catalyst, and to a composite catalyst comprising: a porous support comprising mesopores; and gold nanoparticles impregnated in the pores of the porous support, wherein the radial distribution function obtained by Fourier transform of an extended X-ray absorption fine structure (EXAFS) spectrum satisfies the following relation 1. [Relation 1] (DH2/DH1) < 0.3 In relation 1, DH1 is the height of the peak at interatomic distance D1, DH2 is the height of the peak at interatomic distance D2, and D1 and D2 satisfy the following relations 2 and 3. [Relation 2] 0.8≤(D1/D3)≤0.95 [Relation 3] 0.6≤(D2/D3)≤0.7 In relations 2 and 3, D3 means the interatomic distance of an Au-Au bond in the bulk phase, which is present at 2.8-3.0 Å.
Inventors:
KANG SHINHYUN (KR)
LIM SUNGHWAN (KR)
LIM SUNGHWAN (KR)
Application Number:
PCT/KR2022/021667
Publication Date:
October 05, 2023
Filing Date:
December 29, 2022
Export Citation:
Assignee:
QUANTUM CAT CO LTD (KR)
International Classes:
B01J35/00; B01D53/86; B01J23/52; B01J35/10
Foreign References:
| KR20210124485A | 2021-10-14 | |||
| KR20200114460A | 2020-10-07 | |||
| KR20180035118A | 2018-04-05 |
Other References:
WU BING-HUI; YANG HUA-YAN; HUANG HUA-QI; CHEN GUANG-XU; ZHENG NAN-FENG: "Solvent effect on the synthesis of monodisperse amine-capped Au nanoparticles", CHINESE CHEMICAL LETTERS, ELSEVIER, AMSTERDAM, NL, vol. 24, no. 6, 28 April 2013 (2013-04-28), AMSTERDAM, NL , pages 457 - 462, XP028557789, ISSN: 1001-8417, DOI: 10.1016/j.cclet.2013.03.054
YANG DING, TIAN ZHENYUN, SONG JINGJING, LU TENGFEI, QIU GUIBAO, KANG JIALONG, ZHOU HANGHANG, MAO HONGXIA, XIAO JIAN: "Influences of sintering temperature on pore morphology, porosity, and mechanical behavior of porous Ti", MATERIALS RESEARCH EXPRESS, vol. 8, no. 10, 1 October 2021 (2021-10-01), pages 106519, XP093096058, DOI: 10.1088/2053-1591/ac1b63
YANG DING, TIAN ZHENYUN, SONG JINGJING, LU TENGFEI, QIU GUIBAO, KANG JIALONG, ZHOU HANGHANG, MAO HONGXIA, XIAO JIAN: "Influences of sintering temperature on pore morphology, porosity, and mechanical behavior of porous Ti", MATERIALS RESEARCH EXPRESS, vol. 8, no. 10, 1 October 2021 (2021-10-01), pages 106519, XP093096058, DOI: 10.1088/2053-1591/ac1b63
Attorney, Agent or Firm:
PLUS INTERNATIONAL IP LAW FIRM (KR)
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