Title:
METAL OXIDE HAVING SPINEL-TYPE CRYSTAL STRUCTURE, METHOD FOR PRODUCING SAME, CARBON DIOXIDE REDUCTION METHOD, AND CARBON DIOXIDE REDUCTION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/058182
Kind Code:
A1
Abstract:
Provided are: a carbon dioxide reduction catalyst that can reduce carbon dioxide under mild conditions; a carbon dioxide reduction method using the carbon dioxide reduction catalyst; and a carbon dioxide reduction apparatus. The metal oxide according to the present invention has a spinel-type crystal structure comprising a metal element A, manganese and oxygen. The A comprises at least one metal element selected from the group consisting of nickel and copper, the (manganese)/(oxygen) molar compositional ratio is 1:1.8 to 1:2.2, and the (metal element A)/(manganese) molar compositional ratio is 1:1.7 to 1:2.3. The metal oxide is characterized in that the ratio of the intensity of a peak having a 2θ value of 16° to 20° (P18°) to the intensity of a peak having a 2θ value of 35° to 39° (P37°) in an X-ray diffraction pattern obtained by an X-ray diffraction measurement using Cu-Kα line, i.e., I18°/I37°, is 0.2 or more.
Inventors:
KOBAYASHI HIROAKI (JP)
FUKUSHIMA JUN (JP)
OKAWARA KAZUKI (JP)
HOMMA ITARU (JP)
TAKIZAWA HIROTSUGU (JP)
FUKUSHIMA JUN (JP)
OKAWARA KAZUKI (JP)
HOMMA ITARU (JP)
TAKIZAWA HIROTSUGU (JP)
Application Number:
PCT/JP2021/037109
Publication Date:
April 13, 2023
Filing Date:
October 07, 2021
Export Citation:
Assignee:
UNIV TOHOKU (JP)
International Classes:
C01G45/02; B01J23/889; C01G45/12
Domestic Patent References:
| WO2008099847A1 | 2008-08-21 | |||
| WO2010090192A1 | 2010-08-12 |
Foreign References:
| US20160361711A1 | 2016-12-15 | |||
| CN110193368A | 2019-09-03 | |||
| CN110289175A | 2019-09-27 | |||
| CN111551543A | 2020-08-18 | |||
| US20180043340A1 | 2018-02-15 | |||
| KR20170009429A | 2017-01-25 | |||
| US20210114004A1 | 2021-04-22 | |||
| JP2021023840A | 2021-02-22 |
Other References:
WANG WENJU, FAN LILI, WANG GUOPING: "Study on chemical looping reforming of ethanol (CLRE) for hydrogen production using NiMn2O4 spinel as oxygen carrier", JOURNAL OF THE ENERGY INSTITUTE, vol. 90, no. 6, 1 December 2017 (2017-12-01), pages 884 - 892, XP093056136, ISSN: 1743-9671, DOI: 10.1016/j.joei.2016.08.006
FAN JIE, ZHANG YE, YANG YONGXING, HAO JUNSHENG, WANG YONGZHAO, QIAN ANIU: "Performance of thermochemical energy storage for spinel CuMn2O4 material", JOURNAL OF ENERGY STORAGE, ELSEVIER BV, NL, vol. 41, 1 September 2021 (2021-09-01), NL , pages 102881, XP093056140, ISSN: 2352-152X, DOI: 10.1016/j.est.2021.102881
S. GAO ET AL.: "Ultrathin Co3O4 Layers Realizing Optimized CO2 Electroreduction to Formate", ANGEW. CHEM. INT. ED., vol. 55, 2016, pages 698
J.M.SERRA ET AL.: "Hydrogen Production via Microwave-Induced Water Splitting at Low Temperature", NATURE ENERGY, vol. 5, 2020, pages 910 - 919, XP037289880, DOI: 10.1038/s41560-020-00720-6
FAN JIE, ZHANG YE, YANG YONGXING, HAO JUNSHENG, WANG YONGZHAO, QIAN ANIU: "Performance of thermochemical energy storage for spinel CuMn2O4 material", JOURNAL OF ENERGY STORAGE, ELSEVIER BV, NL, vol. 41, 1 September 2021 (2021-09-01), NL , pages 102881, XP093056140, ISSN: 2352-152X, DOI: 10.1016/j.est.2021.102881
S. GAO ET AL.: "Ultrathin Co3O4 Layers Realizing Optimized CO2 Electroreduction to Formate", ANGEW. CHEM. INT. ED., vol. 55, 2016, pages 698
J.M.SERRA ET AL.: "Hydrogen Production via Microwave-Induced Water Splitting at Low Temperature", NATURE ENERGY, vol. 5, 2020, pages 910 - 919, XP037289880, DOI: 10.1038/s41560-020-00720-6
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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