Title:
METHOD FOR PRODUCING OXYGEN AND HYDROGEN BY MEANS OF WATER DECOMPOSITION
Document Type and Number:
WIPO Patent Application WO/2022/158530
Kind Code:
A1
Abstract:
The present invention provides a novel, simple and environmentally suitable technology for producing oxygen and hydrogen with a high water decomposition rate. Based on the founding that an aromatic amine polymer functions as an oxidation catalyst for generating oxygen from water and a polyarylene vinylene functions as a reduction catalyst for generating hydrogen from water, the present invention has produced oxygen and hydrogen at a high rate by applying a low overvoltage with respect to the equilibrium potential, since both of the catalysts operate with an extremely low overvoltage. In addition, the production rate of oxygen and hydrogen has been increased by irradiating the water oxidation/oxygen generation catalyst with light including sunlight. The aromatic amine polymer and the polyarylene vinylene are low-cost aromatic polymers that exhibit extremely high durability in water over a wide pH range, while enabling the achievement of hydrophilicity/hydrophobicity, interfacial area, shape and the like that are suitable for electrode catalysts.
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Inventors:
NISHIDE HIROYUKI (JP)
OKA KOUKI (JP)
OKA KOUKI (JP)
Application Number:
PCT/JP2022/002014
Publication Date:
July 28, 2022
Filing Date:
January 20, 2022
Export Citation:
Assignee:
INTERNATIONAL FRONTIER TECH LABORATORY INC (JP)
International Classes:
C01B3/02; B01J31/06; B01J35/02; C01B3/04; C01B13/02
Domestic Patent References:
| WO2012070296A1 | 2012-05-31 | |||
| WO2016024452A1 | 2016-02-18 | |||
| WO2009131183A1 | 2009-10-29 |
Foreign References:
| CN107754597A | 2018-03-06 | |||
| JP2020065878A | 2020-04-30 |
Other References:
HIROYUKI NISHIDE ET AL., METHOD FOR PRODUCING HYDROGEN
SUEN, N-T ET AL., CHEM. SOC. REV, vol. 46, 2017, pages 337 - 365
PARK, S ET AL., ENERGY ENVIRON. SCI, vol. 13, 2020, pages 2310 - 2340
ZHAO, Y ET AL., NAT. COMMUN, vol. 4, 2013, pages 2390
LIN, Y ET AL., ANGEW. CHEM., vol. 57, 2018, pages 12563 - 12566
MAHMOOD, N ET AL., ADV. SCI, vol. 5, 2018, pages 1700464
HU, C ET AL., ENERGY ENVIRON. SCI, 2019
OKA, K ET AL., ADV. ENERGY MATER, vol. 9, 2019, pages 1803286 - 594
OKA, KNISHIDE, H, REDOX POLYMER FOR ENERGY AND NANOMEDICINE, ROYAL SOC. CHEM, 2020, pages 137 - 165
OKA, K ET AL., ENERGY ENVIRON. SCI, vol. 11, 2018, pages 1335 - 1342
SUEN, N-T ET AL., CHEM. SOC. REV, vol. 46, 2017, pages 337 - 365
PARK, S ET AL., ENERGY ENVIRON. SCI, vol. 13, 2020, pages 2310 - 2340
ZHAO, Y ET AL., NAT. COMMUN, vol. 4, 2013, pages 2390
LIN, Y ET AL., ANGEW. CHEM., vol. 57, 2018, pages 12563 - 12566
MAHMOOD, N ET AL., ADV. SCI, vol. 5, 2018, pages 1700464
HU, C ET AL., ENERGY ENVIRON. SCI, 2019
OKA, K ET AL., ADV. ENERGY MATER, vol. 9, 2019, pages 1803286 - 594
OKA, KNISHIDE, H, REDOX POLYMER FOR ENERGY AND NANOMEDICINE, ROYAL SOC. CHEM, 2020, pages 137 - 165
OKA, K ET AL., ENERGY ENVIRON. SCI, vol. 11, 2018, pages 1335 - 1342
Attorney, Agent or Firm:
PATENT CORPORATE BODY DAI-ICHI KOKUSAI TOKKYO JIMUSHO (JP)
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