Title:
PREPARATION METHOD FOR NITROGEN-PHOSPHORUS DOPED POROUS CARBON FOR WIDE-PH RANGE OXYGEN REDUCTION ELECTROCATALYSIS
Document Type and Number:
WIPO Patent Application WO/2022/142155
Kind Code:
A1
Abstract:
Provided is a preparation method for a nitrogen-phosphorus doped porous carbon for wide-pH range oxygen reduction electrocatalysis. A natural mineral-based carbon source is taken as a raw material, and synthesis is performed in two paths by means of "a nitrogen-phosphorus sequential doping method". The preparation method is high in cost benefit, and is sustainable and can be used for large-scale production; a variable-frequency ultrasonic mixing method ensures relatively high performance. The prepared nitrogen-phosphorus doped porous carbon has dispersed sheet morphology, rich edges and defects, large specific surface area and pore volume, sufficient micropores and mesopores and a proper amount of doped nitrogen and doped phosphorus, shows good electrochemical catalytic performance in an alkaline electrolyte, an acidic electrolyte, and a neutral electrolyte as an oxygen reduction reaction electrocatalyst, has good micromolecule and methanol poisoning resistance, and has good application potential in alkaline fuel cells/metal-air cells, proton exchange membrane fuel cells (acidic electrolytes) and biofuel cells (neutral electrolytes).
Inventors:
XU LANG (CN)
QI JIAWEI (CN)
JIANG HAISHEN (CN)
BAI PEIYAO (CN)
LIU WEIQI (CN)
JIN BAILIN (CN)
ZHANG WENDU (CN)
QI JIAWEI (CN)
JIANG HAISHEN (CN)
BAI PEIYAO (CN)
LIU WEIQI (CN)
JIN BAILIN (CN)
ZHANG WENDU (CN)
Application Number:
PCT/CN2021/099599
Publication Date:
July 07, 2022
Filing Date:
June 11, 2021
Export Citation:
Assignee:
UNIV CHINA MINING (CN)
International Classes:
B01J35/10; C01B32/05; H01M4/96
Domestic Patent References:
| WO2016164300A2 | 2016-10-13 |
Foreign References:
| CN112499613A | 2021-03-16 | |||
| CN109678153A | 2019-04-26 | |||
| CN109841858A | 2019-06-04 | |||
| CN104785283A | 2015-07-22 | |||
| CN109244494A | 2019-01-18 |
Other References:
LIANG BOLONG, LI KEXUN, LIU YI, KANG XIAOWEN: "Nitrogen and phosphorus dual-doped carbon derived from chitosan: An excellent cathode catalyst in microbial fuel cell", CHEMICAL ENGENEERING JOURNAL, ELSEVIER, AMSTERDAM, NL, vol. 358, 1 February 2019 (2019-02-01), AMSTERDAM, NL , pages 1002 - 1011, XP055948300, ISSN: 1385-8947, DOI: 10.1016/j.cej.2018.09.217
ZHAO GANG; SHI LE; XU JIANBO; YAN XIAOHUI; ZHAO T.S.: "Role of phosphorus in nitrogen, phosphorus dual-doped ordered mesoporous carbon electrocatalyst for oxygen reduction reaction in alkaline media", INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, ELSEVIER, AMSTERDAM, NL, vol. 43, no. 3, 19 December 2017 (2017-12-19), AMSTERDAM, NL, pages 1470 - 1478, XP085331118, ISSN: 0360-3199, DOI: 10.1016/j.ijhydene.2017.11.165
ZHAO GANG; SHI LE; XU JIANBO; YAN XIAOHUI; ZHAO T.S.: "Role of phosphorus in nitrogen, phosphorus dual-doped ordered mesoporous carbon electrocatalyst for oxygen reduction reaction in alkaline media", INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, ELSEVIER, AMSTERDAM, NL, vol. 43, no. 3, 19 December 2017 (2017-12-19), AMSTERDAM, NL, pages 1470 - 1478, XP085331118, ISSN: 0360-3199, DOI: 10.1016/j.ijhydene.2017.11.165
Attorney, Agent or Firm:
JW IP LAW FIRM (CN)
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