Title:
HYDROGEN EVOLUTION MATERIAL OF NITROGEN AND PHOSPHORUS CO-DOPED POROUS HOLLOW CARBON FIBER AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/105155
Kind Code:
A1
Abstract:
A hydrogen evolution material of a nitrogen and phosphorus co-doped porous hollow carbon fiber. Polyacrylonitrile reacts with ethanolamine to obtain oxazoline polyacrylonitrile and then reacts with diphenylphosphinic acid to obtain phosphorus-containing polyacrylonitrile, and spinning, activation, pre-oxidation, and carbonization are performed to obtain a hydrogen evolution material of a nitrogen and phosphorus co-doped porous hollow carbon fiber. The porous hollow carbon fiber has an ultrahigh specific surface area that facilitates the exposure of multiple catalytic active sites, nitrogen doping improves the electrical conductivity of the porous hollow carbon fiber, the radius of P atoms is large, and after doping, rich mesoporous structures are introduced, the specific surface area is further increased, and the release of surface electrons is accelerated, such that the electrical conductivity of the porous hollow carbon fiber is further improved; moreover, P doping improves the content of graphitic nitrogen and pyridine nitrogen in the porous hollow carbon fiber, such that the nitrogen and phosphorus co-doped porous hollow carbon fiber has excellent hydrogen evolution performance.
Inventors:
QIU SHIBAO (CN)
Application Number:
PCT/CN2021/094285
Publication Date:
May 27, 2022
Filing Date:
May 18, 2021
Export Citation:
Assignee:
GUANGZHOU RUIYIN TECH CO LTD (CN)
International Classes:
D01F9/22; C08F8/40; C08F8/48; C08F20/44; C25B1/04; D01F1/08; D01F6/54
Foreign References:
| CN112458571A | 2021-03-09 | |||
| CN108611657A | 2018-10-02 | |||
| CN111841588A | 2020-10-30 | |||
| CN107217333A | 2017-09-29 | |||
| JP2003192439A | 2003-07-09 | |||
| US3843672A | 1974-10-22 |
Other References:
ZOU ZHI-LIANG, XIA YAN-ZHI, SUI KUN-YAN, QUAN FENG-YU,J I QUAN, HAO XIAO-LI: "Synthesis of Phosphorous-Containing Flame Retardant Side Chain Modified Polyacrylonitrile", SYNTHETIC FIBER IN CHINA, SHANGHAISHI HECHENG XIANWEI YANJIUSUO, SHANGHAI, CHINA, vol. 40, no. 7, 25 July 2011 (2011-07-25), Shanghai, CHINA , pages 18 - 22, XP055932584, ISSN: 1001-7054, DOI: 10.16090/j.cnki.hcxw.2011.07.024
Attorney, Agent or Firm:
GUANGZHOU LIEGOU INTELLECTUAL PROPERTY AGENCY CO. LTD. (CN)
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