N-doped CoP nanoparticles embedded in electrospun N-doped porous carbon nanofiber as high-efficiency oxygen evolution electrocatalysts

被引：18
作者：
Cui, Zhixiang [1 ,2 ,3 ,4 ,5 ]
Lin, Jixin [1 ,2 ,3 ,4 ,5 ]
Wu, Jiahui [1 ,2 ,3 ,4 ,5 ]
Yu, Jiaqi [1 ,2 ,3 ,4 ,5 ]
Si, Junhui [1 ,2 ,3 ,4 ,5 ]
Wang, Qianting [1 ,2 ,3 ,4 ,5 ]
机构：
[1] Fujian Univ Technol, Coll Mat Sci & Engn, Fuzhou 350118, Fujian, Peoples R China
[2] Fu Jian Prov Key Lab Adv Mat Proc & Applicat, Fuzhou 350118, Fujian, Peoples R China
[3] Univ Fujian, Key Lab Polymer Mat & Prod, Fuzhou 350118, Fujian, Peoples R China
[4] Fujian Prov Precis Proc Mfg Engn Res Ctr, Fuzhou 350118, Fujian, Peoples R China
[5] Mold Engn Res Ctr Fujian Prov, Fuzhou 350118, Fujian, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2021年 / 854卷
关键词：
Nitrogen-doping; Cobalt phosphide; Oxygen evolution reaction; Electrocatalyst; REDUCED GRAPHENE OXIDE; BIFUNCTIONAL ELECTROCATALYST; REDUCTION REACTION; WATER; HYDROGEN; CATALYST; PHOSPHIDE; NANOCRYSTALS; PERFORMANCE; NANOSHEETS;
D O I：
10.1016/j.jallcom.2020.156830
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The development of high-efficiency and low-cost oxygen evolution reaction (OER) electrocatalysts has attracted increasing research attention. Herein, we report a novel nanocomposite of N-doped CoP nanoparticles embedded in porous carbon nanofibers (N-CoP@NPCNFs) synthesized using zeolitic imidazolate framework-67 (ZIF-67)@Polyacrylonitrile (PAN) nanofibers (ZIF-67@PNFs) as the precursor through carbonization, oxidation and phosphidation with N-doping. The fabricated N-1-CoP@NPCNFs-900 shows outstanding electrocatalytic properties for OER due to a synergistic effect between the carbon nanofibers and the N-doped CoP nanoparticles. It exhibits a low overpotential of only 266 mV at 10 mA cm(-2), a small Tafel slope of 70 mV dec(-1) and excellent durability for OER in 1.0 M KOH. Therefore, the obtained N-1-CoP@NPCNFs-900 is promising for application as a high-efficiency and low-cost OER electrocatalyst. (C) 2020 Published by Elsevier B.V.
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页数：9
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