新型炭材料（中英文）2024，Vol.39Issue(3)：526-537,12.DOI:10.1016/S1872-5805(24)60848-6
可控构建分级多孔炭载CoP纳米颗粒催化剂用于高效氧还原反应
Controllable construction of CoP nanoparticles anchored on a nitrogen-doped porous carbon as an electrocatalyst for highly efficient oxygen reduction in Zn-air batteries
摘要
Abstract
Exploring cost-efficient and highly-efficient noble metal-free catalysts for the oxygen reduction reactions(ORRs)in-volved in sustainable energy devices remains a great challenge.Transition-metal phosphides supported on heteroatom-doped carbons have shown potential as alternative candidates for precious metals because of their tunable electronic structures and higher catalytic performance.Phosphating was used to construct CoP nanoparticles(NPs)anchored on a nitrogen-doped porous carbon framework(CoP@NC)from Co NPs loaded on NC,using PH3 gas released from NaH2PO2 during heat treatment.The dodecahedral structure of Co NPs was retained in their transformation to CoP NPs.The CoP@NC electrocatalyst shows a remarkable ORR activity with a half-wave potential up to 0.92 V under alkaline conditions,which is attributed to the combined coupling between the well dispersed CoP nanoparticles on the nitrogen-doped carbon and the efficient mass transport in the porous structure.Zinc-air batteries assembled with the CoP@NC electrocatalyst as a cathode have a high open-circuit voltage of 1.51 V and power density of 210.1 mW cm-2.This work provides a novel strategy to develop low-cost catalysts with an excellent ORR performance to promote their practical use in metal-air batteries.关键词
电催化剂/Co基催化剂/金属磷化物/ORR/锌-空气电池Key words
Electrocatalysts/Co-based catalysts/Metal phosphides/ORR/Zinc-air battery分类
化学化工引用本文复制引用
闫晓丽,王奎,郝姝葳,周广达,杨浩伟,张华,郭俊杰..可控构建分级多孔炭载CoP纳米颗粒催化剂用于高效氧还原反应[J].新型炭材料（中英文）,2024,39(3):526-537,12.基金项目
This work was supported by the National Natur-al Science Foundation of China(12305332),Natural Science Foundation of Shanxi Province(202203021221089),Science and Technology Innova-tion Talent Team Project of Shanxi Province(202304051001010),Scientific and Technological In-novation Programs of Higher Education Institutions in Shanxi(2019L0253),and Program for the Innovative Talents of Higher Education Institutions of Shanxi(PTIT). 国家自然科学基金(12305332) （12305332）
山西省自然科学基金(202203021221089) （202203021221089）
山西省科技创新人才团队项目(202304051001010) （202304051001010）
山西省高等学校科技创新项目(2019L0253) （2019L0253）
山西省高等学校创新人才计划(PTIT). （PTIT）
