MOF-derived Co-MOF,O-doped carbon as trifunctional electrocatalysts to enable hi

本文刊于: 《Journal of Energy Chemistry》 2021年第0期

关键词:
Metal-organicframeworks Carboncatalysts

Keywords:
Metal-organic frameworks,Carbon catalysts,Trifunctional electrocatalyst,Metal–air batteries,Water splitting
摘要
     Development of high-efficiency non-noble electrocatalysts for oxygen reduction reaction(ORR), oxygen evolution reaction(OER) and hydrogen evolution reaction(HER) is urgently needed for high-performance Zn–air batteries and overall water splitting. Here, a facile strategy to synthesize novel Co-MOF,O-doped carbon(Co-MOF-T) based on Zn, Co-doped glucosamine and ZIF-8 by pyrolysis at temperature T was demonstrated. The prepared Co-MOF-800 showed a superior oxygen reduction reaction(ORR) activity comparable to that of commercial Pt/C catalyst. In addition, this catalyst shows great potential in the overall water splitting due to the excellent oxygen evolution reaction(OER) and hydrogen evolution reaction(HER) activities. Based on the trifunctional activity, the primary Zn–air batteries using a Co-MOF-800 air electrode achieved a high open-circuit voltage of 1.38 V, a specific capacity of 671.6 mAh g–1 Zn, and a prominent peak power density of 144 mW cmà2. Also, the rechargeable Zn–air batteries based on CoMOF-800 air electrode could be smoothly run for 510 cycles with a low voltage gap of 0.58 V. Finally,the trifunctional Co-MOF-800 catalyst was applied to boost the electrochemical water splitting, demonstrating its promising potential as a green energy material for practical applications.

基金项目:
fundedbygrantsfromtheNaturalScienceFoundationofChina(21771101);supportedbyJiangsuCyanEngineeringofHigherEducation;PriorityAcademicProgramDevelopmentofJiangsuHigherEducationInstitutions(PAPD);JiangsuJointLaboratoryofAtmosphericPollutionControl;JiangsuEngin

上一篇:Nitrogen doped FeS2 nanoparticles for efficient and stable hydrogen e
下一篇:Tuning the electronic structure of the earth-abundant electrocatalysts for oxyge

分享到: 分享MOF-derived Co-MOF,O-doped carbon as trifunctional electrocatalysts to enable hi到腾讯微博           收藏
评论排行
公告 
相关期刊文献推荐
相关会议文献推荐
相关硕士文献推荐
相关博士文献推荐