电化学（中英文）2025，Vol.31Issue(1)：31-40,10.DOI:10.61558/2993-074X.3502
碳纳米管穿插钴基卟啉金属有机框架催化ORR
A CNT Intercalated Co Porphyrin-Based Metal Organic Framework Catalyst for Oxygen Reduction Reaction
摘要
Abstract
The poor electronic conductivity of metal-organic framework(MOF)materials hinders their direct application in the field of electrocatalysis in fuel cells.Herein,we proposed a strategy of embedding carbon nanotubes(CNTs)during the growth process of MOF crystals,synthesizing a metalloporphyrin-based MOF catalyst TCPPCo-MOF-CNT with a unique CNT-intercalated MOF structure.Physical characterization revealed that the CNTs enhance the overall conductivity while retaining the original characteristics of the MOF and metalloporphyrin.Simultaneously,the insertion of CNTs generated adequate mesopores and created a hierarchical porous structure that enhances mass transfer efficiency.X-ray photoelectron spectroscopic analysis confirmed that the C atom in CNT changed the electron cloud density on the catalytic active center Co,optimizing the electronic structure.Consequently,the E1/2 of the TCPPCo-MOF-CNT catalyst under neutral conditions reached 0.77 V(vs.RHE),outperforming the catalyst without CNTs.When the TCPPCo-MOF-CNT was employed as the cathode catalyst in assembling microbial fuel cells(MFCs)with Nafion-117 as the proton exchange membrane,the maxi-mum power density of MFCs reached approximately 500 mW·m-2.关键词
金属有机框架/碳纳米管穿插/电催化/氧还原反应/微生物燃料电池Key words
Metal organic framework/CNT intercalated/Electrocatalysis/Oxygen reduction reaction/Microbial fuel cell引用本文复制引用
何佩佩,师锦华,李笑语,刘明杰,方舟,和晶,李中坚,彭新生,和庆钢..碳纳米管穿插钴基卟啉金属有机框架催化ORR[J].电化学（中英文）,2025,31(1):31-40,10.基金项目
The authors gratefully acknowledge the financial support from the National Natural Science Founda-tion of China(No.22178307)and China Southern Pow-er Grid(Grant Nos.0470002022030103HX00002-01). （No.22178307）
