Mechanistic insight into bimetallic CoNi-MOF arrays with enhanced performance for supercapacitors
Xianyu Chu, Fanling Meng, Ting Deng, Yue Lu, Олександр Бондарчук, Manling Sui, Ming Feng, Haibo Li, Wei Zhang
Abstract
). The introduction of Co into the Ni-MOF matrix shortens Co/Ni-centered bond distances, resulting in improved bond strength, facilitating the charge transfer and increasing the electrical conductivity of the CoNi-MOF, which were proved by X-ray absorption fine structure (XAFS) spectroscopy, high angle annular dark field (HAADF) imaging, and electrochemical impedance spectroscopy (EIS). Our study demonstrates the origin of performance improvements and, therefore, may provide a feasible scheme to unlock high-performance MOF electrode materials.
Topics & Concepts
Bimetallic stripSupercapacitorMaterials scienceNanotechnologyChemical engineeringChemistryElectrochemistryElectrodeMetallurgyPhysical chemistryMetalEngineeringSupercapacitor Materials and FabricationAdvancements in Battery MaterialsElectrocatalysts for Energy Conversion