Nickel-doped δ-MnO<sub>2</sub> abundant in oxygen vacancies as a cathode material for aqueous Zn-ion batteries with superior performance
Shaolin Yang, Fangfang Li, Panpan Fu, Cheng Zhen, Jiandong Wu, Hui Lü, Chunping Hou, Zhilin Sheng
Abstract
Ni doping modified the crystallinity of δ-MnO 2 and introduced extra oxygen vacancies, enhancing conductivity, specific surface area, and total pore volume. Thus endowing the cathode with a high specific capacity of 401.6 mA h g −1 at 0.1 A g −1 .
Topics & Concepts
NickelCathodeMaterials scienceDopingIonAqueous solutionOxygenInorganic chemistryMetallurgyChemistryOptoelectronicsPhysical chemistryOrganic chemistryAdvanced battery technologies researchElectrocatalysts for Energy ConversionCopper-based nanomaterials and applications