Affiliation:
1. Key Laboratory of Engineering Dielectrics and Its Application (Ministry of Education) School of Electrical and Electronic Engineering Harbin University of Science and Technology Harbin 150080 P. R. China
2. College of Electrical Engineering Zhejiang University of Water Resources and Electric Power Hangzhou 310000 P. R. China
Abstract
AbstractMagnesium‐ion batteries are widely studied for its environmentally friendly, low‐cost, and high volumetric energy density. In this work, the solvothermal method is used to prepare titanium dioxide bronze (TiO2‐B) nanoflowers with different nickel (Ni) doping concentrations for use in magnesium ion batteries as cathode materials. As Ni doping enhances the electrical conductivity of TiO2‐B and promotes magnesium ion diffusion, the band gap of TiO2‐B host material can be significantly reduced, and as Ni content increases, diffusion contributes more to capacity. According to the electrochemical test, TiO2‐B exhibits excellent electrochemical performance when the Ni element doping content is 2 at% and it is coated with reduced graphene oxide@carbon nanotube (RGO@CNT). At a current density of 100 mA g−1, NT‐2/RGO@CNT discharge specific capacity is as high as 167.5 mAh g−1, which is 2.36 times of the specific discharge capacity of pure TiO2‐B. It is a very valuable research material for magnesium ion battery cathode materials.
Funder
National Natural Science Foundation of China
Natural Science Foundation of Heilongjiang Province
Subject
Biomaterials,Biotechnology,General Materials Science,General Chemistry
Cited by
13 articles.
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