Bandgap tuned and oxygen vacant TiO2-x anode materials with enhanced electrochemical properties for lithium ion batteries

被引：34

作者：

Kang, Suk Hyun ^{[1
,2
]}

Jo, Yong Nam ^{[1
,2
]}

Prasanna, K. ^{[1
,2
]}

Santhoshkumar, P. ^{[1
,2
]}

Joe, Youn Cheol ^{[1
,2
]}

Vediappan, Kumaran ^{[3
,4
]}

Gnanamuthu, Ramasamy ^{[3
,4
]}

Lee, Chang Woo ^{[1
,2
]}

机构：

[1] Kyung Hee Univ, Coll Engn, Dept Chem Engn, 1732 Deogyeong Daero, Yongin 17104, Gyeonggi, South Korea

[2] Kyung Hee Univ, Ctr SMART Energy Platform, Coll Engn, 1732 Deogyeong Daero, Yongin 17104, Gyeonggi, South Korea

[3] SRM Inst Sci & Technol, SRM Res Inst, Kattankuthur 603203, Tamil Nadu, India

[4] SRM Inst Sci & Technol, Dept Chem, Kattankuthur 603203, Tamil Nadu, India

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2019年 / 71卷

基金：

新加坡国家研究基金会;

关键词：

Energy materials; Lithium ion batteries; Anodes; Titanium oxide; Energy conversion; Electronic conductivity; PHOTOCATALYTIC ACTIVITY; FE3O4; NANOPARTICLES; FACILE SYNTHESIS; SURFACE-DEFECTS; PERFORMANCE; CARBON; NANOCRYSTALS; ELECTRODE; TITANIA; COMPOSITES;

D O I：

10.1016/j.jiec.2018.11.020

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

As a promising anode material, TiO2-x, is prepared with a low bandgap by adding a zinc powder using a solvothermal reaction. It is homogeneous, spherical, and 30 nm in size, changing from anatase to rutile. It shows a high discharge capacity, 253.8 mAh g(-1), after 50 cycles at 100 mA g(-1) whereas the pristine TiO2 material delivers mere 81.1 mAh g(-1). The improved electrochemical performance with cycling of the TiO2-x compared with the pristine TiO2 material is attributed to the presence of Ti-3* and/or oxygen vacancies. (C) 2018 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

引用

页码：177 / 183

页数：7

共 56 条

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