Flowerlike Ti-Doped MoO3 Conductive Anode Fabricated by a Novel NiTi Dealloying Method: Greatly Enhanced Reversibility of the Conversion and Intercalation Reaction
作者:Yan, Y (Yan, Yu)[ 1 ] ; Li, SB (Li, Shaobo)[ 1,2 ] ; Yuan, B (Yuan, Bin)[ 1,2 ] ; Hu, RZ (Hu, Renzong)[ 1,2 ] ; Yang, LC (Yang, Lichun)[ 1,2 ] ; Liu, JW (Liu, Jiangwen)[ 1,2 ] ; Liu, J (Liu, Jun)[ 1,2 ] ; Wang, Y (Wang, Ying)[ 3 ] ; Luo, ZT (Luo, Zhengtang)[ 4 ] ; Ying, HJ (Ying, Hangjun)[ 1 ] ...更多内容
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ACS APPLIED MATERIALS & INTERFACES
卷: 12 期: 7 页: 8240-8248
DOI: 10.1021/acsami.9b20922
出版年: FEB 19 2020
文献类型:Article
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摘要
Anodes made of molybdenum trioxide (MoO3) suffer from insufficient conductivity and low catalytic reactivity. Here, we demonstrate that by using a dealloying method, we were able to fabricate anode of Ti-doped MoO3 (Ti-MoO3), which exhibits high catalytic reactivity, along with enhanced rate performance and cycling stability. We found that after doping, interestingly, the Ti-MoO3 forms nanosheets and assembles into a micrometer-sized flowerlike morphology with enhanced interlayer distance. The density functional theory result has further concluded that the band gap of the Ti-doped anode has been reduced significantly, thus greatly enhancing the electronic conductivity. As a result, the structure maintains stability during the Li+ intercalation/deintercalation processes, which enhances the cycling stability and rate capability. This engineering strategy and one-step synthesis route opens up a new pathway in the design of anode materials.
关键词
作者关键词:molybdenum oxide; doping; NiTi; lithium-ion battery; anode
KeyWords Plus:ELECTROCHEMICAL PERFORMANCE; LOW-TEMPERATURE; ION BATTERIES; HIGH-CAPACITY; HIGH-ENERGY; LITHIUM; ALPHA-MOO3; STORAGE; DIFFUSION; NANOBELTS
作者信息
通讯作者地址: Yuan, B (通讯作者)
显示更多South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510640, Peoples R China.
通讯作者地址: Yuan, B (通讯作者)
显示更多South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510640, Peoples R China.
通讯作者地址: Wang, Y (通讯作者)
显示更多Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Rare Earth Resource Utilizat, Changchun 130022, Peoples R China.
通讯作者地址: Luo, ZT (通讯作者)
显示更多Hong Kong Univ Sci & Technol, Dept Chem & Biol Engn, Hong Kong 999077, Peoples R China.
地址:
显示更多[ 1 ] South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510640, Peoples R China
显示更多[ 2 ] South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510640, Peoples R China
显示更多[ 3 ] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Rare Earth Resource Utilizat, Changchun 130022, Peoples R China
显示更多[ 4 ] Hong Kong Univ Sci & Technol, Dept Chem & Biol Engn, Hong Kong 999077, Peoples R China
电子邮件地址:apsheng@scut.edu.cn; ywang_2012@ciac.ac.cn; keztluo@ust.hk
基金资助致谢
基金资助机构显示详情授权号
National Natural Science Foundation of China
51822104
51671088
21673220
National Natural Science Foundation of China
51621001
Training Program of Major Basic Research Project of Provincial Natural Science Foundation of Guangdong
2017B030308001
Hong Kong Research Grants Council
16204815
National Natural Science Foundation of China
N_HKUST607/17
Innovation and Technology Commission
ITC-CNERC14SC01
Jilin University
High Performance, Computing Center of Jilin Province
Network and Computing Center, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences
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出版商
AMER CHEMICAL SOC, 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
期刊信息
Impact Factor (影响因子): Journal Citation Reports
类别 / 分类
研究方向:Science & Technology - Other Topics; Materials Science
Web of Science 类别:Nanoscience & Nanotechnology; Materials Science, Multidisciplinary