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Title: Coaxial Carbon Nanotube Supported TiO 2@MoO 2@Carbon Core–Shell Anode for Ultrafast and High-Capacity Sodium Ion Storage

Abstract

The sluggish kinetic in electrode materials is one of the critical challenges in achieving high-power sodium ion storage. We report a coaxial core-shell nanostructure composed of carbon nanotube (CNT) as the core and TiO 2@MoO 2@C as shells for a hierarchically nanoarchitectured anode for improved electrode kinetics. The 1D tubular nanostructure can effectively reduce ion diffusion path, increase electrical conductivity, accommodate the stress due to volume change upon cycling, and provide additional interfacial active sites for enhanced charge storage and transport properties. Significantly, a synergistic effect between TiO 2 and MoO 2 nanostructures is investigated through ex-situ solid state nuclear magnetic resonance. Furthermore, the electrode exhibits a good rate capability (150 mAh g –1 at 20 A g –1) and superior cycling stability with a reversibly capacity of 175 mAh g –1 at 10 A g –1 for over 8000 cycles.

Authors:
 [1];  [2];  [3]; ORCiD logo [2];  [4];  [5];  [5];  [6]; ORCiD logo [3]
  1. Shanghai Jiao Tong Univ., Shanghai (China); Boise State Univ., Boise, ID (United States)
  2. Florida State Univ., Tallahassee, FL (United States)
  3. Boise State Univ., Boise, ID (United States)
  4. Argonne National Lab. (ANL), Lemont, IL (United States)
  5. Shanghai Jiao Tong Univ., Shanghai (China)
  6. Shanghai Jiao Tong Univ., Shanghai (China); Zhejiang Natrium Energy Inc., Shaoxing (China)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
National Basic Research Program of China; National Science Foundation (NSF); National Natural Science Foundation of China (NNSFC); USDOE
OSTI Identifier:
1513760
Grant/Contract Number:  
[AC02-06CH11357]
Resource Type:
Accepted Manuscript
Journal Name:
ACS Nano
Additional Journal Information:
[ Journal Volume: 13; Journal Issue: 1]; Journal ID: ISSN 1936-0851
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; anode; hierarchical nanoarchitecture; high rate; long cycle life; sodium ion storage

Citation Formats

Ma, Chunrong, Li, Xiang, Deng, Changjian, Hu, Yan -Yan, Lee, Sungsik, Liao, Xiao -Zhen, He, Yu -Shi, Ma, Zi -Feng, and Xiong, Hui. Coaxial Carbon Nanotube Supported TiO2@MoO2@Carbon Core–Shell Anode for Ultrafast and High-Capacity Sodium Ion Storage. United States: N. p., 2018. Web. doi:10.1021/acsnano.8b07811.
Ma, Chunrong, Li, Xiang, Deng, Changjian, Hu, Yan -Yan, Lee, Sungsik, Liao, Xiao -Zhen, He, Yu -Shi, Ma, Zi -Feng, & Xiong, Hui. Coaxial Carbon Nanotube Supported TiO2@MoO2@Carbon Core–Shell Anode for Ultrafast and High-Capacity Sodium Ion Storage. United States. doi:10.1021/acsnano.8b07811.
Ma, Chunrong, Li, Xiang, Deng, Changjian, Hu, Yan -Yan, Lee, Sungsik, Liao, Xiao -Zhen, He, Yu -Shi, Ma, Zi -Feng, and Xiong, Hui. Fri . "Coaxial Carbon Nanotube Supported TiO2@MoO2@Carbon Core–Shell Anode for Ultrafast and High-Capacity Sodium Ion Storage". United States. doi:10.1021/acsnano.8b07811. https://www.osti.gov/servlets/purl/1513760.
@article{osti_1513760,
title = {Coaxial Carbon Nanotube Supported TiO2@MoO2@Carbon Core–Shell Anode for Ultrafast and High-Capacity Sodium Ion Storage},
author = {Ma, Chunrong and Li, Xiang and Deng, Changjian and Hu, Yan -Yan and Lee, Sungsik and Liao, Xiao -Zhen and He, Yu -Shi and Ma, Zi -Feng and Xiong, Hui},
abstractNote = {The sluggish kinetic in electrode materials is one of the critical challenges in achieving high-power sodium ion storage. We report a coaxial core-shell nanostructure composed of carbon nanotube (CNT) as the core and TiO2@MoO2@C as shells for a hierarchically nanoarchitectured anode for improved electrode kinetics. The 1D tubular nanostructure can effectively reduce ion diffusion path, increase electrical conductivity, accommodate the stress due to volume change upon cycling, and provide additional interfacial active sites for enhanced charge storage and transport properties. Significantly, a synergistic effect between TiO2 and MoO2 nanostructures is investigated through ex-situ solid state nuclear magnetic resonance. Furthermore, the electrode exhibits a good rate capability (150 mAh g–1 at 20 A g–1) and superior cycling stability with a reversibly capacity of 175 mAh g–1 at 10 A g–1 for over 8000 cycles.},
doi = {10.1021/acsnano.8b07811},
journal = {ACS Nano},
number = [1],
volume = [13],
place = {United States},
year = {2018},
month = {12}
}

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