In situ growth enabling ideal graphene encapsulation upon mesocrystalline MTiO3 (M = Ni, Co, Fe) nanorods for stable lithium storage

Jijian Xu; Wei Ding; Wenli Zhao; Wei Zhao; Zhanglian Hong; Fuqiang Huang

doi:10.1021/acsenergylett.7b00018

In situ growth enabling ideal graphene encapsulation upon mesocrystalline MTiO₃ (M = Ni, Co, Fe) nanorods for stable lithium storage

Jijian Xu, Wei Ding, Wenli Zhao, Wei Zhao, Zhanglian Hong, Fuqiang Huang^*

^*Corresponding author for this work

Physical Sciences and Engineering

Research output: Contribution to journal › Article › peer-review

48 Scopus citations

Abstract

Ilmenite-type MTiO₃ (M = Ni, Co, Fe) with high theoretical specific capacity, wide availability, and low cost is a potential anode material for lithium storage, but its poor cycling stability is fatal. Here, we propose a general material design strategy to encapsulate MTiO₃ nanorods with in situ grown few-layer graphene through a facile plasma-enhanced CVD route for stable lithium storage. Under the reductive plasma-enhanced CVD atmosphere, partially reduced Ni served as a self-catalysis substrate for in situ graphene growth, resulting in the perfect encapsulation of NiTiO₃ nanorods with few-layer graphene. The graphene coating helps to retain the electrical connectivity during cycling, which is beneficial for better cycling performance and rate capability. Stable cycling (500 cycles at 0.2 A g^-1; 83% capacity retention) is achieved with the NiTiO₃@graphene nanorods.

Original language	English (US)
Pages (from-to)	659-663
Number of pages	5
Journal	ACS Energy Letters
Volume	2
Issue number	3
DOIs	https://doi.org/10.1021/acsenergylett.7b00018
State	Published - Mar 10 2017

Bibliographical note

Funding Information:
This work was financially supported by the National Key Research and Development Program (Grant No. 2016YFB0901600), NSF of China (Grant Nos. 61376056, 11404358), and the Science and Technology Commission of Shanghai (Grant No. 16JC1401700, 14520722000).

Publisher Copyright:
© 2017 American Chemical Society.

ASJC Scopus subject areas

Chemistry (miscellaneous)
Renewable Energy, Sustainability and the Environment
Fuel Technology
Energy Engineering and Power Technology
Materials Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1021/acsenergylett.7b00018

Cite this

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title = "In situ growth enabling ideal graphene encapsulation upon mesocrystalline MTiO3 (M = Ni, Co, Fe) nanorods for stable lithium storage",

abstract = "Ilmenite-type MTiO3 (M = Ni, Co, Fe) with high theoretical specific capacity, wide availability, and low cost is a potential anode material for lithium storage, but its poor cycling stability is fatal. Here, we propose a general material design strategy to encapsulate MTiO3 nanorods with in situ grown few-layer graphene through a facile plasma-enhanced CVD route for stable lithium storage. Under the reductive plasma-enhanced CVD atmosphere, partially reduced Ni served as a self-catalysis substrate for in situ graphene growth, resulting in the perfect encapsulation of NiTiO3 nanorods with few-layer graphene. The graphene coating helps to retain the electrical connectivity during cycling, which is beneficial for better cycling performance and rate capability. Stable cycling (500 cycles at 0.2 A g-1; 83% capacity retention) is achieved with the NiTiO3@graphene nanorods.",

author = "Jijian Xu and Wei Ding and Wenli Zhao and Wei Zhao and Zhanglian Hong and Fuqiang Huang",

note = "Funding Information: This work was financially supported by the National Key Research and Development Program (Grant No. 2016YFB0901600), NSF of China (Grant Nos. 61376056, 11404358), and the Science and Technology Commission of Shanghai (Grant No. 16JC1401700, 14520722000). Publisher Copyright: {\textcopyright} 2017 American Chemical Society.",

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AU - Xu, Jijian

AU - Ding, Wei

AU - Zhao, Wenli

AU - Zhao, Wei

AU - Hong, Zhanglian

AU - Huang, Fuqiang

N1 - Funding Information: This work was financially supported by the National Key Research and Development Program (Grant No. 2016YFB0901600), NSF of China (Grant Nos. 61376056, 11404358), and the Science and Technology Commission of Shanghai (Grant No. 16JC1401700, 14520722000). Publisher Copyright: © 2017 American Chemical Society.

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N2 - Ilmenite-type MTiO3 (M = Ni, Co, Fe) with high theoretical specific capacity, wide availability, and low cost is a potential anode material for lithium storage, but its poor cycling stability is fatal. Here, we propose a general material design strategy to encapsulate MTiO3 nanorods with in situ grown few-layer graphene through a facile plasma-enhanced CVD route for stable lithium storage. Under the reductive plasma-enhanced CVD atmosphere, partially reduced Ni served as a self-catalysis substrate for in situ graphene growth, resulting in the perfect encapsulation of NiTiO3 nanorods with few-layer graphene. The graphene coating helps to retain the electrical connectivity during cycling, which is beneficial for better cycling performance and rate capability. Stable cycling (500 cycles at 0.2 A g-1; 83% capacity retention) is achieved with the NiTiO3@graphene nanorods.

AB - Ilmenite-type MTiO3 (M = Ni, Co, Fe) with high theoretical specific capacity, wide availability, and low cost is a potential anode material for lithium storage, but its poor cycling stability is fatal. Here, we propose a general material design strategy to encapsulate MTiO3 nanorods with in situ grown few-layer graphene through a facile plasma-enhanced CVD route for stable lithium storage. Under the reductive plasma-enhanced CVD atmosphere, partially reduced Ni served as a self-catalysis substrate for in situ graphene growth, resulting in the perfect encapsulation of NiTiO3 nanorods with few-layer graphene. The graphene coating helps to retain the electrical connectivity during cycling, which is beneficial for better cycling performance and rate capability. Stable cycling (500 cycles at 0.2 A g-1; 83% capacity retention) is achieved with the NiTiO3@graphene nanorods.

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