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author:

Hong, Zhensheng (Hong, Zhensheng.) [1] | Zhou, Kaiqiang (Zhou, Kaiqiang.) [2] | Zhang, Junwen (Zhang, Junwen.) [3] | Huang, Zhigao (Huang, Zhigao.) [4] | Wei, Mingdeng (Wei, Mingdeng.) [5] (Scholars:魏明灯)

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EI Scopus SCIE

Abstract:

With the aim of enhancing the electrochemical kinetics and capacity of the TiO2 electrode for Na ion batteries (NIBs), we have designed a hybrid material of carbon-coated TiO2 mesocrystals anchored on reduced graphene oxide (TiO2@C-rGO). Such hybrid nanostructures are fabricated through a facile one-step route including in situ growth of oriented self assembly of TiO2 mesocrystals on GO. TiO2@C-rGO possesses a very large surface area (279 m(2) g(-1)), mesoporous nature, and single-crystal-like structure. It is also found that the capacity of TiO2 electrode for NIBs could be improved by carbon coating at a low current rate, but pure TiO2 shows better rate performance than that of TiO2@C. Remarkably, the enhanced electrochemical kinetics and large capacity can be simultaneously achieved by designing,hybrid material. The hybrid nanostructures exhibit a highly reversible capacity of 300 mAh g(-1) at 100 mA g(-1), superior rate capability, and long-term cycling stability (a stable capacity of 159 mAh g-1- can be maintained after 1000 cycles at 1 A g(-1)). The superior Na ion storage of TiO2@C-rGO is largely ascribed to the robust architecture of well-dispersed carbon-coated mesoporous TiO2 mesocrystals anchored on conductive graphene network, leading to enhanced electrochemical kinetics and offering enough active sites for the Na ion to locate.

Keyword:

Community:

  • [ 1 ] [Hong, Zhensheng]Fujian Normal Univ, Coll Phys & Energy, Fujian Prov Key Lab Quantum Manipulat & New Energ, Fuzhou 350117, Fujian, Peoples R China
  • [ 2 ] [Zhou, Kaiqiang]Fujian Normal Univ, Coll Phys & Energy, Fujian Prov Key Lab Quantum Manipulat & New Energ, Fuzhou 350117, Fujian, Peoples R China
  • [ 3 ] [Zhang, Junwen]Fujian Normal Univ, Coll Phys & Energy, Fujian Prov Key Lab Quantum Manipulat & New Energ, Fuzhou 350117, Fujian, Peoples R China
  • [ 4 ] [Huang, Zhigao]Fujian Normal Univ, Coll Phys & Energy, Fujian Prov Key Lab Quantum Manipulat & New Energ, Fuzhou 350117, Fujian, Peoples R China
  • [ 5 ] [Hong, Zhensheng]Fujian Prov Collaborat Innovat Ctr Optoelect Semi, Xiamen 361005, Peoples R China
  • [ 6 ] [Zhou, Kaiqiang]Fujian Prov Collaborat Innovat Ctr Optoelect Semi, Xiamen 361005, Peoples R China
  • [ 7 ] [Huang, Zhigao]Fujian Prov Collaborat Innovat Ctr Optoelect Semi, Xiamen 361005, Peoples R China
  • [ 8 ] [Zhang, Junwen]Kuang Chi Inst Adv Technol, Shenzhen Key Lab Transformat Opt & Spatial Modula, Shenzhen 518057, Guangdong, Peoples R China
  • [ 9 ] [Wei, Mingdeng]Fuzhou Univ, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350002, Fujian, Peoples R China

Reprint 's Address:

  • 魏明灯

    [Hong, Zhensheng]Fujian Normal Univ, Coll Phys & Energy, Fujian Prov Key Lab Quantum Manipulat & New Energ, Fuzhou 350117, Fujian, Peoples R China;;[Hong, Zhensheng]Fujian Prov Collaborat Innovat Ctr Optoelect Semi, Xiamen 361005, Peoples R China;;[Wei, Mingdeng]Fuzhou Univ, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350002, Fujian, Peoples R China

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Source :

CRYSTAL GROWTH & DESIGN

ISSN: 1528-7483

Year: 2016

Issue: 11

Volume: 16

Page: 6605-6612

4 . 0 5 5

JCR@2016

3 . 2 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

ESI HC Threshold:235

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 21

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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