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Redox Targeting of Anatase TiO2 for Redox Flow Lithium-Ion Batteries

  Anatase TiO2 is an extensively studied anode material for lithium-ion batteries because of its superior capability of storing Li+ electrochemically. Here reversible lithium storage of TiO2 is achieved chemically using redox targeting reactions. In the presence of a pair of redox mediators, bis(pen... Full description

Journal Title: Advanced Energy Materials Oct 2014, Vol.4(15)
Main Author: Pan, Feng
Other Authors: Yang, Jing , Huang, Qizhao , Wang, Xingzhu , Huang, Hui , Wang, Qing
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 16146832 ; E-ISSN: 16146840 ; DOI: 10.1002/aenm.201400567
Link: http://search.proquest.com/docview/1617157102/?pq-origsite=primo
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title: Redox Targeting of Anatase TiO2 for Redox Flow Lithium-Ion Batteries
format: Article
creator:
  • Pan, Feng
  • Yang, Jing
  • Huang, Qizhao
  • Wang, Xingzhu
  • Huang, Hui
  • Wang, Qing
subjects:
  • Lithium
  • Phase Transitions
  • Batteries
  • Spectrum Analysis
ispartof: Advanced Energy Materials, Oct 2014, Vol.4(15)
description:   Anatase TiO2 is an extensively studied anode material for lithium-ion batteries because of its superior capability of storing Li+ electrochemically. Here reversible lithium storage of TiO2 is achieved chemically using redox targeting reactions. In the presence of a pair of redox mediators, bis(pentamethylcyclopentadienyl)cobalt (CoCp* 2) and cobaltocene (CoCp2) in an electrolyte, TiO2 and its lithiated form LixTiO2 can be reduced and oxidized by CoCp* 2 and CoCp2 +, respectively, which accompany Li+ insertion and extraction, albeit without attaching the TiO2 onto the electrode. The reversible chemical lithiation/delithiation and the involved phase transitions are unambiguously confirmed using density functional theory (DFT) calculations, UV-vis spectroscopy, X-ray photoelectron spectoscopy (XPS), and Raman spectroscopy. A redox flow lithium-ion battery (RFLB) half-cell is assembled and evaluated,...
language: eng
source:
identifier: ISSN: 16146832 ; E-ISSN: 16146840 ; DOI: 10.1002/aenm.201400567
fulltext: fulltext
issn:
  • 16146832
  • 1614-6832
  • 16146840
  • 1614-6840
url: Link


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subjectLithium ; Phase Transitions ; Batteries ; Spectrum Analysis
description  Anatase TiO2 is an extensively studied anode material for lithium-ion batteries because of its superior capability of storing Li+ electrochemically. Here reversible lithium storage of TiO2 is achieved chemically using redox targeting reactions. In the presence of a pair of redox mediators, bis(pentamethylcyclopentadienyl)cobalt (CoCp* 2) and cobaltocene (CoCp2) in an electrolyte, TiO2 and its lithiated form LixTiO2 can be reduced and oxidized by CoCp* 2 and CoCp2 +, respectively, which accompany Li+ insertion and extraction, albeit without attaching the TiO2 onto the electrode. The reversible chemical lithiation/delithiation and the involved phase transitions are unambiguously confirmed using density functional theory (DFT) calculations, UV-vis spectroscopy, X-ray photoelectron spectoscopy (XPS), and Raman spectroscopy. A redox flow lithium-ion battery (RFLB) half-cell is assembled and evaluated,...
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titleRedox Targeting of Anatase TiO2 for Redox Flow Lithium-Ion Batteries
description  Anatase TiO2 is an extensively studied anode material for lithium-ion batteries because of its superior capability of storing Li+ electrochemically. Here reversible lithium storage of TiO2 is achieved chemically using redox targeting reactions. In the presence of a pair of redox mediators, bis(pentamethylcyclopentadienyl)cobalt (CoCp* 2) and cobaltocene (CoCp2) in an electrolyte, TiO2 and its lithiated form LixTiO2 can be reduced and oxidized by CoCp* 2 and CoCp2 +, respectively, which accompany Li+ insertion and extraction, albeit without attaching the TiO2 onto the electrode. The reversible chemical lithiation/delithiation and the involved phase transitions are unambiguously confirmed using density functional theory (DFT) calculations, UV-vis spectroscopy, X-ray photoelectron spectoscopy (XPS), and Raman spectroscopy. A redox flow lithium-ion battery (RFLB) half-cell is assembled and evaluated,...
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abstract  Anatase TiO2 is an extensively studied anode material for lithium-ion batteries because of its superior capability of storing Li+ electrochemically. Here reversible lithium storage of TiO2 is achieved chemically using redox targeting reactions. In the presence of a pair of redox mediators, bis(pentamethylcyclopentadienyl)cobalt (CoCp* 2) and cobaltocene (CoCp2) in an electrolyte, TiO2 and its lithiated form LixTiO2 can be reduced and oxidized by CoCp* 2 and CoCp2 +, respectively, which accompany Li+ insertion and extraction, albeit without attaching the TiO2 onto the electrode. The reversible chemical lithiation/delithiation and the involved phase transitions are unambiguously confirmed using density functional theory (DFT) calculations, UV-vis spectroscopy, X-ray photoelectron spectoscopy (XPS), and Raman spectroscopy. A redox flow lithium-ion battery (RFLB) half-cell is assembled and evaluated,...
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