論文

査読有り
2011年8月

Nanosized Effect on Electronic/Local Structures and Specific Lithium-Ion Insertion Property in TiO2-B Nanowires Analyzed by X-ray Absorption Spectroscopy

CHEMISTRY OF MATERIALS
  • Toyoki Okumura
  • ,
  • Tomokazu Fukutsuka
  • ,
  • Asuki Yanagihara
  • ,
  • Yuki Orikasa
  • ,
  • Hajime Arai
  • ,
  • Zempachi Ogumi
  • ,
  • Yoshiharu Uchimoto

23
16
開始ページ
3636
終了ページ
3644
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1021/cm200902r
出版者・発行元
AMER CHEMICAL SOC

TiO2-B nanowires were prepared by hydrothermal reaction, and the nanosized effect on lithium-ion insertion was investigated by using X-ray absorption spectroscopy (XAS). On the basis of the results of 0 K-edge X-ray absorption near-edge structure (XANES) of TiO2-B with various particle sizes, it was suggested that the surface of TiO2-B has local and electronic structures being different from the bulk, and the band energy of surface of TiO2-B was lower than that of the bulk. The band vended structure, which is called the space charge layer (SCL), makes lithium-ion insertion in TiO2-B smooth because the local structure of the SCL is maintained during the lithium-ion insertion, which is shown by Ti K-edge extended X-ray absorption fine structure (EXAFS) spectroscopy. It is suggested that control of the SCL, that is the nanosized effect, is a new design concept for achieving higher rate capability.

リンク情報
DOI
https://doi.org/10.1021/cm200902r
J-GLOBAL
https://jglobal.jst.go.jp/detail?JGLOBAL_ID=201102260537849136
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000293758900010&DestApp=WOS_CPL
URL
http://www.scopus.com/inward/record.url?eid=2-s2.0-80051749341&partnerID=MN8TOARS
URL
http://orcid.org/0000-0002-1491-2647
ID情報
  • DOI : 10.1021/cm200902r
  • ISSN : 0897-4756
  • J-Global ID : 201102260537849136
  • ORCIDのPut Code : 42857366
  • SCOPUS ID : 80051749341
  • Web of Science ID : WOS:000293758900010

エクスポート
BibTeX RIS