論文

2015年5月

Arrangement and Dynamics of Diamine, Etheric, and Tetraalkylammonium Intercalates within Graphene or Graphite Oxide Galleries by H-2 NMR

JOURNAL OF PHYSICAL CHEMISTRY C
  • Kazuma Gotoh
  • ,
  • Chika Sugimoto
  • ,
  • Ryohei Morita
  • ,
  • Tatsuya Miyatou
  • ,
  • Motohiro Mizuno
  • ,
  • Weekit Sirisaksoontorn
  • ,
  • Michael M. Lerner
  • ,
  • Hiroyuki Ishida

119
21
開始ページ
11763
終了ページ
11770
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1021/acs.jpcc.5b03016
出版者・発行元
AMER CHEMICAL SOC

Ternary graphite intercalation compounds (GICs), which consist of graphite, alkali Metal (Li; Na, cations, and organic cointercalates such as ethylehediamine (en) or tetrahydrofuran (thf), are useful precursors to graphene-based materials and tetraalkylammonium GICs. This study investigates the gallery arrangements and intercalate dynamics of the deuterated en(d4), thf(d8), piperazine(d10), or 1,4-diazabicyclo[2.2.2]octane(dabco)(d12) in ternary GICs containing Na+ or K+ cations using XRD and solid state Na-23 and H-2 NMR line-shape analyses. An en(d4)-graphite oxide (GO) intercalation compound and the trihexylmethyl(d3)-ammonium (thma) GIC were also prepared and evaluated by XRD and NMR. The H-2 NMR spectra exhibit a narrow peak ascribed to intercalates undergoing isotropic rotation and a broad powder pattern ascribed to intercalates.in a rigid state or undergoing uniaxial rotations. The thma intercalates in thrna(d3)-GIC and the en(d4) intercalates in en(d4)-GO are relatively mobile and can diffuse; this may arise because there are no alkali metal cations in the galleries. The molecular dynamics as well as the synthetic challenges presented by some GICs are explained in terms of different affinities of alkali metal cations to the cointercalates.

リンク情報
DOI
https://doi.org/10.1021/acs.jpcc.5b03016
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000355495600055&DestApp=WOS_CPL
URL
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84930656030&origin=inward
ID情報
  • DOI : 10.1021/acs.jpcc.5b03016
  • ISSN : 1932-7447
  • SCOPUS ID : 84930656030
  • Web of Science ID : WOS:000355495600055

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