論文

査読有り
2005年

Ni K- and Au L(3)-edge XAFS of [Au(6)Ni(32)(CO)(44)](6-) and a study of its transformations in acetonitrile solutions

PHYSICA SCRIPTA
  • O. A. Belyakova
  • ,
  • Y. Kubozono
  • ,
  • S. Kashino
  • ,
  • Yu. L. Slovokhotov

T115
開始ページ
705
終了ページ
708
記述言語
英語
掲載種別
研究論文(学術雑誌)
出版者・発行元
IOP PUBLISHING LTD

Oxidation of the [Au(6)Ni(32)(CO)(44)](6-) cluster anion in acetonitrile solutions by air and by Me(3)NO has been monitored using Ni K- and Au L(III)-edge XAFS spectroscopy. EXAFS data for the pristine cluster correspond reasonably well to its known crystal structure and point to a formation of bimetallic Ni-Au nanoparticles in the oxidation products. Air oxidation of the acetonitrile solutions without additional oxidants/promoters goes very slowly whereas addition of Me(3)NO results in immediate precipitation. The nanoparticles formed upon the oxidation are suggested to have a core of gold atoms and an outer shell of nickel oxide.

リンク情報
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000204272100213&DestApp=WOS_CPL
ID情報
  • ISSN : 0031-8949
  • Web of Science ID : WOS:000204272100213

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