論文

査読有り
2013年4月

"Indirect Modification" of Glassy Carbon with Gold Nanoparticles Using Nonconducting Support Materials

ELECTROANALYSIS
  • Daisuke Nakashima
  • ,
  • Frank Marken
  • ,
  • Munetaka Oyama

25
4
開始ページ
975
終了ページ
982
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1002/elan.201200557
出版者・発行元
WILEY-V C H VERLAG GMBH

Electrochemical measurements using nonconducting support materials, such as paper and cotton gauze, for modifying glassy carbon (GC) with gold nanoparticles (AuNPs) are described. After a seed-mediated growth modification of AuNPs on Kimwipes, a AuNP-Kimwipes-modified GC electrode that was fabricated by simply fixing a piece of AuNP-modified Kimwipes on a GC electrode surface showed almost reversible cyclic voltammetric responses for the oxidation of Fe(CN)64 in 0.1M phosphate buffer solution (pH7.0) even when the GC surface was not polished before fixing. The electrochemical impedance results also indicated the significant effect of the AuNP-modified Kimwipes on reducing the charge transfer resistance. Similar effects were observed for AuNP-modified cotton gauze, whose characteristics were the partial coverage of a GC surface, and, for the electrode in that a piece of untreated Kimwipes was bound between AuNP-modified Kimwipes and a GC electrode surface. On the basis of such partial or remote effects of AuNPs together with other electrochemical results, plausible mechanisms to promote the electron transfer reaction of Fe(CN)64 by AuNPs are discussed. In addition, as a specific phenomenon in the present modified electrodes, the adsorption of Fe(CN)64 with the presence of AuNPs is described.

リンク情報
DOI
https://doi.org/10.1002/elan.201200557
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000317677400022&DestApp=WOS_CPL
URL
http://www.scopus.com/inward/record.url?eid=2-s2.0-84876313558&partnerID=MN8TOARS
URL
http://orcid.org/0000-0001-7422-9914
ID情報
  • DOI : 10.1002/elan.201200557
  • ISSN : 1040-0397
  • ORCIDのPut Code : 13306657
  • SCOPUS ID : 84876313558
  • Web of Science ID : WOS:000317677400022

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