Mechanism of Sulfur Inclusion in Soft Gold Electrodeposited from the Thiosulfate-Sulfite Bath

T. Osaka, M. Kato, J. Sato, K. Yoshizawa, T. Homma, Y. Okinaka, O. Yoshioka

研究成果: Article査読

35 被引用数 (Scopus)

抄録

The hardness of the soft gold electrodeposited from the thiosulfate-sulfite mixed ligand with which we developed recently, has previously been found to increase with increasing sulfur content of the gold deposit. In the present study the mechanism of the sulfur inclusion was investigated by analyzing for sulfur gold deposits produced under various experimental conditions and also by observing weight gains resulting from the adsorption of sulfur-containing species on gold using the quartz crystal microbalance (QCM) technique. The results led us to conclude that the origin of the included sulfur is primarily the adsorbed Au(I)-thiosulfate species, (Au 2S 2O 3) ads, formed as an intermediate in the gold deposition reaction.

本文言語English
ページ(範囲)C659-C662
ジャーナルJournal of the Electrochemical Society
148
10
DOI
出版ステータスPublished - 2001 10 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

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