Platinum Microelectrodes with Unique High Surface Areas

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• 作者：Joanne M. Elliott ; Peter R. Birkin ; Philip N. Bartlett ; and George S. Attard
• 刊名：Langmuir
• 出版年：1999
• 出版时间：October 26, 1999
• 年：1999
• 卷：15
• 期：22
• 页码：7411 - 7415
• 全文大小：144K
• 年卷期：v.15,no.22(October 26, 1999)
• ISSN：1520-5827

文摘

Nanostructured platinum films were electrodeposited onto microelectrodes from an hexagonal lyotropicliquid crystalline plating mixture. Cyclic voltammetry in dilute sulfuric acid and copper underpotentialdeposition confirmed that the resulting platinum films had high surface areas (with roughness factors ofca. 210) as a direct consequence of their electrochemically accessible nanostructure. The microelectrodeswere shown to combine a high real surface area with efficient mass transport characteristics. Thiscombination of properties is unique and may be of significance to the fields of electrochemistry andelectroanalysis.