Preparation of Pt/CNT Thin-Film Electrodes by Electrochemical Potential Pulse Deposition for Methanol Oxidation

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Emilia Morallón¹  David Salinas-Torres¹  Jose Quintero-Ruiz¹  Javier Quílez-Bermejo²  Ramiro Ruiz-Rosas²  Diego Cazorla-Amorós² 

[1] Departamento de Química Física and Instituto de Materiales, Universidad de Alicante, Ap. 99, 03080 Alicante, Spain;Departamento de Química Inórganica and Instituto de Materiales, Universidad de Alicante, Ap. 99, 03080 Alicante, Spain;

关键词: potential pulse deposition;    carbon nanotube;    platinum nanoparticle;    methanol oxidation;   

DOI  :  10.3390/c7020032

来源: DOAJ

【 摘 要 】

High-quality performance of catalysts is increasingly required to meet industry exigencies. However, chemical synthesis is often insufficient to maximize the potential properties of the catalysts. On the other hand, electrochemical synthesis has arisen as a promising alternative to overcome these limitations and provide precise control in the preparation of catalysts. In this sense, this work involved the well-controlled electrochemical synthesis of a catalyst based on platinum nanoparticle deposition on carbon nanotubes using only electrochemical treatments. Thin films of functionalized carbon nanotubes were cast onto the surface of a glassy carbon electrode using potential pulsed electrodeposition, resulting in a better distribution of the carbon nanotubes on the electrode when comparing with traditional methods. Then, platinum nanoparticles were electrodeposited on the carbon nanotube-modified electrode. To check the performance of the catalyst and the relevance of the electrochemical synthesis treatments, the samples were analyzed as electrocatalysts towards methanol electrooxidation, showing an important improvement in the catalytic activity in comparison with electrodes that were prepared by traditional methodologies.

【 授权许可】

Unknown