The methanol adsorption behavior on platinum/poly(2,5-dimethoxyaniline) composites for application in methanol sensing

Tang Kuei Chang, Chia Chin Chang, Ten Chin Wen

研究成果: Article同行評審

3 引文 斯高帕斯(Scopus)

摘要

The behavior of methanol adsorption on platinum/poly(2,5-dimethoxyaniline) (Pt/PDMA) composite is investigated using UV-vis spectroscopy (UV-vis) and open circuit potential (OCP). The results of scanning electron microscopy and energy dispersive spectroscopy are used to verify the uniform dispersion of Pt in PDMA. The Fourier transform infrared spectra and OCP results revealed that Pt particles interact with PDMA through the electron-rich nitrogen sites, influencing the oxidation state of PDMA. A model is proposed for the methanol adsorption on Pt particles which changes the interaction between Pt and PDMA. With the proposed model, methanol concentration can be discerned using potentiometric measurements. The results of this study can be applied to methanol sensors for direct methanol fuel cells.

原文English
頁(從 - 到)603-608
頁數6
期刊Journal of Power Sources
185
發行號2
DOIs
出版狀態Published - 2008 12月 1

All Science Journal Classification (ASJC) codes

  • 可再生能源、永續發展與環境
  • 能源工程與電力技術
  • 物理與理論化學
  • 電氣與電子工程

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