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J Am Chem Soc. 2011 Sep 28;133(38):14876-9. doi: 10.1021/ja205747j. Epub 2011 Sep 7.

From HCOOH to CO at Pd electrodes: a surface-enhanced infrared spectroscopy study.

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  • 1Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials and Department of Chemistry, Fudan University, Shanghai, China.


The decomposition of HCOOH on Pd surfaces over a potential range of practical relevance to hydrogen production and fuel cell anode operation was probed by combining high-sensitivity in situ surface-enhanced IR spectroscopy with attenuated total reflection and thin-layer flow cell configurations. For the first time, concrete spectral evidence of CO(ad) formation has been obtained, and a new main pathway from HCOOH to CO(ad) involving the reduction of the dehydrogenation product of HCOOH (i.e., CO(2)) is proposed.

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