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Composition-Controllable AuPt Alloy Catalysts for Electrooxidation of Formic Acid

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Abstract

AuPt alloy catalysts with various compositions have been successfully prepared simply by one-step co-reduction of Au and Pt precursors involving sodium citrate as stabilizer and reductant. XRD, TEM and EDX element mapping analysis confirmed that the resulting AuPt nanoparticles are single-phase alloys rather than random mixtures of tiny Au and Pt particles. Compared with Pt/C, alloying Au with Pt can effectively alter the kinetic process of formic acid oxidation, reducing the generation of CO-like intermediates. Au81Pt19 displays superior electrocatalytic activity and durability, ~11 times in the mass activity better than commercial Pt/C and may be of practical significance for the commercialization of direct formic acid fuel cell.

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Authors and Affiliations

  1. State Key Lab of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China

    Wen-Jin Shen, Ji-Long Sang, Ling Cai & Yong-Jun Li

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  1. Wen-Jin Shen
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  2. Ji-Long Sang
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  3. Ling Cai
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  4. Yong-Jun Li
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Correspondence to Yong-Jun Li.

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Published in Russian in Elektrokhimiya, 2018, Vol. 54, No. 7S, pp. S48–S56.

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Shen, WJ., Sang, JL., Cai, L. et al. Composition-Controllable AuPt Alloy Catalysts for Electrooxidation of Formic Acid. Russ J Electrochem 54, 809–816 (2018). https://doi.org/10.1134/S1023193518110071

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  • DOI: https://doi.org/10.1134/S1023193518110071

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