Voltammetric Study of the Electrocatalytic Oxidation of Formaldehyde on Pt-Pd Co-catalyst Supported on Reduced Graphene Oxide

Galal Ahmed; Hassan Hagar K.; Atta Nada F.

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Voltammetric Study of the Electrocatalytic Oxidation of Formaldehyde on Pt-Pd Co-catalyst Supported on Reduced Graphene Oxide

机译：Voltammetric Study of the Electrocatalytic Oxidation of Formaldehyde on Pt-Pd Co-catalyst Supported on Reduced Graphene Oxide

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Electrocatalysis on chemically converted graphene and decorated with Pt-Pd mixed-catalyst (CCG/Pt-Pd) is described. Graphene sheets were chemically synthesizeed via microwave-assisted method and modified with Pt-Pd mixed-catalyst that was formed electrochemically. The hybrid layer, CCG/Pt-Pd displayed current oscillations for the electro-oxidation of formaldehyde. Several factors influence both the number of oscillation in current peaks and their frequencies such as formaldehyde concentration, catalyst loading, potential scan rate and window, and temperature. CCG/Pt-Pd has high electrocatalytic activity toward formaldehyde conversion and increased oscillations were obtained at lower concentrations. Apparent activation energy for the oxidation process wasE(a), of 6.29 kJ.mol(-1).

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《Electroanalysis》 |2020年第12期|2733-2744|共12页
作者
Galal Ahmed; Hassan Hagar K.; Atta Nada F.;
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作者单位

Cairo Univ, Fac Sci, Dept Chem, Giza 12613, Egypt;

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正文语种英语
中图分类电化学、电解、磁化学;
关键词
Reduced graphene oxide; Pt-Pd co-catalyst; formaldehyde conversion; current oscillations; Catalyst poisoning;

Voltammetric Study of the Electrocatalytic Oxidation of Formaldehyde on Pt-Pd Co-catalyst Supported on Reduced Graphene Oxide

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