Article ID Journal Published Year Pages File Type
1276795 International Journal of Hydrogen Energy 2016 12 Pages PDF
Abstract

•Biochar from cellulose is used as a carbon support of CuRu@Pt core-shell nanoparticles.•Nanocatalyst supported onto the cellulose biochar is efficient in the methanol electro-oxidation.•Acid-treated cellulose derived biochar shows better performance than activated carbon.

In the present study, the biochar produced by fast pyrolysis at 350 °C of untreated and acid-treated cellulose are evaluated as supports of CuRu@Pt core-shell nanoparticles (2.9–3.5 nm) for the electro-oxidation of methanol in acid media. Carbon materials and the supported core-shell nanoparticles were characterized by physicochemical and electrochemical techniques. Cyclic voltammetry and chronoamperometry were used to study the activity of the catalysts. The nanocatalyst supported onto the biochar from acid-treated cellulose exhibited high electroactive surface area (38 m2/g) and high performance in the methanol electro-oxidation reaction, reaching TON values of 0.151 molec. (sites s)−1 at 0.5 V. This contribution provides a new approach for the utilization of an inexpensive carbon material precursor as cellulose to design alternative catalytic systems and their emerging applications in electrocatalysis.

Related Topics
Physical Sciences and Engineering Chemistry Electrochemistry
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