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ABSTRACT

Polymeric form of graphitic carbon nitride (CN) has attracted much attention in recent years because of their performance as a support material of various reactions. Here, we report the fabrication of CN and gold nanoparticle-decorated CN system for electrochemical methanol oxidation process. The microscopic, optical, thermal, and surface properties of the synthesized materials have been analyzed using different characterization techniques. Both the synthesized materials were successfully used as electrocatalyst for methanol oxidation reaction under the alkaline media. The stability and the tolerance of the synthesized catalysts have been studied, in connection with the title reaction, on the basis of oxophilicity of the gold. The strong coordination between gold nanop旺财体育 and amine groups of CN facilitates the electron transfer from amine to metal, which makes the gold p旺财体育 more electron rich and consequently makes the Au-CN system more active for electrocatalytic methanol oxidation reaction.

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Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

The authors (SS, ND, VKP, SKG, and KM) acknowledge financial support from the Research Committee and the Faculty of Science of the University of Johannesburg. SS, ND, VKP, and SKG further acknowledge financial support from the Global Excellence and Stature fellowship from the University of Johannesburg.