Synthesis of silver nanoparticles based on reduced graphene oxide as anelectrocatalyst for cathod side of fuel cells

Document Type : Original Article

Authors

1 Department of Physical Chemistry, Faculty of Science, University of Maragheh, Maragheh, Iran

2 Department of Physical Chemistry and Nano Chemistry, Faculty of Science, University of Maragheh, Maragheh, Iran

Abstract

In the present work, NRGO and Ag/NRGO catalysts were synthesized using eco-friendly reducing agents. Graphene oxide was prepared as a substrate by electrochemical method. Then, using urea as nitrogen source, it was converted into graphene nitrogen dop under a temperature of 160 ° C and used as a silver bed. The presence of nitrogen in the graphene structure results in a better dispersion of the silver metal on graphene and prevents the accumulation of them. To investigate the catalytic behavior of electrocatalysts, linear scaling voltammetry test was used in alkaline medium for oxygen regeneration reaction. Ag / NRGO showed better catalytic behavior than the NRGO as the bare substrate. It also showed better kinetic behavior than NRGO.

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Applied Chemistry Today
Volume 14, Issue 52
September 2019
Pages 51-62

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