Facile synthesis of well dispersed Pd nanoparticles on reduced graphene oxide for electrocatalytic oxidation of formic acid

• Type: Article in International Scientific Journal
• Date: 2017

Authors

Krishna, R (Author) Other; Diana M Fernandes (Author) FCUP; Marinoiu, A (Author) Other; ventura, j. (Author) FCUP; Cristina Freire (Author) FCUP; Titus, E (Author) Other

Journal

Title: International Journal of Hydrogen Energy

Vol. 42 No. 19

ISSN: 0360-3199

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 19 Citations

Scopus - 19 Citations

Other information

Authenticus ID: P-00N-40V

DOI: 10.1016/j.ijhydene.2017.04.263

Abstract (EN): In present study, we report a facile synthesis of crystalline, small size Pd nanoparticles (NPs) on reduced graphene oxide (RGO) abbreviated as Pd/RGO for electrocatalytic oxidation of formic acid (FA). Here, first graphene oxide (GO) was reduced by the green method using l-ascorbic acid and citric acid and further Pd NPs were decorated on RGO by a facile method without using any reducing agents. The reduction of GO to RGO and synthesis of Pd NPs was confirmed by the X-ray diffraction (XRD) and X-ray photoelectrons (XPS) techniques. Surface morphology of Pd/RGO nanocomposite was evaluated by the scanning electron microscopy (SEM) and transmission electron microscopy (TEM) techniques. The electrocatalytic behavior of Pd/RGO nanocomposite was tested by using of cyclic voltammetric (CV) technique for electro-oxidation of FA in mixed solution of 0.5 M HCOOH + 0.5 H2SO4 at RT. Results shows that the higher electrocatalytic activity of Pd/RGO nano composite compare to Pd NPs.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8