Ultra-Range Bimetallic Pt-Pd Nanospheres Deposited on Reduced Graphene Sheet as Efficient Electrocatalyst Towards Electrooxidation of Methanol

Kumar, G Sreenivasa and Reddy, N Ramamanohar and Sravani, B and Sarma, L Subramanyam and Reddy, T Veera and Madhavi, V and Reddy, S Adinarayana (2019) Ultra-Range Bimetallic Pt-Pd Nanospheres Deposited on Reduced Graphene Sheet as Efficient Electrocatalyst Towards Electrooxidation of Methanol. In: JOURNAL OF CLUSTER SCIENCE .

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Abstract

Direct methanol fuel cells (DMFCs) offers promising possibilities in meeting future energy needs in a most sustainable way. To electro oxidize methanol at anode of DMFCs, till date Pt and Pt-based materials were widely employed. To improve the utilization of precious metals it is highly desirable to disperse them on conductive carbon structures. Here, we synthesized ultra-range bimetallic platinum-palladium (Pt-Pd) nanospheres (NSs) with uniform dispersion on reduced graphene oxide (RGO) sheets by a simple hydrothermal method and studied their efficacies towards methanol oxidation reaction (MOR). From HR-TEM analysis, it was found that the synthesized bimetallic Pt-Pd NSs possess an average particles size of about 5 to 7 nm consistent with XRD data. The MOR electro catalytic activity of bimetallic PtPd-RGO NSs was higher compared to homemade mono metallic Pt-RGO, Pd-RGO catalysts and commercial E-tekPt/C.

Item Type:	Journal Article
Publication:	JOURNAL OF CLUSTER SCIENCE
Publisher:	SPRINGER/PLENUM PUBLISHERS
Additional Information:	Copyright of this article belongs to SPRINGER/PLENUM PUBLISHERS
Keywords:	Ultra-range bimetallic Pt-Pd NSs; RGO sheets; Electrocatalysis; Energy conversion
Department/Centre:	Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited:	13 Jan 2020 08:54
Last Modified:	13 Jan 2020 08:54
URI:	http://eprints.iisc.ac.in/id/eprint/64330

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