Efficient oxygen reduction activity on layered palladium phosphosulphide and its application in alkaline fuel cells

Sarkar, Sujoy and Patel, Shubham and Sampath, S (2020) Efficient oxygen reduction activity on layered palladium phosphosulphide and its application in alkaline fuel cells. In: JOURNAL OF POWER SOURCES, 445 .

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Abstract

Metal chalcogenides-based electrocatalysts have received considerable attention in recent years. Herein, a layer-type ternary chalcogenide compound, PdPS is proposed as an efficient oxygen reduction reaction electrocatalyst in alkaline medium. PdPS is semiconducting that crystallizes in orthorhombic symmetry. Improvement in conductivity of PdPS using reduced graphene oxide results in excellent electrocatalytic activity. The kinetics is followed by rotating (ring) disk electrode measurements and the composite electrocatalyst is found to be stable, efficient and methanol tolerant. The catalyst is further used as cathode in anion exchange membrane fuel cell and is shown to deliver power density comparable to Pt/C catalyst. In addition, this catalyst is also capable of water oxidation from alkaline solution with favorable electrochemical parameters.

Item Type:	Journal Article
Publication:	JOURNAL OF POWER SOURCES
Publisher:	ELSEVIER
Additional Information:	Copyright of this article belongs to ELSEVIER
Keywords:	Palladium phosphosulphide; Oxygen reduction reaction; Anion exchange membrane fuel cell; Electrocatalyst
Department/Centre:	Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited:	22 Jan 2020 06:42
Last Modified:	22 Jan 2020 06:42
URI:	http://eprints.iisc.ac.in/id/eprint/64319

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