An innovative catalyst of PdNiP nanosphere deposited PEDOT:PSS/rGO hybrid material as an efficient electrocatalyst for alkaline urea oxidation

Lera, IL and Khasnabis, S and Wangatia, LM and Femi, OE and Ramamurthy, PC (2022) An innovative catalyst of PdNiP nanosphere deposited PEDOT:PSS/rGO hybrid material as an efficient electrocatalyst for alkaline urea oxidation. In: Polymer Bulletin .

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Abstract

Efficient and low-cost materials to generate electrical energy from small organic materials are highly demanded for a large-scale commercialization of direct urea fuel cells. The purpose of this work is to improve the electrochemical performance of nickel phosphide (Ni) through palladium (Pd) doping via the facile solvothermal method and dispersing the obtained palladium nickel phosphide (PdNiP) on poly(3,4-ethylenedioxythiophene): poly(styrene sulfonate)/reduced graphene oxide (PEDOT:PSS/rGO) support material via a simple ultrasonic process. The electrochemical activities of Pd doped NiP and PdNiP@PEDOT:PSS/rGO electrodes toward urea electrooxidation were tested using cyclic voltammetry (CV). The CV test reveals the significant efficiency improvement in nickel phosphide (NiP) upon Pd doping, and further improvement was achieved when obtained PdNiP dispersed on PEDOT:PSS/rGO toward alkaline urea oxidation. Since PdNiP@PEDOT:PSS/rGO remarkably outperformed NiP and PdNiP, it is a promising novel material for alkaline urea oxidation in a direct urea fuel cell.

Item Type:	Journal Article
Publication:	Polymer Bulletin
Publisher:	Springer Science and Business Media Deutschland GmbH
Additional Information:	The copyright for this article belongs to the Springer Science and Business Media Deutschland GmbH.
Keywords:	Conducting polymers; Costs; Cyclic voltammetry; Electrocatalysts; Fuel cells; Graphene; Hybrid materials; Metabolism; Nickel compounds; Palladium compounds; Styrene; Urea, Alkalines; Electrocatalyst; Electrooxidations; Ethylenedioxythiophenes; Nickel phosphide; Palladium doping; Palladium-nickel; Poly(styrene sulfonate); Reduced graphene oxides; Urea fuels, Electrooxidation
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	08 Jul 2022 09:58
Last Modified:	08 Jul 2022 09:58
URI:	https://eprints.iisc.ac.in/id/eprint/74330

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