Palladium phosphoselenide (PdPSe) � Reduced graphene oxide composite: A tri-functional electrocatalyst and a cathode catalyst for alkaline fuel cells

Sarkar, S and Patel, S and Mukherjee, D (2024) Palladium phosphoselenide (PdPSe) � Reduced graphene oxide composite: A tri-functional electrocatalyst and a cathode catalyst for alkaline fuel cells. In: Materials Today Sustainability, 25 .

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Abstract

Developing a new and efficient electrocatalyst is highly desirable for fundamental electrochemical energy applications such as fuel cells. In this work, we have introduced palladium phosphoselenide (PdPSe), a layer-type ternary material, as a tri-functional electrocatalyst in the three most fundamental electrochemical reactions, such as oxygen reduction reaction (ORR), hydrogen evolution reaction (HER), and oxygen evolution reaction (OER). To enhance the electrocatalytic activity and stability of the electrode material, reduced graphene oxide (rGO) is incorporated into the system by making a composite (rGO-PdPSe), which effectively reduces the overpotentials and increases the current densities for HER and OER. Moreover, in ORR, it turns into a four-electron pathway with comparable kinetics. Further, the composite material is applied in anion exchange membrane fuel cell application as a cathode catalyst. This composite's facile kinetics and robust performance suggests that ternary phosphoselenides based trifunctional electrocatalysts would be a promising material for large-scale application of clean energy conversion devices. © 2023 Elsevier Ltd

Item Type:	Journal Article
Publication:	Materials Today Sustainability
Publisher:	Elsevier Ltd
Additional Information:	The copyright for this article belongs to Elsevier Ltd .
Keywords:	Alkaline fuel cells; Cathodes; Electrolytic reduction; Graphene; Hydrogen; Ion exchange membranes; Oxygen, Anion-exchange membrane fuel cells; Cathode catalyst; Electrochemical energy; Energy applications; Hydrogen evolution reactions; Oxide composites; Oxygen reduction reaction; Palladium phosphoselenide; Reduced graphene oxides; Tri-functional electrocatalyst, Electrocatalysts
Department/Centre:	Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited:	01 Mar 2024 06:27
Last Modified:	01 Mar 2024 06:27
URI:	https://eprints.iisc.ac.in/id/eprint/83901

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