FeCoNiMnCr High-Entropy Alloy Nanoparticle-Grafted NCNTs with Promising Performance in the Ohmic Polarization Region of Fuel Cells

Nandan, R and Raj, G and Nanda, KK (2022) FeCoNiMnCr High-Entropy Alloy Nanoparticle-Grafted NCNTs with Promising Performance in the Ohmic Polarization Region of Fuel Cells. In: ACS Applied Materials and Interfaces, 14 (14). pp. 16108-16116.

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Abstract

We report a user-friendly methodology for the successful designing of targeted single-phased face-centered cubic (fcc) FeCoNiMnCr high-entropy alloy (HEA) nanoparticle-grafted N-doped carbon nanotubes (CNTs). The nanostructure assimilates the advantages of N-doped carbon and HEA nanoparticles as a core for the efficient promotion of electrochemical oxygen reduction reaction (ORR). It emulates the commercial Pt-C electrocatalyst for ORR and shows promise for better performance in the Ohmic polarization region of fuel cells. In addition, it ensures superior efficacy over those of numerous recently reported transition metal-based traditional alloy composites for ORR. The presented methodology has the potential to pave the way for the effective designing of a variety of targeted HEA systems with ease, which is necessary to widen the domain of HEA for numerous applications.

Item Type:	Journal Article
Publication:	ACS Applied Materials and Interfaces
Publisher:	American Chemical Society
Additional Information:	The copyright for this article belongs to the American Chemical Society.
Keywords:	Carbon nanotubes; Chromium alloys; Cobalt alloys; Doping (additives); Electrocatalysis; Electrocatalysts; Electrolytic reduction; Fuel cells; Grafting (chemical); High-entropy alloys; Iron alloys; Manganese alloys; Nanoparticles; Polarization; Transition metals, Alloy nanoparticle; Complex solid solution; Complex solids; Doped carbons; Face-centred cubic; High entropy alloys; N-doped; N-doped carbon nanotube; Oxygen reduction reaction; Performance, Entropy
Department/Centre:	Division of Chemical Sciences > Materials Research Centre
Date Deposited:	19 May 2022 09:35
Last Modified:	24 Jun 2022 05:24
URI:	https://eprints.iisc.ac.in/id/eprint/71892

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