Work

Rational Designing of NiO Nanoparticles Anchored with PEG-WO3 for Enhanced Water Oxidation Performance

Year: 2025

Type: article

Abstract: The electrochemical water splitting method is widely regarded as an efficient and sustainable approach for producing high-purity hydrogen in an environmentally friendly manner. Cost-effective and efficient electrocatalysts are essential for augmenting the electrocatalytic water oxidation reaction. Herein, the PEG-WO3-NiO electrocatalyst is acknowledged for attaining efficient oxygen evolution reaction (OER) performances in alkaline conditions. The NiO nanoparticles anchored themselves to the PEG-WO3‘s surface and produced an effective interfacial contact between the electrocatalyst materials. Among various compositions, the optimized ratio of the PEG-WO3-NiO electrocatalyst exhibits a low overpotential of 349.7 mV at a current density of 10 mA cm−2 and a Tafel slope of 71.22 mV dec−1 for the OER in 1 M KOH. Additionally, the electrocatalyst demonstrates excellent stability, maintaining its performance even after 5000 cyclic voltammetry (CV) cycles and chronopotentiometry analysis. Given its durability and high electrochemically active surface area, the PEG-WO3-NiO electrocatalyst contributes to the advancement of cost-effective and scalable solutions for water oxidation applications.

Source: Polymers

DOI: 10.3390/polym17091281

Authors: Mrunal Bhosale, Pritam J. Morankar, Rutuja U. Amate, Chan-Wook Jeon

Institution: Yeungnam University

Language: English

Topic: Electrocatalysts for Energy Conversion

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

SDGs: Affordable and clean energy, Clean water and sanitation

Open Access status: gold

Estimated APC paid: $3,258