Phytochemical-assisted green synthesis of CuFeO x nano-rose electrocatalysts for oxygen evolution reaction in alkaline media.

Autor: Sarkar DK; Solar Energy Research Institute, Universiti Kebangsaan Malaysia Bangi Selangor Darul Ehsan 43600 Malaysia akhtar@ukm.edu.my vidhya@ukm.edu.my.; Department of Applied Chemistry and Chemical Engineering, Rajshahi University Rajshahi-6205 Bangladesh., Selvanathan V; Institute of Sustainable Energy, Universiti Tenaga Nasional (The Energy University) Jalan Ikram-Uniten Kajang 43000 Selangor Malaysia., Mottakin M; Solar Energy Research Institute, Universiti Kebangsaan Malaysia Bangi Selangor Darul Ehsan 43600 Malaysia akhtar@ukm.edu.my vidhya@ukm.edu.my.; Department of Applied Chemistry and Chemical Engineering, Bangabandhu Sheikh Mujibur Rahman Science and Technology University Gopalganj-8100 Bangladesh., Hasan AKM; Solar Energy Research Institute, Universiti Kebangsaan Malaysia Bangi Selangor Darul Ehsan 43600 Malaysia akhtar@ukm.edu.my vidhya@ukm.edu.my., Islam MA; Solar Energy Research Institute, Universiti Kebangsaan Malaysia Bangi Selangor Darul Ehsan 43600 Malaysia akhtar@ukm.edu.my vidhya@ukm.edu.my., Almohamadi H; Department of Chemical Engineering, Faculty of Engineering, Islamic University of Madinah Madinah Saudi Arabia hha@iu.edu.sa., Alharthi NH; Department of Mechanical Engineering, Faculty of Engineering, Islamic University of Madinah Madinah Saudi Arabia.; Department of Mechanical Engineering, College of Engineering, King Saud University Riyadh 11421 Saudi Arabia., Akhtaruzzaman M; Solar Energy Research Institute, Universiti Kebangsaan Malaysia Bangi Selangor Darul Ehsan 43600 Malaysia akhtar@ukm.edu.my vidhya@ukm.edu.my.; Graduate School of Pure and Applied Sciences, University of Tsukuba Tsukuba Ibaraki 305-8573 Japan.
Jazyk: angličtina
Zdroj: RSC advances [RSC Adv] 2023 Jun 23; Vol. 13 (28), pp. 19130-19139. Date of Electronic Publication: 2023 Jun 23 (Print Publication: 2023).
DOI: 10.1039/d3ra02512h
Abstrakt: This study represents a green synthesis method for fabricating an oxygen evolution reaction (OER) electrode by depositing two-dimensional CuFeO x on nickel foam (NF). Two-dimensional CuFeO x was deposited on NF using in situ hydrothermal synthesis in the presence of Aloe vera extract. This phytochemical-assisted synthesis of CuFeO x resulted in a unique nano-rose-like morphology (petal diameter 30-70 nm), which significantly improved the electrochemical surface area of the electrode. The synthesized electrode was analyzed for its OER electrocatalytic activity and it was observed that using 75% Aloe vera extract in the phytochemical-assisted synthesis of CuFeO x resulted in improved OER electrocatalytic performance by attaining an overpotential of 310 mV for 50 mA cm -2 and 410 mV for 100 mA cm -2 . The electrode also sustained robust stability throughout the 50 h of chronopotentiometry studies under alkaline electrolyte conditions, demonstrating its potential as an efficient OER electrode material. This study highlights the promising use of Aloe vera extract as a green and cost-effective way to synthesize efficient OER electrode materials.
Competing Interests: There are no conflicts to declare.
(This journal is © The Royal Society of Chemistry.)
Databáze: MEDLINE
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