Lycium ruthenicum stem extract mediated green synthesis of MnO2/Mn3(PO4)2 composite nanowire electrocatalyst for oxygen evolution reaction

Raj Kumar; Ritu Raj; Imtiaz Ahmed; Vikash Kumar; Gajendra Prasad Singh; Krishna Kanta Haldar

doi:10.1088/2632-959X/ad70d0

Lycium ruthenicum stem extract mediated green synthesis of MnO₂/Mn₃(PO₄)₂ composite nanowire electrocatalyst for oxygen evolution reaction

Raj Kumar
, Ritu Raj
, Imtiaz Ahmed
, Vikash Kumar
, Gajendra Prasad Singh
, Krishna Kanta Haldar

Defence Institute of High Altitude Research
Panjab University
Central University of Jharkhand
Central University of Punjab, Bathinda
International Iberian Nanotechnology Laboratory

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

A composite of manganese oxide (MnO₂) and Mn₃(PO₄)₂ decorated nanowires (MnO₂/Mn₃(PO₄)₂) was prepared using Lycium ruthenicum stem-extract mediated green synthesis. This composite material functions as an efficient and long-lasting electrocatalyst for water-splitting reactions, which could significantly improve the performance of oxygen evolution reaction (OER). The OER activity of MnO₂/Mn₃(PO₄)₂-based nanowires is boosted by blending with a conducting support, such as manganese oxide (MnO₂). The x-ray diffraction pattern and Fourier transform infrared data indicate that the nanowires are highly crystalline. The MnO₂/Mn₃(PO₄)₂ composite material demonstrates superior stability compared to its individual constituents and generates a current density of 10 mA cm⁻² at a low overpotential of 244 mV for OER in alkaline media. This research may lead to the development of MnO₂/Mn₃(PO₄)₂ composite materials as electrocatalysts for overall water-splitting reactions.

Original language	English
Article number	035015
Journal	Nano Express
Volume	5
Issue number	3
DOIs	https://doi.org/10.1088/2632-959X/ad70d0
State	Published - 1 Sep 2024
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2024 The Author(s). Published by IOP Publishing Ltd.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

MnO/Mn
composite
lycium ruthenicum
nanowires
oxygen evolution reaction (OER)

Access to Document

10.1088/2632-959X/ad70d0

Cite this

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title = "Lycium ruthenicum stem extract mediated green synthesis of MnO2/Mn3(PO4)2 composite nanowire electrocatalyst for oxygen evolution reaction",

abstract = "A composite of manganese oxide (MnO2) and Mn3(PO4)2 decorated nanowires (MnO2/Mn3(PO4)2) was prepared using Lycium ruthenicum stem-extract mediated green synthesis. This composite material functions as an efficient and long-lasting electrocatalyst for water-splitting reactions, which could significantly improve the performance of oxygen evolution reaction (OER). The OER activity of MnO2/Mn3(PO4)2-based nanowires is boosted by blending with a conducting support, such as manganese oxide (MnO2). The x-ray diffraction pattern and Fourier transform infrared data indicate that the nanowires are highly crystalline. The MnO2/Mn3(PO4)2 composite material demonstrates superior stability compared to its individual constituents and generates a current density of 10 mA cm−2 at a low overpotential of 244 mV for OER in alkaline media. This research may lead to the development of MnO2/Mn3(PO4)2 composite materials as electrocatalysts for overall water-splitting reactions.",

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author = "Raj Kumar and Ritu Raj and Imtiaz Ahmed and Vikash Kumar and Singh, \{Gajendra Prasad\} and Haldar, \{Krishna Kanta\}",

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AU - Kumar, Raj

AU - Raj, Ritu

AU - Ahmed, Imtiaz

AU - Kumar, Vikash

AU - Singh, Gajendra Prasad

AU - Haldar, Krishna Kanta

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N2 - A composite of manganese oxide (MnO2) and Mn3(PO4)2 decorated nanowires (MnO2/Mn3(PO4)2) was prepared using Lycium ruthenicum stem-extract mediated green synthesis. This composite material functions as an efficient and long-lasting electrocatalyst for water-splitting reactions, which could significantly improve the performance of oxygen evolution reaction (OER). The OER activity of MnO2/Mn3(PO4)2-based nanowires is boosted by blending with a conducting support, such as manganese oxide (MnO2). The x-ray diffraction pattern and Fourier transform infrared data indicate that the nanowires are highly crystalline. The MnO2/Mn3(PO4)2 composite material demonstrates superior stability compared to its individual constituents and generates a current density of 10 mA cm−2 at a low overpotential of 244 mV for OER in alkaline media. This research may lead to the development of MnO2/Mn3(PO4)2 composite materials as electrocatalysts for overall water-splitting reactions.

AB - A composite of manganese oxide (MnO2) and Mn3(PO4)2 decorated nanowires (MnO2/Mn3(PO4)2) was prepared using Lycium ruthenicum stem-extract mediated green synthesis. This composite material functions as an efficient and long-lasting electrocatalyst for water-splitting reactions, which could significantly improve the performance of oxygen evolution reaction (OER). The OER activity of MnO2/Mn3(PO4)2-based nanowires is boosted by blending with a conducting support, such as manganese oxide (MnO2). The x-ray diffraction pattern and Fourier transform infrared data indicate that the nanowires are highly crystalline. The MnO2/Mn3(PO4)2 composite material demonstrates superior stability compared to its individual constituents and generates a current density of 10 mA cm−2 at a low overpotential of 244 mV for OER in alkaline media. This research may lead to the development of MnO2/Mn3(PO4)2 composite materials as electrocatalysts for overall water-splitting reactions.

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