Cover Image

In Situ Reconstructed Layered Double Hydroxides via MOF Engineering and Ru Doping for Decoupled Acidic Water Oxidation Enhancement

Discovering cost-effective, durable, and economical electrocatalysts for the lattice oxygen- mediated mechanism (LOM)-based oxygen evolution reaction (OER) under acidic conditions is essential for advancing the commercialization of electrochemical water-splitting devices. In this study, we effective...

Full description

Saved in:
Bibliographic Details
Main Authors: Vijayakumar P., Lenus S., Pradeeswari K., Kumar M., Chang J.-H., Kandasamy M., Krishnamachari M., Dai Z., Al-Kahtani A.A., Sankar Krishnan P.
Other Authors: 56742208000
Format: Article
Published: American Chemical Society 2025
Subjects:
Charge transfer
Cost effectiveness
Electrolysis
Organometallics
Oxygen
Reaction kinetics
Ruthenium
Acidic conditions
Acidic water
Cost effective
Framework engineering
Lattice oxygen
Layered-double hydroxides
Metalorganic frameworks (MOFs)
Nickel foam
Reaction under
Water oxidation
Electrocatalysts
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.uniten.dspace-36686
record_format dspace
spelling my.uniten.dspace-366862025-03-03T15:43:55Z In Situ Reconstructed Layered Double Hydroxides via MOF Engineering and Ru Doping for Decoupled Acidic Water Oxidation Enhancement Vijayakumar P. Lenus S. Pradeeswari K. Kumar M. Chang J.-H. Kandasamy M. Krishnamachari M. Dai Z. Al-Kahtani A.A. Sankar Krishnan P. 56742208000 57323078600 57203965456 57216133294 12754164000 57052581200 58292418200 37016057800 6602956099 58928236000 Charge transfer Cost effectiveness Electrolysis Organometallics Oxygen Reaction kinetics Ruthenium Acidic conditions Acidic water Cost effective Framework engineering Lattice oxygen Layered-double hydroxides Metalorganic frameworks (MOFs) Nickel foam Reaction under Water oxidation Electrocatalysts Discovering cost-effective, durable, and economical electrocatalysts for the lattice oxygen- mediated mechanism (LOM)-based oxygen evolution reaction (OER) under acidic conditions is essential for advancing the commercialization of electrochemical water-splitting devices. In this study, we effectively constructed a distinctive petal-like nanoflake (NFls) structure by introducing ruthenium (Ru) into a NiM (M = Fe, Co) metal-organic framework (MOF) on a nickel foam (NFo) substrate through a straightforward in situ conversion process of layered double hydroxides (LDHs). Utilizing the unique electrochemical properties of this material, the Ru-doped NiFe-BDC/NFo exhibited an impressively low overpotential of ?247 mV at a current density of 10 mA cm-2 when operating in an acidic environment for OER. Most notably, our champion catalysts displayed exceptional long-term stability during continuous operation for 20 h in 0.5 M H2SO4, positioning them as some of the top electrocatalysts for acidic conditions. The exceptional catalytic performance of NiM (M = Fe, Co)-BDC/NFo can be ascribed to the introduction of Ru and the conversion of LDH into a MOF. This transformation significantly enhances reaction kinetics and facilitates charge transfer, ultimately resulting in the attainment of optimal activity for the OER. This research introduces a novel category of electrocatalysts for the OER under acidic conditions, which has been relatively underexplored. ? 2024 American Chemical Society. Final 2025-03-03T07:43:55Z 2025-03-03T07:43:55Z 2024 Article 10.1021/acs.energyfuels.3c04641 2-s2.0-85187216160 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85187216160&doi=10.1021%2facs.energyfuels.3c04641&partnerID=40&md5=8dd035388866b4c73064ba754b2e12dc https://irepository.uniten.edu.my/handle/123456789/36686 38 5 4504 4515 American Chemical Society Scopus
institution Universiti Tenaga Nasional
building UNITEN Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tenaga Nasional
content_source UNITEN Institutional Repository
url_provider http://dspace.uniten.edu.my/
topic Charge transfer
Cost effectiveness
Electrolysis
Organometallics
Oxygen
Reaction kinetics
Ruthenium
Acidic conditions
Acidic water
Cost effective
Framework engineering
Lattice oxygen
Layered-double hydroxides
Metalorganic frameworks (MOFs)
Nickel foam
Reaction under
Water oxidation
Electrocatalysts
spellingShingle Charge transfer
Cost effectiveness
Electrolysis
Organometallics
Oxygen
Reaction kinetics
Ruthenium
Acidic conditions
Acidic water
Cost effective
Framework engineering
Lattice oxygen
Layered-double hydroxides
Metalorganic frameworks (MOFs)
Nickel foam
Reaction under
Water oxidation
Electrocatalysts
Vijayakumar P.
Lenus S.
Pradeeswari K.
Kumar M.
Chang J.-H.
Kandasamy M.
Krishnamachari M.
Dai Z.
Al-Kahtani A.A.
Sankar Krishnan P.
In Situ Reconstructed Layered Double Hydroxides via MOF Engineering and Ru Doping for Decoupled Acidic Water Oxidation Enhancement
description Discovering cost-effective, durable, and economical electrocatalysts for the lattice oxygen- mediated mechanism (LOM)-based oxygen evolution reaction (OER) under acidic conditions is essential for advancing the commercialization of electrochemical water-splitting devices. In this study, we effectively constructed a distinctive petal-like nanoflake (NFls) structure by introducing ruthenium (Ru) into a NiM (M = Fe, Co) metal-organic framework (MOF) on a nickel foam (NFo) substrate through a straightforward in situ conversion process of layered double hydroxides (LDHs). Utilizing the unique electrochemical properties of this material, the Ru-doped NiFe-BDC/NFo exhibited an impressively low overpotential of ?247 mV at a current density of 10 mA cm-2 when operating in an acidic environment for OER. Most notably, our champion catalysts displayed exceptional long-term stability during continuous operation for 20 h in 0.5 M H2SO4, positioning them as some of the top electrocatalysts for acidic conditions. The exceptional catalytic performance of NiM (M = Fe, Co)-BDC/NFo can be ascribed to the introduction of Ru and the conversion of LDH into a MOF. This transformation significantly enhances reaction kinetics and facilitates charge transfer, ultimately resulting in the attainment of optimal activity for the OER. This research introduces a novel category of electrocatalysts for the OER under acidic conditions, which has been relatively underexplored. ? 2024 American Chemical Society.
author2 56742208000
author_facet 56742208000
Vijayakumar P.
Lenus S.
Pradeeswari K.
Kumar M.
Chang J.-H.
Kandasamy M.
Krishnamachari M.
Dai Z.
Al-Kahtani A.A.
Sankar Krishnan P.
format Article
author Vijayakumar P.
Lenus S.
Pradeeswari K.
Kumar M.
Chang J.-H.
Kandasamy M.
Krishnamachari M.
Dai Z.
Al-Kahtani A.A.
Sankar Krishnan P.
author_sort Vijayakumar P.
title In Situ Reconstructed Layered Double Hydroxides via MOF Engineering and Ru Doping for Decoupled Acidic Water Oxidation Enhancement
title_short In Situ Reconstructed Layered Double Hydroxides via MOF Engineering and Ru Doping for Decoupled Acidic Water Oxidation Enhancement
title_full In Situ Reconstructed Layered Double Hydroxides via MOF Engineering and Ru Doping for Decoupled Acidic Water Oxidation Enhancement
title_fullStr In Situ Reconstructed Layered Double Hydroxides via MOF Engineering and Ru Doping for Decoupled Acidic Water Oxidation Enhancement
title_full_unstemmed In Situ Reconstructed Layered Double Hydroxides via MOF Engineering and Ru Doping for Decoupled Acidic Water Oxidation Enhancement
title_sort in situ reconstructed layered double hydroxides via mof engineering and ru doping for decoupled acidic water oxidation enhancement
publisher American Chemical Society
publishDate 2025
_version_ 1825816069985533952
score 13.244413

Similar Items