Synthesis of diverse stable MOFs and their electro catalytic capabilities towards desulfurization, water splitting and various nitrophenol reduction reactions

Mahendran, Manivannan; Mariappan, Yazhmozhi; Thamizhselvan, Rahul; Vembu, Suryanarayanan

doi:10.1039/d4ma00083h

Mater. Adv.

2024

DOI: 10.1039/d4ma00083h

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Synthesis of diverse stable MOFs and their electro catalytic capabilities towards desulfurization, water splitting and various nitrophenol reduction reactions

Manivannan Mahendran,

Yazhmozhi Mariappan,

Rahul Thamizhselvan

et al.

Abstract: Metal–organic frameworks are novel class of crystalline porous materials with enormous application potentials, consisting of metal nodes and organic linkers. Because of their adjustable porosity, significant surface area and adaptability...

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Efficient and versatile catalyst for nitrobenzene compounds reduction based on magnetite coated with semi-metallic bismuth

Meira,

Mezalira,

Tondo

et al. 2025

Applied Surface Science

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Efficient and versatile catalyst for nitrobenzene compounds reduction based on magnetite coated with semi-metallic bismuth

Meira,

Mezalira,

Tondo

et al. 2025

Applied Surface Science

View full text Add to dashboard Cite

Reticular One-Pot Synthesis of Synergic 4f(Ln)–3d(TM) Heterovalence and Heterobimetallic Europium–Copper MOFs: Emerging Bifunctional Electrocatalysts for Efficient Water Splitting

Saravanakumar,

Mahendran,

Vijayaprabhakaran

et al. 2024

ACS Appl. Energy Mater.

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A promising potential new electrocatalyst for water splitting could be developed through the meticulous design and synthesis of diverse bimetallic metal−organic frameworks (MOFs). These MOFs would use different or the same metals from the d and f blocks and could have different oxidation states. This study focuses on developing an efficient bimetallic electrocatalyst, based on the rare-earth lanthanide series element europium (Eu) and transition-metal copper (Cu) as the MOF using a one-pot hydrothermal method. As a result, a significant 4f−3d heterovalent heterobimetallic MOF was obtained, and its electrocatalytic activity toward water splitting was evaluated. Further, heterobimetallic MOFs with their mixed valence display an improved water-splitting performance through synergistic effects. Linear-sweep voltammetry (LSV) studies reveal that the bimetallic Eu−Cu-MOF required an overpotential of 133 mV for hydrogen evolution reaction (HER) and 240 mV for oxygen evolution reaction (OER) at a current density of 20 mA cm −2 in 0.5 M H 2 SO 4 and 1 M KOH, respectively. Moreover, the long-term stability study exhibits a stable nature up to 20 and 16 h in 1 M KOH and 0.5 M H 2 SO 4 solutions, respectively. The incorporation of Eu synergistically increases the adsorption and desorption ability of OH − and O 2 molecules toward OER, respectively. The bimetallic MOF displayed excellent stability under acidic as well as alkaline conditions, indicating an exciting future for Eu−Cu-MOF in the field of electrochemical water splitting.

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Synthesis of diverse stable MOFs and their electro catalytic capabilities towards desulfurization, water splitting and various nitrophenol reduction reactions

Abstract: Metal–organic frameworks are novel class of crystalline porous materials with enormous application potentials, consisting of metal nodes and organic linkers. Because of their adjustable porosity, significant surface area and adaptability...

Cited by 2 publications

References 50 publications

Efficient and versatile catalyst for nitrobenzene compounds reduction based on magnetite coated with semi-metallic bismuth

Efficient and versatile catalyst for nitrobenzene compounds reduction based on magnetite coated with semi-metallic bismuth

Reticular One-Pot Synthesis of Synergic 4f(Ln)–3d(TM) Heterovalence and Heterobimetallic Europium–Copper MOFs: Emerging Bifunctional Electrocatalysts for Efficient Water Splitting

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