Electrocatalytic hydrogen evolution reaction using an organometallic cobalt complex and its hybrid material with MWCNTs

Aniruddha Paik; Abhijit Singha; Sabarni Paul; Arijit Maity; Debesh Sharma; Lokesh Rai; Bholanath Maity; Sujoy Rana

doi:10.1039/D6DT00902F

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Electrocatalytic hydrogen evolution reaction using an organometallic cobalt complex and its hybrid material with MWCNTs

Aniruddha Paik,^a Abhijit Singha,^b Sabarni Paul,^a Arijit Maity,^c Debesh Sharma,

^d Lokesh Rai,^a Bholanath Maity

*^e and Sujoy Rana

*^ab

Author affiliations

* Corresponding authors

^a Department of Chemistry, University of North Bengal, Darjeeling 734013, India
E-mail: sujoyran@gmail.com

^b School of Chemistry, University of Hyderabad, Hyderabad-500046, India
E-mail: sujoyrana@uohyd.ac.in

^c Department of Chemistry, Inorganic Chemistry Section, Jadavpur University, Kolkata 700032, India

^d Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur-741246, India

^e KAUST Catalysis Centre (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
E-mail: bholanath.maity@kaust.edu.sa

Abstract

The electrocatalytic hydrogen evolution reactivity of a Co–C organometallic bond containing cobalt quinolyl benzamide complex has been demonstrated. The retention of the Co–C(arene) bond in this complex under electrocatalytic conditions and its effect on HER activity have been elucidated. Also, a hybrid material of the Co(III) complex with MWCNTs acts as a precatalyst for the Co(OH)₂/CoOOH electrocatalyst in alkaline aqueous solution.

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DOI: https://doi.org/10.1039/D6DT00902F
Article type: Communication
Submitted: 20 Apr 2026
Accepted: 13 May 2026
First published: 19 May 2026

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Dalton Trans., 2026, Advance Article

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Electrocatalytic hydrogen evolution reaction using an organometallic cobalt complex and its hybrid material with MWCNTs

A. Paik, A. Singha, S. Paul, A. Maity, D. Sharma, L. Rai, B. Maity and S. Rana, Dalton Trans., 2026, Advance Article , DOI: 10.1039/D6DT00902F

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Dalton Transactions

Electrocatalytic hydrogen evolution reaction using an organometallic cobalt complex and its hybrid material with MWCNTs

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Electrocatalytic hydrogen evolution reaction using an organometallic cobalt complex and its hybrid material with MWCNTs

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