Issue 33, 2018
From the journal:

Dalton Transactions

Enhancement of electrocatalytic abilities for reducing carbon dioxide: functionalization with a redox-active ligand-coordinated metal complex†

Habib Md. Ahsan, ORCID logo a   Brian K. Breedlove, ORCID logo *a   Santivongskul Piangrawee,a   Mohammad Rasel Mian,a   Ahmed Fetoh,b   Goulven Cosquer ORCID logo ac  and  Masahiro Yamashitaacde  

* Corresponding authors

a Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Sendai 980-8578, Japan
E-mail: breedlove@m.tohoku.ac.jp

b Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt

c Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology (JST), 4-1-8 Kawaguchi, Saitama 332-0012, Japan

d WPI Research Center, Advanced Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan

e School of Materials and Engineering, Nankai University, Tianjin 300350, China

Abstract

A binary system consisting of a ditopic planar pseudo-pincer ligand (qlca = quinoline-2-carbaldehyde (pyridine-2-carbonyl) hydrazone) coordinated to two metal centres affording [{Ru(bpy)2}(μ-qlca)NiCl2]Cl·4H2O·CH3OH (2) (bpy = 2,2′-bipyridine) is reported. The Ni2+ moiety acts as the electrocatalytic active site for CO2 reduction to CO. The turnover frequency (TOF) increased from 0.83 s−1 for [Ni(qlca)Cl2] (3) to 120 s−1 for 2, and the overpotential is 350 mV less than that for 3 due to the electronic influence of the {Ru(bpy)2}2+ moiety on the catalytic active site.

Graphical abstract: Enhancement of electrocatalytic abilities for reducing carbon dioxide: functionalization with a redox-active ligand-coordinated metal complex

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Article information

DOI
https://doi.org/10.1039/C8DT02288G
Article type
Communication
Submitted
04 Jun 2018
Accepted
25 Jul 2018
First published
25 Jul 2018

Dalton Trans., 2018,47, 11313-11316

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Enhancement of electrocatalytic abilities for reducing carbon dioxide: functionalization with a redox-active ligand-coordinated metal complex

H. Md. Ahsan, B. K. Breedlove, S. Piangrawee, M. R. Mian, A. Fetoh, G. Cosquer and M. Yamashita, Dalton Trans., 2018, 47, 11313 DOI: 10.1039/C8DT02288G

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