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Polymorphs of a copper coordination compound: interlinking active sites enhance the electrocatalytic activity of the coordination polymer compared to the coordination complex

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Abstract

Copper–pyridinedicarboxylic acid produces concomitant polymorphs, a copper complex (Cu–C) and a coordination polymer (Cu–P), which have a similar coordination environment but completely different electrocatalytic activity. Cu–P displayed highly enhanced activity for the hydrogen evolution reaction (HER, η@10 mA cm−2 = 285 mV, jmax = 161.7 mA cm−2) compared to Cu–C (η@10 mA cm−2 = 444 mV, jmax = 48.7 mA cm−2) in a neutral medium.

Graphical abstract: Polymorphs of a copper coordination compound: interlinking active sites enhance the electrocatalytic activity of the coordination polymer compared to the coordination complex

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Article information


Submitted
25 Oct 2019
Accepted
14 Dec 2019
First published
16 Dec 2019

CrystEngComm, 2020, Advance Article
Article type
Communication

Polymorphs of a copper coordination compound: interlinking active sites enhance the electrocatalytic activity of the coordination polymer compared to the coordination complex

P. Muthukumar, M. Pannipara, A. G. Al-Sehemi, D. Moon and S. P. Anthony, CrystEngComm, 2020, Advance Article , DOI: 10.1039/C9CE01698H

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