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A Conjugated Porous Organic Polymer as the Bifunctional Electrocatalyst for Enhanced Water Splitting

30 November 2023, Version 1
Working Paper
This content is an early or alternative research output and has not been peer-reviewed by Cambridge University Press at the time of posting.

Abstract

A conjugated porous organic polymer (SMCOP-4) with imine linkage was rationally designed and synthesized by an imine condensation reaction. The π-conjugated network structure of SMCOP-4 facilitates electron mobility, enhancing electrochemical activity. The bifunctional electrocatalyst SMCOP-4 shows superior performance for HER and OER with a low overpotential of 127 mV and 295 mV, respectively, at 10 mA cm-2 current density and with small Tafel slopes in alkaline electrolytes. Along with the low overpotential values, the electrocatalyst is highly stable at electrochemical conditions.

Keywords

Porous organic polymers
bifunctional electrocatalyst
hydrogen evolution reaction
oxygen evolution reaction
sustainability

Supplementary materials

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Supporting Information
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Supporting information contains characterization techniques, TGA, BET isotherm, FE-SEM image, XPS analysis, electrochemical studies, and comparison table.
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Version History

Nov 30, 2023 Version 1

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The content is available under CC BY NC ND 4.0 [opens in a new tab]

DOI

10.26434/chemrxiv-2023-7nwcd
D O I: 10.26434/chemrxiv-2023-7nwcd [opens in a new tab]

Author’s competing interest statement

The author(s) have declared they have no conflict of interest with regard to this content

Ethics

The author(s) have declared ethics committee/IRB approval is not relevant to this content

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