Electrochemical Study of the Hydrogen Evolution Reaction using Coppe r(II) Thiacalix[4]arene-based Catalyst
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Published:2023
Issue:2
Volume:45
Page:113-113
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ISSN:0253-5106
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Container-title:Journal of the chemical society of pakistan
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language:
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Short-container-title:JCS Pak
Author:
Hani El Moll Hani El Moll,Khalaf M Alenezi Khalaf M Alenezi,Abdallah O Alshammari Abdallah O Alshammari,Ashanul Haque Ashanul Haque,Jamal Humaidi Raoudha Soury Jamal Humaidi Raoudha Soury,Eid M S Azzam Eid M S Azzam,Fahad Abdulaziz Fahad Abdulaziz,Salman Latif Salman Latif,Milan Vrane Milan Vrane
Abstract
Despite the interesting structure of the generic thiacalix[4]arene containing four coordinating sulfur atoms bridging four phenolic units, there are only a few reported examples of thiacalixarene-based coordination complexes that are used as electrocatalysts. Herein, we report electrocatalytic hydrogen evolution reaction (HER) by a thiacalix[4]arene-based copper(II) complex (1). As expected, two reduction waves were appeared (-0.48 V and -1.30 V vs Ag/AgCl) for Cu2+/Cu+ and Cu+/Cu reduction couples. The HER by proton reduction occurs at -1.03 V with a shift of 0.27 V compared to the second peak potential at -1.30 V. The increase in the number of acetic acid equivalents, from 0 to 17.5 with a frequency of 2.5 eq, was accompanied by an increase in the peak current that reached a maximum value of 183 and#181;A for 15 equivalents of acetic acid.
Publisher
Chemical Society of Pakistan
Subject
General Chemistry