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Microenvironment modulation of amide-bonded Metalloporphyrins functionalized gold electrodes for accelerating Electrocatalyzed hydrogen evolutions
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DOI：10.1016/j.mcat.2025.115173.png)
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Abstract
En 中文
To modulate the microenvironment of metalloporphyrin modified gold electrodes through Au-S interactions, a series of amide-bonded metalloporphyrins with different metal-centers (metal effect) and amide-bonds (hydrophilicity and high dipole moment) were tested. Importantly, these electrodes exhibited significantly accelerated, tunable and stable electrochemically catalyzed hydrogen evolution (HERs) performances over a wide pH range medias. Especially, the gold electrode3-Ni-SAM with a doubly-amide bonds, the metalloporphyrin derivative with higher molecular hydrophilicity and polarity has performed the most satisfied HER performances. Also, the influence of the linkages, metal centers and enantiomeric isomers were also compared.
Keywords:
Metalloporphyrins
Gold Electrodes
Hydrophilicity
Polarization
Electrocatalyzed Hydrogen Evolutions