Proton-donating and chemistry-dependent buffering capability of amino acids for the hydrogen evolution reaction

Abstract

The hydrogen evolution reaction (HER) has been widely demonstrated to have a strong dependence on pH and on the source of protons, where a clear kinetic advantage arises in acidic...

Influence of Carbon Nanotube Support on Electrochemical Nitrate Reduction Catalyzed by Cobalt Phthalocyanine Molecules

“…Even so, proton transfer groups can help overcome this challenge by serving as proton relays to the active site, thereby increasing the local proton concentration. This hypothesis is supported by previous literature which has shown that proton-donating groups in the vicinity of the catalyst can effectively accelerate HER kinetics. − The different dependences of the NO 3 RR and the HER on proton transfer can help us understand the support effect discovered in this study. With functional groups that can help transfer protons, the OCNT support promotes H 2 evolution but not NO 3 – reduction.…”