Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Faculty Publications Article Faculty Publications -Articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Kumar, Pankaj; Pattanayak, Santanu; Bidarahalli, Anagha Raghavendrachar; Ghosh, Munmun Title A name given to the resource Buffer-Induced Electrocatalytic Hydrogen Evolution by a Cobalt Pentadentate Complex in Water Date A point or period of time associated with an event in the lifecycle of the resource 01-01-2026 Source A related resource from which the described resource is derived Inorganic Chemistry;Volume;65;Issue;12;pp.6534-6543 Identifier An unambiguous reference to the resource within a given context <a href="https://doi.org/10.1021/acs.inorgchem.5c05524" target="_blank" rel="noreferrer noopener">https://doi.org/10.1021/acs.inorgchem.5c05524</a> <br /><br /><a href="https://www.scopus.com/pages/publications/105034264860?origin=resultslist" target="_blank" rel="noreferrer noopener">https://www.scopus.com/pages/publications/105034264860?origin=resultslist</a> Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Kumar P., Department of Chemistry, Ashoka University, Rajiv Gandhi Education City, Haryana, Sonipat, 131029, India; Pattanayak S., Department of Chemistry, Ashoka University, Rajiv Gandhi Education City, Haryana, Sonipat, 131029, India; Bidarahalli A.R., Department of Chemistry, Ashoka University, Rajiv Gandhi Education City, Haryana, Sonipat, 131029, India, Department of Chemistry, Christ University, Bangalore, 560029, India; Ghosh M., Department of Chemistry, Ashoka University, Rajiv Gandhi Education City, Haryana, Sonipat, 131029, India Description An account of the resource Elucidating proton transfer dynamics in water represents one of the most challenging problems in water splitting reactions due to the presence of multiple proton donors, which complicates the overall reaction kinetics. This study examines the impact of buffer pKa and its concentration on catalytic performance for hydrogen evolution catalyzed by a CoIII complex (1). The results demonstrate that buffer increases the catalytic rate of the hydrogen evolution reaction. This enhanced activity is supported by the number of buffer acids possessing varying pKa values, with 2-(N-morpholino)ethanesulfonic acid yielding the maximum catalytic current. A linear free energy relationship, a characteristic of a Brsted-type mechanism, is observed between the buffers pKa and catalytic rate constants. This substantiates that the rate-limiting step is controlled by the proton delivery mediated by the buffer acids. Moreover, the observed inhibition in catalytic activity at a higher concentration of buffer reveals the possible binding interaction between buffer and the cobalt center, thereby impeding substrate access. These findings underscore the critical role of buffer identity and its concentration in optimizing the proton-dependent catalytic reactions in water. 2026 American Chemical Society Publisher An entity responsible for making the resource available American Chemical Society Relation A related resource ISSN: 201669; CODEN: INOCA Language A language of the resource English Type The nature or genre of the resource Article Rights Information about rights held in and over the resource Restricted Access; Hardcopy may be available in the library Format The file format, physical medium, or dimensions of the resource online