@article {44542,
	title = {Substituent-induced deformed ni{\textendash}porphyrin as an electrocatalyst for the electrochemical conversion of water into dioxygen},
	journal = {European Journal of Inorganic Chemistry},
	volume = {14},
	year = {2018},
	month = {APR},
	pages = {1549-1555},
	type = {Article},
	abstract = {<p>The electrochemical water oxidation ability of complexes 5,15-diphenylporphinatonickel(II) (A) and 5,15-bis(3,5-di-tert-butylphenyl)porphinatonickel(II) (B) in the oxygen evolution reaction (OER) have been investigated in an alkaline medium. Complex B was found to be kinetically and thermodynamically more active than complex A. The overpotential and Tafel slope of complex B are lower than those of complex A by 30 mV and around 45 mV/decade, respectively, which supports the higher activity of B. Moreover, stability tests endorse the sustainability of both samples under alkaline conditions. It has been found that the 3,5-di-tert-butylphenyl substituent in B plays a decisive role in achieving a better OER onset potential and current than that obtained with A, which is a result of the modulation of the structural parameters of B. Furthermore, the measured OER activities of A and B have been correlated with their molecular arrangement as well as differences in their bonding characteristics and dipole moments. For further insight, the obtained results have been confirmed by a theoretical study.</p>},
	issn = {14341948},
	doi = {10.1002/ejic.201701427},
	author = {Krishna, J. V. S. and Krishna, Narra Vamsi and Singh, Santosh K. and Shaw, Pankaj K. and Dhavale, Vishal M. and Vardhaman,  Anil Kumar and Giribabu, Lingamallu}
}
