Sun Hee Kim

TL;DR: These findings emphasize the importance of local cobalt coordination in the catalysis and suggest the possible effect of polyanions on the water oxidation chemistry.

TL;DR: A new crystal structure is identified, Mn3(PO4)2·3H2O, that precipitates spontaneously in aqueous solution at room temperature and is demonstrated to have high catalytic performance under neutral conditions.

TL;DR: A simple method to assess C. elegans' maximum physical ability based on the worms' maximum movement velocity is reported, which shows maximum velocity declines with age, correlates well with longevity, accurately reports movement ability and, if measured in mid-adulthood, is predictive of maximal lifespan.

TL;DR: It is confirmed as to MnO nanoparticles that the one-electron oxidation step from Mn(II) to Mn(III) is no longer the rate-determining step for water oxidation and that Mn(IV)═O species are generated as reaction intermediates during catalysis.

TL;DR: In this paper, the oxygen evolution reaction (OER) properties of Mn5O8 nanoparticles were evaluated using cyclic voltammetry (CV) and a current density of 5 mA/cm2 was reached when 580 mV of overpotential was applied at pH 7.8.