Partially Oxidized Sub-10 nm MnO Nanocrystals with High Activity for Water Oxidation Catalysis
Scientific Reports2015Vol. 5(1), pp. 10279–10279
Citations Over TimeTop 10% of 2015 papers
Kyoungsuk Jin, Arim Chu, Jimin Park, Donghyuk Jeong, Sung Eun Jerng, Uk Sim, Hui‐Yun Jeong, Chan Woo Lee, Yong-Sun Park, Ki Dong Yang, Gajendra Kumar Pradhan, Dong-Hun Kim, Nark-Eon Sung, Sun Hee Kim, Ki Tae Nam
Abstract
The oxygen evolution reaction (OER) is considered a major bottleneck in the overall water electrolysis process. In this work, highly active manganese oxide nano-catalysts were synthesized via hot injection. Facile surface treatment generated Mn(III) species on monodisperse 10 nm MnO nanocrystals (NCs). Size dependency of MnO NCs on OER activity was also investigated. Surprisingly, the partially oxidized MnO NCs only required 530 mV @ 5 mA cm(-2) under near neutral conditions.
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