Stability of organic compounds on the oxygen-evolving center of photosystem II and manganese oxide water oxidation catalysts.
Surrounding organic residues are indispensable for the high water oxidation activity of the Mn4cluster in photosystem II. Here, the stability of organic compounds on synthetic Mn oxides was analyzed using inlet electrochemical mass spectroscopy. Carboxyl groups, which are the most abundant residues around the Mn4cluster, were found to stably facilitate the oxygen evolution reaction.
Department of Applied Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
Toru
T
Hayashi
Biofunctional Catalyst Research Team, RIKEN Center for Sustainable Resource Science (CSRS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan. ryuhei.nakamura@riken.jp.
Akira
A
Yamaguchi
National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan.
Kazuhito
K
Hashimoto
Biofunctional Catalyst Research Team, RIKEN Center for Sustainable Resource Science (CSRS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan. ryuhei.nakamura@riken.jp.
Ryuhei
R
Nakamura