@article{d62b725a36824aec8fd971f524cbde6c,
title = "Highly Efficient and Selective Photocatalytic CO2 Reduction to CO in Water by a Cobalt Porphyrin Molecular Catalyst",
abstract = "The performance of a water-soluble cobalt porphyrin ([{meso-tetra(4-sulfonatophenyl)porphyrinato}cobalt(III)], CoTPPS) as a catalyst for the photoreduction of CO2 in fully aqueous media has been investigated under visible light irradiation using [Ru(bpy)3]2+ as a photosensitizer and ascorbate as a sacrificial electron donor. CO is selectively produced (>82%) with high efficiency (926 TONCO; TONCO = turnover number for CO). Upon optimization, selectivities of at least 91% are achieved. Efficiencies up to 4000 TONCO and 2400 h-1 TOFCO (TOFCO = turnover frequency for CO) are reached at low catalyst loadings, albeit with loss in selectivity. This work successfully demonstrates the ability of CoTPPS to perform highly efficient photoreduction of CO2 in water while retaining its high selectivity for CO formation.",
author = "Arnau Call and Mihaela Cibian and Keiya Yamamoto and Takashi Nakazono and Kosei Yamauchi and Ken Sakai",
note = "Funding Information: This work was supported by JSPS KAKENHI Grant Number JP18H01996 (Grant-in-Aid for Scientific Research (B)) and by JSPS KAKENHI Grant Number JP18H05171 in a Grant-in-Aid for Scientific Research on Innovative Areas “Innovations for Light-Energy Conversion (I4LEC)”. This work was also supported by the International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), sponsored by the World Premier International Research Center Initiative (WPI), MEXT, Japan. M.C. thanks le Fonds du Que{\'b} ec pour la recherch{\'e} sur la nature et les technologies (FRQNT) for a PD scholarship. The authors are also grateful to Kyushu University Department of Chemistry and I2CNER services and personnel. Funding Information: This work was supported by JSPS KAKENHI Grant Number JP18H01996 (Grant-in-Aid for Scientific Research (B)) and by JSPS KAKENHI Grant Number JP18H05171 in a Grant-in-Aid for Scientific Research on Innovative Areas {"}Innovations for Light-Energy Conversion (I4LEC){"}. This work was also supported by the International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), sponsored by the World Premier International Research Center Initiative (WPI) MEXT, Japan. M.C. thanks le Fonds du Qu?bec pour la recherch? sur la nature et les technologies (FRQNT) for a PD scholarship. The authors are also grateful to Kyushu University Department of Chemistry and I2CNER services and personnel. Publisher Copyright: {\textcopyright} Copyright 2019 American Chemical Society.",
year = "2019",
month = jun,
day = "7",
doi = "10.1021/acscatal.8b04975",
language = "English",
volume = "9",
pages = "4867--4874",
journal = "ACS Catalysis",
issn = "2155-5435",
publisher = "American Chemical Society",
number = "6",
}