title: Photochemical water splitting mediated by a C1 shuttle.
abstract: The possibility of performing photochemical water splitting in a two-stage system, separately releasing the H2and O2components, has been probed with two separate catalysts and in combination with a formaldehyde/formate shuttling redox couple. In the first stage, formaldehyde releases hydrogen vigorously in the presence of an Na4[Fe(CN)6]·10H2O catalyst, selectively affording the formate anion. In the second stage, the formate anion is hydro-genated back to formaldehyde by water and in the presence of a Bi2WO6photocatalyst whilst releasing oxygen. Both stages operate at room temperature and under visible light irradiation. The two separate photocatalysts are compatible since water splitting can also be obtained in one-pot experiments with simultaneous H2/O2evolution.
authors.affiliation: Department of Chemistry, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada. sgambaro@uottawa.ca.
authors.forename: N P
authors.initials: NP
authors.lastname: Alderman
authors.affiliation: Department of Chemistry, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada. sgambaro@uottawa.ca.
authors.forename: J M
authors.initials: JM
authors.lastname: Sommers
authors.affiliation: Department of Chemistry, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada. sgambaro@uottawa.ca.
authors.forename: C J
authors.initials: CJ
authors.lastname: Viasus
authors.affiliation: Department of Chemistry, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada. sgambaro@uottawa.ca.
authors.forename: C H T
authors.initials: CH
authors.lastname: Wang
authors.affiliation: Department of Chemistry, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada. sgambaro@uottawa.ca.
authors.forename: V
authors.initials: V
authors.lastname: Peneau
authors.affiliation: Department of Chemistry, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada. sgambaro@uottawa.ca.
authors.forename: S
authors.initials: S
authors.lastname: Gambarotta
authors.affiliation: Advanced Catalysis SABIC CDR Centre at KAUST, Thuwal, 23955, Saudi Arabia.
authors.forename: B
authors.initials: B
authors.lastname: Vidjayacoumar
authors.affiliation: Advanced Catalysis SABIC CDR Centre at KAUST, Thuwal, 23955, Saudi Arabia.
authors.forename: K A
authors.initials: KA
authors.lastname: Al-Bahily