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Updated: Feb 19, 2026

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions
Published on: October 5, 2019
Catechol-TiO2 hybrids for photocatalytic H2 production and photocathode assembly
Katherine L Orchard1, Daisuke Hojo2, Katarzyna P Sokol3
1Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK. reisner@ch.cam.ac.uk and WPI Advanced Institute for Materials Research (AIMR), Tohoku University, 2-1-1 Katahira Aoba-ku Sendai, Miyagi 980-8577, Japan. ajiri@tagen.tohoku.ac.jp.
Abstract:
Visible-light driven H2 evolution in water is achieved using catechol-photosensitised TiO2 nanoparticles with a molecular nickel catalyst. Layer-by-layer immobilisation of catechol-TiO2 onto tin-doped indium oxide electrodes generates photocathodic currents in the presence of an electron acceptor. This approach represents a new strategy for controlling photocurrent direction in dye-sensitised photoelectrochemical applications.
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