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Updated: Apr 9, 2026

CO2 Photoreduction to CH4 Performance Under Concentrating Solar Light
Published on: June 12, 2019
Introducing an insulating alumina layer into a molecular photocathode to improve CO2 reduction activity
Yu Takagi1, Masaya Yara2, Toshiya Tanaka1
1Department of Chemistry, School of Science, Institute of Science Tokyo, 2-12-1-NE-2 Ookayama, Meguro-ku, Tokyo 152-8550, Japan. maeda@chem.sci.isct.ac.jp.
None:
Interfacial engineering with an Al2O3 overlayer enhances visible-light-driven CO2 reduction on p-type NiO photocathodes incorporating Ru(II)-based photosensitizing molecular units. Operando transient absorption spectroscopy reveals that Al2O3 suppresses charge recombination between NiO and the photosensitizer unit, prolonging carrier lifetimes and improving catalytic efficiency.
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