Release Time:2019-03-09  Hits:

Indexed by: Journal Papers

Date of Publication: 2015-10-12

Journal: CHEMSUSCHEM

Included Journals: Scopus、EI、SCIE

Volume: 8

Issue: 19

Page Number: 3242-3247

ISSN: 1864-5631

Key Words: hematite; heterogeneous catalysis; nanorods; ruthenium; water oxidation

Abstract: Photoelectrochemical (PEC) cells for light-driven water splitting are prepared using hematite nanorod arrays on conductive glass as the photoanode. These devices improve the photocurrent of the hematite-based photoanode for water splitting, owing to fewer surface traps and decreased electron recombination resulting from the one-dimensional structure. By employing a molecular ruthenium co-catalyst, which contains a strong 2,6-pyridine-dicarboxylic acid anchoring group at the hematite photoanode, the photocurrent of the PEC cell is enhanced with high stability for over 10000s in a 1m KOH solution. This approach can pave a route for combining one-dimensional nanomaterials and molecular catalysts to split water with high efficiency and stability.