A Heterostructure Photoelectrode Based on Two-Dimensional Covalent Organic Framework Film Decorated TiO₂ Nanotube Arrays for Enhanced Photoelectrochemical Hydrogen Generation.

ABSTRACT: The well-defined heterostructure of the photocathode is desirable for photoelectrochemically producing hydrogen from aqueous solutions. Herein, enhanced heterostructures were fabricated based on typical stable covalent organic framework (TpPa-1) films and TiO₂ nanotube arrays (NTAs) as a proof-of-concept model to tune the photoelectrochemical (PEC) hydrogen generation by tailoring the photoelectrode microstructure and interfacial charge transport. Ultrathin TpPa-1 films were uniformly grown on the surface of TiO₂ NTAs via a solvothermal condensation of building blocks by tuning the monomer concentration. The Pt₁@TpPa-1/TiO₂-NTAs photoelectrode with single-atom Pt₁ as a co-catalyst demonstrated improved visible-light response, enhanced

SUBMITTER: Zhang Y 

PROVIDER: S-EPMC9865276 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature