A Semi-artificial Photoelectrochemical Tandem Leaf with a CO2-to-Formate Efficiency Approaching 1 %

• Tipo: Artigo em Revista Científica Internacional
• Data: 2021

Autores

Moore, EE (Autor) Outra; Andrei, V (Autor) Outra; Oliveira, AR (Autor) Outra; Coito, AM (Autor) Outra; Pereira, IAC (Autor) Outra; Reisner, E (Autor) Outra

Revista

Título: Angewandte Chemie - International Edition

ISSN: 1433-7851

Editora: Wiley-Blackwell

Indexação

ISI Web of Knowledge - 2 Citações

Scopus - 1 Citação

Outras Informações

ID Authenticus: P-00V-J4J

DOI: 10.1002/anie.202110867

Abstract (EN): Semi-artificial photoelectrochemistry can combine state-of-the-art photovoltaic light-absorbers with enzymes evolved for selective fuel-forming reactions such as CO2 reduction, but the overall performance of such hybrid systems has been limited to date. Here, the electrolyte constituents were first tuned to establish an optimal local environment for a W-formate dehydrogenase to perform electrocatalysis. The CO2 reductase was then interfaced with a triple cation lead mixed-halide perovskite through a hierarchically structured porous TiO2 scaffold to produce an integrated photocathode achieving a photocurrent density of -5 mA cm(-2) at 0.4 V vs. the reversible hydrogen electrode during simulated solar light irradiation. Finally, the combination with a water-oxidizing BiVO4 photoanode produced a bias-free integrated biophotoelectrochemical tandem device (semi-artificial leaf) with a solar CO2-to-formate energy conversion efficiency of 0.8 %.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6