Decoupled Photoelectrochemical Water Splitting System for Centralized Hydrogen Production

• Tipo: Artigo em Revista Científica Internacional
• Data: 2020-02

Autores

Landman, A. (Autor) Outra; Halabi, R. (Autor) Outra; Dias, P. (Autor) FEUP; Dotan, H. (Autor) Outra; Mehlmann, A. (Autor) Outra; Shter, G.E. (Autor) Outra; Halabi, M. (Autor) Outra; Naseraldeen, O. (Autor) Outra; Adélio Mendes (Autor) FEUP; Grader, G.S. (Autor) Outra; Rothschild, A. (Autor) Outra

Revista

Título: Joule

Vol. 4

Páginas: 448-471

Editora: Elsevier

Indexação

ISI Web of Knowledge - 99 Citações

Scopus - 107 Citações

BASE - Bielefeld Academic Search Engine

ScienceDirect (Elsevier)

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia química

Projetos Associados

SunStorage - Recolha e armazenamento de energia solar

LEPABE-2-ECO-INNOVATION - LEPABE-2-ECO-INNOVATION

Outras Informações

ID Authenticus: P-00R-QHC

DOI: 10.1016/j.joule.2019.12.006

Abstract (EN): Photoelectrochemical (PEC) water splitting offers an elegant approach for solar energy conversion into hydrogen fuel. Large-scale hydrogen production requires stable and efficient photoelectrodes and scalable PEC cells that are fitted for safe and cost-effective operation. One of the greatest challenges is the collection of hydrogen gas from millions of PEC cells distributed in the solar field. In this work, a separate-cell PEC system with decoupled hydrogen and oxygen cells was designed for centralized hydrogen production, using 100 cm(2) hematite (alpha-Fe2O3) photoanodes and nickel hydroxide (Ni(OH)(2))/oxyhydroxide (NiOOH) electrodes as redox mediators. The operating conditions of the system components and their configuration were optimized for daily cycles, and ten 8.3 h cycles were carried out under solar simulated illumination without additional bias at an average short-circuit current of 55.2 mA. These results demonstrate successful operation of a decoupled PEC water splitting system with separate hydrogen and oxygen cells.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 24