Decoupled Photoelectrochemical Water Splitting System for Centralized Hydrogen Production

• Type: Article in International Scientific Journal
• Date: 2020-02

Authors

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

Journal

Title: Joule

Vol. 4

Pages: 448-471

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 20 Citations

BASE - Bielefeld Academic Search Engine

ScienceDirect (Elsevier)

Scientific classification

FOS: Engineering and technology > Chemical engineering

Associated Projects

SunStorage - Recolha e armazenamento de energia solar

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

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 24