Publication
Title
Vapor-fed solar hydrogen production exceeding 15% efficiency using earth abundant catalysts and anion exchange membrane
Author
Abstract
Vapor-fed solar hydrogen generators can convert water vapor from the air into hydrogen using sunlight as the energy source. Hydrogen and oxygen evolution reactions are performed in the gas phase in cathode and anode compartments separated by a membrane. Anion exchange membranes show great promise for this type of solar hydrogen generator. They provide an alkaline environment enabling the use of earth abundant materials as electrocatalysts. In this work, a vapor-fed solar hydrogen generator with KOH-doped poly(vinyl alcohol) anion exchange membrane flanked with NiFe and NiMo catalysts is demonstrated. The device reached an average 15.1% solar-to-hydrogen efficiency at room temperature and 95% relative humidity. This first demonstration of gas phase water splitting with earth abundant catalysts and anion exchange membrane opens a pathway to low cost, autonomous, efficient and safe solar hydrogen generators.
Language
English
Source (journal)
Sustainable energy & fuels / Royal Society of Chemistry (Great Britain) - Philadelphia, PA, 2017, currens
Publication
Philadelphia, PA : Royal Society of Chemistry , 2017
ISSN
2398-4902
DOI
10.1039/C7SE00373K
Volume/pages
1 (2017) , p. 2061-2065
ISI
000422798800003
Full text (Publisher's DOI)
Full text (publisher's version - intranet only)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
External links
Web of Science
Record
Identifier
Creation 15.01.2018
Last edited 24.08.2024
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