Water photolysis at 12.3% efficiency via perovskite photovoltaics and Earth-abundant catalysts
Open accessAbstract
The power of a pair of perovskites: In the past several years, perovskite solar cells have emerged as a low-cost experimental alternative to more traditional silicon devices. Luo et al. now show that a pair of perovskite cells connected in series can power the electrochemical breakdown of water into hydrogen and oxygen efficiently (see the Perspective by Hamann). Hydrogen generation from water is being actively studied as a supplement in solar power generation to smooth out the fluctuations due to variations in sunlight. Science , this issue p. 1593 ; see also p. 1566
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Some transition metal alloy catalysts with bifunctional catalytic activity have been developed and applied in overall water splitting, such as Ni3FeN/r-GO, Co1Mn1CH, NiFe LDH/NF, Co3O4NCs/CFP, Co-CoOx/CN, Co-P/NC, NiCo2O4/NF, NiCo2O4, etc.
“Some transition metal alloy catalysts with bifunctional catalytic activity have been developed and applied in overall water splitting, such as Ni3FeN/r-GO, Co1Mn1CH, NiFe LDH/NF, Co3O4NCs/CFP, Co–CoOx/CN, Co–P/NC, NiCo2O4/NF, NiCo2O4, etc.33,40–46”
From High loading of NiFe active sites on a melamine formaldehyde carbon-based aerogel towards efficient bi-functional electrocatalysis for water splitting (2021) · cites this paper as [42]
The operation voltage of the Au-Rh-aerogel-based electrolyzer is smaller than for most previously reported electrocatalysts in alkaline medium (1.51-1.81 V).
“The obtained operation voltage of the Au–Rh-aerogel-based electrolyzer is also smaller than for most previously reported electrocatalysts in alkaline medium (1.51–1.81 V).[35–38]”
From Engineering Multimetallic Aerogels for pH‐Universal HER and ORR Electrocatalysis (2020) · cites this paper as [35]
Reaching the water-splitting operation voltage becomes easily achievable through the integration or combination of two or more photovoltaic devices.
“Reaching the water-splitting operation voltage becomes easily achievable through the integration or combination of two or more photovoltaic devices.[164,165]”
From Advances in Blue Energy Fuels: Harvesting Energy from Ocean for Self‐Powered Electrolysis (2025) · cites this paper as [164]
To address the issue of insufficient operational voltage of a single photovoltaic device for water-splitting, multiple devices are connected in series or tandem solar cells are employed.
“To address the issue of insufficient operational voltage of a single photovoltaic device for watersplitting, multiple devices are connected in series or tandem solar cells are employed.[164,237]”
From Advances in Blue Energy Fuels: Harvesting Energy from Ocean for Self‐Powered Electrolysis (2025) · cites this paper as [164]
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- Authors
- Luo, J., Im, J.-H., Mayer, M. T., Schreier, M., Nazeeruddin, M. K., Park, N.-G., Tilley, S. D., Fan, H. J., & Grätzel, M.
- Affiliations
- Nanyang Technological University (SG)
- École Polytechnique Fédérale de Lausanne (CH)
- Sungkyunkwan University (KR)
- Laboratory of Photonics and Interfaces, Institute of Chemical Sciences and Engineering, School of Basic Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.
- ORCID
- Venue
- Science
- Published
- 2014-09-26
- Volume
- 345
- Issue
- 6204
- Pages
- 1593-1596
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2015127275
- Cited by
- 2,509
- References
- 3
- Citations by year
- 2026: 58 · 2025: 97 · 2024: 137 · 2023: 142 · 2022: 187 · 2021: 213 · 2020: 246 · 2019: 279 · 2018: 339 · 2017: 305 · 2016: 300 · 2015: 192 · 2014: 9
- FWCI
- 88.51
- Type
- journal article
- Language
- en
- Open access
- green
- infoscience.epfl.ch
- Locations
- Science (publishedVersion)
- PubMed (publishedVersion)
- Zurich Open Repository and Archive (University of Zurich) (acceptedVersion)
- Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion)
- Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion, cc-by-nc-nd)
- Zurich Open Repository and Archive (University of Zurich) (submittedVersion)
- Topics
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Advanced Photocatalysis Techniques
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Iron oxide chemistry and applications
- Keywords
- water photolysis, solar hydrogen production, perovskite tandem solar cells, NiFe layered double hydroxide, bifunctional electrocatalysts, oxygen evolution reaction, hydrogen evolution reaction, photoelectrochemical water splitting, solar-to-hydrogen efficiency, perovskite stability, alkaline electrolyte
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