Journal ArticleDOI
Water photolysis at 12.3% efficiency via perovskite photovoltaics and Earth-abundant catalysts
Jingshan Luo,Jingshan Luo,Jeong-Hyeok Im,Jeong-Hyeok Im,Matthew T. Mayer,Marcel Schreier,Mohammad Khaja Nazeeruddin,Nam-Gyu Park,S. David Tilley,Hong Jin Fan,Michael Grätzel +10 more
TLDR
It is shown that a pair of perovskite cells connected in series can power the electrochemical breakdown of water into hydrogen and oxygen efficiently, and the combination of the two yields a water-splitting photocurrent density and a solar-to-hydrogen efficiency of 12.3%.Abstract:
Although sunlight-driven water splitting is a promising route to sustainable hydrogen fuel production, widespread implementation is hampered by the expense of the necessary photovoltaic and photoelectrochemical apparatus. Here, we describe a highly efficient and low-cost water-splitting cell combining a state-of-the-art solution-processed perovskite tandem solar cell and a bifunctional Earth-abundant catalyst. The catalyst electrode, a NiFe layered double hydroxide, exhibits high activity toward both the oxygen and hydrogen evolution reactions in alkaline electrolyte. The combination of the two yields a water-splitting photocurrent density of around 10 milliamperes per square centimeter, corresponding to a solar-to-hydrogen efficiency of 12.3%. Currently, the perovskite instability limits the cell lifetime.read more
Citations
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Journal ArticleDOI
Ultrahigh electrocatalytic oxygen evolution by iron-nickel sulfide nanosheets/reduced graphene oxide nanohybrids with an optimized autoxidation process
Jun Jiang,Shu Lu,Wei-Kang Wang,Gui-Xiang Huang,Bao-Cheng Huang,Feng Zhang,Ying-Jie Zhang,Han-Qing Yu +7 more
TL;DR: In this paper, a 3D iron-nickel sulfide nanosheets/reduced graphene oxide (FeNiS2 NS/rGO) nanohybrids via a one-pot colloidal method was designed to relieve the negative impacts of autoxidation on oxygen evolution reaction (OER).
Journal ArticleDOI
Bulk layered heterojunction as an efficient electrocatalyst for hydrogen evolution
Changdeuck Bae,Changdeuck Bae,Thi Anh Ho,Hyun-Chul Kim,Seonhee Lee,Seulky Lim,Myungjun Kim,Hyunjun Yoo,Josep M. Montero-Moreno,Jong Hyeok Park,Hyunjung Shin +10 more
TL;DR: The spontaneous formation of composite chalcogenide materials that consist of two-dimensional materials dispersed in bulk and their unusual charge transport properties for application in hydrogen evolution reactions (HERs) are described.
Journal ArticleDOI
Experimental and theoretical insights into sustained water splitting with an electrodeposited nanoporous nickel hydroxide@nickel film as an electrocatalyst
TL;DR: In this paper, a new class of nanoporous nickel hydroxide@nickel (Ni(OH)2@Ni) films on carbon cloth has been reported as a Janus electrocatalyst for overall water splitting.
Journal ArticleDOI
Periodic Porous 3D Electrodes Mitigate Gas Bubble Traffic during Alkaline Water Electrolysis at High Current Densities
Tianyi Kou,Shanwen Wang,Rongpei Shi,Tao Zhang,Samuel Chiovoloni,Jennifer Q. Lu,Wen Chen,Marcus A. Worsley,Brandon C. Wood,Sarah E. Baker,Eric B. Duoss,Rui Wu,Cheng Zhu,Yat Li +13 more
Journal ArticleDOI
Stabilizing the OOH* intermediate via pre-adsorbed surface oxygen of a single Ru atom-bimetallic alloy for ultralow overpotential oxygen generation
Jinsun Lee,Ashwani Kumar,Taehun Yang,Xinghui Liu,Amol R. Jadhav,G. Hwan Park,Yosep Hwang,Jianmin Yu,Chau Tk Nguyen,Yang Liu,Sara Ajmal,Min Gyu Kim,Hyoyoung Lee +12 more
TL;DR: In this paper, atomically dispersed Ru single-atoms on a cobalt-iron bimetallic-alloy encapsulated by graphitic carbon (RuSACoFe2/G) were used as an efficient and durable electrocatalyst for the alkaline OER.
References
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Journal ArticleDOI
Electrochemical Photolysis of Water at a Semiconductor Electrode
Akira Fujishima,Kenichi Honda +1 more
TL;DR: Water photolysis is investigated by exploiting the fact that water is transparent to visible light and cannot be decomposed directly, but only by radiation with wavelengths shorter than 190 nm.
Journal ArticleDOI
A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films
TL;DR: In this article, the authors describe a photovoltaic cell, created from low-to medium-purity materials through low-cost processes, which exhibits a commercially realistic energy-conversion efficiency.
Journal ArticleDOI
Organometal Halide Perovskites as Visible-Light Sensitizers for Photovoltaic Cells
TL;DR: Two organolead halide perovskite nanocrystals were found to efficiently sensitize TiO(2) for visible-light conversion in photoelectrochemical cells, which exhibit strong band-gap absorptions as semiconductors.
Journal ArticleDOI
Efficient Hybrid Solar Cells Based on Meso-Superstructured Organometal Halide Perovskites
Michael M. Lee,Joël Teuscher,Tsutomu Miyasaka,Takurou N. Murakami,Takurou N. Murakami,Henry J. Snaith +5 more
TL;DR: A low-cost, solution-processable solar cell, based on a highly crystalline perovskite absorber with intense visible to near-infrared absorptivity, that has a power conversion efficiency of 10.9% in a single-junction device under simulated full sunlight is reported.
Journal ArticleDOI
Sequential deposition as a route to high-performance perovskite-sensitized solar cells
Julian Burschka,Norman Pellet,Norman Pellet,Soo-Jin Moon,Robin Humphry-Baker,Peng Gao,Mohammad Khaja Nazeeruddin,Michael Grätzel +7 more
TL;DR: A sequential deposition method for the formation of the perovskite pigment within the porous metal oxide film that greatly increases the reproducibility of their performance and allows the fabrication of solid-state mesoscopic solar cells with unprecedented power conversion efficiencies and high stability.
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Electrochemical Photolysis of Water at a Semiconductor Electrode
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