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
A Minireview on Nickel-Based Heterogeneous Electrocatalysts for Water Splitting
Yuting Li,Xinghong Bao,Daisong Chen,Zhigang Wang,Nikita Dewangan,Mengqiu Li,Ze Xu,Juan Wang,Sibudjing Kawi,Qin Zhong +9 more
TL;DR: In this article, a number of nickel-based heterogeneous catalysts have been designed and synthesized to lower the overpotentials for large current densities due to low cost and facile synthesis.
Journal ArticleDOI
Boosting Hole Transfer in the Fluorine-Doped Hematite Photoanode by Depositing Ultrathin Amorphous FeOOH/CoOOH Cocatalysts.
TL;DR: This work showcases an appealing maneuver to activate the water oxidation performance of the α-Fe2O3 photoanode by an integration strategy of heteroatom doping and cocatalyst coupling.
Journal ArticleDOI
Tailorable Electrocatalytic 5-Hydroxymethylfurfural Oxidation and H2 Production: Architecture–Performance Relationship in Bifunctional Multilayer Electrodes
TL;DR: Three-dimensional (3D) hybrid electrocatalytic electrodes fabricated via layer-by-layer (LbL) assembly for simultaneous HMF conversion and hydrogen evolution reaction (HER) exhibited highly tunable electroCatalytic performance depending on the reaction kinetics, as well as a diffusion-controlled process due to the sequential HMF oxidation and the HER.
Journal ArticleDOI
Organic chemistry at anodes and photoanodes
TL;DR: The potential for an organic oxidation reaction to instead occur at the anode presents a new opportunity for the production of value-added chemical products from cheap, readily available and, in some cases, renewable feedstocks.
Journal ArticleDOI
A highly-efficient oxygen evolution electrode based on defective nickel-iron layered double hydroxide
Xuya Xiong,Zhao Cai,Zhao Cai,Daojin Zhou,Guoxin Zhang,Qian Zhang,Yin Jia,Xinxuan Duan,Qixian Xie,Shibin Lai,Tianhui Xie,Yaping Li,Xiaoming Sun,Xue Duan +13 more
TL;DR: In this paper, a defective NiFe LDH nanoarray was used for oxygen evolution reaction (OER) in water splitting, which showed a low onset potential of 1.40 V ( vs. RHE).
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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