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
Metal-free efficient photocatalyst for stable visible water splitting via a two-electron pathway
Juan Liu,Yang Liu,Naiyun Liu,Yuzhi Han,Xing Zhang,Hui Huang,Yeshayahu Lifshitz,Yeshayahu Lifshitz,Shuit-Tong Lee,Jun Zhong,Zhenhui Kang +10 more
TL;DR: The design and fabrication of a metal-free carbon nanodot–carbon nitride (C3N4) nanocomposite is reported and its impressive performance for photocatalytic solar water splitting is demonstrated.
Journal ArticleDOI
Homogeneously dispersed, multimetal oxygen-evolving catalysts
Bo Zhang,Bo Zhang,Xueli Zheng,Xueli Zheng,Oleksandr Voznyy,Riccardo Comin,Michal Bajdich,Michal Bajdich,Max García-Melchor,Max García-Melchor,Lili Han,Lili Han,Jixian Xu,Min Liu,Lirong Zheng,F. Pelayo García de Arquer,Cao-Thang Dinh,Fengjia Fan,Mingjian Yuan,Emre Yassitepe,Ning Chen,Tom Regier,Peng Fei Liu,Yu Hang Li,Phil De Luna,Alyf Janmohamed,Huolin L. Xin,Hua Gui Yang,Aleksandra Vojvodic,Aleksandra Vojvodic,Edward H. Sargent +30 more
TL;DR: A room-temperature synthesis to produce gelled oxyhydroxides materials with an atomically homogeneous metal distribution that exhibit the lowest overpotential reported at 10 milliamperes per square centimeter in alkaline electrolyte and shows no evidence of degradation after more than 500 hours of operation.
Journal ArticleDOI
Brightly Luminescent and Color-Tunable Colloidal CH3NH3PbX3 (X = Br, I, Cl) Quantum Dots: Potential Alternatives for Display Technology.
Feng Zhang,Haizheng Zhong,Cheng Chen,Xian-gang Wu,Xiangmin Hu,Huang Hailong,Junbo Han,Bingsuo Zou,Yuping Dong +8 more
TL;DR: A ligand-assisted reprecipitation strategy is developed to fabricate brightly luminescent and color-tunable colloidal CH3NH3PbX3 quantum dots with absolute quantum yield up to 70% at room temperature and low excitation fluencies, expected to exhibit interesting nanoscale excitonic properties.
Journal ArticleDOI
NiSe Nanowire Film Supported on Nickel Foam: An Efficient and Stable 3D Bifunctional Electrode for Full Water Splitting
TL;DR: The growth of NiSe nanowire film on nickel foam (NiSe/NF) in situ by hydrothermal treatment of NF using NaHSe as Se source is presented.
Journal ArticleDOI
Ni2P as a Janus catalyst for water splitting: the oxygen evolution activity of Ni2P nanoparticles
TL;DR: In this paper, the Ni2P nanoparticles were used as both cathode and anode catalysts for an alkaline electrolyzer, which generated 10 mA cm−2 at 1.63 V.
References
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Journal ArticleDOI
A Monolithic Photovoltaic-Photoelectrochemical Device for Hydrogen Production via Water Splitting
O. Khaselev,John A. Turner +1 more
TL;DR: Direct water electrolysis was achieved with a novel, integrated, monolithic photoelectrochemical-photovoltaic design that splits water directly upon illumination; light is the only energy input.
Journal ArticleDOI
Mesoscopic CH3NH3PbI3/TiO2 heterojunction solar cells.
Lioz Etgar,Peng Gao,Zhaosheng Xue,Qin Peng,Aravind Kumar Chandiran,Bin Liu,Md. K. Nazeeruddin,Michael Grätzel +7 more
TL;DR: The simple mesoscopic CH(3)NH( 3)PbI(3)/TiO(2) heterojunction solar cell shows impressive photovoltaic performance, with short-circuit photocurrent J(sc)= 16.1 mA/cm(2), open-circuits photovvoltage V(oc) = 0.631 V, and a fill factor FF =0.57.
Journal ArticleDOI
Artificial photosynthesis for solar water-splitting
TL;DR: In this paper, a vision for a future sustainable hydrogen fuel community based on artificial photosynthesis is outlined and current progress towards artificial photosynthetic devices is reviewed, with particular focus on visible light active nanostructures.
Journal ArticleDOI
Wireless Solar Water Splitting Using Silicon-Based Semiconductors and Earth-Abundant Catalysts
Steven Y. Reece,Jonathan A. Hamel,Kimberly Sung,Thomas D. Jarvi,Arthur J. Esswein,Joep J. H. Pijpers,Joep J. H. Pijpers,Daniel G. Nocera +7 more
TL;DR: The development of solar water-splitting cells comprising earth-abundant elements that operate in near-neutral pH conditions, both with and without connecting wires are described, allowing for direct solar-to-fuels conversion that captures many of the basic functional elements of a leaf.
Journal ArticleDOI
Photochemical Route for Accessing Amorphous Metal Oxide Materials for Water Oxidation Catalysis
Rodney D. L. Smith,Mathieu S. Prévot,Randal D. Fagan,Zhipan Zhang,Pavel A. Sedach,Man Kit Jack Siu,Simon Trudel,Curtis P. Berlinguette +7 more
TL;DR: It is demonstrated that a low-temperature process, photochemical metal-organic deposition, can produce amorphous (mixed) metal oxide films for OER catalysis, which contain a homogeneous distribution of metals with compositions that can be accurately controlled.
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