Journal ArticleDOI
Recent developments in heterogeneous photocatalysts for solar-driven overall water splitting
TLDR
In this article, a review summarizes the basics of overall water splitting via both one-step excitation and Z-scheme processes, with a focus on standard methods of determining photocatalytic performance.Abstract:
Overall water splitting based on particulate photocatalysts is an easily constructed and cost-effective technology for the conversion of abundant solar energy into clean and renewable hydrogen energy on a large scale. This promising technology can be achieved in a one-step excitation system using a single photocatalyst or via a Z-scheme process based on a pair of photocatalysts. Ideally, such photocatalysis will proceed with charge separation and transport unaffected by recombination and trapping, and surface catalytic processes will not involve undesirable reactions. This review summarizes the basics of overall water splitting via both one-step excitation and Z-scheme processes, with a focus on standard methods of determining photocatalytic performance. Various surface engineering strategies applied to photocatalysts, such as cocatalyst loading, surface morphology control, surface modification and surface phase junctions, have been developed to allow efficient one-step excitation overall water splitting. In addition, numerous visible-light-responsive photocatalysts have been successfully utilized as H2-evolution or O2-evolution photocatalysts in Z-scheme overall water splitting. Prototype particulate immobilization systems with photocatalytic performances comparable to or drastically higher than those of particle suspension systems suggest the exciting possibility of the large-scale production of low-cost renewable solar hydrogen.read more
Citations
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Journal ArticleDOI
Recent progress made in the mechanism comprehension and design of electrocatalysts for alkaline water splitting
TL;DR: In this paper, the authors describe the fundamentals of the hydrogen evolution reaction/oxygen evolution reaction (HER/OER) and construct efficient electrocatalysts based on the structure-activity relationship.
Journal ArticleDOI
Boron-doped nitrogen-deficient carbon nitride-based Z-scheme heterostructures for photocatalytic overall water splitting
Daming Zhao,Yiqing Wang,Chung-Li Dong,Yu-Cheng Huang,Yu-Cheng Huang,Jie Chen,Fei Xue,Shaohua Shen,Liejin Guo +8 more
TL;DR: Wang et al. as mentioned in this paper constructed 2D carbon nitride nanosheets with varying levels of boron dopants and nitrogen defects, which can act as either H2 or O2-evolving photocatalysts.
Journal ArticleDOI
A mobile robotic chemist
Benjamin Burger,Phillip M. Maffettone,Vladimir V. Gusev,Catherine M. Aitchison,Yang Bai,Xiaoyan Wang,Xiaobo Li,Ben M. Alston,Buyi Li,Rob Clowes,Nicola Rankin,Brandon Harris,Reiner Sebastian Sprick,Andrew I. Cooper +13 more
TL;DR: A mobile robot autonomously operates analytical instruments in a wet chemistry laboratory, performing a photocatalyst optimization task much faster than a human would be able to.
Journal ArticleDOI
Synergy of Dopants and Defects in Graphitic Carbon Nitride with Exceptionally Modulated Band Structures for Efficient Photocatalytic Oxygen Evolution.
Daming Zhao,Chung-Li Dong,Bin Wang,Chao Chen,Yu-Cheng Huang,Yu-Cheng Huang,Zhidan Diao,Shuzhou Li,Liejin Guo,Shaohua Shen +9 more
TL;DR: A facile approach is successfully demonstrated to engineer the electronic structures and the band structures of g-C3 N4 with simultaneous introduction of dopants and defects for high-performance photocatalytic oxygen evolution, which can provide informative principles for the design of efficient photocatalysis systems for solar energy conversion.
Journal ArticleDOI
Heterogeneous Single-Atom Photocatalysts: Fundamentals and Applications.
TL;DR: This review hopes that this review will provide some inspiration for the future discovery of the single-atom photocatalysts, manifestly stimulating the development in this emerging research area.
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
Heterogeneous photocatalyst materials for water splitting
Akihiko Kudo,Yugo Miseki +1 more
TL;DR: This critical review shows the basis of photocatalytic water splitting and experimental points, and surveys heterogeneous photocatalyst materials for water splitting into H2 and O2, and H2 or O2 evolution from an aqueous solution containing a sacrificial reagent.
Journal Article
Photoelectrochemical cells : Materials for clean energy
TL;DR: In this paper, the authors look into the historical background, and present status and development prospects for photoelectrochemical cells, based on nanocrystalline materials and conducting polymer films.
Journal ArticleDOI
Photocatalyst releasing hydrogen from water
Kazuhiko Maeda,Kentaro Teramura,Daling Lu,Tsuyoshi Takata,Nobuo Saito,Yasunobu Inoue,Kazunari Domen +6 more
TL;DR: An advance in the catalysis of the overall splitting of water under visible light is described: the new catalyst is a solid solution of gallium and zinc nitrogen oxide, modified with nanoparticles of a mixed oxide of rhodium and chromium, which functions as a promising and efficient photocatalyst in promoting the evolution of hydrogen gas.
Journal ArticleDOI
Artificial Photosynthesis: Solar Splitting of Water to Hydrogen and Oxygen
Allen J. Bard,Marye Anne Fox +1 more
TL;DR: In this article, the authors focus on the photodriven conversion of liquid water to gaseous hydrogen and oxygen, a process similar to that of biological photosynthesis, using sunlight to drive a thermodynamically uphill reaction of an abundant material to produce fuel.
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