Recent developments in heterogeneous photocatalysts for solar-driven overall water splitting

2019 ◽  
Vol 48 (7) ◽  
pp. 2109-2125 ◽  
Author(s):  
Zheng Wang ◽  
Can Li ◽  
Kazunari Domen
Keyword(s):  
Solar Energy ◽  
Water Splitting ◽  
Large Scale ◽  
Cost Effective ◽  
Hydrogen Energy ◽  
Overall Water Splitting ◽  
Effective Technology ◽  
Recent Developments ◽  
Renewable Hydrogen

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.

Toward Visible Light Response: Overall Water Splitting Using Heterogeneous Photocatalysts

Green ◽  
2011 ◽  
Vol 1 (4) ◽  
Author(s):  
Kazuhiro Takanabe ◽  
Kazunari Domen
Keyword(s):  
Solar Energy ◽  
Visible Light ◽  
Energy Conversion ◽  
Water Splitting ◽  
Large Scale ◽  
Light Response ◽  
Solar Flux ◽  
Powder Form ◽  
Overall Water Splitting ◽  
Visible Light Response

AbstractExtensive energy conversion of solar energy can only be achieved by large-scale collection of solar flux. The technology that satisfies this requirement must be as simple as possible to reduce capital cost. Overall water splitting by powder-form photocatalysts directly produces a mixture of H

Ni3S2/Cu-NiCo LDH Heterostructure Nanosheet Array on Ni Foam for Electrocatalytic Overall Water Splitting

2021 ◽  
Author(s):  
Lina Jia ◽  
Gaohui Du ◽  
Di Han ◽  
Yawen Hao ◽  
Wenqi Zhao ◽  
...  
Keyword(s):  
Transition Metal ◽  
Energy Conversion ◽  
Water Splitting ◽  
Large Scale ◽  
Hydrogen Energy ◽  
Sustainable Utilization ◽  
Ni Foam ◽  
Highly Efficient ◽  
Overall Water Splitting ◽  
Nanosheet Array

The development of highly efficient transition metal-based catalysts for overall water splitting is of extreme significance for promoting large-scale sustainable utilization of hydrogen energy and energy conversion. Herein, we report...

scholarly journals Graphene/MoS2/FeCoNi(OH)x and Graphene/MoS2/FeCoNiPx multilayer-stacked vertical nanosheets on carbon fibers for highly efficient overall water splitting

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Xixi Ji ◽  
Yanhong Lin ◽  
Jie Zeng ◽  
Zhonghua Ren ◽  
Zijia Lin ◽  
...  
Keyword(s):  
Water Splitting ◽  
Carbon Fibers ◽  
Graphene Nanosheets ◽  
Water Electrolysis ◽  
Hybrid Structure ◽  
Hydrogen Energy ◽  
Highly Efficient ◽  
Overall Water Splitting ◽  
Stable Oxygen ◽  
Excellent Stability

AbstractDevelopment of excellent and cheap electrocatalysts for water electrolysis is of great significance for application of hydrogen energy. Here, we show a highly efficient and stable oxygen evolution reaction (OER) catalyst with multilayer-stacked hybrid structure, in which vertical graphene nanosheets (VGSs), MoS2 nanosheets, and layered FeCoNi hydroxides (FeCoNi(OH)x) are successively grown on carbon fibers (CF/VGSs/MoS2/FeCoNi(OH)x). The catalyst exhibits excellent OER performance with a low overpotential of 225 and 241 mV to attain 500 and 1000 mA cm−2 and small Tafel slope of 29.2 mV dec−1. Theoretical calculation indicates that compositing of FeCoNi(OH)x with MoS2 could generate favorable electronic structure and decrease the OER overpotential, promoting the electrocatalytic activity. An alkaline water electrolyzer is established using CF/VGSs/MoS2/FeCoNi(OH)x anode for overall water splitting, which generates a current density of 100 mA cm−2 at 1.59 V with excellent stability over 100 h. Our highly efficient catalysts have great prospect for water electrolysis.

SIn2Te/TeIn2Se: a type-II heterojunction as water-splitting photocatalyst with high solar energy harvesting

2021 ◽  
Author(s):  
Peishen Shang ◽  
Chunxiao Zhang ◽  
Mengshi Zhou ◽  
Chaoyu He ◽  
Tao Ouyang ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Solar Energy ◽  
Water Splitting ◽  
First Principles ◽  
Type Ii ◽  
Two Dimensional ◽  
First Principles Calculations ◽  
Solar Energy Harvesting ◽  
Renewable Hydrogen

Searching for photocatalysts is crucial for the production of renewable hydrogen from water. Two-dimensional (2D) vdW heterojunctions show great potential. Using first- principles calculations within the HSE06 functional, we propose...

scholarly journals Photocatalytic Overall Water Splitting by SrTiO3 with Surface Oxygen Vacancies

Nanomaterials ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2572
Author(s):  
Yanfei Fan ◽  
Yan Liu ◽  
Hongyu Cui ◽  
Wen Wang ◽  
Qiaoyan Shang ◽  
...  
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Oxygen Vacancies ◽  
Low Cost ◽  
Energy Levels ◽  
Light Response ◽  
Hydrogen Energy ◽  
Surface Oxygen ◽  
Carbon Reduction ◽  
Overall Water Splitting

Strontium Titanate has a typical perovskite structure with advantages of low cost and photochemical stability. However, the wide bandgap and rapid recombination of electrons and holes limited its application in photocatalysis. In this work, a SrTiO3 material with surface oxygen vacancies was synthesized via carbon reduction under a high temperature. It was successfully applied for photocatalytic overall water splitting to produce clean hydrogen energy under visible light irradiation without any sacrificial reagent for the first time. The photocatalytic overall water splitting ability of the as-prepared SrTiO3-C950 is attributed to the surface oxygen vacancies that can make suitable energy levels for visible light response, improving the separation and transfer efficiency of photogenerated carriers.

3D Hierarchical Network Derived from 2D Fe-doped NiSe Nanosheets/Carbon Nanotubes with Enhanced OER Performance for Overall Water Splitting

2022 ◽  
Author(s):  
Kai Chang ◽  
Duy Thanh Tran ◽  
Jingqiang Wang ◽  
Nam Hoon Kim ◽  
Joong Hee Lee
Keyword(s):  
Carbon Nanotubes ◽  
High Activity ◽  
Water Splitting ◽  
Electrode Material ◽  
Hydrogen Energy ◽  
Hierarchical Network ◽  
Overall Water Splitting ◽  
Earth Abundant

Designing an earth-abundant electrode material with high activity and durability is a major challenge for water splitting to produce clean and green hydrogen energy. In this study, we reported a...

Local Magnetic Field Promoted Photocatalytic Overall Water Splitting with Remarkable Solar-to-Hydrogen Efficiency

2022 ◽  
Author(s):  
Yiyang Li ◽  
Zihan Wang ◽  
Yiqi Wang ◽  
Andras Kovacs ◽  
Christopher Foo ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Solar Energy ◽  
Water Splitting ◽  
Local Magnetic Field ◽  
Overall Water Splitting ◽  
Ideal Approach

The photocatalytic overall water splitting (POWS) reaction using particulate catalysts is considered as an ideal approach for capturing solar energy and storing it in the form of hydrogen, however, current...

The dual-defective SnS2 monolayers: promising 2D photocatalysts for overall water splitting

2019 ◽  
Vol 21 (48) ◽  
pp. 26292-26300 ◽  
Author(s):  
Batjargal Sainbileg ◽  
Ying-Ren Lai ◽  
Li-Chyong Chen ◽  
Michitoshi Hayashi
Keyword(s):  
Solar Energy ◽  
Water Splitting ◽  
Hydrogen Fuel ◽  
Photocatalytic Water Splitting ◽  
Overall Water Splitting ◽  
Dual Defective

Photocatalytic water splitting on the dual-defective SnS2 monolayer is a promising way to produce hydrogen fuel from solar energy.

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