Stable solar-driven water splitting by anodic ZnO nanotubular semiconducting photoanodes

RSC Advances ◽  
2016 ◽  
Vol 6 (83) ◽  
pp. 80221-80225 ◽  
Author(s):  
Alaa Y. Faid ◽  
Nageh K. Allam
Keyword(s):  
Solar Energy ◽  
Water Splitting ◽  
High Performance ◽  
Chemical Bonds ◽  
Artificial Photosynthetic

The development of high performance artificial photosynthetic devices, to store solar energy in chemical bonds, requires the existence of stable light-absorbing electrodes for both the oxidative and reductive half-reactions.

An artificial photosynthetic system with CO2-reducing solar-to-fuel efficiency exceeding 20%

2020 ◽  
Vol 8 (35) ◽  
pp. 18310-18317 ◽  
Author(s):  
Yanjun Xiao ◽  
Yao Qian ◽  
Anqi Chen ◽  
Tian Qin ◽  
Fan Zhang ◽  
...  
Keyword(s):  
Solar Energy ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Fuel Efficiency ◽  
Photosynthetic System ◽  
Artificial Photosynthetic ◽  
Renewable Hydrogen

Artificial photosynthetic systems store solar energy in chemical fuels via CO2 reduction or renewable hydrogen evolution from water splitting.

High performance duckweed-derived carbon support to anchor NiFe electrocatalysts for efficient solar energy driven water splitting

2018 ◽  
Vol 6 (39) ◽  
pp. 18948-18959 ◽  
Author(s):  
Ashwani Kumar ◽  
Dhirendra K. Chaudhary ◽  
Sahanaz Parvin ◽  
Sayan Bhattacharyya
Keyword(s):  
Solar Cells ◽  
Solar Energy ◽  
Water Splitting ◽  
High Performance ◽  
Carbon Support

NiFe nanoparticle electrocatalysts, supported on duckweed-derived carbon, splits water at 1.61 V and provides a 9.7% solar-to-hydrogen efficiency when connected to solar cells.

Interfacial engineering of nickel/iron/ruthenium phosphides for efficient overall water splitting powered by solar energy

2021 ◽  
Author(s):  
Sheng-Hao Cai ◽  
Xiao-Nan Chen ◽  
Meng-Jie Huang ◽  
Ji-Yuan Han ◽  
Yu-Wei Zhou ◽  
...  
Keyword(s):  
Solar Energy ◽  
Water Splitting ◽  
High Performance ◽  
Low Cost ◽  
Bifunctional Catalysts ◽  
Nickel Iron ◽  
Interfacial Engineering ◽  
Overall Water Splitting ◽  
Electrochemical Water Splitting

Exploiting high-performance, low-cost, and robust bifunctional catalysts toward electrochemical water splitting is of great importance, but remains challenging. Herein, a novel hybrid electrocatalyst of Ni-Fe-Ru-based phosphide heterostructures directly grown on...

Rational design of NixCoyP@C cocatalyst for enhanced overall water splitting based on g-C3N4 photocatalyst — the synergy of carbon-shell modification and bimetal modulation

2022 ◽  
Author(s):  
Tingfeng Zhang ◽  
Xuefang Lan ◽  
Lili Wang ◽  
Jinsheng Shi ◽  
Kefeng Xiao
Keyword(s):  
Solar Energy ◽  
Water Splitting ◽  
High Performance ◽  
Rational Design ◽  
Large Scale ◽  
Low Cost ◽  
H2 Production ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Core Shell Nanoparticles

Developing high-performance and low-cost cocatalyst is crucial to realize large-scale H2 production using solar energy. Herein, a non-precious NixCoy-P@C core-shell nanoparticles (NPs) is synthesized as a high active cocatalyst for...

scholarly journals Tailoring the Defects of Sub-100 nm Multipodal Titanium Nitride/Oxynitride Nanotubes for Efficient Water Splitting Performance

2021 ◽  
Author(s):  
Kamel Eid ◽  
Mostafa H Sliem ◽  
Aboubakr M Abdullah
Keyword(s):  
Solar Energy ◽  
Titanium Nitride ◽  
Energy Conversion ◽  
Water Splitting ◽  
High Performance ◽  
Rational Design ◽  
Solar Energy Conversion ◽  
Relationship Of ◽  
The Way

Deciphering the photocatalytic-defects relationship of the photoanodes can pave the way towards the rational design of high-performance solar energy conversion. Herein, we rationally designed uniform and aligned ultrathin sub-100 nm...

Efficient Co-Harvesting of Solar Energy and Low-Grade Heat by Molecular Photoswitches for High Energy Density, Long-Term Stable Solar Thermal Battery

2019 ◽  
Author(s):  
Zhao-Yang Zhang ◽  
Tao LI
Keyword(s):  
Energy Density ◽  
Solar Energy ◽  
High Performance ◽  
High Energy ◽  
Solar Thermal ◽  
High Energy Density ◽  
Low Grade ◽  
Thermal Battery ◽  
Low Grade Heat

Solar energy and ambient heat are two inexhaustible energy sources for addressing the global challenge of energy and sustainability. Solar thermal battery based on molecular switches that can store solar energy and release it as heat has recently attracted great interest, but its development is severely limited by both low energy density and short storage stability. On the other hand, the efficient recovery and upgrading of low-grade heat, especially that of the ambient heat, has been a great challenge. Here we report that solar energy and ambient heat can be simultaneously harvested and stored, which is enabled by room-temperature photochemical crystal-to-liquid transitions of small-molecule photoswitches. The two forms of energy are released together to produce high-temperature heat during the reverse photochemical phase change. This strategy, combined with molecular design, provides high energy density of 320-370 J/g and long-term storage stability (half-life of about 3 months). On this basis, we fabricate high-performance, flexible film devices of solar thermal battery, which can be readily recharged at room temperature with good cycling ability, show fast rate of heat release, and produce high-temperature heat that is >20<sup> o</sup>C higher than the ambient temperature. Our work opens up a new avenue to harvest ambient heat, and demonstrate a feasible strategy to develop high-performance solar thermal battery.

Efficient Co-Harvesting of Solar Energy and Low-Grade Heat by Molecular Photoswitches for High Energy Density, Long-Term Stable Solar Thermal Battery

2019 ◽  
Author(s):  
Zhao-Yang Zhang ◽  
Tao LI
Keyword(s):  
Energy Density ◽  
Solar Energy ◽  
High Performance ◽  
High Energy ◽  
Solar Thermal ◽  
High Energy Density ◽  
Low Grade ◽  
Thermal Battery ◽  
Low Grade Heat

Solar energy and ambient heat are two inexhaustible energy sources for addressing the global challenge of energy and sustainability. Solar thermal battery based on molecular switches that can store solar energy and release it as heat has recently attracted great interest, but its development is severely limited by both low energy density and short storage stability. On the other hand, the efficient recovery and upgrading of low-grade heat, especially that of the ambient heat, has been a great challenge. Here we report that solar energy and ambient heat can be simultaneously harvested and stored, which is enabled by room-temperature photochemical crystal-to-liquid transitions of small-molecule photoswitches. The two forms of energy are released together to produce high-temperature heat during the reverse photochemical phase change. This strategy, combined with molecular design, provides high energy density of 320-370 J/g and long-term storage stability (half-life of about 3 months). On this basis, we fabricate high-performance, flexible film devices of solar thermal battery, which can be readily recharged at room temperature with good cycling ability, show fast rate of heat release, and produce high-temperature heat that is >20<sup> o</sup>C higher than the ambient temperature. Our work opens up a new avenue to harvest ambient heat, and demonstrate a feasible strategy to develop high-performance solar thermal battery.

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