The synergistic role with photosensitivity effect and extended space charge region on inorganic-organic WO3/PANI photoanode for efficient PEC water splitting

2021 ◽  
Author(s):  
Zhichao Hao ◽  
Mengnan Ruan ◽  
Zhengang Guo ◽  
Weiguo Yan ◽  
Xiangfeng Wu ◽  
...  
Keyword(s):  
Space Charge ◽  
Water Splitting ◽  
Space Charge Region ◽  
Light Absorption ◽  
Extended Space ◽  
Carrier Separation ◽  
Pec Water Splitting

The predicaments of poor carrier separation and light absorption need be overcome in order to maximize the preeminent performances of WO3 in photoelectrochemical (PEC) water splitting. Hence, we firstly prepared...

ZnO photoelectrode simultaneously modified with Cu2O and Co-Pi based on broader light absorption and efficiently photogenerated carrier separation

2018 ◽  
Vol 5 (10) ◽  
pp. 2571-2578 ◽  
Author(s):  
Chonghao Ma ◽  
Zhifeng Liu ◽  
Qijun Cai ◽  
Changcun Han ◽  
Zhengfu Tong
Keyword(s):  
Water Splitting ◽  
Light Absorption ◽  
Photogenerated Carrier ◽  
Carrier Separation ◽  
Pec Water Splitting

A ZnO/Cu2O/Co-Pi photoelectrode is applied in PEC water splitting, improving the light absorption and photogenerated carrier separation.

scholarly journals Efficient solar-driven water splitting by nanocone BiVO4-perovskite tandem cells

2016 ◽  
Vol 2 (6) ◽  
pp. e1501764 ◽  
Author(s):  
Yongcai Qiu ◽  
Wei Liu ◽  
Wei Chen ◽  
Wei Chen ◽  
Guangmin Zhou ◽  
...  
Keyword(s):  
Water Splitting ◽  
Light Absorption ◽  
Diffusion Length ◽  
Narrow Band ◽  
Low Cost ◽  
High Water ◽  
Hydrogen Electrode ◽  
Efficient Charge ◽  
Multiple Light Scattering ◽  
Pec Water Splitting

Bismuth vanadate (BiVO4) has been widely regarded as a promising photoanode material for photoelectrochemical (PEC) water splitting because of its low cost, its high stability against photocorrosion, and its relatively narrow band gap of 2.4 eV. However, the achieved performance of the BiVO4 photoanode remains unsatisfactory to date because its short carrier diffusion length restricts the total thickness of the BiVO4 film required for sufficient light absorption. We addressed the issue by deposition of nanoporous Mo-doped BiVO4 (Mo:BiVO4) on an engineered cone-shaped nanostructure, in which the Mo:BiVO4 layer with a larger effective thickness maintains highly efficient charge separation and high light absorption capability, which can be further enhanced by multiple light scattering in the nanocone structure. As a result, the nanocone/Mo:BiVO4/Fe(Ni)OOH photoanode exhibits a high water-splitting photocurrent of 5.82 ± 0.36 mA cm−2 at 1.23 V versus the reversible hydrogen electrode under 1-sun illumination. We also demonstrate that the PEC cell in tandem with a single perovskite solar cell exhibits unassisted water splitting with a solar-to-hydrogen conversion efficiency of up to 6.2%.

The van der Waals CdO/PtS2 heterostructures for photocatalytic water splitting with excellent carrier separation and light absorption

2021 ◽  
Author(s):  
Iqtidar Ahmad ◽  
Ismail Shahid ◽  
Anwar Ali ◽  
Shakeel Zeb ◽  
Lei Gao ◽  
...  
Keyword(s):  
Water Splitting ◽  
Light Absorption ◽  
Fossil Fuels ◽  
Van Der Waals ◽  
Environmental Issues ◽  
Photocatalytic Water Splitting ◽  
The Core ◽  
Carrier Separation

To overcome the regular exhaustion of fossil fuels and environmental issues, the hydrogen creation by photocatalytic water splitting has turn into the core heart of modern research. Here, the van...

Synchronization of charge carrier separation by tailoring the interface of Si–Au–TiO2 heterostructures via click chemistry for PEC water splitting

2016 ◽  
Vol 154 ◽  
pp. 150-169 ◽  
Author(s):  
Dilip Kumar Behara ◽  
Gyan Prakash Sharma ◽  
Arun Prakash Upadhyay ◽  
Maurya Gyanprakash ◽  
Raj Ganesh S Pala ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Click Chemistry ◽  
Water Splitting ◽  
Carrier Separation ◽  
Pec Water Splitting

scholarly journals Photochemical charge transfer observed in nanoscale hydrogen evolving photocatalysts using surface photovoltage spectroscopy

2015 ◽  
Vol 8 (10) ◽  
pp. 2970-2976 ◽  
Author(s):  
J. Wang ◽  
J. Zhao ◽  
F. E. Osterloh
Keyword(s):  
Charge Transfer ◽  
Space Charge ◽  
Water Splitting ◽  
Surface Photovoltage ◽  
Solar Water ◽  
Surface Photovoltage Spectroscopy ◽  
Solar Water Splitting ◽  
Inorganic Nanostructures ◽  
Carrier Separation

The application of inorganic nanostructures for solar water splitting is currently limited by our understanding of photochemical charge transfer on the nanoscale, where space charge layers are less effective for carrier separation.

A ZnO/ZnFe2O4 uniform core–shell heterojunction with a tubular structure modified by NiOOH for efficient photoelectrochemical water splitting

2018 ◽  
Vol 47 (35) ◽  
pp. 12181-12187 ◽  
Author(s):  
Yayao Lan ◽  
Zhifeng Liu ◽  
Zhengang Guo ◽  
Xifei Li ◽  
Lei Zhao ◽  
...  
Keyword(s):  
Water Splitting ◽  
Light Absorption ◽  
Tubular Structure ◽  
Photoelectrochemical Water Splitting ◽  
Core Shell ◽  
Pec Water Splitting

It is known that heterojunction photoelectrodes can improve light absorption and accelerate the separation of photogenerated carriers in the field of photoelectrochemical (PEC) water splitting.

Hand-in-hand quantum dot assembly sensitized photocathodes for enhanced photoelectrochemical hydrogen evolution

2019 ◽  
Vol 7 (45) ◽  
pp. 26098-26104
Author(s):  
Hao-Lin Wu ◽  
Xu-Bing Li ◽  
Yang Wang ◽  
Shuai Zhou ◽  
Ya-Jing Chen ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Quantum Dot ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Light Absorption ◽  
Better Than ◽  
Pec Water Splitting

A hand-in-hand QD assembly sensitized photocathode with extended light absorption and oriented charge transfer is established for enhanced PEC water splitting, which is comparable to or even better than those external cocatalyst-assisted systems.

scholarly journals Unravelling Photocarrier Dynamics beyond the Space Charge Region for Photoelectrochemical Water Splitting

2017 ◽  
Vol 29 (9) ◽  
pp. 4036-4043 ◽  
Author(s):  
Wenrui Zhang ◽  
Danhua Yan ◽  
Kannatassen Appavoo ◽  
Jiajie Cen ◽  
Qiyuan Wu ◽  
...  
Keyword(s):  
Space Charge ◽  
Water Splitting ◽  
Space Charge Region ◽  
Photoelectrochemical Water Splitting
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