Carrier Engineering of Zr-mediated Ta3N5 Film as Efficient Photoanode for Solar Water Splitting

2021 ◽  
Author(s):  
Xin Zou ◽  
Xueyang Han ◽  
Chengxiong Wang ◽  
Yunkun Zhao ◽  
Chun Du ◽  
...  
Keyword(s):  
Band Structure ◽  
Visible Light ◽  
Water Splitting ◽  
Light Absorption ◽  
Photoelectrochemical Water Splitting ◽  
Promising Candidate ◽  
Visible Light Absorption ◽  
Solar Water ◽  
Solar Water Splitting

Ta3N5 is regarded as a promising candidate material with adequate visible light absorption and band structure for photoelectrochemical water splitting. However, the performance of Ta3N5 is severely limited by the...

Development of Mixed‐Anion Photocatalysts with Wide Visible‐Light Absorption Bands for Solar Water Splitting

ChemSusChem ◽  
2018 ◽  
Vol 12 (9) ◽  
pp. 1872-1888 ◽  
Author(s):  
Junyan Cui ◽  
Can Li ◽  
Fuxiang Zhang
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Light Absorption ◽  
Absorption Bands ◽  
Visible Light Absorption ◽  
Solar Water ◽  
Solar Water Splitting

scholarly journals The synergistic effect of cation mixing in mesoporous BixFe1−xVO4 heterojunction photoanodes for solar water splitting

2019 ◽  
Vol 7 (24) ◽  
pp. 14816-14824 ◽  
Author(s):  
Mengyuan Zhang ◽  
Huu Khue Pham ◽  
Yanan Fang ◽  
Ying Fan Tay ◽  
Fatwa F. Abdi ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Synergistic Effect ◽  
Visible Light ◽  
Water Splitting ◽  
Light Absorption ◽  
Visible Light Absorption ◽  
Solar Water ◽  
Solar Water Splitting ◽  
Interesting Class ◽  
Cation Mixing

Mixed metal vanadates are an interesting class of materials due to their favorable bandgap for visible light absorption and their catalytic activity.

Increased Visible Light Absorption and Charge Separation in 2D-3D In 2S 3-ZnO Heterojunctions for Enhanced Photoelectrochemical Water Splitting

2021 ◽  
Author(s):  
Narinder Kaur ◽  
Abhishek Ghosh ◽  
Mujeeb Ahmad ◽  
Dipika Sharma ◽  
Rajendra Singh ◽  
...  
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Light Absorption ◽  
Charge Separation ◽  
Photoelectrochemical Water Splitting ◽  
Visible Light Absorption

How bubbles affect light absorption in photoelectrodes for solar water splitting?

2022 ◽  
Author(s):  
Abhinav Bhanawat ◽  
Keyong Zhu ◽  
Laurent Pilon
Keyword(s):  
Water Splitting ◽  
Light Absorption ◽  
Incident Light ◽  
Gas Bubbles ◽  
Photoelectrochemical Water Splitting ◽  
Solar Water ◽  
Solar Water Splitting

This paper aims to systematically investigate the effect of gas bubbles formation on the performance of a horizontal photoelectrode exposed to normally incident light during photoelectrochemical water splitting. The presence...

CdS-Based Photocatalysts for Solar Water Splitting

2021 ◽  
Vol 02 ◽  
Author(s):  
Yimeng Cao ◽  
Chuhong Zhu ◽  
Taotao Wang ◽  
Daochuan Jiang ◽  
Sheng Ye
Keyword(s):  
Photocatalytic Activity ◽  
Hydrogen Production ◽  
Visible Light ◽  
Water Splitting ◽  
Light Absorption ◽  
Narrow Band ◽  
Heteroatom Doping ◽  
Visible Light Absorption ◽  
Solar Water Splitting ◽  
Band Position

: Photocatalytic water splitting for hydrogen production is a promising pathway for solar energy convention into chemicals. Among various semiconductor-based photocatalysts, cadmium sulfide (CdS) attracted extensive attentions due to the narrow band gap nature (2.4 eV) for efficient visible light absorption, suitable band position for water splitting, and outstanding photocatalytic activity. In this review, we summarize the recent advances for the synthesis of CdS, and modification strategies including heteroatom doping, loading cocatalysts, and hetero/homo-junction fabrication are also presented. Moreover, a brief perspective and challenges on CdS-based photocatalyst are also discussed.

Hierarchical three-dimensional branched hematite nanorod arrays with enhanced mid-visible light absorption for high-efficiency photoelectrochemical water splitting

Nanoscale ◽  
2016 ◽  
Vol 8 (25) ◽  
pp. 12697-12701 ◽  
Author(s):  
Degao Wang ◽  
Guoliang Chang ◽  
Yuying Zhang ◽  
Jie Chao ◽  
Jianzhong Yang ◽  
...  
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Light Absorption ◽  
High Efficiency ◽  
Three Dimensional ◽  
Photoelectrochemical Water Splitting ◽  
Nanorod Arrays ◽  
Visible Light Absorption

One-step synthesis of novel Cu2ZnNiO3 complex oxide nanowires with tuned band gap for photoelectrochemical water splitting

2020 ◽  
Vol 53 (6) ◽  
pp. 1425-1433
Author(s):  
Aya Amin ◽  
Ali El-dissouky
Keyword(s):  
Visible Light ◽  
Band Gap ◽  
Water Splitting ◽  
Light Absorption ◽  
Complex Oxide ◽  
Photoelectrochemical Water Splitting ◽  
Visible Light Absorption ◽  
Oxide Nanowires ◽  
Tauc Plot ◽  
One Step

Although alloying and nanostructuring offer a great opportunity for enhancing photoelectrochemical behavior and band gap tuning, these methods have not been investigated extensively. This article reports the synthesis of Cu2ZnNiO3 complex oxide nanowires (∼200 nm) grown on German silver alloy via a one-step optimized hydrothermal route and their utilization to split water photoelectrochemically. Surface characterizations were used to elucidate the formation mechanism of the Cu2ZnNiO3 complex oxide nanowires. The nanowires exhibited an exceptional visible light absorption extending from 400 to 1400 nm wavelengths with a tuned band gap of ∼2.88 eV calculated from the corresponding Tauc plot. In tests to split water photoelectrochemically, the nanowires generated a significant photocurrent of up to −2.5 mA cm−2 at −0.8 V versus Ag/AgCl and exhibited an exceptional photostability which exceeded 2 h under light-off conditions with no photocurrent decay. Band edge positions related to water redox potentials were estimated via Mott–Schottky and diffuse reflectance spectroscopy analysis with the density of charge carriers reaching as high as 5.15 × 1018 cm−3. Moreover, the nanowires generated ∼1100 µmol of H2 in 5 h. These photoelectrochemical results are much higher than the reported values for similar structures of copper oxide, zinc oxide and nickel oxide separately under the same conditions, which can be attributed to the advantages of Cu, Zn and Ni oxides (such as visible light absorption, photostability, and efficient charge carrier generation and transport) being combined in one single material. These promising results make German silver a robust material toward photoelectrochemical water splitting.

Enhancing Solar Water Splitting of Textured BiVO4 by Dual Effect of a Plasmonic Silver Nanoshell: Plasmon-Induced Light Absorption and Enhanced Hole Transport

2020 ◽  
Vol 3 (12) ◽  
pp. 11886-11892
Author(s):  
Salim Caliskan ◽  
Jung Kyu Kim ◽  
Gill Sang Han ◽  
Fen Qin ◽  
In Sun Cho ◽  
...  
Keyword(s):  
Water Splitting ◽  
Light Absorption ◽  
Hole Transport ◽  
Dual Effect ◽  
Solar Water ◽  
Solar Water Splitting
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