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

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...

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

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.

Enhanced Visible-Light Absorption and Photocurrent Generation of Three-Dimensional Metal–Dielectric Hybrid-Structured Films

2021 ◽  
Author(s):  
Zhenlei Wang ◽  
Liwen Lai ◽  
Tianfu Zhang ◽  
Sanming Wu ◽  
Jie Zhao ◽  
...  
Keyword(s):  
Visible Light ◽  
Light Absorption ◽  
Three Dimensional ◽  
Visible Light Absorption ◽  
Photocurrent Generation

Tailored near-infrared-emitting colloidal heterostructured quantum dots with enhanced visible light absorption for high performance photoelectrochemical cells

2019 ◽  
Vol 7 (17) ◽  
pp. 10225-10230 ◽  
Author(s):  
Ali Imran Channa ◽  
Xin Tong ◽  
Jing-Yin Xu ◽  
Yongchen Liu ◽  
Changmeng Wang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Visible Light ◽  
Light Absorption ◽  
High Performance ◽  
Near Infrared ◽  
High Efficiency ◽  
Photoelectrochemical Cells ◽  
Visible Light Absorption ◽  
Cds Qds

Near-infrared-emitting CuGaS2/CdS QDs with enhanced visible light absorption were developed to achieve high efficiency photoelectrochemical cells.

Zr doped mesoporous LaTaON2 for efficient photocatalytic water splitting

2019 ◽  
Vol 7 (10) ◽  
pp. 5702-5711 ◽  
Author(s):  
Yawei Wang ◽  
Shu Jin ◽  
Guoxiang Pan ◽  
Zuxin Li ◽  
Long Chen ◽  
...  
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Light Absorption ◽  
Visible Light Absorption ◽  
Photocatalytic Water Splitting ◽  
Photocatalytic Activities

Zr doping maintains the visible light absorption of LaTaON2 and contributes to enhanced photocatalytic activities for water splitting.

Enhancing visible-light photoelectrochemical water splitting through transition-metal doped TiO2 nanorod arrays

2014 ◽  
Vol 2 (42) ◽  
pp. 17820-17827 ◽  
Author(s):  
Chengzhi Wang ◽  
Zhuo Chen ◽  
Haibo Jin ◽  
Chuanbao Cao ◽  
Jingbo Li ◽  
...  
Keyword(s):  
Transition Metal ◽  
Visible Light ◽  
Water Splitting ◽  
Photoelectrochemical Water Splitting ◽  
Transition Metal Doping ◽  
Nanorod Arrays ◽  
Visible Light Region ◽  
Light Region ◽  
Tio2 Nanorod Arrays ◽  
Metal Doped

Transition metal doping substantially improves the performance of TiO2 nanorods for photoelectrochemical water splitting in the visible light region.

Rapid low-temperature solution growth of ZnO:Co nanorod arrays with controllable visible light absorption

CrystEngComm ◽  
2017 ◽  
Vol 19 (14) ◽  
pp. 1938-1946 ◽  
Author(s):  
Jan Kegel ◽  
Jennifer Halpin ◽  
Fathima Laffir ◽  
Ian M. Povey ◽  
Martyn E. Pemble
Keyword(s):  
Low Temperature ◽  
Visible Light ◽  
Light Absorption ◽  
Solution Growth ◽  
Nanorod Arrays ◽  
Visible Light Absorption ◽  
Temperature Solution

Three-dimensional plasmonic photoanode of Co3O4 nanosheets coated onto TiO2 nanorod arrays for visible-light-driven water splitting

2019 ◽  
Vol 44 (29) ◽  
pp. 14561-14570 ◽  
Author(s):  
Xin Zhao ◽  
Wenzhong Wang ◽  
Yujie Liang ◽  
Lizhen Yao ◽  
Junli Fu ◽  
...  
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Three Dimensional ◽  
Nanorod Arrays ◽  
Tio2 Nanorod ◽  
Tio2 Nanorod Arrays ◽  
Visible Light Driven
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