A dendritic Sb2Se3/In2S3 heterojunction nanorod array photocathode decorated with a MoSx catalyst for efficient solar hydrogen evolution

2020 ◽  
Vol 8 (44) ◽  
pp. 23385-23394
Author(s):  
Chang Liu ◽  
Tao Liu ◽  
Yingzheng Li ◽  
Ziqi Zhao ◽  
Dinghua Zhou ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Conversion Efficiency ◽  
Nanorod Array ◽  
Molybdenum Sulfide ◽  
Nanorod Arrays ◽  
Sulfide Catalyst ◽  
Solar Hydrogen

Sb2Se3 nanorod arrays were modified with an n-type In2S3 layer and a layer of molybdenum sulfide catalyst to form p–n heterojunction photocathodes. A photocurrent of −27 mA cm−2 with a solar-to-hydrogen conversion efficiency of 2.6% can be obtained.

Generation of Ni3S2 nanorod arrays with high-density bridging S22− by introducing a small amount of Na3VO4·12H2O for superior hydrogen evolution reaction

Nanoscale ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 2063-2070
Author(s):  
Dan Yang ◽  
Liyun Cao ◽  
Jianfeng Huang ◽  
Koji Kajiyoshi ◽  
Li Feng ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Nanorod Array ◽  
High Density ◽  
Nanorod Arrays

A novel Ni3S2 nanorod array with high-density bridging S22− sites is prepared and it exhibits superior hydrogen evolution performance.

scholarly journals Polymer-Brush-Templated Three-Dimensional Molybdenum Sulfide Catalyst for Hydrogen Evolution

2018 ◽  
Vol 10 (7) ◽  
pp. 6253-6261 ◽  
Author(s):  
Lucas-Alexandre Stern ◽  
Piotr Mocny ◽  
Heron Vrubel ◽  
Tugba Bilgic ◽  
Harm-Anton Klok ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Polymer Brush ◽  
Three Dimensional ◽  
Molybdenum Sulfide ◽  
Sulfide Catalyst

Silicon Decorated with Amorphous Cobalt Molybdenum Sulfide Catalyst as an Efficient Photocathode for Solar Hydrogen Generation

ACS Nano ◽  
2015 ◽  
Vol 9 (4) ◽  
pp. 3829-3836 ◽  
Author(s):  
Yang Chen ◽  
Phong D. Tran ◽  
Pablo Boix ◽  
Yi Ren ◽  
Sing Yang Chiam ◽  
...  
Keyword(s):  
Hydrogen Generation ◽  
Molybdenum Sulfide ◽  
Sulfide Catalyst ◽  
Solar Hydrogen

Architecting smart “umbrella” Bi2S3/rGO-modified TiO2 nanorod array structures at the nanoscale for efficient photoelectrocatalysis under visible light

2015 ◽  
Vol 3 (3) ◽  
pp. 1235-1242 ◽  
Author(s):  
Xiaodeng Wang ◽  
Jiale Xie ◽  
Chang Ming Li
Keyword(s):  
Visible Light ◽  
Conversion Efficiency ◽  
Light Absorption ◽  
Nanorod Array ◽  
High Light ◽  
Nanorod Arrays ◽  
Edge Structure ◽  
High Conversion Efficiency ◽  
Tio2 Nanorod Array ◽  
Array Structures

Umbrella hybrid (Bi2S3/rGO)5/TiO2 nanorod arrays with high light absorption and stepwise band-edge structure accomplish high conversion efficiency under visible light.

scholarly journals Wittichenite semiconductor of Cu3BiS3 films for efficient hydrogen evolution from solar driven photoelectrochemical water splitting

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Dingwang Huang ◽  
Lintao Li ◽  
Kang Wang ◽  
Yan Li ◽  
Kuang Feng ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Low Cost ◽  
Solar Hydrogen ◽  
Onset Potential ◽  
Term Stability ◽  
Long Term Stability ◽  
Solar Water Splitting ◽  
Current Densities

AbstractA highly efficient, low-cost and environmentally friendly photocathode with long-term stability is the goal of practical solar hydrogen evolution applications. Here, we found that the Cu3BiS3 film-based photocathode meets the abovementioned requirements. The Cu3BiS3-based photocathode presents a remarkable onset potential over 0.9 VRHE with excellent photoelectrochemical current densities (~7 mA/cm2 under 0 VRHE) and appreciable 10-hour long-term stability in neutral water solutions. This high onset potential of the Cu3BiS3-based photocathode directly results in a good unbiased operating photocurrent of ~1.6 mA/cm2 assisted by the BiVO4 photoanode. A tandem device of Cu3BiS3-BiVO4 with an unbiased solar-to-hydrogen conversion efficiency of 2.04% is presented. This tandem device also presents high stability over 20 hours. Ultimately, a 5 × 5 cm2 large Cu3BiS3-BiVO4 tandem device module is fabricated for standalone overall solar water splitting with a long-term stability of 60 hours.

Efficient photocathode performance of lithium ion doped LaFeO3 nanorod arrays in hydrogen evolution

2021 ◽  
Vol 45 (7) ◽  
pp. 3463-3468
Author(s):  
Yang Li ◽  
Tao Wang ◽  
Bin Gao ◽  
Xiaoli Fan ◽  
Hao Gong ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Lithium Ion ◽  
Nanorod Arrays ◽  
Water Reduction

Li-doped LaFeO3 nanorod arrays are used in photoelectrochemical water reduction.

Recasting Ni-foam into NiF2 nanorod arrays via a hydrothermal process for hydrogen evolution reaction application

2021 ◽  
Author(s):  
Nanasaheb M. Shinde ◽  
Siddheshwar D. Raut ◽  
Balaji G. Ghule ◽  
Krishna Chaitanya Gunturu ◽  
James J. Pak ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Nickel Foam ◽  
Hydrothermal Process ◽  
Reduction Process ◽  
Nanorod Arrays ◽  
Ni Foam

A promising electrode for hydrogen evolution reaction (HER) has been prepared via a reduction process to form NiF2 nanorod arrays directly grown on a 3D nickel foam.

Facile Synthesis of a Porous ZnO Nanorod Array with Enhanced Photocatalysis for Photoelectrochemical Water Splitting Application

2020 ◽  
Vol 20 (6) ◽  
pp. 3512-3518
Author(s):  
Saleh Khan ◽  
Xiao-He Liu ◽  
Xi Jiang ◽  
Qing-Yun Chen
Keyword(s):  
Annealing Temperature ◽  
Zno Nanorods ◽  
Nanorod Array ◽  
Photocurrent Density ◽  
Zno Nanorod ◽  
Nanorod Arrays ◽  
Zno Nanorod Arrays ◽  
Irradiation Intensity ◽  
Heat Treated ◽  
Positive Effect

Highly efficient and effective porous ZnO nanorod arrays were fabricated by annealing ZnO nanorod arrays grown on a substrate using a simple hydrothermal method. The annealing had a positive effect on the nanorod morphology, structure and optical properties. The porosity was closely related to the annealing temperature. After heating at 450 °C, pores appeared on the nanorods. It was demonstrated that the porosity could be exploited to improve the visible light absorption of ZnO and reduce the bandgap from 3.11 eV to 2.99 eV. A combination of improved charge separation and transport of the heat-treated ZnO thus led to an increase in the photoelectrochemical properties. At an irradiation intensity of 100 mW/cm−2, the photocurrent density of the porous nanorod array was approximately 1.3 mA cm−2 at 1.2 V versus Ag/AgCl, which was five times higher than that of the ZnO nanorods. These results revealed the synthesis of promising porous ZnO nanorods for photoelectrochemical applications.

3D flexible hydrogen evolution electrodes with Se-promoted molybdenum sulfide nanosheet arrays

RSC Advances ◽  
2016 ◽  
Vol 6 (14) ◽  
pp. 11077-11080 ◽  
Author(s):  
Zonghua Pu ◽  
Shiyong Wei ◽  
Zhibao Chen ◽  
Shichun Mu
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Molybdenum Sulfide ◽  
Carbon Cloth ◽  
Nanosheet Arrays

Se-promoted molybdenum sulfide nanosheet arrays supported on carbon cloth are developed as a novel electrocatalyst for hydrogen evolution reaction.

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