scholarly journals Tungsten oxide-coated copper gallium selenide sustains long-term solar hydrogen evolution

2021 ◽  
Author(s):  
David W. Palm ◽  
Christopher P. Muzzillo ◽  
Micha Ben-Naim ◽  
Imran Khan ◽  
Nicolas Gaillard ◽  
...  
Keyword(s):  
Tungsten Oxide ◽  
Hydrogen Evolution ◽  
Gallium Selenide ◽  
Solar Hydrogen ◽  
Copper Gallium Selenide

Employs ultrathin WO3 coatings on CuGa3Se5 photocathodes to achieve a new durability milestone for solar hydrogen evolution on a non-silicon absorber.

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.

Photoelectrochemical Hydrogen Evolution from Water Using Copper Gallium Selenide Electrodes Prepared by a Particle Transfer Method

2014 ◽  
Vol 118 (30) ◽  
pp. 16386-16392 ◽  
Author(s):  
Hiromu Kumagai ◽  
Tsutomu Minegishi ◽  
Yosuke Moriya ◽  
Jun Kubota ◽  
Kazunari Domen
Keyword(s):  
Hydrogen Evolution ◽  
Gallium Selenide ◽  
Particle Transfer ◽  
Copper Gallium Selenide ◽  
Transfer Method

Rationally Designed n-n Heterojunction with Highly Efficient Solar Hydrogen Evolution

ChemSusChem ◽  
2015 ◽  
Vol 8 (7) ◽  
pp. 1218-1225 ◽  
Author(s):  
Miao Xu ◽  
Tiannan Ye ◽  
Fang Dai ◽  
Jindi Yang ◽  
Jingmei Shen ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Solar Hydrogen ◽  
Highly Efficient

scholarly journals Self-Assembled Framework Enhances Electronic Communication of Ultrasmall-Sized Nanoparticles for Exceptional Solar Hydrogen Evolution

2017 ◽  
Vol 139 (13) ◽  
pp. 4789-4796 ◽  
Author(s):  
Xu-Bing Li ◽  
Yu-Ji Gao ◽  
Yang Wang ◽  
Fei Zhan ◽  
Xiao-Yi Zhang ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Electronic Communication ◽  
Solar Hydrogen ◽  
Self Assembled

Nanostructured molybdenum phosphide/N,P dual-doped carbon nanotube composite as electrocatalysts for hydrogen evolution

RSC Advances ◽  
2016 ◽  
Vol 6 (9) ◽  
pp. 7370-7377 ◽  
Author(s):  
Yang Zhao ◽  
Shuo Wang ◽  
Chunyan Li ◽  
Xianbo Yu ◽  
Chunling Zhu ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Hydrogen Evolution ◽  
Alkaline Media ◽  
Term Stability ◽  
Long Term Stability ◽  
Excellent Activity ◽  
Molybdenum Phosphide ◽  
Carbon Nanotube Composite ◽  
Acidic And Alkaline Media

MoP/N,P dual-doped carbon nanotube composite exhibited excellent activity and long-term stability toward HER both in acidic and alkaline media, superior to most of catalysts reported previously.

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