A selectively exposed crystal facet-engineered TiO2 thin film photoanode for the higher performance of the photoelectrochemical water splitting reaction

2015 ◽  
Vol 8 (12) ◽  
pp. 3646-3653 ◽  
Author(s):  
Chang Woo Kim ◽  
So Jin Yeob ◽  
Hui-Ming Cheng ◽  
Young Soo Kang
Keyword(s):  
Thin Film ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Hydrogen Evolution Reaction ◽  
Tio2 Thin Film ◽  
Photoelectrochemical Water Splitting ◽  
Crystal Facet

A selectively exposed (101)-crystal facet engineered TiO2 photoanode is investigated for the higher efficiency of the hydrogen evolution reaction.

Nanostructured MoS3/WSe2 thin-film photocathode for efficient water splitting under light illumination

2020 ◽  
pp. 5-18
Author(s):  
V. N. Nevolin ◽  
◽  
R. I. Romanov ◽  
D. V. Fominski ◽  
O. V. Rubinkovskaya ◽  
...  
Keyword(s):  
Thin Film ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Hydrogen Evolution Reaction ◽  
Density Functional ◽  
Substrate Surface ◽  
Molybdenum Sulfide ◽  
Carbon Substrate ◽  
High Catalytic Activity ◽  
Light Illumination

The influence of the chemical state of the WOу thin-film precursor on the formation of WSe2 nanofilms under rapid selenization on a glassy-carbon substrate at 900°C was studied. Amorphous molybdenum sulfide (MoSx~3), which has high catalytic activity in the electrochemical hydrogen evolution reaction, was prepared on the surface of the WSe2 films by pulsed laser deposition. It was shown that the composition of the WOу precursors had a significant effect on the morphology of WSe2 nanolayers, and this characteristic largely determined the efficiency of hydrogen evolution by the MoS3/WSe2 heterostructure upon photo-activated water splitting. The most efficient hydrogen evolution was found for the MoS3/WSe2 photocathode that contained WSe2 in the form of petal crystals of ~ 50 nm thickness and these petals were oriented perpendicular to the substrate surface. A theoretical analysis of the possible effect of synergetic interaction at the MoS3/WSe2 interface on the efficiency of hydrogen formation was carried out. Calculations using the density functional theory showed that MoS3 clusters can increase the efficiency of the hydrogen evolution reaction in contact with surface areas of WSe2 nanocrystals possessing different atomic packing.

Hierarchically porous FeNi3@FeNi layered double hydroxide nanostructures: One-step fast electrodeposition and highly efficient electrocatalytic performances for overall water splitting

2021 ◽  
Author(s):  
Zihao Liu ◽  
Shifeng Li ◽  
Fangfang Wang ◽  
Mingxia Li ◽  
Yonghong Ni
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Layered Double Hydroxide ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Electrocatalytic Activity ◽  
Hierarchically Porous ◽  
One Step ◽  
Double Hydroxide

FeNi-layered double hydroxide (LDH) is thought to be an excellent electrocatalyst for oxygen evolution reaction (OER), but it always shows extremely poor electrocatalytic activity toward hydrogen evolution reaction (HER) in...

Photocatalytic water splitting using Pt-loaded visible light-responsive TiO2 thin film photocatalysts

2007 ◽  
Vol 120 (2) ◽  
pp. 133-138 ◽  
Author(s):  
Masaaki Kitano ◽  
Masato Takeuchi ◽  
Masaya Matsuoka ◽  
John M. Thomas ◽  
Masakazu Anpo
Keyword(s):  
Thin Film ◽  
Visible Light ◽  
Water Splitting ◽  
Tio2 Thin Film ◽  
Photocatalytic Water Splitting
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