scholarly journals Design aspects of all atomic layer deposited TiO2–Fe2O3 scaffold-absorber photoanodes for water splitting

2018 ◽  
Vol 2 (9) ◽  
pp. 2124-2130 ◽  
Author(s):  
Arto Hiltunen ◽  
Tero-Petri Ruoko ◽  
Tomi Iivonen ◽  
Kimmo Lahtonen ◽  
Harri Ali-Löytty ◽  
...  
Keyword(s):  
Water Splitting ◽  
Atomic Layer ◽  
Oxide Formation ◽  
Feti Oxide

Role of FeTi-oxide formation vs. crystallization to hematite in the TiO2–Fe2O3 scaffold-absorber photoanodes is investigated.

One-Dimensional TiO2@GaON Core-Shell Nanowires with Controlled Shell Thickness from Atomic Layer Deposition for Stable and Efficient Photoelectrochemical Water Splitting

2019 ◽  
Author(s):  
Jiajia Tao ◽  
Hong-Ping Ma ◽  
Kaiping Yuan ◽  
Yang Gu ◽  
Jianwei Lian ◽  
...  
Keyword(s):  
Atomic Layer Deposition ◽  
Band Gap ◽  
Water Splitting ◽  
Atomic Layer ◽  
Photoelectrochemical Water Splitting ◽  
Core Shell ◽  
Photoelectrochemical Performance ◽  
Highly Efficient ◽  
Layer Deposition ◽  
Shell Nanowires

<div>As a promising oxygen evolution reaction semiconductor, TiO2 has been extensively investigated for solar photoelectrochemical water splitting. Here, a highly efficient and stable strategy for rationally preparing GaON cocatalysts on TiO2 by atomic layer deposition is demonstrated, which we show significantly enhances the</div><div>photoelectrochemical performance compared to TiO2-based photoanodes. For TiO2@20 nm-GaON core-shell nanowires a photocurrent density up to 1.10 mA cm-2 (1.23 V vs RHE) under AM 1.5 G irradiation (100 mW cm-2) has been achieved, which is 14 times higher than that of TiO2 NWs. Furthermore, the oxygen vacancy formation on GaON as well as the band gap matching with TiO2 not only provides more active sites for water oxidation but also enhances light absorption to promote interfacial charge separation and migration. Density functional theory studies of model systems of GaON-modified TiO2 confirm the band gap reduction, high reducibility and ability to activate water. The highly efficient and stable systems of TiO2@GaON core-shell nanowires provide a deeper understanding and universal strategy for enhancing photoelectrochemical performance of photoanodes now available. </div>

scholarly journals A structurally versatile nickel phosphite acting as a robust bifunctional electrocatalyst for overall water splitting

2018 ◽  
Vol 11 (5) ◽  
pp. 1287-1298 ◽  
Author(s):  
Prashanth W. Menezes ◽  
Chakadola Panda ◽  
Stefan Loos ◽  
Florian Bunschei-Bruns ◽  
Carsten Walter ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Bifunctional Electrocatalyst ◽  
Overall Water Splitting

The mechanistically distinct and synergistic role of phosphite anions in hydrogen evolution and nickel cations in oxygen evolution have been uncovered for active and durable overall water splitting catalysis in nickel phosphite.

Enhanced photoelectrochemical water splitting on heterostructured α-Fe2O3-TiO2:X (X = Co, Cu, Bi) photoanodes: role of metal doping on charge carrier dynamics improvement

2020 ◽  
pp. 113077
Author(s):  
Ali M. Huerta-Flores ◽  
Gabriel Chávez-Angulo ◽  
Omar A. Carrasco-Jaim ◽  
Leticia M. Torres-Martínez ◽  
M.A. Garza-Navarro
Keyword(s):  
Charge Carrier ◽  
Water Splitting ◽  
Carrier Dynamics ◽  
Photoelectrochemical Water Splitting ◽  
Metal Doping ◽  
Charge Carrier Dynamics

scholarly journals Vanadium doped CaTiO3 cuboids: Role of vanadium in improving the photocatalytic activity

2021 ◽  
Author(s):  
Harsha Bantawal ◽  
Sandhya U. Shenoy ◽  
Denthaje Krishna Bhat
Keyword(s):  
Photocatalytic Activity ◽  
Water Splitting ◽  
Dye Degradation ◽  
Low Cost ◽  
Physicochemical Stability ◽  
Photocatalytic Dye Degradation

CaTiO3 has attracted enormous interest in the field of photocatalytic dye degradation and water splitting owing to its low cost, excellent physicochemical stability and structural tunability. Herein, we have developed...

scholarly journals The role of nitrogen in transition-metal nitrides in electrochemical water splitting

2021 ◽  
Author(s):  
Rabia Jamil ◽  
Rashad Ali ◽  
Suraj Loomba ◽  
Jian Xian ◽  
Muhammad Yousaf ◽  
...  
Keyword(s):  
Transition Metal ◽  
Water Splitting ◽  
Metal Nitrides ◽  
Transition Metal Nitrides ◽  
Electrochemical Water Splitting

The significant role of the chemically bonded interfaces in BiVO4/ZnO heterostructures for photoelectrochemical water splitting

2021 ◽  
Vol 285 ◽  
pp. 119833
Author(s):  
Jinglin Li ◽  
Hao Yuan ◽  
Jiaxin Li ◽  
Wenjie Zhang ◽  
Yanqi Liu ◽  
...  
Keyword(s):  
Water Splitting ◽  
Significant Role ◽  
Photoelectrochemical Water Splitting

Role of the Polar Electric Field in Bismuth Oxyhalides for Photocatalytic Water Splitting

2021 ◽  
Author(s):  
Xu-Dong Dong ◽  
Yi-Man Zhang ◽  
Zong-Yan Zhao
Keyword(s):  
Electric Field ◽  
Water Splitting ◽  
Photocatalytic Water Splitting ◽  
Bismuth Oxyhalides

Crucial role of heterostructures in highly advanced water splitting photoelectrodes

2021 ◽  
Vol 29 ◽  
pp. 100454
Author(s):  
Jin Wook Yang ◽  
Sang Hyun Ahn ◽  
Ho Won Jang
Keyword(s):  
Water Splitting ◽  
Crucial Role

A first-principles study of the atomic layer deposition of ZnO on carboxyl functionalized carbon nanotubes: the role of water molecules

2021 ◽  
Vol 23 (5) ◽  
pp. 3467-3478
Author(s):  
J. I. Paez-Ornelas ◽  
H. N. Fernández-Escamilla ◽  
H. A. Borbón-Nuñez ◽  
H. Tiznado ◽  
Noboru Takeuchi ◽  
...  
Keyword(s):  
First Principles ◽  
Ligand Exchange ◽  
Functional Group ◽  
Atomic Layer ◽  
High Reactivity ◽  
Water Molecules ◽  
Exchange Reactions ◽  
Layer Deposition ◽  
The Right

Atomic description of ALD in systems that combine large surface area and high reactivity is key for selecting the right functional group to enhance the ligand-exchange reactions.

Composite Nanostructures of TiO2and ZnO for Water Splitting Application: Atomic Layer Deposition Growth and Density Functional Theory Investigation

2016 ◽  
Vol 26 (27) ◽  
pp. 4882-4889 ◽  
Author(s):  
Marina Kulmas ◽  
Leanne Paterson ◽  
Katja Höflich ◽  
Muhammad Y. Bashouti ◽  
Yanlin Wu ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Atomic Layer Deposition ◽  
Water Splitting ◽  
Density Functional ◽  
Atomic Layer ◽  
Functional Theory ◽  
Composite Nanostructures ◽  
Layer Deposition
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