Effect of the Support Nanostructure (Nanofibers and Nanotubes) on the Photoelectrochemical Performance of TiO2-CdO@CdS Semiconducting Architectures

2017 ◽  
Vol 164 (6) ◽  
pp. H286-H292 ◽  
Author(s):  
J. E. Carrera-Crespo ◽  
J. Ghilane ◽  
H. Randriamahazaka ◽  
S. Ammar ◽  
Ignacio González
Keyword(s):  
Photoelectrochemical Performance ◽  
Effect Of The Support

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>

Solvent-Mediated Engineering of Copper-Metalated Acetylenic Polymer Scaffolds with Enhanced Photoelectrochemical Performance

2021 ◽  
Author(s):  
Tao Zhang ◽  
Zhongquan Liao ◽  
Ehrenfried Zschech ◽  
Guoliang Chai ◽  
Yang Hou ◽  
...  
Keyword(s):  
Polymer Scaffolds ◽  
Photoelectrochemical Performance ◽  
Carbon Based

The covalent linking of acetylenes presents an important route for the fabrication of novel carbon-based scaffolds with potential utilities in a large variety of applications. Beyond that, the incorporation of...

scholarly journals Design an Epoxy Coating with TiO2/GO/PANI Nanocomposites for Enhancing Corrosion Resistance of Q235 Carbon Steel

Materials ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2629
Author(s):  
Shimin Chen ◽  
Bo Li ◽  
Rengui Xiao ◽  
Huanhu Luo ◽  
Siwu Yu ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Photocurrent Density ◽  
Photoelectrochemical Performance ◽  
Q235 Steel ◽  
Protective Barrier ◽  
Barrier Coating ◽  
Pani Composite ◽  
Steel Protection ◽  
Q235 Carbon Steel

In this work, a ternary TiO2/Graphene oxide/Polyaniline (TiO2/GO/PANI) nanocomposite was synthesized by in situ oxidation and use as a filler on epoxy resin (TiO2/GO/PANI/EP), a bifunctional in situ protective coating has been developed and reinforced the Q235 carbon steel protection against corrosion. The structure and optical properties of the obtained composites are characterized by XRD, FTIR, and UV–vis. Compared to bare TiO2 and bare Q235, the TiO2/GO/PANI/EP coating exhibited prominent photoelectrochemical properties, such as the photocurrent density increased 0.06 A/cm2 and the corrosion potential shifted from −651 mV to −851 mV, respectively. The results show that the TiO2/GO/PANI nanocomposite has an extended light absorption range and the effective separation of electron-hole pairs improves the photoelectrochemical performance, and also provides cathodic protection to Q235 steel under dark conditions. The TiO2/GO/PANI/EP coating can isolate the Q235 steel from the external corrosive environment, and may generally be regarded a useful protective barrier coating to metallic materials. When the TiO2/GO/PANI composite is dispersed in the EP, the compactness of the coating is improved and the protective barrier effect is enhanced.

scholarly journals Photoelectrochemical performance of facet-controlled TiO2 nanosheets grown hydrothermally on FTO

2021 ◽  
Author(s):  
Fahimeh Shahvardanfard ◽  
Gihoon Cha ◽  
Nikita Denisov ◽  
Benedict Osuagwu ◽  
Patrik Schmuki
Keyword(s):  
Single Crystal ◽  
Tin Oxide ◽  
Photoelectrochemical Performance ◽  
Tio2 Nanosheets

Single crystal anatase TiO2 nanosheets (TiO2-NSs) are grown hydrothermally on fluorine-doped tin oxide (FTO).

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