scholarly journals Laser-Induced Chemical Liquid-Phase Deposition Plasmonic Gold Nanoparticles on Porous TiO2 Film with Great Photoelectrochemical Performance

2021 ◽  
Vol 12 (1) ◽  
pp. 30
Author(s):  
Anton S. Voronin ◽  
Ivan V. Nemtsev ◽  
Maxim S. Molokeev ◽  
Mikhail M. Simunin ◽  
Ekaterina A. Kozlova ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Liquid Phase ◽  
Tio2 Film ◽  
Structural Characteristics ◽  
Anatase Phase ◽  
Photocurrent Density ◽  
Liquid Phase Deposition ◽  
Large Area ◽  
Photoelectrochemical Performance ◽  
Porous Tio2

This paper considers the photoelectrochemical characteristics of a composite porous TiO2 thin film with deposited plasmonic gold nanoparticles. The deposition of gold nanoparticles was carried out by the laser-induced chemical liquid-phase deposition (LCLD) method. The structural characteristics of the composite have been studied; it has been shown that the porous TiO2 film has a lattice related to the tetragonal system and is in the anatase phase. Gold nanoparticles form on the surface of a porous TiO2 film. A complex of photoelectrochemical measurements was carried out. It was shown that the deposition of plasmonic gold nanoparticles led to a significant increase in the photocurrent density by ~820%. The proposed concept is aimed at testing the method of forming a uniform layer of plasmonic gold nanoparticles on a porous TiO2 film, studying their photocatalytic properties for further scaling, and obtaining large area Au/TiO2/FTO photoelectrodes, including in the roll-to-roll process.

Porous TiO2 Film Immobilized with Gold Nanoparticles for Dual-Polarity SALDI MS Detection and Imaging

2020 ◽  
Vol 12 (38) ◽  
pp. 42567-42575
Author(s):  
Xian-Na Wang ◽  
Weiwei Tang ◽  
Andrew Gordon ◽  
Hui-Ying Wang ◽  
Linru Xu ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Tio2 Film ◽  
Porous Tio2 ◽  
Ms Detection ◽  
Dual Polarity ◽  
Saldi Ms

Device Quality SiO2 Films by Liquid Phase Deposition (LPD) AT 48°C

2002 ◽  
Vol 716 ◽  
Author(s):  
M. Manhas ◽  
T. J. Pease ◽  
R. Cross ◽  
S. C. Bose ◽  
D. P. Oxley ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Silicic Acid ◽  
Device Fabrication ◽  
Saturated Solution ◽  
Breakdown Field ◽  
Supersaturated Solution ◽  
Liquid Phase Deposition ◽  
Large Area ◽  
Silica Powder ◽  
Field Strengths

AbstractWe describe the preparation, properties and the comparison of SiO2 films deposited by liquid phase deposition from supersaturated solutions with both silica powder and silicic acid. From each solution the resulting [Si (OH)4]-rich supersaturated solution, when suitably diluted with De-Ionised (DI) water deposits SiO2 onto silicon. Our work was motivated by the search for the optimum condition for device quality oxide growth within a low (<300°C) thermal budget, for large area device fabrication, on inexpensive substrates such as glass and plastic. The net growth of the LPD of the oxide layer is result of competition between deposition and etching; the balance and hence the rate of growth being controlled simply and reproducibly by the addition of de-ionised (DI) water. We have produced device grade SiO2 from the solution at 48°C onto both n and p type Si substrates. Control of the oxide properties is achieved in the amount of DI water added to the super-saturated solution. Oxide layers of optimum quality being obtained by the titration of 60ml DI water to 100ml of supersaturated solution. FTIR, ellipsometery, and C-V/I-V measurements were used to characterise the films deposited from solutions of silica powder and silicic acid. The resistivity of the optimum layers from a saturated solution of silica powder was found to be of the order of ≈1011 Ωcm with breakdown field strengths of the order of 3-5 x 106 V/cm. The resistivity of the optimum layers prepared using silicic acid were much higher (1015 Ω-cm), with breakdown field strengths of the order of (9±1) x 106 V/cm. The results approach those for thermally grown silicon dioxide, suggesting that LPD oxide have the potential of device quality insulator on large area substrate.

scholarly journals Corrosion resistant TiO2 film formed on magnesium by liquid phase deposition treatment

2011 ◽  
Vol 56 (20) ◽  
pp. 7180-7188 ◽  
Author(s):  
R. Fujita ◽  
M. Sakairi ◽  
T. Kikuchi ◽  
S. Nagata
Keyword(s):  
Liquid Phase ◽  
Tio2 Film ◽  
Liquid Phase Deposition ◽  
Corrosion Resistant

scholarly journals Synthesis of a mesoporous titania thin film with a pseudo-single-crystal framework by liquid-phase epitaxial growth, and enhancement of photocatalytic activity

RSC Advances ◽  
2020 ◽  
Vol 10 (67) ◽  
pp. 40658-40662
Author(s):  
Norihiro Suzuki ◽  
Chiaki Terashima ◽  
Kazuya Nakata ◽  
Ken-ichi Katsumata ◽  
Akira Fujishima
Keyword(s):  
Thin Film ◽  
Photocatalytic Activity ◽  
Liquid Phase ◽  
Single Crystal ◽  
Chemical Process ◽  
Anatase Phase ◽  
Mesoporous Titania ◽  
Titania Thin Film ◽  
Liquid Phase Epitaxial Growth ◽  
Pseudo Single Crystal

An anatase-phase mesoporous titania thin film with a pseudo-single-crystal framework was facilely synthesized by an inexpensive chemical process.

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.

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