Template-assisted preparation of films of transparent conductive indium tin oxide

Fattakhova‐Rohlfing, Dina; Brezesinski, Torsten; Smarsly, Bernd M.; Rathouský, Jiřı́

doi:10.1016/j.spmi.2008.03.001

Cited by 6 publications

(4 citation statements)

References 10 publications

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“…More importantly, high surface area semiconducting metal oxides generally do not have sufficient electrical conductivity. This problem can be made worse by the porosity and disordering of the crystalline structure. , There have been several reports on loading metal oxides on carbon supports or coating carbon nanotubes with metal oxides to improve the activity and durability of the catalysts . The combination of metal oxides and carbon materials potentially allows the optimization of both the dispersion and the electrical conductivity.…”

Section: Introductionmentioning

confidence: 99%

Stabilization of Electrocatalytic Metal Nanoparticles at Metal−Metal Oxide−Graphene Triple Junction Points

et al. 2011

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Carbon-supported precious metal catalysts are widely used in heterogeneous catalysis and electrocatalysis, and enhancement of catalyst dispersion and stability by controlling the interfacial structure is highly desired. Here we report a new method to deposit metal oxides and metal nanoparticles on graphene and form stable metal-metal oxide-graphene triple junctions for electrocatalysis applications. We first synthesize indium tin oxide (ITO) nanocrystals directly on functionalized graphene sheets, forming an ITO-graphene hybrid. Platinum nanoparticles are then deposited, forming a unique triple-junction structure (Pt-ITO-graphene). Our experimental work and periodic density functional theory (DFT) calculations show that the supported Pt nanoparticles are more stable at the Pt-ITO-graphene triple junctions. Furthermore, DFT calculations suggest that the defects and functional groups on graphene also play an important role in stabilizing the catalysts. These new catalyst materials were tested for oxygen reduction for potential applications in polymer electrolyte membrane fuel cells, and they exhibited greatly enhanced stability and activity.

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Section: Introductionmentioning

confidence: 99%

Stabilization of Electrocatalytic Metal Nanoparticles at Metal−Metal Oxide−Graphene Triple Junction Points

et al. 2011

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“…7,8 Transparent conducting oxides (TCO) such as tin-doped indium oxide (ITO) are substrates of choice for the construction of optoelectronic devices. 9 Various methods based on both physical 10,11 or chemical deposition [12][13][14][15] have been explored to synthesize ITO as thin or/and thick lms. Such lms exhibit different microstructures and they are either dense or porous, depending on the process used and the targeted application.…”

Section: Introductionmentioning

confidence: 99%

Dye-sensitized nanostructured crystalline mesoporous tin-doped indium oxide films with tunable thickness for photoelectrochemical applications

et al. 2013

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A simple route towards nanostructured mesoporous Indium-Tin Oxide () electrodes exhibiting both high conductivities and optimized bicontinuous pore-solid network is reported. The ITO films are first produced as an X-ray-amorphous, high surface area material, by adapting recently established template-directed sol-gel methods using Sn(IV) and In(III) salts. Carefully controlled temperature/atmosphere treatments convert the as-synthesized ITO films into nano-crystalline coatings with the cubic bixbyite structure. Specially, a multi-layered synthesis was successfully undertaken for tuning the film thickness. In order to evaluate the performances of as an electrode substrate for photoelectrochemical applications, photoelectrodes were prepared by covalent grafting of a redox-active dye, the complex [Ru(bpy)(4,4'-(CHPOH)-bpy)]Cl (bpy=bipyridine). Surface coverage was shown to increase with the film thickness, from 0.7 × 10 mol.cm (one layer, 45 nm) to 3.5 × 10 mol.cm (ten layers, 470 nm), the latter value being ~ 100 times larger than that for commercially available planar ITO. In the presence of an electron mediator, photocurrents up to 50 μA.cm have been measured under visible light irradiation, demonstrating the potential of this new preparation for the construction of efficient photoelectrochemical devices.

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“…Figure depicts scanning electron micrographs of the obtained layers, in a direction perpendicular or parallel to the substrate, and a high‐resolution view of lattice planes (obtained in transmission electron microscopy). Thanks to the higher surface area created by the template, a much higher loading of the dye – Eosin Y has been achieved on the porous electrode in comparison to the flat one, which was confirmed by both electrochemistry and UV‐Vis spectrometry . Two subsequent studies have focused on optimizing the deposition procedure.…”

Section: Preparation Of Porous Transparent Conductive Oxidesmentioning

confidence: 99%

Porous and Transparent Metal‐oxide Electrodes : Preparation Methods and Electroanalytical Application Prospects

et al. 2018

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A review on the preparation methods for porous and transparent metal‐oxide electrodes is provided alongside a discussion of existing and possible electrochemical and electroanalytical applications. The elaboration routes include non‐templated particle deposition, template approaches, physical deposition methods, etching and electrospinning. Applications of such materials are mainly found in energy conversion and storage (photovoltaics, water splitting) and electroanalysis.

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Template-assisted preparation of films of transparent conductive indium tin oxide

Cited by 6 publications

References 10 publications

Stabilization of Electrocatalytic Metal Nanoparticles at Metal−Metal Oxide−Graphene Triple Junction Points

Stabilization of Electrocatalytic Metal Nanoparticles at Metal−Metal Oxide−Graphene Triple Junction Points

Dye-sensitized nanostructured crystalline mesoporous tin-doped indium oxide films with tunable thickness for photoelectrochemical applications

Porous and Transparent Metal‐oxide Electrodes : Preparation Methods and Electroanalytical Application Prospects

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