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 triplejunctionsforelectrocatalysisapplications.We firstsynthesizeindiumtin oxide (ITO)nanocrystals directlyon functionalizedgraphene sheets, forming an ITO-graphene hybrid. Platinum nanoparticles are then deposited, form- ing a unique triple-junction structure (Pt-ITO-graphene). Our experimental work and periodic density functional theory (DFT) calculationsshowthatthesupportedPtnanoparticlesaremorestableatthePt-ITO-graphenetriplejunctions.Furthermore,DFT calculations suggest thatthe defects andfunctional groupsongraphene alsoplayan importantroleinstabilizingthe 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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Stabilization of Electrocatalytic Metal Nanoparticles at Metal−Metal Oxide−Graphene Triple Junction Points

Thin film growth by a non-vacuum deposition technique, namely, the chemical solution deposition (CSD) method, is reviewed with emphasis on the growth of various oxide films and their properties. Various aspects of the solution chemistries for the different routes are discussed, and the effects of solution precursor properties on the conversion of the as-deposited film to the desired phase are also discussed. Crystal structures and functional properties common to many oxide materials are briefly reviewed.

https://iopscience.iop.org/article/10.1088/0953-2048/19/2/R01/pdf

Solution-derived textured oxide thin films—a review

Transparent heat regulating (THR) materials and coatings for energy saving window applications: Impact of materials design, micro-structural, and interface quality on the THR performance

S. Korder

Papers

Effects of tin on IR reflectivity, thermal emissivity, Hall mobility and plasma wavelength of sol-gel indium tin oxide films on glass

Study of sol-gel-derived high tin content indium tin oxide (ITO) films on silica-coated soda lime silica glass