Oriented catalytic platinum nanoparticles on high surface area strontium titanate nanocuboids.

Nucleation and growth process of atomic layer deposition platinum nanoparticles on strontium titanate nanocuboids.

Uniform, well-dispersed platinum nanoparticles were grown on SrTiO3 nanocuboids via atomic layer deposition (ALD) using (methylcyclopentadienyl)trimethylplatinum (MeCpPt(Me)3) and water. For the first half-cycle of the deposition particles formed through two sequential processes: initial nucleation and growth. The final particle size after a single complete ALD cycle was dependent on the reacti...

Controllable ALD synthesis of platinum nanoparticles by tuning different synthesis parameters

Pt nanoparticles were successfully deposited using three different atomic layer deposition (ALD) methods, e.g. AB­type, ABC­type and static ABC­type ALD, on two different types of strontium titanate nanocuboids (STO­NCs) samples in a reaction temperature window of 125 °C–300 °C. The influence of reaction temperature, number of ALD cycles, type of substrate, 2nd reagent and type of ALD method on...

NORTHWESTERN UNIVERSITY Atomically-Precise Synthesis of Platinum catalysts on Strontium Titanate using Atomic Layer Deposition A DISSERTATION SUBMITTED TO THE GRADUATE SCHOOL IN PARTIAL FULFILLMENT OF THE REQUIREMENTS For the degree DOCTOR OF PHILOSOPHY Field of Materials Science and Engineering By

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Growth of arrays of oriented epitaxial platinum nanoparticles with controlled size and shape by natural colloidal lithography

We developed a method for production of arrays of platinum nanocrystals of controlled size and shape using templates from ordered silica bead monolayers. Silica beads with nominal sizes of 150 and 450 nm were self-assembled into monolayers over strontium titanate single crystal substrates. The monolayers were used as shadow masks for platinum metal deposition on the substrate using the three-st...

Wulff shape of strontium titanate nanocuboids