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Comparing the performance of palladium clusters of different sizes for water oxidation; (inset) calculated structure of the Pd6O6 cluster (red = oxygen, grey = palladium), a catalytic site for the reaction.June 2014Science Highlights

Palladium Cluster Size Matters

Groups of Palladium atoms found to have major effects on electrocatalyst performance. Read More »

Local regions of gel shrink when exposed to light through a photomask apeture.June 2014Science Highlights

Morphing Polymer Shape and Motion with Light

Computational modelling shows how the shape and motion in a polymer gel can be controlled solely by light. Read More »

Control of the synthesis results in a diversity of self-assembled structures formed by sticky colloidal particles:  array of “mushrooms” (left), wavy colloidal “fur”, dense fiber network, and three-dimensional reconstruction of the network (right).June 2014Science Highlights

Growing Nano “Hair” for Electrodes - From the Bottom Up

Electric fields control growth of “sticky” polymer particles. Read More »

Left: Fluorescent image of two polystyrene particles positioned at the north and south poles of a liquid crystal droplet. Right: Simulation of particle adsorption; region of disorder within droplets coincides exactly with the particle positions at the poles.June 2014Science Highlights

Cell-like Decoration of “Gooey” Surface

Precise, predictable positioning of nanoparticles on a liquid crystal droplet. Read More »

The color spectrum of light absorbed by a strongly-coupled perylene-tetrapyrrole dyad is more than the sum of the spectra of the constituents.June 2014Science Highlights

Capturing All the Light: Panchromatic Visible Absorption for Solar Photoconversion

Linking together two light absorbing pigments to construct a better artificial photosynthesis solar cell. Read More »

EPR spectra (A) with generated with isotope labeled tyrosines show that a tyrosine radical (B) is cleaved to form an oxobenzyl radical (C) as an intermediate in forming the CO and CN Fe ligands in FeFe hydrogenase.June 2014Science Highlights

Totally Radical: Unique Chemistry Needed to Make a Biological Hydrogen Catalyst

Key steps revealed in assembling the active site of a hydrogen-generating catalyst in bacteria. Read More »

Focal series high-resolution transmission-electron microscope (TEM) image (here, for disordered 1.2-1.5 nm NPs) and histogram for fraction of ordered NPs versus size, where NPs > 2.5 nm were all observed to be ordered.June 2014Science Highlights

Nanoparticles: To Be or Not to Be Crystalline?

Discovery of coexisting ordered and disordered catalytic nanoparticles. Read More »

Scanning Tunneling Microscope Image Showing Atomically Dispersed Palladium Atoms in a Copper Surface.June 2014Science Highlights

Isolated Palladium Atoms Allow Highly-Selective Catalysis of Hydrogenation Reactions

Single palladium atoms convert the surface of an inexpensive metal into an ultra-selective hydrogenation catalyst. Read More »

Sequentially deposited green, orange, and red-emitting quantum dots serve as sensitizers within the titanium oxide film to render a rainbow architecture for harvesting photons from sunlight.June 2014Science Highlights

Tuning Into the Right Wavelength: Quantum Dot Rainbow Increases Solar Cell Efficiency

Layers of quantum dots Form “rainbow architecture” that enhances light absorption in a solar cell. Read More »

Production of hydrogen through the water-gas shift reaction on Pt-CeOx interfaces supported on titania.June 2014Science Highlights

Stacking Metals for Better Catalysis: A New Type of Metal-Support Interaction

Designing a novel catalyst for the production of hydrogen. Read More »

Last modified: 3/18/2013 11:05:00 AM