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Touch of Gold Improves Nanoparticle Fuel-Cell Reactions

By Guest PostMarch 13, 2012Scienceadvanced electron microscopy, brown university, carbon monoxide, catalyst, co, crystal structure, crystallization, feptau, formic acid, fuel cell reaction, gold, gold atom, helmets, huiyuan zhu, japanese firefighters, mass activity, metallic nanoparticle, nanoparticle catalyst, np, organic material, oxidation, palladium, sen zhang, shaojun guo, shouheng sun, tetragonal, trimetallic nanoparticle

Chemists at Brown University have created a triple-headed metallic nanoparticle that reportedly performs better and lasts longer than any other nanoparticle catalyst studied in fuel-cell reactions. The key is the addition of gold: It yields a more uniform crystal structure while removing carbon monoxide from the reaction. Results published in the Journal of the American Chemical Society.

PROVIDENCE, R.I. [Brown University] — Advances in fuel-cell technology have been stymied by the inadequacy of metals studied as catalysts. The drawback to platinum, other than cost, is that it absorbs carbon monoxide in reactions involving fuel cells powered by organic materials like formic acid. A more recently tested metal, palladium, breaks down over time. (more…)

Planck All-Sky Images Show Cold Gas and Strange Haze

By Guest PostFebruary 14, 2012Sciencebig bang, carbon monoxide, clouds of hydrogen, cold clouds, cold gas, cosmic microwave background, dark matter, dark matter particles, davide pietrobon, electrons, european space agency, form of light energy, galactic haze, galactic winds, Galaxy, greg dobler, haze, images, jan tauber, krzysztof m gorski, magnetic fields, microwave emissions, milky way galaxy, NASA, planck, planck data, poland, relic radiation, santa barbara, star formation, supernovae, the whole sky, universe, university of california, warsaw university observatory, wavelengths, wmap

New images from the Planck mission show previously undiscovered islands of star formation and a mysterious haze of microwave emissions in our Milky Way galaxy. The views give scientists new treasures to mine and take them closer to understanding the secrets of our galaxy.

Planck is a European Space Agency mission with significant NASA participation. (more…)

Resolved to Quit Smoking? Brain Scans Predict Likely Success

By Guest PostJanuary 31, 2011Health, Sciencebrain activity, brain scans, carbon monoxide, cigarette, co, danielle whalen, elliot berkman, emily falk, fmri, functional magnetic resonance imaging, heavy smokers, matthew lieberman, medial prefrontal cortex, neural reactions, particular brain region, predict, predict behavior change, quit smoking, resolution, smokers, television ads

ANN ARBOR, Mich.— Brain scans showing neural reactions to pro-health messages can predict if you’ll keep that resolution to quit smoking more accurately than you yourself can. That’s according to a new study forthcoming in Health Psychology, a peer-reviewed journal.

“We targeted smokers who were already taking action to quit,” said Emily Falk, the lead author of the study and director of the Communication Neuroscience Laboratory at the U-M Institute for Social Research and Department of Communication Studies. “And we found that neural activity can predict behavior change, above and beyond people’s own assessment of how likely they are to succeed. (more…)

Tag Archives: carbon monoxide

Touch of Gold Improves Nanoparticle Fuel-Cell Reactions

Planck All-Sky Images Show Cold Gas and Strange Haze

Resolved to Quit Smoking? Brain Scans Predict Likely Success