Press Release 08-200
When A Good Nanoparticle Goes Bad
Understanding how nanoparticles change form may help solve energy needs
November 10, 2008
Researchers at Cornell University recently made a major breakthrough when they invented a method to test and demonstrate a long-held hypothesis that some very, very small metal particles work much better than others in various chemical processes such as converting chemical energy to electricity in fuel cells or reducing automobile pollution.
The breakthrough, reported in this week's edition of the journal Nature Materials, also came with a surprise. By devising a way to watch individual molecules react with a single nanoscale particle of gold in real time, researchers confirmed that some gold particles are better at increasing the rate of a chemical reaction than others, but they also found that a good catalyst sometimes spontaneously turns bad.
Understanding why these particles change and how to stabilize the "good" particles may lead to solutions for a wide range of problems such as the current global energy challenge.
Bobbie Mixon, NSF (703) 292-8070 firstname.lastname@example.org
Rama Bansil, NSF (703) 292-8562 email@example.com
Z. Charles Ying, NSF (703) 292-8428 firstname.lastname@example.org
Thomas P. Rieker, NSF (703) 292-4914 email@example.com
Peng Chen, Cornell University (607) 254-8533 firstname.lastname@example.org
The National Science Foundation (NSF) is an independent federal agency that supports fundamental research and education across all fields of science and engineering. In fiscal year (FY) 2012, its budget was $7.0 billion. NSF funds reach all 50 states through grants to nearly 2,000 colleges, universities and other institutions. Each year, NSF receives about 50,000 competitive requests for funding, and makes about 11,500 new funding awards. NSF also awards about $593 million in professional and service contracts yearly.
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