Platinum Nanoparticles (IMAGE)
Caption
From a collection of nanoscale platinum particles, left, researchers homed in on the chemistry occurring in different surface areas of individual nanoscale platinum particles like the one at right, which measures about 100 billionths of an inch across. Researchers found that chemical reactivity is concentrated toward the edges of the particles (red circle at right), with lesser activity in the central area (black circle). This image was produced by an atomic force microscope.
Credit
"High-spatial-resolution mapping of catalytic reactions on single particles," <i>Nature</i>, Jan. 11, 2017
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