Carbon power: Twenty layers of carbon nanotubes are assembled on a polymer backing.
Credit: Seung Woo Lee/ Journal of the American Chemical Society
New publications, experiments and breakthroughs in materials science--and what they mean.
Nanotube Super-capacitors
A method for making electrodes doubles electrical storage capacity
Source: "Layer-by-Layer Assembly of All Carbon Nanotube Ultrathin Films for Electrochemical Applications"
Paula Hammond et al.
Journal of the American Chemical Society 131: 671-679
Results: MIT researchers have developed a new technique for making thin films of multiwalled carbon nanotubes. The materials have low electrical resistance and can store about 160 farads of electrical charge per gram--a capacitance more than twice that of other carbon nanotube films and an order of magnitude higher than that of conventional carbon materials.
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