Carbonized TiO2 nanotubes with semimetallic properties increase the efficiency of methanol fuel cells

(PhysOrg.com) -- Mention of nanotubes usually means carbon nanotubes. But not all tiny tubes are made of carbon. For example, layers made of nanoscopic titanium dioxide have proven to be useful materials for biotechnology, catalytic converters, and solar cell technology. Although the semiconducting properties of these nanotubes are critical for many of these applications, their limited conductivity represents a hindrance for other areas of application.

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