Nanotechnology helps build a greener car

The catalytic converter is the unseen, unsung hero of auto emissions control. Does the old "soot can" have a high-tech story? Check out what CNET's Brian Cooley and Michael Kanellos learned from visiting Nanostellar, a company that replaces particles in a catalytic converter so a car can run greener.
  Category: Green applications
  Source: c/net