Can nanotechnology reduce electrode losses in electrochemical cells?
Nanotechnology offers enormous opportunities for improving a huge range of electrochemical processes.

The use of platinum as a catalyst is been widespread throughout the electrochemical industry, helping reduce the activation energy of reactions such as in hydrogen and methanol fuel cells. However, platinum is a rare and expensive metallic element. Given that the reactions only take place on the surface of the catalyst, the use of nanoparticles of platinum reduces the amount of platinum needed to achieve the same surface area, thereby achieving the same performance at a fraction of the cost.

Another interesting application is in lowering the operating temperature in solid oxide fuel cells.

A good reference on Nanotechnology in Electrocatalysis for Energy, which covers background fundamentals and some applications, can be read on Google Books for free.