One of the main barriers blocking wide-scale use of fuel cells is the expensive catalysts used to produce hydrogen fuel from water. Researchers at the University of Calgary say they have developed a novel method for making catalysts using inexpensive metals.
Suntech, a Chinese company that as recently as 2011 was the world’s largest producer of solar panels, is teetering on the edge of bankruptcy. It’s running low on cash, owes bond investors half a billion dollars (which it failed to pay Friday), and is saddled with payments on billions of dollars in loans as it struggles to make money in a market flooded with its product.
Bringing the concept of an “artificial leaf” closer to reality, a team of researchers at MIT has published a detailed analysis of all the factors that could limit the efficiency of such a system. The new analysis lays out a roadmap for a research program to improve the efficiency of these systems, and could quickly lead to the production of a practical, inexpensive and commercially viable prototype.
Such a system would use sunlight to produce a storable fuel, such as hydrogen, instead of electricity for immediate use. This fuel could then be used on demand to generate electricity through a fuel cell or other device. This process would liberate solar energy for use when the sun isn’t shining, and open up a host of potential new applications.
