Scientists Follow 150-Year-Old Trail to Clean Fuel of the Future

Sign up for daily news updates from CleanTechnica on email. Or follow us on Google News!

Los Alamos scientists develop catalyst for cheaper hydrogen fuel cellThe great promise of hydrogen fuel cells is their potential to take hydrogen generated by low cost solar power, and put it to work at moving your car from point A to point B – all with zero emissions. But, there’s a catch. The current technology relies on a tiny dose of platinum, which at current prices of $1800 per ounce has kept the cost of hydrogen fuel cells too high for the mass market. Now a team of scientists from Los Alamos National Laboratory has found a less expensive alternative, using low cost blend of iron, cobalt, and a form of carbon partly derived from polyaniline, a compound that was first discovered 150 years ago.

The Long Trail of Polyaniline

Polyaniline was first produced from indigo (the dye that puts the blue in blue jeans) in the 1840’s or the 1860’s, depending on who’s talking. In any case it took a while to catch on, but in the 1980’s polyaniline finally became of interest to researchers due to its high electrical conductivity, and the fact that it is relatively stable and easy to produce. In terms of alternative energy polyaniline shares something of a love triangle with phthalocyanines, which are also used in dying blue jeans, and are the subject of research as solar energy collectors.

Polyaniline in Hydrogen Fuel Cells

In a conventional hydrogen fuel cell, platinum is the preferred catalyst that sparks the production of electricity. The Los Alamos team found that their carbon-iron-cobalt substitute yielded currents comparable to platinum. It also compared well in other tests, such as durability when the fuel cell is cycled on and off, and efficiently converting hydrogen and oxygen into water. An inferior conversion process yields a large amount of hydrogen peroxide, an undesirable byproduct, aside from shortening the efficiency and lifespan of the fuel cell.

Next Steps to a Cheaper Fuel Cell

So far the researchers know that the new catalyst works, but they need to determine exactly how and why it works before it can be developed into a more efficient and durable product suitable for commercial development.

Image: Traffic jam by repres on

Have a tip for CleanTechnica? Want to advertise? Want to suggest a guest for our CleanTech Talk podcast? Contact us here.

Latest CleanTechnica TV Video

I don't like paywalls. You don't like paywalls. Who likes paywalls? Here at CleanTechnica, we implemented a limited paywall for a while, but it always felt wrong — and it was always tough to decide what we should put behind there. In theory, your most exclusive and best content goes behind a paywall. But then fewer people read it!! So, we've decided to completely nix paywalls here at CleanTechnica. But...
Like other media companies, we need reader support! If you support us, please chip in a bit monthly to help our team write, edit, and publish 15 cleantech stories a day!
Thank you!

CleanTechnica uses affiliate links. See our policy here.

Tina Casey

Tina specializes in advanced energy technology, military sustainability, emerging materials, biofuels, ESG and related policy and political matters. Views expressed are her own. Follow her on LinkedIn, Threads, or Bluesky.

Tina Casey has 3234 posts and counting. See all posts by Tina Casey