Applying a tiny coating of costly platinum just 1 nanometer thick—about 1/100,000th the width of a human hair—to a core of much cheaper cobalt could bring down the cost of fuel cells.
This microscopic marriage could become a crucial catalyst in new fuel cells that use generate electricity from hydrogen fuel to power cars and other machines. The new fuel cell design would require far less platinum, a very rare metal that sold for almost $900 an ounce the day this article was produced.
“This technique could accelerate our launch out of the fossil-fuel era,” says Chao Wang, an assistant professor of chemical and biomolecular engineering at Johns Hopkins University and senior author of a study published in the journal Nano Letters.
“It will not only reduce the cost of fuel cells,” Wang says. “It will also improve the energy efficiency and power performance of clean electric vehicles powered by hydrogen.”





A new issue of ECS Transactions (ECST) has just been published. This issue incorporates 42 papers presented at the 18th International Conference on Advanced Batteries, Accumulators and Fuel Cells (ABAF 2017). This conference was held in Brno, Czech Republic, September 10-13, 2017.
In the Fall of 2011, Sarah Mackenzie, the maid of honor at my wedding, was diagnosed with a rare form of ovarian cancer. Sarah and her family were motivated to learn as much as they could about the disease to advocate for her care. They weren’t scientists, but they started searching the literature for relevant articles. One evening, Sarah called us, angry. Every time she found an article that might be relevant to understanding her disease, she ran into a paywall requiring $15-$40 to access it. Public money had paid for the research, yet she was barred from making any use of it. Luckily, she had us. Most people in Sarah’s position don’t have the luxury of friends at wealthy academic institutions with subscriptions to the literature.