Summary
It helps the oxygen reduction reaction in zinc‑air batteries almost as well as platinum.
The material is made from common elements such as carbon, sulfur, nitrogen and hydrogen.
Its structure is a honeycomb‑like network full of tiny holes.
Lab tests showed it kept performance for about 120 hours.
Using this material could lower the price of clean‑energy devices like zinc‑air batteries and fuel cells.
Researchers also used computer simulations to see how the material works.