PEM fuel cells have good efficiency and low operating temperature and could play an important role in power generation in the future. They are currently the leading technology for automotive ...

One of the key challenges in optimal operation of PEM hydrogen cells is to ensure optimal distribution of the liquid water inside them. Excessive accumulation of water can clog proton and electron ...

Future propulsion and energy systems must be designed to meet the social challenges of climate change, increased energy requirements, and the mobility and energy demands of a growing world population.

Can you provide an overview of how hydrogen fuel cells work? Hydrogen polymer electrolyte membrane (PEM) fuel cells use hydrogen and oxygen to produce electricity through an electrochemical reaction.

Mechanisms of the bulk and local oxygen transport in cathode catalyst layers (CCLs) in proton exchange membrane fuel cells (PEMFCs) are presented. State-of-the-art strategies to mitigate the oxygen ...

The PEM fuel cell test in New York demonstrated the viability of this technology at 3 MW, the first time at the scale of a backup generator at a data center. Meanwhile, a Spanish-Indian venture will ...

Large radiators are needed to air-cool the low-temperature PEM fuel cells. Credit: ZeroAvia With demonstrator powertrains developed by startups ZeroAvia and Universal Hydrogen now flying on testbed ...

Early last September, the U.S. Federal Aviation Administration (FAA) made its first move to allow unmanned commercial aircraft—drones—to fly beyond the sight of their operators. The agency will begin ...

The generator can be combined with batteries, solar panels, or small wind turbines. It is based on a proton exchange membrane fuel cell technology and is claimed to have a minimum lifetime of 5,000 ...