Write the definition of energy on the board. (Energy is the capacity to do work.) Make a two-column chart on the board similar to the one below and have students brainstorm examples for each form of ...

Microbial fuel cells, as they're called, have been around for more than 100 years. They work a little like a battery, with an anode, cathode and electrolyte – but rather than drawing electricity from ...

On paper, the workings of a hydrogen fuel cell sound straightforward enough: An electrochemical reaction occurs between hydrogen and oxygen that converts chemical energy into electrical energy. In ...

Fuel cells convert the chemical energy from a fuel into electricity through a chemical reaction of positively charged hydrogen ions with oxygen or another oxidizing agent. They differ from batteries ...

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.

In order for a fuel cell to work, it needs an oxidizing agent. Scientists have now found a way to explain why oxygen does not always enter fuel cells effectively, rendering them unusable. Fuel cells ...

The fuel cell's 3D printed cap peeks above the ground. The cap keeps debris out of the device while enabling air flow. New fuel cell harnesses naturally occurring microbes to generate electricity Soil ...

Solid oxide fuel cells (SOFCs), which oxidize a fuel to produce electricity, have received much attention of late for the technology’s myriad benefits, including high efficiency, long-term stability, ...

(Nanowerk Spotlight) There are many competing types of fuel cells, depending on what kind of fuel and oxidant they use. Many combinations of fuel and oxidant are possible. For instance, a hydrogen ...