Energy & Green Tech
French national railway SNCF said Thursday it has ordered 12 hydrogen-powered trains to begin tests in four regions in 2023 as it eyes a zero-emissions future with the nascent technology.
Apr 8, 2021
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30
Engineering
To create a sustainable road traffic system, hundreds of thousands of fuel cells will be needed for hydrogen-powered cars in the future. Until now, though, fuel cell production has been complex and too slow. The Fraunhofer ...
Mar 31, 2021
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6
Energy & Green Tech
It's seen as the missing link in the race for carbon-neutrality: "green" hydrogen produced without fossil fuel energy is a popular buzzword in competing press releases and investment plans across the globe.
Mar 31, 2021
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226
Energy & Green Tech
Solar cells are excellent renewable energy tools that use sunlight to drive an electrical current for power. They've been used to power homes since the 1980s, and their performance and production cost have improved dramatically ...
Mar 29, 2021
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12
Energy & Green Tech
EPFL startup INERGIO has just unveiled a prototype for a lightweight, eco-friendly, high-performance fuel cell that can supply energy in situations where there's no power grid. Its system can be used to run delivery drones, ...
Mar 22, 2021
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23
Energy & Green Tech
A recent study, affiliated with UNIST has unveiled a novel system, capable of producing hydrogen and electricity quickly and effectively while eliminating carbon dioxide (CO2) emissions significantly.
Mar 17, 2021
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4
Energy & Green Tech
When it comes to electric vehicles, particularly for heavy-duty trucks, the limitations of battery technology are often seen as the main barrier to widespread adoption. However, a new analysis concludes that it's the lack ...
Mar 16, 2021
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5
Business
COVID-19 has led to a dramatic decrease in passenger air travel, which has also resulted in a decrease in carbon dioxide emissions. The reduced demand for passenger air travel brings with it an opportunity for the aviation ...
Mar 16, 2021
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5
Energy & Green Tech
Two U.S. senators from states with declining manufacturing sectors are pushing to invest $8 billion through tax credits to create clean energy jobs.
Mar 1, 2021
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5
Energy & Green Tech
Every year, hundreds of millions of tons of CO2 are emitted through maritime transport, causing serious harm to the climate. As scientists around the world test new propulsion methods capable of replacing fuel oil in ships, ...
Mar 1, 2021
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A fuel cell is an electrochemical conversion device. It produces electricity from fuel (on the anode side) and an oxidant (on the cathode side), which react in the presence of an electrolyte. The reactants flow into the cell, and the reaction products flow out of it, while the electrolyte remains within it. Fuel cells can operate virtually continuously as long as the necessary flows are maintained.
Fuel cells are different from electrochemical cell batteries in that they consume reactant from an external source, which must be replenished – a thermodynamically open system. By contrast, batteries store electrical energy chemically and hence represent a thermodynamically closed system.
Many combinations of fuels and oxidants are possible. A hydrogen fuel cell uses hydrogen as its fuel and oxygen (usually from air) as its oxidant. Other fuels include hydrocarbons and alcohols. Other oxidants include chlorine and chlorine dioxide.
The principle of the fuel cell had been demonstrated by Sir William Grove in 1839, and other investigators had experimented with various forms of fuel cell. The first practical fuel cell was developed by Francis Thomas Bacon in 1959.
This text uses material from Wikipedia, licensed under CC BY-SA
