Energy & Green Tech
Proton exchange membrane fuel cells (PEMFCs) hold promise as a replacement for fossil fueled engines in heavy-duty vehicles. Reducing the platinum content in catalysts is pivotal for scaling up in such applications. Yet, ...
Sep 22, 2023
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Energy & Green Tech
Researchers from the University of Tsukuba have developed a method for the real-time visualization of the current distribution inside a fuel cell through non-destructive diagnostics using magnetic sensors.
Sep 22, 2023
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Energy & Green Tech
The transportation of goods forms the basis of today's globally distributed supply chains, and long-haul trucking is a central and critical link in this complex system. To meet climate goals around the world, it is necessary ...
Sep 7, 2023
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Energy & Green Tech
Carbon capture is a promising method to help slow climate change. With this approach, carbon dioxide (CO2) is trapped before it escapes into the atmosphere, but the process requires a large amount of energy and equipment. ...
Aug 30, 2023
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90
Energy & Green Tech
Methylcyclohexane (MCH), a type of organic hydride, is expected to be an excellent hydrogen carrier because it remains liquid at room temperature, is easy to transport, has low toxicity, and has a higher hydrogen density ...
Aug 29, 2023
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Energy & Green Tech
Mathematical modeling can show how to safely blend hydrogen with carbon dioxide for transport in existing pipeline systems. A secure and reliable transition to hydrogen is one of the proposed solutions for the shift to a ...
Aug 22, 2023
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Engineering
A promising, more durable fuel cell design could help transform heavy-duty trucking and other clean fuel cell applications. Consisting of nanowires that are less susceptible to corrosion than other designs, the innovative ...
Aug 14, 2023
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112
Energy & Green Tech
Scientists at the University of New South Wales Sydney are working on ways to improve the efficiency and cost of hydrogen fuel cells, to increase access to clean fuel.
Aug 11, 2023
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Energy & Green Tech
A team from the University of Toronto's Faculty of Applied Science & Engineering has invented a device that leverages electrochemistry to increase the efficiency of direct air carbon capture. Their alternative strategy aims ...
Aug 10, 2023
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243
Energy & Green Tech
Engineers in Melbourne are vying for pole position in the global race to make a cheap rechargeable battery for storing solar energy that does not rely on scarce natural resources.
Jul 27, 2023
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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
