Engineering
Refining metals, manufacturing fertilizers and powering fuel cells for heavy vehicles are all processes that require purified hydrogen. But purifying, or separating, that hydrogen from a mix of other gases can be difficult, ...
Mar 29, 2022
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286
Energy & Green Tech
Tsunamis, hurricanes, and maritime weather are monitored using sensors and other devices on platforms in the ocean to help keep coastal communities safe—until the batteries on these platforms run out of juice. Without power, ...
Jan 12, 2023
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56
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
Engineering
From the moment you first use it, a new lithium-ion battery is degrading. After a few hundred charge cycles, you'll notice—your phone, laptop or electric car battery wears out more quickly. Eventually, it stops holding ...
Dec 22, 2022
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110
Engineering
MIT chemical engineers have devised an efficient way to convert carbon dioxide to carbon monoxide, a chemical precursor that can be used to generate useful compounds such as ethanol and other fuels.
Mar 27, 2024
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175
Engineering
Proton-exchange membrane fuel cells (PEMFCs) are a promising energy solution for reducing carbon emissions in the transport sector. As suggested by their name, these cells contain a proton-conducting membrane based on polymer ...
Energy & Green Tech
Secondary batteries, such as lithium ion batteries, need to be recharged once the stored energy is used up. In a bid to decrease our dependence on fossil fuels, scientists have been exploring sustainable ways to recharge ...
Dec 23, 2021
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33
Energy & Green Tech
The energy density of supercapacitors—battery-like devices that can charge in seconds or a few minutes—can be improved by increasing the 'messiness' of their internal structure.
Apr 18, 2024
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47
Energy & Green Tech
Scientists at Lawrence Berkeley National Laboratory (Berkeley Lab) have developed a conductive polymer coating—called HOS-PFM—that could enable longer lasting, more powerful lithium-ion batteries for electric vehicles.
Mar 7, 2023
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27
Engineering
A simple method for making clear coatings that can block heat and conduct electricity could radically cut the cost of energy-saving smart windows and heat-repelling glass.
Aug 5, 2020
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61
An electrode is an electrical conductor used to make contact with a nonmetallic part of a circuit (e.g. a semiconductor, an electrolyte or a vacuum). The word was coined by the scientist Michael Faraday from the Greek words elektron (meaning amber, from which the word electricity is derived) and hodos, a way.
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