Electronics & Semiconductors
Can we contribute to the worldwide energy challenge by maximizing the efficiency in power conversion at a low cost? The answer is: YESvGaN! The goal of the YESvGaN consortium is to create a new class of vertical power transistors ...
Nov 4, 2022
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18
Engineering
While on missions without access to clean water, U.S. Marines face the challenge of procuring and storing enough drinking water to sustain them. Penn State researchers, led by Chris Arges, Penn State associate professor of ...
Sep 8, 2022
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7
Energy & Green Tech
Every day, large quantities of whey are produced as a byproduct by the dairy industry. In Germany alone, this amounts to 12.6 million tons a year. For each kilogram of cheese, for example, 9 kilograms of whey are produced. ...
Sep 1, 2022
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5
Engineering
Clean water is essential for human survival. However, less than 3% of fresh water can be used as drinking water. According to a report published by the World Meteorological Organization, there is scarcity of drinking water ...
Aug 25, 2022
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47
Energy & Green Tech
Hydrogen production takes place using natural gas as the raw material, combined with a very special ceramic membrane. Both hydrogen production and CO2 capture are achieved in a single step, which makes the method highly energy ...
Jul 28, 2022
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185
Energy & Green Tech
A team from the Department of Energy Engineering at the University of Seville has developed an experimental research focused on the design of a bio-inspired PEM fuel cell. The model they have obtained has reached a maximum ...
Jul 18, 2022
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3
Engineering
As demand for new energy sources grows, the wastewater co-produced alongside oil and gas (produced water) shows no signs of slowing down: The current volume of wastewater—the result of water forced underground to fracture ...
Jun 8, 2022
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17
Engineering
Due to its zero carbon, safe storage, and high energy density, liquid ammonia is a promising marine fuel in the shipping industry.
May 6, 2022
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22
Energy & Green Tech
A new approach to battery design could provide the key to low-cost, long-term energy storage, according to Imperial College London researchers.
May 3, 2022
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583
Energy & Green Tech
The need for negative emissions technologies to address our climate crisis has become increasingly clear. At the rate that our planet is emitting carbon dioxide—adding about 50 gigatons every year—we will have to remove ...
Apr 21, 2022
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32
A membrane is a layer of material which serves as a selective barrier between two phases and remains impermeable to specific particles, molecules, or substances when exposed to the action of a driving force. Some components are allowed passage by the membrane into a permeate stream, whereas others are retained by it and accumulate in the retentate stream.
Membranes can be of various thickness, with homogeneous or heterogeneous structure. Membrane can also be classified according to their pore diameter. According to IUPAC, there are three different types of pore size classifications: microporous (dp < 2nm), mesoporous (2nm < dp < 50nm) and macroporous (dp > 50nm). Membranes can be neutral or charged, and particles transport can be active or passive. The latter can be facilitated by pressure, concentration, chemical or electrical gradients of the membrane process. Membranes can be generally classified into three groups: inorganic, polymeric or biological membranes. These three types of membranes differ significantly in their structure and functionality.
This text uses material from Wikipedia, licensed under CC BY-SA
