Carbon Nanotubes (CNT)

Are carbon nanotube (CNT) membranes now at large scale? Texas – Connecticut – USA

Startup Mattershift says it has achieved a breakthrough in making carbon nanotube (CNT) membranes at large scale. The startup is developing the technology’s ability to combine and separate individual molecules to make gasoline, diesel, and jet fuel using CO2 removed from the air. In an open-access paper in Science Advances, researchers from Mattershift and colleagues in the labs of Dr. Benny Freeman at The University of Texas at Austin and Dr. Jeffrey McCutcheon at the University of Connecticut confirmed that Mattershift’s large-scale CNT membranes match the characteristics and performance of small prototype CNT membranes previously reported on [
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Are carbon nanotube (CNT) membranes now at large scale? Texas – Connecticut – USA2018-03-12T12:24:32+01:00

Carbon nano tubes

Scientists are using carbon nanotubes as a filter to desalinate water


“We found that carbon nanotubes with diameters smaller than a nanometer bear a key structural feature that enables enhanced transport. The narrow hydrophobic channel forces water to translocate in a single-file arrangement, a phenomenon similar to that found in the most efficient biological water transporters,” said Ramya Tunuguntla, an LLNL postdoctoral researcher. The nanotube pores have been specifically sized to filter water molecules in a single file, effectively let through as much as possible while blocking the larger salt ions. This method means far faster desalination times. “You can imagine [
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Carbon nano tubes2017-09-11T16:50:34+02:00

New way to recover almost 100 percent of the water from highly concentrated salt solutions




the researchers developed a self-heating carbon nanotube-based membrane that only heats the brine at the membrane surface. The new system reduced the heat needed in the process and increased the yield of recovered water to close to 100 percent.

In addition to the significantly improved desalination performance, the team also investigated how the application of alternating currents to the membrane heating element could prevent degradation of the carbon nanotubes in the saline environment. Specifically, a threshold frequency was identified where electrochemical oxidation of the nanotubes was prevented, allowing the nanotube films to be operated for significant lengths of [
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New way to recover almost 100 percent of the water from highly concentrated salt solutions2017-05-30T10:38:31+02:00
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