Latest News: Technologies
Graphene-oxide filtration membrane for harsh chemical environments
Filtration is being investigated as an alternative to thermal separation methods (such as distillation and evaporation) in many applications because of the potential energy savings, but conventional filtration membranes, such as those used in water desalination, are often not robust…
Nanoengineered catalysts can upcycle polyethylene
Drawing inspiration from the enzymatic breakdown of macromolecules in cellular systems, scientists at Ames Laboratory (Ames, Iowa; www.ameslab.gov) have developed a nanostructured catalyst that can break down high-density polyethylene (HDPE) and other polyolefins into a narrow distribution of diesel- and…
This nanoengineered catalyst converts mixed, impure waste to biodiesel
In an example of a biologically inspired and nano-engineered catalyst, researchers at RMIT University (Melbourne, Australia; www.rmit.edu.au) have developed ceramic catalyst particles with a porous network organized hierarchically, where one chemical reaction takes place within larger pores, while a second…
Tubular sieves for extracting lithium from brines
Researchers from the College of Chemical Engineering, Nanjing Tech University (Nanjing, China; www.njtech.edu.cn) have developed a new strategy for forming lithium ion-sieve membranes to achieve an efficient recovery of lithium ions from brine or seawater. Spinel lithium manganese oxide ion-sieves…
A novel, structural, carbon-negative cement
Magnesia cements have been around for thousands of years, and have been explored extensively over recent decades primarily because of their capacity to absorb CO2 from the atmosphere at ambient temperatures. Until now, however, their use has been limited to…
Nanoparticles improve lubricant performance in friction and wear prevention
Nanoscale materials have been added to engine lubricants to enhance performance for some time, but the use of such materials has been limited by their inability to remain suspended in the oils, and by their tendency to darken the color…
New investment announced in platform technology for bio-based monomers
Zymergen (Emeryville, Calif.; www.zymergen.com) recently announced $300 million in new investments for the company’s fermentation-based platform technology that generates novel bio-based monomers for specialty products applications. Combining synthetic biology with machine-learning-enhanced automated screening, Zymergen’s technology has demonstrated the capability to…
Acetylene-selective MOFs for ethylene purification
Ethylene is an important petrochemical, but it may contain traces of acetylene that can destroy the catalysts used in downstream processes. The separation of ethylene and acetylene is difficult, and the main method, distillation, is energy intensive. A potential alternative…
A sandwich catalyst boosts H2 production
Platinum has been the main catalyst for hydrogen-producing reactions, but it has a low affinity for water molecules. This results in a slow rate of water electrolysis. Attempts have been made to combine metal-sulfide with platinum nanoparticles that promote water…
First full integration of hydrogen production, distribution, storage and use is underway
The recently launched H2@Scale project is integrating a number of elements necessary for the commercial-scale integrated production and use of renewable hydrogen. Hosted by the University of Texas at Austin (www.utexas.edu) and funded through the Energy Efficiency and Renewable Energy…