Chementator
New lithium-battery production concept offers smaller footprint and higher energy efficiency
The market for lithium-ion batteries continues to grow, driven by demands for consumer electronics, renewable energy storage and electric vehicles. The manufacture of these batteries is itself energy-intensive, with production steps that typically involve creating a slurry for a wet-coating…
Adapting thin-film polymers for membrane separation of liquid hydrocarbons
Thin-film polymer membranes have been very effective for industrial-scale desalination of seawater, but have not been used for separation of liquid hydrocarbon mixtures because oil-separation membranes tend to absorb oil components and swell, which eliminates their size-sieving ability to separate…
A new demonstration plant expands the horizons of post-consumer recycling
Operations are planned to start up soon at a first-of-its-kind recycling demonstration plant in Monthey, Switzerland. Employing a proprietary reaction technology developed by DePoly S.A. (Sion, Switzerland; www.depoly.co), the plant is set to treat up to 500 tons/yr of polyethylene…
This MOF selectively adsorbs CO2 from biogas and can be regenerated under mild conditions
Biogas — produced from anaerobic digestion of organic matter — contains a mixture of gases, with methane and carbon dioxide as the predominant components. To use biogas as a fuel source, purification of the gas is typically needed to remove…
Direct synthesis of C2 hydrocarbons using photoelectrochemistry
Researchers from the Lawrence Berkeley National Laboratory (Berkeley, Calif. www.lbl.gov), along with a host of collaborators, have made progress on an artificial photosynthesis system that converts CO2 into ethane and ethylene using nanostructured copper and perovskite. In a recent publication…
Conversion of CO2 gas to graphene successfully demonstrated
The ability to economically produce large scales of graphene will help to enable many high-performance applications, from smart packaging materials and medical devices to safer gas storage. A new process demonstrated at Southwest Research Institute (SwRI; San Antonio, Tex.; www.swri.org)…
Creating microgels for drug delivery by ion exchange
One method used to deliver drugs in a controlled manner is to encapsulate them in an injectable gel. Microgels — hydrogel particles made of synthetic or natural polymers with a high water content that measure about 1 to 100 micrometers…
This single-pot reaction scheme could open the path to recycling used tires
Recycling vehicle tires is complicated because the rubbers used (including butadiene and polyisoprene) are highly cross-linked, and because pyrolysis-based recycling of the rubbers generates environmentally hazardous compounds like benzene and dioxins. Now, researchers at the University of North Carolina at…
Non-fluorinated coatings reach new heights with first oil- and water-repellent textile product
As industries and consumers have shown an increasing preference for water and oil repellents that do not include any fluorinated materials, significant efforts and years of research and testing have gone into developing non-fluorinated alternatives. AGC Chemicals Americas, Inc. (AGCCA;…
Direct cryo-compression of gaseous hydrogen: the “best of both worlds” between liquefaction and compression
Safe and cost-effective storage represents one of the major hurdles in the widespread adoption of “clean” hydrogen in energy applications. A hydrogen-storage approach called cryo-compression is being poised as a bridge between high-density (but expensive) hydrogen liquefaction and cheaper (but…