Latest News: Technologies
A continuous process to make graphene
An inexpensive and scalable process that uses supercritical (SC) liquids to make large quantities of graphene is being developed by the group of professor Itaru Honma at the Institute of Multidisciplinary Research for Advanced Materials, Tohoku University (Sendai; db.tagen.tohoku.ac.jp), in…
A bi-metallic nanocluster catalyst for highly selective asymmetric C–C formation
Shu Kobayashi and his research group at the University of Tokyo (Japan; www.chem.s.u-tokyo.ac.jp/users/synorg/index_e.html) have developed a ruthenium-silver nanocluster catalyst for the highly selective 1,4-addition reaction for the formation of asymmetric carbon-carbon bonds. Previously, the group had used its polymeric incarceration…
Making graphene oxide in ‘a microwave’
Microwave irradiation of graphite has been shown to produce graphene oxide with 90% yield by the research group of professor Yuta Nishina, Research Core for Interdisciplinary Sciences, Okayama University (Okayama, www.tt.vbl.okayama-u.ac.jp/archives/809). The yield is not only nearly twice that obtained…
A renewable source for methane
Conventional methanation — the reaction of CO and H2 (synthesis gas) to form methane — has recently become important as a way to produce substitute natural gas (SNG) from gasified coal in regions of the world where natural gas is…
This molecular sieve has a trapdoor to selectively pass CO2
An Australian team has developed a new molecular sieve that allows carbon dioxide molecules to be trapped and stored. Contrary to the way molecular sieves usually work, allowing smaller molecules through, the new sieve acts like a trapdoor, and allows…
Oxidation-based water-reuse technology that improves mass transfer
A water-recycling system for the oil-and-gas industries developed by Ecosphere Technologies Inc. (Stuart, Fla.; www.EcosphereTech.com) is designed to destroy bacteria and control corrosion in high-volume wastewater-treatment applications using a proprietary oxidation process. The technology, called Ozonix, improves the mass-transfer efficiency…
Chementator Briefs
Nitrogen fixation The research groups of Yoshiaki Nishibayashi at the University of Tokyo (Japan; park.itc.u-tokyo.ac.jp/nishiba) and Kazunari Yoshizawa at Kyushu University (Fukuoka, Japan; trout.scc.kyushu-u.ac.jp/yoshizawaJ/indexe.html) have demonstrated the production of silylamine [N(SiMe3)3] from nitrogen gas using an iron-based catalyst. The reaction…
This pipe-cladding process applies corrosion-resistant coatings faster
The surface engineering company MesoCoat, Inc. (Euclid, Ohio; www.mesocoat.com) recently started up a facility for manufacturing clad pipe for the oil-and-gas industry that uses the company’s proprietary fusion-cladding technology to apply corrosion-resistant alloys to carbon-steel pipes. Because the cladding can…
Electrochemistry may have a future in CO2 cleanup
An electrochemical process that could cut the energy and cost requirements for stripping carbon dioxide from stack gases by half is being developed at Arizona State University (ASU, Tempe; www.asu.edu). At present the only commercially viable technology is CO2 absorption…
Physical chemistry principles point to a better way to clean up oil spills
One of the current methods for dealing with oil spills is through the use of dispersants. These dispersants, however, break oil into small globules that sink into the water, spreading the oil into a wider area, and they have toxic…