I D
× COMMENTARYCOVER STORYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More
Chemical EngineeringChementator briefs
Isononyl alcohol Last month, Dow, Inc. (Midland, Mich.; www.dow.com) and…
BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILEENGINEERING PRACTICEEQUIPMENT & SERVICESFOCUS
Focus on Temperature
The world’s first temperature transmitter with Bluetooth Last November, this…
NEW PRODUCTS + Show More

Comment

A highly efficient microwave reactor continuously produces metallic nanoparticles

By Tetsuo Satoh |

The process, developed by Masateru Nishioka at the Research Center for Compact Chemical Process, Institute of Advanced Science and Technology (AIST; Sendai; www.aist.go.jp) in collaboration with Shinko Kagaku (Koshigaya; www.shinkou-kagaku.co.jp), uses a microwave-assisted flow reactor developed by AIST and IDX Inc. (Tokyo, all Japan; english.idx-net.co.jp). The researchers found that they can uniformly heat the catalyst and reactants at the center of the vertical tubular reactor, and can control the reaction temperature by varying the frequency of the microwaves using a tunable, semiconductor microwave generator. Using ethylene glycol as a solvent for the nanoparticle synthesis, the heating efficiency (conversion of microwave energy to thermal energy) of the system is more than 95%, compared to around 40% achieved by existing microwave heating devices. The system has been demonstrated for producing metallic nanoparticles from a wide range of feed materials. For example, gold particles with 10-nm dia. and narrow size distribution have been produced. The group is now developing a compact microwave generator for manufacturing processes. The technology is expected to be used for the production of nanoparticles as well as for performing…
Related Content
Chementator briefs
Isononyl alcohol Last month, Dow, Inc. (Midland, Mich.; www.dow.com) and Johnson Matthey (London, U.K.; www.matthey.com) announced that Zibo Qixiang Tengda…

Chemical Engineering publishes FREE eletters that bring our original content to our readers in an easily accessible email format about once a week.
Subscribe Now
The Big 6 level measurement technologies
6 benefits to expect from a measurement partner
Expect more from your measurement with ABB
Wet process analyzer for FPD and solar cell manufacturing for semi-conductors
Crude distillation unit (CDU) optimization

View More