Latest News: Technologies
Paint a thermoelectric device onto any shaped surface to recover waste heat
Scientists from Ulsan National Institute of Science and Technology (UNIST; Ulsan, South Korea; www.unist.ac.kr), led by Prof Jae Sung Son, have succeeded in producing high-performance, solid-state thermoelectric (TE) materials with liquid-like properties that can be easily brush-painted on surfaces of…
Laminate packaging that is easier to recycle
A collaboration between ExxonMobil Chemical Co. (EMCC; Spring, Tex.; www.exxonmobilchemical.com) and Thanh Phu Plastic Packaging Co. (TPPP; Ho Chi Minh City, Vietnam; www.thanhphupack.com) has resulted in the development and commercialization of laminate packaging materials that can be collected and recycled…
This process converts organic food waste to liquid fertilizer
Large supermarkets routinely waste 500 lb of food daily from past-due produce, deli and meat scraps and other sources. A new process developed by California Safe Soil (CSS; McClellan, Calif.; www.calsafesoil.com) converts the nutrient-rich waste food into a liquid fertilizer…
A very fast way to continuously synthesize zeolites
For a long time, it has been believed that the crystallization of zeolites is, by nature, a very slow process. The hydrothermal synthesis of zeolites is normally performed batchwise, requiring crystallization times on the order of days. Now, Toru Wakihara…
Australians move to supply vanadium for redox flow batteries
Two Australian companies — Australian Vanadium Ltd. (AVL; www.australianvanadium.com.au) and TNG Ltd. (both Perth; www.tngltd.com.au) — are now able to produce commercial-grade vanadium electrolyte for use in vanadium redox-flow batteries (VRFBs). Those batteries are increasingly gaining favor, primarily for grid-scale…
Japanese consortium synthesize bifunctional oxygen-reaction catalysts
Researchers from the group of professor Ikuya Yamada at Osaka Prefecture University (Osaka, Japan; www.osakafu-u.ac.jp), in collaboration with the University of Tokyo, Japan Synchrotron Radiation Research Institute (Hyogo; www.spring8.or.jp) and Fuji Die Co. (Tokyo; www.fujidie.co.jp), have synthesized for the first…
An inexpensive adsorbant for removing silver from wastewater
The release of silver from industrial wastewater has caused serious environmental problems. Many methods have been developed to remove silver ions from industrial wastewater, including chemical precipitation, ion exchange, electrolysis, replacement, membrane and reverse osmosis. Several adsorbents have been used…
A process for making longer carbon nanotubes
A new commercial manufacturing process for carbon nanotubes (CNTs) produces tubes in the range of 1–10 mm in length (5–12-nm dia.), two orders of magnitude longer than currently available CNTs, which typically have lengths from 5–20µm. “Despite attractive mechanical and…
Low-cost carbon-fiber production plant poised to break ground
Demand for carbon fiber (CF), which can be used to make strong, lightweight composite materials for improving vehicle fuel economy and wind-power generation, has been growing. However, widespread use of these advanced composites has been limited by the high production…
Converting sewage into fuels
Pacific Northwest National Laboratory (PNNL; Richland, Wash.; www.pnnl.gov) has developed a hydrothermal liquification (HTL) process that converts sewage sludge directly into “biocrude oil,” which can then be refined by conventional methods into liquid fuels, such as gasoline, diesel and jet…