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The photocatalytic reduction of CO2 into CO

Conversion of carbon dioxide into useful carbon sources, such as carbon monoxide, formic acid and formaldehyde, is attracting considerable interest as a way to recycle and utilize CO2. A step in this direction is the direct photocatalytic reduction of CO2…

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Making motors intelligent

At the Hannover trade fair (April 24–29; Hannover, Germany), ABB (Zurich, Switzerland; www.abb.com) introduced a new sensing solution for monitoring low-voltage motors. Smart sensors attached directly to the motor supply information regarding operating and condition parameters via wireless transmission. The…

Diamond-based electrodes allow handling of difficult-to-treat wastewaters

A scaled-up version of an electrochemical cell with boron-doped diamond electrodes has been introduced, and the system treats wastewaters containing difficult-to-oxidize dissolved pollutants. Known as Diamox, the electrochemical oxidation cell was developed by Element Six (www.e6.com), a designer and manufacturer…

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Sun and rain generate electricity in this solar cell

An all-weather solar cell that generates electricity by both sunlight and rain has been developed by researchers led by professor Qunwei Tang from the Institute of Material Science and Engineering at Ocean University of China (Qingdao; http://eweb.ouc.edu.cn) and professor Peizhi…

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Imitating cactus plants to improve membrane performance

Regulation of water content in polymeric membranes is important in several applications, including proton-exchange fuel cell membranes. Normally, this is achieved either by external regulation or by operating the cells at higher temperatures. Now a team from CSIRO (Melbourne, Australia;…

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Chementator Briefs

Biomass to sugar Plans are underway to build a commercial-scale sugar-production facility that uses a novel process for converting corn stover into high-purity glucose. The 95%-pure glucose syrup produced there will be used as a raw material in the production…

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Making complex silicone parts by 3-D printing

The field of additive manufacturing (AM) — often referred to as 3-D printing — has seen explosive growth in recent years (Chem. Eng., February 2015, pp. 20–23; www.chemengonline.com/3-d-printing-accelerates-creating-cpi-opportunities). In AM, no tools or molds are required to shape the desired…

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Extremophilic algae selectively recovers precious metals from solution

The research group of Ayumi Minoda at the University of Tsukuba (Japan, plmet.biol.tsukuba.ac.jp) has discovered that the cellular surface layer of the sulfothermophilic red algae, Galdieria sulphuraria, can efficiently adsorb gold and palladium ions, even in highly acidic conditions. G.…

Microbes make a meal of PET

Research groups at Keio University (Hiyoshi; www.bio.keio.ac.jp/labs/kmiyamoto) and Kyoto Institute of Technology, in collaboration with Teijin Ltd. and Adeka Corp., have discovered a bacterium that can degrade and assimilate poly(ethylene terephthalate) (PET), and have clarified the decomposition mechanism. This is…

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A joint effort to enable the production of sulfur-enhanced urea at large scale

Shell Thiogro (www.shell.com/sulphur/thiogro) and Uhde Fertilizer Technologies (UFT; www. uhde-fertilizer-technology.com), part of thyssenkrupp Industrial Solutions AG (Essen, Germany), have established a partnership to integrate UFT’s fluidized-bed (FB) granulation technology with Shell’s Urea-ES (enhanced sulfur) technology, which was introduced in May…