A new type of steam-reforming system that produces — in a single step — purified, compressed hydrogen from methane has been developed by a team of scientists from CoorsTek Membrane Sciences AS (Oslo; www.coorstek.com), the University of Oslo (both Norway;…
A team from the National University of Singapore (www.nus.edu.sg) led by professor Boon Siang Yeo has developed a prototype device that uses artificial photosynthesis to produce ethylene using only sunlight, water and CO2, at room temperature and pressure. The team…
Perovskite solar cells have attracted much interest in the past few years as the next-generation solar cells capable of surpassing silicon cells’ efficiency. However, because the perovskite materials are easily decomposed in moist conditions, they must be properly encapsulated, which…
Scientists from ExxonMobil (Irving, Tex.; www.exxonmobil.com) and the Institute of Chemical Technology (ITQ; Valencia, Spain; http://itq.upv-csic.es) have discovered a new material that could significantly reduce the amount of energy and emissions associated with the production of ethylene. Depending on the…
H2SO4 Catalyst BASF SE (Ludwigshafen, Germany; www.basf.com) has introduced a new catalyst for making sulfuric acid. The cesium-based O4-115 Quattro catalyst has a unique geometrical shape — a combination of four strands — leading to a 30% greater catalytic surface…
In boilers, silicates can volatilize with the generated steam and then form silicate glass on turbine blades, causing an imbalance. Therefore, the concentration of silicates in boiler circuits must be reduced to below 0.5 parts per million (ppm). The conventional…
A new adsorption-based technology can separate ozone from oxygen in O3-generating systems, allowing recycling of unreacted O2. In corona-discharge O3 generation, O2 molecules are split by passage through an electric field to create free oxygen atoms, which quickly combine with…
Researchers at the Georgia Institute of Technology (Ga. Tech; Atlanta; www.gatech.edu) have demonstrated a precision-machining technique to manufacture an entire pumping loop from materials that can withstand temperatures as high as 1,400–1,600°C. These materials are typically thought to be too…
Polymer-electrolyte fuel cells (PEFCs) are promising devices for clean power generation in automotive, stationary and portable applications. Up to now, the proton exchange membranes (PEMs) used in PEFCs have been based on perfluorosulfonic acid (PFSA) ionomers (for example, Nafion). However,…
A new process for producing lithium titanate oxide (LTO) anode materials could lead to smaller batteries with ultrafast recharging. LTO offers a significantly higher surface area than graphite anode materials, which enables rapid electron transit and, ultimately, much faster recharging…