ID
× COMMENTARYCOVER STORYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More
Chemical Engineering MagazineChementator Briefs
New adsorbent Last month, BASF SE (Ludwigshafen, Germany; www.basf.com) launched…
BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILEENGINEERING PRACTICEENVIRONMENTAL MANAGEREQUIPMENT & SERVICESFOCUS
ConvalFocus on Valves
These versatile, modular valves enable quick installation More than 2,500…
NEW PRODUCTS + Show More

Comment

Enhanced perovskites

By Paul Grad |

Researchers from the Ulsan National Institute of Science and Technology (Ulsan; www.unist.ac.kr) have found a new way to increase the energy efficiency of metal-air batteries — which are next-generation energy devices — by adding the conducting polymer polypyrrole (pPy). According to the researchers, when either a perovskite or pPy are used alone, their catalytic activity cannot match that of platinum, but when used together, however, their catalytic effect matched that of platinum. Nitrogen-containing electrocatalysts, such as metal-nitrogen-carbon composites and nitrogen-doped carbons, are known to exhibit high activity for an oxygen-reduction reaction. However, a strong electronic interaction between nitrogen and active sites has been found in these composites. The researchers demonstrated a case in which nitrogen improves the electroactivity, but in the absence of a strong interaction with other components. The researchers thus found a way of increasing the catalytic activity of perovskite oxide catalysts for the oxygen-reduction reaction (ORR) or oxygen-evolution reaction (OER) in rechargeable metal-air batteries and fuel cells.                                
Related Content
Chementator Briefs
New adsorbent Last month, BASF SE (Ludwigshafen, Germany; www.basf.com) launched Sorbead Air, an efficient adsorbent for drying compressed air. The…

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
How can accurate pH measurement prevent power plant corrosion?
Five Reasons Why Chemical Companies Are Switching to Tunable Diode Laser Analyzer Technology
Simplify sensor handling and maintenance with ISM
Three reasons to measure pH in-line
ABB Ability™ technology to transform BASF rotating equipment into intelligent machinery and improve uptime and reliability

View More

Live chat by BoldChat