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 Pt-free electrode promises to cut costs for fuel cells and metal-air batteries

By Tetsuo Satoh |

Hiroya Abe and colleagues at Tohoku University (Sendai, www.tohoku.ac.jp) and Hokkaido University have developed a method to fabricate a highly active catalyst electrode for performing the oxygen reduction reaction (ORR) in fuel cells and metal-air batteries. Currently, such fuel cells and metal-air batteries need expensive platinum-based carbon (Pt/C) electrodes for the reaction. The research group has designed a new class of Pt-free catalysts that included molecular iron phthalocyanine (FePc) derivatives, namely, iron azaphthalocyanine (FeAzPc) unimolecular layers (Fe AzULs) adsorbed on oxidized multiwall carbon nanotubes (oxMWCNTs). FeAzPcs were dissolved in organic solvents such as dimethyl sulfoxide (DMSO), and catalytic electrodes modified with molecularly adsorbed FeAzPcs were successfully prepared. The optimized composition of the catalytic electrodes was determined, and the electrodes exhibited superior activity for the ORR, as well as being more durable than conventional FePc catalytic electrodes and commercial Pt/C. The catalytic electrodes that were molecularly modified with FeAzPcs have higher activities than those composed of FeAzPc crystals and oxMWCNTs. Unlike other Pt-free catalytic electrodes, the Fe AzUL catalytic…
Related Content

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