I D
× COMMENTARYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More
Chemical Engineering MagazineChementator Briefs
‘Green’ steelmaking Seamlessly following the successful completion of the GrInHy…
BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILEENVIRONMENTAL MANAGEREQUIPMENT & SERVICESFOCUS
Focus on Analyzers
A proportional level-output detector for pilot plants The Dynatrol CL-10GP…
NEW PRODUCTS + Show More

Comment

A photocatalyst for reducing CO2 without precious metals

By Tetsuo Satoh |

The research group of professor Osamu Ishitani at the Tokyo Institute of Technology (Japan; www.titech.ac.jp), in collaboration with the Institute of Advanced Industrial Science and Technology (AIST), has successfully demonstrated highly efficient, selective and durable photocatalytic CO2-reduction systems that only use abundant elements for the first time. The CO2-reduction photocatalysts use [Cu2(P2bph)2]2+ (CuPS) as a redox photosensitizer, where P2bph = 4,7-diphenyl-2,9-di(diphenylphosphinotetramethylene)-1,10-phenanthroline; and fac-Mn(X2bpy)(CO)3B (Mn(4X)) as the catalyst, where X2bpy = 4,4′-X2-2,2′-bipyridine (X = −H and −OMe) or Mn(6mes), where 6mes = 6,6′-(mesityl)2-2,2′-bipyridne). The most efficient photocatalysis was achieved with Mn(4OMe), which had a total quantum yield for CO 2 reduction products of 57%, a turnover number (based on the Mn catalyst) of over 1,300, and a selectivity for CO2 reduction of 95%. Electronic and steric effects of the substituents (X) in the Mn complexes largely affected both the photocatalytic efficiency and the product selectivity, according to the researchers. For example, the highest selectivity of CO formation was achieved by using Mn(6mes) (selectivity S CO…
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
3 Reasons to Automate Sensor Cleaning
Protect Your Turbines from Silica with a Low Maintenance Analyzer
Your Off-line pH Measurements Might Be Misleading and Costing You a Lot of Money
Reduce Explosion Risk in 2 Seconds with In Situ Oxygen Analysis
Tunable Diode Laser Spectroscopy in Critical Applications

View More

Live chat by BoldChat