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KAUST's Discovery highlights our work: A simple nose for noxious gases

posted Mar 27, 2017, 8:34 PM by Khaled salama   [ updated Apr 22, 2017, 8:08 PM ]

Better known as “sewer gas” for its characteristic rotten-egg odor, hydrogen sulfide doesn’t just smell bad; it is harmful to humans at concentrations as low as just a few parts per million (ppm). In industrial settings, where hydrogen sulfide release is a risk factor, including oil and gas refining and sewage treatment plants,  gas-sensing systems based on gas chromatography are typically deployed; however, these systems are bulky, complex and expensive. Recently, KAUST researchers developed a MOF-based sensor that can selectively sense hydrogen sulfide at concentrations of just a few parts per billion (ppb)1. Their method of altering the structure of the MOF electrode coating allows them to detect a range of gases. More details are found KAUST Discovery,, ECNmag

Omar Yassine, Osama Shekhah, Ayalew H. Assen, Youssef Belmabkhout, Khaled N. Salama and Mohamed Eddaoudi "H2S Sensors: Fumarate-Based fcu-MOF Thin Film Grown on a Capacitive Interdigitated Electrode" , Angew. Chem. Int. Ed.. doi:10.1002/anie.201608780
This builds on our earlier work with Eddaoudi's group:
  1. Sapsanis, C.; Omran, H.; Chernikova, V.; Shekhah, O.; Belmabkhout, Y.; Buttner, U.; Eddaoudi, M.; Salama, K.N. Insights on Capacitive Interdigitated Electrodes Coated with MOF Thin Films: Humidity and VOCs Sensing as a Case Study.Sensors15, 18153-18166, 2015.