A Simple and Efficient Device and Method for Measuring the Kinetics of Gas‐Producing Reactions. Issue 48 (15th October 2019)

• Record Type: Journal Article
• Authors: Slot, Thierry K.; Shiju, N. Raveendran; Rothenberg, Gadi
• Is Part Of: Angewandte Chemie international edition. Volume 58:Issue 48(2019)
• Page Start: 17273
• Page End: 17276
• Publication Date: 2019-10-15
• Subjects: 3D printing -- ammonia borane -- Arrhenius -- reaction kinetics -- reaction mechanism; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201911005
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract: We present a new device for quantifying gases or gas mixtures based on the simple principle of bubble counting. With this device, we can follow reaction kinetics down to volume step sizes of 8–12 μL. This enables the accurate determination of both time and size of these gas quanta, giving a very detailed kinetic analysis. We demonstrate this method and device using ammonia borane hydrolysis as a model reaction, obtaining Arrhenius plots with over 300 data points from a single experiment. Our device not only saves time and avoids frustration, but also offers more insight into reaction kinetics and mechanistic studies. Moreover, its simplicity and low cost open opportunities for many lab applications. Abstract : Bursting the bubble : Quick, easy, and accurate Arrhenius plots from a single experiment were obtained. By using a new device for quantifying gases or gas mixtures based on the simple principle of bubble counting, it is possible to follow reaction kinetics down to volume step sizes of 8–12 μL.