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BEGIN:VEVENT
DTSTAMP:20260630T183457Z
UID:https://www.mpie.de/events/30105/4851377
DTSTART:20220426T140000Z
DTEND:20220426T150000Z
CLASS:PUBLIC
CREATED:20220128T063456Z
DESCRIPTION: Electrochemistry will play a pivotal role in our transition aw
 ay from fossil fuels to a net zero society. While batteries and fuel cells
  are set to decarbonise transportation\, electrolysers can enable the sust
 ainable synthesis of our most coveted chemicals\, such as H<sub>2</sub> an
 d NH<sub>3</sub>. It turns out that some of the reactions that we aim to a
 ccelerate in water electrolysis\, such as H<sub>2</sub> evolution\, are ex
 actly the reactions that we wish to inhibit in Li ion batteries and during
  N<sub>2</sub> reduction. To that end\, in our group we translate techniqu
 es and insight from battery science to electrosynthesis and vice versa. I 
 will present our mechanistic studies on the electrocatalysis of (i) O<sub>
 2</sub> evolution for water electrolysis on iridium based and nickel based
  oxides<sup>1</sup> and (ii) N<sub>2</sub> reduction to NH<sub>3</sub> on 
 Li-based electrodes in organic electrolytes<sup>2\,3</sup> and (iii) paras
 itic gas evolution in Li ion batteries. Our studies incorporate electroche
 mical measurements\, electrochemical mass spectrometry\, operando optical 
 spectroscopy\, secondary ion mass spectrometry\, x-ray photoelectron spect
 roscopy and density functional theory\; using the combination of these tec
 hniques\, we build a holistic picture of the factors controlling these tec
 hnologically critical reactions. 1 Francas\, L.\, Corby\, S.\, Selim\, S.\
 , Lee\, D.\, Mesa\, C.\, Godin\, R.\, Pastor\, E.\, Stephens\, I. E. L.\, 
 Choi\, K.-S. &amp\; Durrant\, J. <i>Nat. Commun.</i> 10\, 5208\, (2019). 2
  Andersen\, S. Z.\, Colic\, V.\, Yang\, S.\, Schwalbe\, J. A.\, Nielander\
 , A. C.\, McEnaney\, J. M.\, Enemark-Rasmussen\, K.\, Baker\, J. G.\, Sing
 h\, A. R.\, Rohr\, B. A.\, Statt\, M. J.\, Blair\, S. J.\, Mezzavilla\, S.
 \, Kibsgaard\, J.\, Vesborg\, P. C. K.\, Cargnello\, M.\, Bent\, S. F.\, J
 aramillo\, T. F.\, Stephens\, I. E. L.\, Norskov\, J. K. &amp\; Chorkendor
 ff\, I. <i>Nature</i> 570\, 504\, (2019). 3 Westhead\, O.\, Jervis\, R. &a
 mp\; Stephens\, I. E. L. <i>Science</i> 372\, 1149\, (2021).\nSpeaker: Ifa
 n E. L. Stephens
LAST-MODIFIED:20220128T063504Z
LOCATION:Online\, Room: Virtual Lecture
ORGANIZER;CN=Prof. Dierk Raabe:mailto:
SUMMARY:Translating insight from the catalysis of green hydrogen and ammoni
 a production to batteries and vice versa
URL;VALUE=URI:https://www.mpie.de/events/30105/4851377
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