BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Enabling the sustainable production of our most coveted chemicals 
 through improved catalysis - Ifan E. L. Stephens\; Imperial College London
DTSTART:20200618T140000Z
DTEND:20200618T150000Z
UID:TALK148756@talks.cam.ac.uk
CONTACT:Yonatan Calahorra
DESCRIPTION:Our most commonly produced chemicals\, such as hydrogen\, ethy
 lene\, ammonia and hydrogen peroxide\, are currently produced in large-sca
 le centralised plants\, resulting in\ncolossal CO 2 emissions. Moreover\, 
 the transport of these reactive compounds to the end user poses significan
 t safety and logistical challenges.\nHowever\, with the advent of inexpens
 ive renewable electricity\, the electrosynthesis of these chemicals is bec
 oming increasingly attractive. Low temperature electrochemical devices are
  particularly amenable towards coupling with renewables. They require litt
 le infrastructure\; as such\, they could allow for localised chemical prod
 uction at the point-of-consumption.\nIt turns out that the catalyst materi
 al at the electrode\, i.e. the electrocatalyst\, controls the efficiency o
 f electrosynthesis. I will present our research on the electrocatalysis of
  (i) O2 evolution for water electrolysis 1\,2 and (ii) oxygen electroreduc
 tion to hydrogen peroxide\, 3\,4 (iii) N2 reduction to NH3. 5 Our experime
 nts span the atomic scale to real devices.\n1 Roy\, C.\, Rao\, R. R.\, Sto
 erzinger\, K. A.\, Hwang\, J.\, Rossmeisl\, J.\, Chorkendorff\, I.\, Shao-
 Horn\, Y.\n&amp\; Stephens\, I. E. L. ACS Energy Letters\, (2018).\n2 Rao\
 , R. R.\, Kolb\, M. J.\, Giordano\, L.\, Pedersen\, A. F.\, Katayama\, Y.\
 , Hwang\, J.\, Mehta\, A.\, You\,\nH.\, Lunger\, J. R.\, Zhou\, H.\, Halck
 \, N. B.\, Vegge\, T.\, Chorkendorff\, I.\, Stephens\, I. E. L. &amp\; Sha
 o-\nHorn\, Y. Nature Catalysis DOI: 10.1038/s41929-020-0457-6\, (2020).\n3
  Verdaguer-Casadevall\, A.\, Deiana\, D.\, Karamad\, M.\, Siahrostami\, S.
 \, Malacrida\, P.\, Hansen\, T.\nW.\, Rossmeisl\, J.\, Chorkendorff\, I. &
 amp\; Stephens\, I. E. L. Nano Letters 14\, 1603\, (2014).\n4 Yang\, S.\, 
 Verdaguer-Casadevall\, A.\, Arnarson\, L.\, Silvioli\, L.\, Čolić\, V.\,
  Frydendal\, R.\, Rossmeisl\,\nJ.\, Chorkendorff\, I. &amp\; Stephens\, I.
  E. L. ACS Catalysis\, 4064\, (2018).\n5 Andersen\, S. Z.\, Colic\, V.\, Y
 ang\, S.\, Schwalbe\, J. A.\, Nielander\, A. C.\, McEnaney\, J. M.\,\nEnem
 ark-Rasmussen\, K.\, Baker\, J. G.\, Singh\, A. R.\, Rohr\, B. A.\, Statt\
 , M. J.\, Blair\, S. J.\,\nMezzavilla\, S.\, Kibsgaard\, J.\, Vesborg\, P.
  C. K.\, Cargnello\, M.\, Bent\, S. F.\, Jaramillo\, T. F.\,\nStephens\, I
 . E. L.\, Norskov\, J. K. &amp\; Chorkendorff\, I. Nature 570\, 504\, (201
 9).
LOCATION:tba
END:VEVENT
END:VCALENDAR