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BEGIN:VEVENT

CATEGORIES:Natural Sciences
CATEGORIES:Lectures/Conferences
CATEGORIES:Utilities
CATEGORIES:Lecture/Talk
CATEGORIES:Main
CONTACT;X-BEDEWORK-UID=00f1fcdb-0f068baf-010f-068baf83-00000004:None
CREATED:20230828T003217Z
DESCRIPTION:The Department of Chemistry is excited to host William Mustain
  (USC)\n\nUnderstanding how Component Chemistry and Structure Impact Anio
 n Exchange Membrane Electrolyzer Performance and Durabilty \n\nWater elec
 trolysis to produce hydrogen is gaining significant attention due to a si
 gnificant decrease in the cost of renewable energy sources such as solar\
 , wind\, tidal etc. Among the existing water electrolysis technologies\, 
 anion exchange membrane water electrolysis has recently emerged due to it
 s potential advantages over proton exchange membrane electrolysis and tra
 ditional alkaline electrolysis.  Anion exchange membrane electrolyzers (A
 EMELs) can allow for the use of PGM-free electrocatalysts and low-cost co
 mponent materials due to its less corrosive alkaline environment while al
 so enabling electrochemical H2 compression. \nIn an operating AEMEL\, the
  anode electrode - where the oxygen evolution reaction (OER) occurs - con
 trols a majority of the cell's behavior.  That electrode is comprised of 
 three main components: catalyst\, ionomer/binder and porous transport lay
 er (PTL).  Recent work has shown that under certain operating schemes tha
 t each of these components can dominate the anode response\, meaning that
  the careful design of each component is critical to ensure that the elec
 trolyzer can operate reliably over a wide range of operating conditions. 
  \nThis presentation will take the audience through a series of systemati
 c studies that ends with a long-life and high performing AEMELs. Specific
 ally\, the variables to be discussed are: i) controlling the ion-exchange
  capacity (IEC) and cross-linker content of the ionomers\; ii) ionomer ph
 ysical structure\; iii) catalyst chemistry and loading\; iv) PTL density 
 and thickness\; and v) modification of the catalyst layer with ionomer ov
 erlayers. The balance and sometimes compromise between performance and du
 rability will also be discussed. By the end of the presentation\, electro
 des and cells will be demonstrated that were integrated into AEMELs and a
 re able to show very low voltage operation on both deionized water and 0.
 3 M KOH as well as stable longer-term operation.  But\, most importantly\
 , this project has resulted in two families of materials (polymers and PT
 Ls) that are now available commercially.  \n\n\nTo learn more about the M
 ustain lab's work\, please visit their research page: https://www.mustain
 lab.com/\n\nHosted by Ben Wiley
DURATION:PT1H
DTSTAMP:20240109T192741Z
DTSTART;TZID=America/New_York:20240220T114500
LAST-MODIFIED:20240109T192741Z
LOCATION;X-BEDEWORK-UID=18832edc-1b27e154-011b-28282e22-00000037:French Fa
 mily Science Center 2237
STATUS:CONFIRMED
SUMMARY:Chemistry Seminar Presented by Prof. William Mustain
UID:CAL-8a02906b-8a0a73d8-018a-398e4038-00007225demobedework@mysite.edu
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Main:/user/public-user/Utili
 ties/Main
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Lecture_Talk:/user/public-us
 er/Lectures_Conferences/Lecture_Talk
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Natural Sciences:/user/publi
 c-user/Topics/Natural Sciences
X-BEDEWORK-STUDENT-CONTACT;X-BEDEWORK-PARAM-EMAIL=chem-office@duke.edu:Che
 m Admin Office
X-BEDEWORK-SPEAKER:William Mustain University of Southern California
X-BEDEWORK-IMAGE-X1:0
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X-BEDEWORK-IMAGE-ALT-TEXT:William Mustain
X-BEDEWORK-SUBMITTEDBY:lao26 for Chemistry (agrp_ArtsandSciences_Chemistry
 )
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END:VEVENT
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