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BEGIN:VEVENT

CATEGORIES:Engineering
CATEGORIES:Lectures/Conferences
CATEGORIES:Other
CATEGORIES:Utilities
CATEGORIES:Lecture/Talk
CATEGORIES:Panel/Seminar/Colloquium
CATEGORIES:Research
CATEGORIES:Information Session
CATEGORIES:Main
CONTACT;X-BEDEWORK-UID=00f1fcdb-0f068baf-010f-068baf83-00000004:None
CREATED:20260317T190439Z
DESCRIPTION:Abstract:\nElectrocatalysis has the potential to enable sustai
 nable chemical infrastructures via the generation of commodity chemicals 
 such as hydrogen\, hydrocarbons\, and ammonia with renewable energy\, but
  electrochemical devices such as electrolyzers often exhibit inadequate a
 ctivity and stability for these transformations due to poor catalyst perf
 ormance for the oxygen evolution reaction (OER). The Moreno-Hernandez Lab
 oratory specializes in the design of electrocatalysts for next-generation
  energy devices via a multiscale feedback loop that integrates the precis
 e synthesis of nanomaterials\, atomic-scale observations of structural dy
 namics in liquid environments with in situ transmission electron microsco
 py\, and the assessment of electrocatalyst performance under relevant ope
 rating conditions via proton exchange membrane water electrolysis. Insigh
 ts from these activities\, in particular with liquid phase transmission e
 lectron microscopy (LP-TEM)\, has resulted in the direct observation of e
 lectrocatalyst degradation mechanisms and degradation kinetics at the nan
 oscale\, and the observation of collective atomic-scale mechanisms of dis
 solution. Disorder-induced degradation has been found to result in substa
 ntial nanoscale heterogeneity in dissolution properties for rutile-type e
 lectrocatalysts such as RuO2 and IrO2. Insights from these activities has
  resulted in the discovery of oxidized overlayer electrocatalysts with im
 proved noble metal utilization\, the discovery of experimental energy sca
 ling relations that can guide catalyst design for non-iridium electrocata
 lysts\, the direct observation of electrocatalyst degradation mechanisms 
 at the nanoscale\, and the observation of atomic-scale mechanisms of diss
 olution. Our studies highlight the importance of multimodal approaches to
  guide electrocatalyst design and motivate further study of nanoscale and
  chemical effects that can be harnessed to design efficient\, earth-abund
 ant\, and stable electrocatalysts for electrochemical transformations.
DURATION:PT1H
DTSTAMP:20260317T191043Z
DTSTART;TZID=America/New_York:20260415T120000
LAST-MODIFIED:20260317T191043Z
LOCATION;X-BEDEWORK-UID=18832e99-20476e5b-0120-58864347-000000be:Fitzpatri
 ck Center Schiciano Auditorium Side A\, room 1464
STATUS:CONFIRMED
SUMMARY:DMI/MEMS Seminar Presented by Prof. Ivan A. Moreno-Hernandez
UID:CAL-8a003384-9cc4d1fe-019c-fd2f9324-00002a6fdemobedework@mysite.edu
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 ics,/principals/users/agrp_PrattSchool,/principals/users/agrp__ArtsandSci
 ences_TrinityCollege,":Academic Resource Center (ARC)\,Biology\,Biomedica
 l Engineering (BME)\,Cell Biology\,Chemistry\,Civil and Environmental Eng
 ineering (CEE)\,Electrical and Computer Engineering (ECE)\,Mathematics\,M
 echanical Engineering and Materials Science (MEMS)\,Nicholas Institute fo
 r Energy\, Environment and Sustainability\,Physics\,Pratt School of Engin
 eering\,Trinity College
X-BEDEWORK-STUDENT-CONTACT;X-BEDEWORK-PARAM-EMAIL=liana.igescu@duke.edu:Li
 ana Igescu
X-BEDEWORK-DUKE-SERIES:DMI Seminar Series
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X-BEDEWORK-IMAGE-ALT-TEXT:April 15 DMI/MEMS Seminar - Ivan A. Moreno-Herna
 ndez
X-BEDEWORK-SUBMITTEDBY:reb88 for Duke Materials Initiative (agrp_Institute
 s_MaterialsScienceandEngineering)
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END:VEVENT
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