Degeneration Behavior of Cu Nanowires under Carbon Dioxide Environment: An In Situ/Operando StudyClick to copy article linkArticle link copied!
- Kun HeKun HeDepartment of Materials Science & Engineering, Northwestern University , Evanston, Illinois 60208, United StatesThe NUANCE Center, Northwestern University , Evanston, Illinois 60208, United StatesCollege of Chemistry and Materials Engineering, Wenzhou University , Wenzhou, Zhejiang 325035, ChinaMore by Kun He
- Kyoungdoc KimKyoungdoc KimGraduate Institute of Ferrous and Energy Materials Technology, Pohang University of Science and Technology , Pohang 37673, Republic of KoreaMore by Kyoungdoc Kim
- Cesar Jared VillaCesar Jared VillaDepartment of Materials Science & Engineering, Northwestern University , Evanston, Illinois 60208, United StatesMore by Cesar Jared Villa
- Stephanie M. RibetStephanie M. RibetDepartment of Materials Science & Engineering, Northwestern University , Evanston, Illinois 60208, United StatesMore by Stephanie M. Ribet
- Paul SmeetsPaul SmeetsDepartment of Materials Science & Engineering, Northwestern University , Evanston, Illinois 60208, United StatesThe NUANCE Center, Northwestern University , Evanston, Illinois 60208, United StatesMore by Paul Smeets
- Roberto dos ReisRoberto dos ReisDepartment of Materials Science & Engineering, Northwestern University , Evanston, Illinois 60208, United StatesThe NUANCE Center, Northwestern University , Evanston, Illinois 60208, United StatesMore by Roberto dos Reis
- Peter W. VoorheesPeter W. VoorheesDepartment of Materials Science & Engineering, Northwestern University , Evanston, Illinois 60208, United StatesMore by Peter W. Voorhees
- Xiaobing Hu*Xiaobing Hu*Email: [email protected]Department of Materials Science & Engineering, Northwestern University , Evanston, Illinois 60208, United StatesThe NUANCE Center, Northwestern University , Evanston, Illinois 60208, United StatesMore by Xiaobing Hu
- Vinayak P. Dravid*Vinayak P. Dravid*Email: [email protected]Department of Materials Science & Engineering, Northwestern University , Evanston, Illinois 60208, United StatesThe NUANCE Center, Northwestern University , Evanston, Illinois 60208, United StatesMore by Vinayak P. Dravid
Abstract
Copper (Cu) is a catalyst broadly used in industry for hydrogenation of carbon dioxide, which has broad implications for environmental sustainability. An accurate understanding of the degeneration behavior of Cu catalysts under operando conditions is critical for uncovering the failure mechanism of catalysts and designing novel ones with optimized performance. Despite the widespread use of these materials, their failure mechanisms are not well understood because conventional characterization techniques lack the necessary time and spatial resolution to capture these complex behaviors. In order to overcome these challenges, we carried out transmission electron microscopy (TEM) with a specialized in situ gas environmental holder, which allows us to unravel the dynamic behavior of the Cu nanowires (NWs) in operando. The failure process of these nanoscale Cu catalysts under CO2 atmosphere were tracked and further rationalized based on our numerical modeling using phase-field methods.
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