Index Catalog // Arch : Northwestern University Institutional Repository

Description:: This thesis focuses on identifying structure-property-performance relationships in supported nanoparticle catalysts, where an active catalyst material is supported on a high surface area substrate. Identifying these relationships in supported nanoparticle catalysts can be quite challenging, as the complex structure of these catalysts results in numerous potential sources for changes to...
Keyword:: Surfaces, Catalysis, Nanoparticles, Interfaces, Density Functional Theory, and Electron Microscopy
Subject:: Materials Science and Chemical engineering
Creator:: Mansley, Zachary Ryan
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 02/02/2022
Date Created:: 2021-01-01
Resource Type:: Dissertation
Alternate Identifier:: http://dissertations.umi.com/northwestern:15855 and etdadmin_upload_862543

Description:: Thermoelectric (TE) materials has been drawn broad attention given that it can enable direct conversion between thermal and electrical energies, hence is treated as a vital candidate for clean power generation as well as waste heat recycling. However, the energy conversion efficiency of TE devices used nowadays is still very...
Keyword:: Nanostructure, Lead Chalcogenide, Thermoelectric, and Electron Microscopy
Subject:: Materials Science
Creator:: Cai, Songting
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 10/06/2021
Date Created:: 2021-01-01
Resource Type:: Dissertation
Alternate Identifier:: etdadmin_upload_829997 and http://dissertations.umi.com/northwestern:15626

Description:: Thermoelectric materials are of particular interest in a variety of fields because of their ability to directly convert heat to electricity (and vice versa), however, they struggle to gain widespread adoption because of their low efficiency. A common strategy in the field of thermoelectricity is to introduce material defects into...
Keyword:: Mesoscale, Doping, Thermoelectric, EBSD, Electron Microscopy, and Semiconductor
Subject:: Materials Science and Energy
Creator:: Grovogui, Jann Albert
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 02/01/2021
Date Created:: 2020-01-01
Resource Type:: Dissertation
Alternate Identifier:: http://dissertations.umi.com/northwestern:15371 and etdadmin_upload_779059

Description:: Connecting structure and function in nanoscale engineered materials and devices relies on the analysis of the fundamental arrangement of matter, frequently under dynamic conditions. The demand to image structures at fundamental length scales has touched inorganic materials, biology, and frequently hybrid hard/soft materials with unique phenomena driven by heterogeneous components....
Keyword:: Imaging, Materials Imaging, Soft Materials, Crystallography, Machine Learning, and Electron Microscopy
Subject:: Nanoscience, Materials Science, and Computer science
Creator:: Hujsak, Karl
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 02/12/2020
Date Created:: 2018-01-01
Resource Type:: Dissertation
Alternate Identifier:: http://dissertations.umi.com/northwestern:14515 and etdadmin_upload_638887

Description:: The assembly of nanoscale building blocks into larger ensembles with well-defined architecture has the potential to create entirely new classes of designer photonic and plasmonic metamaterials with unique properties not found in nature. Electromagnetic metasurfaces, or 2D metamaterials, operating at optical wavelengths are of particular interest due to ease of...
Keyword:: Nanotechnology, Nanoparticles, Nanopatterning, Directed Assembly, Self-Assembly, and Electron Microscopy
Subject:: Materials Science and Engineering
Creator:: BENJAMIN MYERS
Owner:: Scholarly Digital Publishing
Date Uploaded:: 10/08/2019
Date Modified:: 10/08/2019
Date Created:: 2018-01-01
Resource Type:: Dissertation

Description:: Metal and bimetallic nanoparticles are of interest and are widely used in various applications because of their unique optical, electronic, and catalytic properties, which differ from those of their bulk counterparts. Better understanding of the thermodynamic and kinetic properties of nanoparticles and their underlying growth mechanisms can serve as a...
Keyword:: Nanotechnology, Electron Microscopy, and Materials Chemistry
Subject:: Materials Science and Engineering
Creator:: Lingxuan Peng
Owner:: Scholarly Digital Publishing
Date Uploaded:: 03/28/2018
Date Modified:: 03/28/2018
Date Created:: 2017-01-01
Resource Type:: Dissertation

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