Operando Nanoscale Imaging of Electrochemically Induced Strain in a Locally Polarized Pt Grain

Autor: Dina Sheyfer, Ruperto G. Mariano, Tomoya Kawaguchi, Wonsuk Cha, Ross J. Harder, Matthew W. Kanan, Stephan O. Hruszkewycz, Hoydoo You, Matthew J. Highland

Publikováno v: Nano Letters. 23:1-7

Developing new methods that reveal the structure of electrode materials under polarization is key to constructing robust structure-property relationships. However, many existing methods lack the spatial resolution in structural changes and fidelity t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::01be54ee66953ecd265db9dd6148bb02
https://doi.org/10.1021/acs.nanolett.2c01015

Sub-pixel high-resolution imaging of high-energy x-rays inspired by sub-wavelength optical imaging

Autor: Matthew J. Highland, J. Weizeorick, N. Bertaux, Jonathan Almer, Marc Allain, Siddharth Maddali, Sarvjit Shastri, Stephan O. Hruszkewycz, Peter Kenesei, Jun-Sang Park

Publikováno v: Optics Express
Optics Express, Optical Society of America-OSA Publishing, 2021, 29 (22), pp.35003. ⟨10.1364/OE.438945⟩
Optics Express, 2021, 29 (22), pp.35003. ⟨10.1364/OE.438945⟩

We have developed and demonstrated an image super-resolution method—XR-UNLOC: X-Ray UNsupervised particle LOCalization—for hard x-rays measured with fast-frame-rate detectors that is an adaptation of the principle of photo-activated localization

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6bb1f5e007b68117e0510f6c863f836
https://hal.archives-ouvertes.fr/hal-03457026

Crystal Truncation Rods from Miscut Surfaces with Alternating Terminations

Autor: Matthew J. Highland, Weronika Walkosz, Dongwei Xu, Peter Zapol, G. Brian Stephenson, Jeffrey A. Eastman, Carol Thompson, Guangxu Ju

Miscut surfaces of layered crystals can exhibit a stair-like sequence of terraces having periodic variation in their atomic structure. For hexagonal close-packed and related crystal structures with an {\alpha}{\beta}{\alpha}{\beta} stacking sequence,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d51036ba41d0d82a41aa875db2e7128b
http://arxiv.org/abs/2010.06166

Burton-Cabrera-Frank theory for surfaces with alternating step types

Autor: Guangxu Ju, Dongwei Xu, Carol Thompson, Matthew J. Highland, Jeffrey A. Eastman, Weronika Walkosz, Peter Zapol, G. Brian Stephenson

Burton-Cabrera-Frank (BCF) theory has proven to be a versatile framework to relate surface morphology and dynamics during crystal growth to the underlying mechanisms of adatom diffusion and attachment at steps. For an important class of crystal surfa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b2f58b674202117bd388c2e444bc21ec

Stability Limits and Defect Dynamics in Ag Nanoparticles Probed by Bragg Coherent Diffractive Imaging

Autor: Yuzi Liu, G. B. Stephenson, Nenad M. Markovic, Ross Harder, J. Maser, Stephan O. Hruszkewycz, Evan Maxey, Hoydoo You, P. P. Lopes, Wonsuk Cha, Matthew J. Highland, Andrew Ulvestad

Publikováno v: Nano Letters. 17:1595-1601

Dissolution is critical to nanomaterial stability, especially for partially dealloyed nanoparticle catalysts. Unfortunately, highly active catalysts are often not stable in their reactive environments, preventing widespread application. Thus, focusin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ff53be95a9980854f627574c8f9e4ec
https://doi.org/10.1021/acs.nanolett.6b04760