37 citations · 112 across the 5 of their papers we have counts for
6 papers
High-Resolution X-ray Spectro-Microscopy of Au Microcrystallites
Chaitali Sow, Martin Seyrich, Johannes Hagemann +4
Understanding the functionalities of heterogeneous catalysts requires high-resolution nanoscale chemical imaging tools. X-ray spectro-ptychography offers this capability by enablin…
How nanoporous silicon-polypyrrole hybrids flex their muscles in aqueous electrolytes: In operando high-resolution x-ray diffraction and electron tomography-based micromechanical computer simulations
Manuel Brinker, Marc Thelen, Manfred May +7
Macroscopic strain experiments revealed that Si crystals traversed by parallel, channel-like nanopores functionalized with the muscle polymer polypyrrole exhibit large and reversib…
Single Alloy Nanoparticle X-Ray Imaging during a Catalytic Reaction
Young Yong Kim, Thomas F. Keller, Tiago J. Goncalves +8
The imaging of active nanoparticles represents a milestone in decoding heterogeneous catalysts dynamics. We report the facet resolved, surface strain state of a single PtRh alloy n…
Silicon Flexes Muscles: Giant Electrochemical Actuation in a Nanoporous Silicon-Polypyrrole Hybrid Material
Manuel Brinker, Guido Dittrich, Claudia Richert +5
The absence of piezoelectricity in silicon makes direct electro-mechanical applications of this mainstream semiconductor impossible. Integrated electrical control of the silicon me…
On the quest of low temperature nitrogen infusion relevant for superconducting Nb based radio-frequency cavities
G. D. L. Semione, A. D. Pandey, S. Tober +9
A detailed study of the near-surface structure and composition of Nb, the material of choice for Superconducting Radio Frequency accelerator (SRF) cavities, is of great importance…
Gas-induced segregation in Pt-Rh alloy nanoparticles observed by in-situ Bragg coherent diffraction imaging
Tomoya Kawaguchi, Thomas F. Keller, Henning Runge +11
Bimetallic catalysts can undergo segregation or redistribution of the metals driven by oxidizing and reducing environments. Bragg coherent diffraction imaging (BCDI) was used to re…