# FS-NL

 2017-04-0313:33 [PUBDB-2017-01522] Book/Report/Dissertation / PhD Thesis Stierle, A. Operando X-ray Investigation of Solid Oxide Fuel Cell Model Electrodes [DESY-THESIS-2017-011] DESY-THESIS 120 pp., (2017) [10.3204/PUBDB-2017-01522]   A detailed study of three solid oxide fuel cells (SOFCs) related model systems is presented in this work with the aim of the better understanding of the structural changes in cell components associated with their operation. The first model system is an La$_{0.6}$Sr$_{0.4}$CoO$_{3−δ}$ (LSC) on yttria-stabilized zirconia (YSZ). [...] OpenAccess: SVolkov_thesis - PDF; desy-thesis-17-011.title - PDF; 2017-03-1410:16 [PUBDB-2017-01369] Book/Report/Dissertation / PhD Thesis Stierle, A. Atomic structure of graphene supported heterogeneous model catalysts [DESY-THESIS-2016-010] DESY-THESIS 266 pp., (2017) [10.3204/PUBDB-2017-01369]   Graphene on Ir(111) forms a moire structure with well defined nucleation centres. Therefore it can be utilized to create hexagonal metal cluster lattices with outstanding structural quality. [...] OpenAccess: DissDirkFranz - PDF; desy-thesis-17-010.title - PDF; 2017-01-1008:28 [PUBDB-2017-00380] Journal Article et al Solid–Liquid Interface Structure of Muscovite Mica in CsCl and RbBr Solutions Langmuir 32(49), 12955 - 12965 (2016) [10.1021/acs.langmuir.6b02121]   The solid−liquid interface formed by single terminated muscovite mica in contact with two different ionic solutions is analyzed using surface X-ray diffraction. Specular and nonspecular crystal truncation rods of freshly cleaved mica immersed in CsCl or RbBr aqueous solution were measured. [...] Restricted: PDF; 2016-11-2513:05 [PUBDB-2016-05643] Journal Article et al Stability and Reactivity of Graphene-Templated Nanoclusters The journal of physical chemistry / C 120(46), 26290 - 26299 (2016) [10.1021/acs.jpcc.6b07828]   Exploiting the versatility of the graphene/Ir(111) template, we performed a comparative study on arrays of various metallic nanoclusters. Using scanning tunneling microscopy and synchrotron-based high-resolution X-ray photoelectron spectroscopy, we investigated the size dependent stability of Pt, Ir, and Au nanoclusters against sintering upon gas exposure. [...] Restricted: PDF PDF (PDFA); 2016-11-1410:27 [PUBDB-2016-05109] Journal Article et al Organically linked iron oxide nanoparticle supercrystals with exceptional isotropic mechanical properties Nature materials 15(5), 522 - 528 (2016) [10.1038/nmat4553]   It is commonly accepted that the combination of the anisotropic shape and nanoscale dimensions of the mineral constituents of natural biological composites underlies their superior mechanical properties when compared to those of their rather weak mineral and organic constituents1. Here, we show that the self-assembly of nearly spherical iron oxide nanoparticles in supercrystals linked together by a thermally induced crosslinking reaction of oleic acid molecules leads to a nanocomposite with exceptional bending modulus of 114 GPa, hardness of up to 4 GPa and strength of up to 630 MPa. [...] Restricted: PDF PDF (PDFA); 2016-11-1410:22 [PUBDB-2016-05108] Journal Article et al Tracking the shape-dependent sintering of platinum–rhodium model catalysts under operando conditions Nature Communications 7, 10964 (2016) [10.1038/ncomms10964]   Nanoparticle sintering during catalytic reactions is a major cause for catalyst deactivation. Understanding its atomic-scale processes and finding strategies to reduce it is of paramount scientific and economic interest. [...] OpenAccess: PDF PDF (PDFA); 2016-11-1410:19 [PUBDB-2016-05107] Journal Article et al Operando X-ray Investigation of Electrode/Electrolyte Interfaces in Model Solid Oxide Fuel Cells Chemistry of materials 28(11), 3727 - 3733 (2016) [10.1021/acs.chemmater.6b00351]   We employed operando anomalous surface X-ray diffraction to investigate the buried interface between the cathode and the electrolyte of a model solid oxide fuel cell with atomic resolution. The cell was studied under different oxygen pressures at elevated temperatures and polarizations by external potential control. [...] OpenAccess: PDF PDF (PDFA); 2016-11-1410:15 [PUBDB-2016-05106] Journal Article et al Preparation of a smooth GaN–Gallium solid–liquid interface Journal of crystal growth 448, 70 - 75 (2016) [10.1016/j.jcrysgro.2016.05.007]   We discuss the preparation of an atomically flat solid–liquid interface between solid gallium nitride and liquid gallium using in situ surface X-ray diffraction to probe the interface roughness. For the creation of this interface it is necessary to start the experiment with liquid gallium which first etches into the solid at a temperature of 823 K in a nitrogen free ambient. [...] Published on 2016-05-10. Available in OpenAccess from 2017-05-10.: PDF PDF (PDFA); 2016-11-1410:06 [PUBDB-2016-05105] Journal Article et al Nanosecond laser pulse heating of a platinum surface studied by pump-probe X-ray diffraction Applied physics letters 109(4), 043107 (2016) [10.1063/1.4959252]   We report on the quantitative determination of the transient surface temperature of Pt(110) upon nanosecond laser pulse heating. We find excellent agreement between heat transport theory and the experimentally determined transient surface temperature as obtained from time-resolved X-ray diffraction on timescales from hundred nanoseconds to milliseconds. [...] OpenAccess: PDF PDF (PDFA); 2016-11-1409:58 [PUBDB-2016-05104] Journal Article et al DESY NanoLab   The DESY NanoLab is a facility providing access to nano-characterization, nano-structuringand nano-synthesis techniques which are complementary to the advanced X-ray techniques availableat DESY’s light sources. It comprises state-of-the art scanning probe microscopy and focused ion beammanufacturing, as well as surface sensitive spectroscopy techniques for chemical analysis. [...] OpenAccess: PDF PDF (PDFA);