Zobrazeno 1 - 10
of 74
pro vyhledávání: '"Arne, Wittstock"'
Autor:
Christoph Mahr, Jorge Adrian Tapia Burgos, Marco Schowalter, Arne Wittstock, Andreas Rosenauer
Publikováno v:
Materials Research Letters, Vol 10, Iss 12, Pp 824-831 (2022)
Nanoporous gold as obtained by corrosion of alloys of gold and a less noble metal is a system with manifold applications. The process of dealloying, however, can result in partially porous samples, when dealloying conditions are not optimized with re
Externí odkaz:
https://doaj.org/article/15e739e7f611495faf70843465ae75cc
Nanoporous Gold: From Structure Evolution to Functional Properties in Catalysis and Electrochemistry
Autor:
Gunther Wittstock, Marcus Bäumer, Wilke Dononelli, Thorsten Klüner, Lukas Lührs, Christoph Mahr, Lyudmila V. Moskaleva, Mehtap Oezaslan, Thomas Risse, Andreas Rosenauer, Anne Staubitz, Jörg Weissmüller, Arne Wittstock
Publikováno v:
Chemical Reviews. 123:6716-6792
Nanoporous gold (NPG) is characterized by a bicontinuous network of nanometer-sized metallic struts and interconnected pores formed spontaneously by oxidative dissolution of the less noble element from gold alloys. The resulting material exhibits dec
Autor:
Christoph Mahr, Knut Müller-Caspary, Matthias Graf, Anastasia Lackmann, Tim Grieb, Marco Schowalter, Florian F. Krause, Thorsten Mehrtens, Arne Wittstock, Jörg Weissmüller, Andreas Rosenauer
Publikováno v:
Materials Research Letters, Vol 6, Iss 1, Pp 84-92 (2018)
Reversible macroscopic length changes in nanoporous structures can be achieved by applying electric potentials or by exposing them to different gases or liquids. Thus, these materials are interesting candidates for applications as sensors or actuator
Externí odkaz:
https://doaj.org/article/40ec3464803d4799ab4b7876fdf2a9a3
Autor:
Hans Hannes Doebler, Jorge Adrian Tapia Burgos, Arne Wittstock, David Steinebrunner, Günter Schnurpfeil, Dieter Wöhrle
Publikováno v:
Photochemical & Photobiological Sciences. 20:547-558
Nanoporous gold was functionalized with a photosensitizer, a zinc(II) phthalocyanine derivative. Such systems are active for the generation of reactive singlet oxygen which can be used for photocatalytic oxidation reactions. This study aims to demons
Autor:
Ali Alipour Najmi, Elchin Jafariyeh‐Yazdi, Mojgan Hadian, Jos Hermans, Rainer Bischoff, Jun Yue, Alexander Dömling, Arne Wittstock, Hjalmar P. Permentier
Publikováno v:
ChemMedChem, 17(11):e202200040. WILEY-V C H VERLAG GMBH
A novel method for the selective catalytic N-dealkylation of drug molecules on a nanoporous gold (NPG) catalyst producing valuable N-dealkylated metabolites and intermediates is described. Drug metabolites are important chemical entities at every sta
Autor:
Thomas L. Sheppard, Martin Seyrich, Dennis Brueckner, Thomas F. Keller, Yakub Fam, Xiaogang Yang, Christian G. Schroer, Dennis Scherhaufer, Jan-Dierk Grunwaldt, Andreas Schropp, Satishkumar Kulkarni, Felix Wittwer, Maik Kahnt, Heinz Lambach, Johannes Becher, Arne Wittstock, Andreas Stierle
Publikováno v:
Journal of Synchrotron Radiation
Journal of synchrotron radiation, 26 (5), 1769–1781
Journal of synchrotron radiation 26(5), 1769-1781 (2019). doi:10.1107/S160057751900660X
Journal of synchrotron radiation, 26 (5), 1769–1781
Journal of synchrotron radiation 26(5), 1769-1781 (2019). doi:10.1107/S160057751900660X
Journal of synchrotron radiation 26(5), 1769 - 1781 (2019). doi:10.1107/S160057751900660X
Two in situ `nanoreactors' for high-resolution imaging of catalysts have been designed and applied at the hard X-ray nanoprobe endstation at beamline P06 o
Two in situ `nanoreactors' for high-resolution imaging of catalysts have been designed and applied at the hard X-ray nanoprobe endstation at beamline P06 o
Autor:
David, Steinebrunner, Günter, Schnurpfeil, Jan, Thayssen, Jorge Adrian, Tapia Burgos, Andre, Wichmann, Dieter, Wöhrle, Arne, Wittstock
Publikováno v:
RSC advances. 11(19)
A series of different singlet oxygen photosensitizers was immobilized onto nanoporous gold powder with a mean pore size of 40 nm
Autor:
Andreas Rosenauer, Marcus Bäumer, Christoph Mahr, Jorge Adrian Tapia Burgos, Arne Wittstock, Alex Ricardo Silva Olaya, Lars Robben, Marco Schowalter, Gunther Wittstock
Publikováno v:
SSRN Electronic Journal.
Nanoporous gold (npAu) fabricated from a AuCu alloy is a complex procedure mostly because of the passivated outer surface and the inhibited corrosion phenomena observed in those materials as a consequence of the formation of a Pm¯3m (AuCu3). To furt
Autor:
Christoph Mahr, Arne Wittstock, M. Mangir Murshed, Thorsten M. Gesing, Marcus Bäumer, Andreas Rosenauer, Junjie Shi
Publikováno v:
Physical Chemistry Chemical Physics. 21:3278-3286
Dealloyed nanoporous metals hold great promise in the field of heterogeneous catalysis; however their tendency to coarsen at elevated temperatures or under catalytic reaction conditions sometimes limit further applications. Here, we report on a highl
Autor:
David, Steinebrunner, Günter, Schnurpfeil, Mathis, Kohröde, Alexander, Epp, Khaetthariya, Klangnog, Jorge Adrian, Tapia Burgos, Andre, Wichmann, Dieter, Wöhrle, Arne, Wittstock
Publikováno v:
RSC advances. 10(39)
Nanoporous gold powder was functionalized in a two-step approach by an azide terminated alkanethiol self-assembled monolayer (SAM) and a zinc(ii) phthalocyanine (ZnPc) derivative by copper catalyzed azide-alkyne cycloaddition (CuAAC). A series of dif