Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Stefanie Schwamborn"'
Publikováno v:
ChemPhysChem. 12:1741-1746
PtAg bimetallic nanoparticles for oxygen reduction reaction (ORR) in alkaline media were prepared by pulse electrodeposition (PED). During PED the reduction of Ag(+) ions predominates, thus an increased Ag content in the co-deposit is accomplished. T
Autor:
Stefanie Schwamborn, Christian Kulp, Xingxing Chen, Wolfgang Schuhmann, Christoph Somsen, Michael Bron, Andrea Puschhof
Publikováno v:
ChemPhysChem. 11:2854-2861
A novel electrochemical method to prepare platinum shells around carbon-supported metal nanoparticles (Ru and Au) by pulsed electrodeposition from solutions containing Pt ions is presented. Shell formation is confirmed by characteristic changes in th
Autor:
Shankhamala Kundu, Leonard Stoica, Wolfgang Schuhmann, Stefanie Schwamborn, Wei Xia, Xingxing Chen, Martin Muhler
Publikováno v:
ChemPhysChem. 11:74-78
Autor:
Lorenz Kienle, Mykola Polyakov, Martha Poisot, Stefanie Schwamborn, Aliaksei Mazheika, Wolfgang Bensch, Martin Muhler, Sylvio Indris, Wolfgang Grünert
Publikováno v:
Journal of Catalysis. 260:236-244
High-energy ball milling has been employed to convert a microcrystalline, stoichiometric (S/Mo = 2), catalytically completely inactive MoS 2 (prepared by high-temperature decomposition of ammonium tetrathiomolybdate, ATM) into an active catalyst, the
Publikováno v:
Electroanalysis.
We report on the probing of the Pt surface for oxygen reduction reaction (ORR) by insertion of Ag. Therefore, PtAg bimetallic nanoparticles were prepared by pulse electrodeposition. In a second step, Ag was electro-dissolved in acidic media from the
Autor:
Michael Bron, Wolfgang Schuhmann, Tharamani Chikka Nagaiah, Stefanie Schwamborn, Artjom Maljusch
Publikováno v:
Analytical chemistry. 82(5)
Pt-Ag nanoparticles were prepared on a glassy carbon (GC) surface by pulsed electrodeposition and tested using cyclic voltammetry and scanning electrochemical microscopy (SECM) with respect to their possible use as catalyst material for oxygen reduct
Autor:
Wolfgang Schuhmann, Torsten Reda, Stefanie Schwamborn, Leonard Stoica, Sebastian Neugebauer, Hanns-Ludwig Schmidt
Publikováno v:
Chemphyschem : a European journal of chemical physics and physical chemistry. 10(7)
Local reduction of the terminating nitro groups of a p-nitro-thiophenol self-assembled monolayer (SAM) under formation of either hydroxylamine or amino groups is invoked using the direct mode of scanning electrochemical microscopy (SECM). By choosing
Publikováno v:
ECS Meeting Abstracts. :260-260
not Available.
Autor:
Chen Jin, Martin Muhler, Wolfgang Schuhmann, Wei Xia, Wenzhi Jia, Leonard Stoica, Stefanie Schwamborn
Publikováno v:
Physical Chemistry Chemical Physics. 12:10088
Adsorption of horseradish peroxidase (HRP) on graphite rod electrodes sequentially modified with carbon microfibers (CMF) carrying carbon nanotubes in a hierarchically structured arrangement and finally pyrene hexanoic acid (PHA) for improving hydrop
Autor:
Leonard Stoica, Wolfgang Schuhmann, Sebastian Neugebauer, Torsten Reda, Hanns-Ludwig Schmidt, Stefanie Schwamborn
Publikováno v:
ChemPhysChem. 10:989-989
The cover picture illustrates the principle of molecular writing using direct-mode scanning electrochemical microscopy (SECM). The redox state of the end groups of a p-nitrothiophenol self-assembled monolayer (SAM) is selectively reduced either to th