Constant-distance mode SECM as a tool to visualize local electrocatalytic activity of oxygen reduction catalysts

• Michaela Nebel,
• Thomas Erichsen and
• Wolfgang Schuhmann

Beilstein J. Nanotechnol. 2014, 5, 141–151, doi:10.3762/bjnano.5.14

• high-resolution SECM experiments to powder-based catalyst preparations. Keywords: electrocatalysis; oxygen reduction; recessed microelectrodes; redox-competition SECM; SECM; scanning electrochemical microscopy; shearforce-based constant-distance mode; Introduction In scanning electrochemical

• the free Au bottom was detected at an applied sample potential of -300 mV. 4D constant-distance mode RC-SECM (4D SF/CD-RC-SECM) The redox competition mode of scanning electrochemical microscopy (RC-SECM) is a specially designed SECM detection mode for the investigation of oxygen reduction catalysts

• Michaela Nebel Thomas Erichsen Wolfgang Schuhmann Lehrstuhl für Analytische Chemie; Ruhr-Universität Bochum, D-44780 Bochum Sensolytics GmbH, Universitätsstr 142, D-44799 Bochum 10.3762/bjnano.5.14 Abstract Multidimensional shearforce-based constant-distance mode scanning electrochemical

Ultramicrosensors based on transition metal hexacyanoferrates for scanning electrochemical microscopy

• Maria A. Komkova,
• Angelika Holzinger,
• Andreas Hartmann,
• Alexei R. Khokhlov,
• Christine Kranz,
• Arkady A. Karyakin and
• Oleg G. Voronin

Beilstein J. Nanotechnol. 2013, 4, 649–654, doi:10.3762/bjnano.4.72

• as sensors in scanning electrochemical microscopy (SECM) experiments for imaging of hydrogen peroxide evolution. Keywords: energy related; hydrogen peroxide; nanomaterials; nickel hexacyanoferrate; Prussian Blue; scanning electrochemical microscopy; ultramicroelectrodes; Introduction The detection