TY - JOUR
T1 - Nanometer Scale Scanning Electrochemical Microscopy Instrumentation
AU - Kim, Jiyeon
AU - Renault, Christophe
AU - Nioradze, Nikoloz
AU - Arroyo-Currás, Netzahualcóyotl
AU - Leonard, Kevin C.
AU - Bard, Allen J.
N1 - Publisher Copyright:
© 2016 American Chemical Society.
PY - 2016/10/18
Y1 - 2016/10/18
N2 - We report the crucial components required to perform scanning electrochemical microscopy (SECM) with nanometer-scale resolution. The construction and modification of the software and hardware instrumentation for nanoscale SECM are explicitly explained including (1) the LabVIEW code that synchronizes the SECM tip movement with the electrochemical response, (2) the construction of an isothermal chamber to stabilize the nanometer scale gap between the tip and substrate, (3) the modification of a commercial bipotentiostat to avoid electrochemical tip damage during SECM experiments, and (4) the construction of an SECM stage to avoid artifacts in SECM images. These findings enabled us to successfully build a nanoscale SECM, which can be utilized to map the electrocatalytic activity of individual nanoparticles in a typical ensemble sample and study the structure/reactivity relationship of single nanostructures.
AB - We report the crucial components required to perform scanning electrochemical microscopy (SECM) with nanometer-scale resolution. The construction and modification of the software and hardware instrumentation for nanoscale SECM are explicitly explained including (1) the LabVIEW code that synchronizes the SECM tip movement with the electrochemical response, (2) the construction of an isothermal chamber to stabilize the nanometer scale gap between the tip and substrate, (3) the modification of a commercial bipotentiostat to avoid electrochemical tip damage during SECM experiments, and (4) the construction of an SECM stage to avoid artifacts in SECM images. These findings enabled us to successfully build a nanoscale SECM, which can be utilized to map the electrocatalytic activity of individual nanoparticles in a typical ensemble sample and study the structure/reactivity relationship of single nanostructures.
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U2 - 10.1021/acs.analchem.6b03024
DO - 10.1021/acs.analchem.6b03024
M3 - Article
AN - SCOPUS:84992077682
SN - 0003-2700
VL - 88
SP - 10284
EP - 10289
JO - Analytical Chemistry
JF - Analytical Chemistry
IS - 20
ER -