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@ARTICLE{Komsiyska:128631,
author = {Komsiyska, L. and Staikov, G.},
title = {{E}lectrocrystallization of {A}u nanoparticles on glassy
carbon from {HC}l{O}$_{4}$ solution containing
[{A}u{C}l$_{4}$]−},
journal = {Electrochimica acta},
volume = {54},
number = {2},
issn = {0013-4686},
address = {New York, NY [u.a.]},
publisher = {Elsevier},
reportid = {FZJ-2013-00365},
pages = {168 - 172},
year = {2008},
abstract = {The mechanism and kinetics of electrocrystallization of Au
nanoparticles on glassy carbon (GC) were investigated in the
system GC/1 mM KAuCl4 + 0.1 M HClO4. Experimental results
show that the gold electrodeposition follows the so-called
Volmer–Weber growth mechanism involving formation and
growth of 3D Au nanoparticles on an unmodified GC substrate.
The analysis of current transients shows that at relatively
positive electrode potentials (E ≥ 0.84 V) the deposition
kinetics corresponds to the theoretical model for
progressive nucleation and diffusion-controlled 3D growth of
Au nanoparticles. The potential dependence of the nucleation
rate extracted from the current transients is in agreement
with the atomistic theory of nucleation. At sufficiently
negative electrode potentials (E ≤ 0.64 V) the nucleation
frequency becomes very high and the nucleation occurs
instantaneously. Based on this behaviour is applied a
potentiostatic double-pulse routine, which allows controlled
electrodeposition of Au nanoparticles with a relatively
narrow size distribution.},
cin = {PGI-3 / JARA-FIT},
ddc = {540},
cid = {I:(DE-Juel1)PGI-3-20110106 / $I:(DE-82)080009_20140620$},
pnm = {142 - Controlling Spin-Based Phenomena (POF3-142)},
pid = {G:(DE-HGF)POF3-142},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000263282400003},
doi = {10.1016/j.electacta.2008.08.013},
url = {https://juser.fz-juelich.de/record/128631},
}