10.1021/acs.langmuir.5b01931.s001
Bogdan Parakhonskiy
Bogdan
Parakhonskiy
Dmitry Shchukin
Dmitry
Shchukin
Polypyrrole Microcontainers: Electrochemical Synthesis
and Characterization
American Chemical Society
2015
electrogenerated hydrogen gas bubbles
characterization
polypyrrole microcontainers
CharacterizationWe
70 μ m
hydrogen microbubble surface
Dependent
gain insight
diameter
polypyrrole shell
Electrochemical Synthesis
template
synthesis
electrochemically
electrochemical biasing
electropolymerization conditions
Polypyrrole Microcontainers
growth kinetics
scanning electron microscopy
wall thickness
redox cycles
electrochemical conditions
scan rate
globule
200 μ m
Experimental results
2015-08-25 00:00:00
Journal contribution
https://acs.figshare.com/articles/journal_contribution/Polypyrrole_Microcontainers_Electrochemical_Synthesis_and_Characterization/2137960
We
present electrochemically controlled synthesis of polypyrrole microcontainers
on electrogenerated hydrogen gas bubbles acting as a template. We
performed structural characterization of the obtained microcontainers
to gain insight into the growth kinetics of the polypyrrole shell.
Experimental results showed that surfactant-mediated polymerization
of pyrrole at the hydrogen microbubble surface under controlled electrochemical
biasing led to the synthesis of various micro/nanostructures. Dependent
upon the electrochemical conditions, such as the number of redox cycles
and scan rate, the containers with spherical globules and bowl-like
structures, which become lantern-like with increasing the number of
cycles, are formed, as revealed by scanning electron microscopy. Their
diameter can range between 40 and 200 μm, and wall thickness
can be varied from 2 to 70 μm, depending upon the electropolymerization
conditions.