Journal
LANGMUIR
Volume 31, Issue 33, Pages 9214-9218Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.langmuir.5b01931
Keywords
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Funding
- Royal Society of Chemistry
- ERC
- Government of the Russian Federation [14.Z50.31.0004]
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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 mu m, and wall thickness can be varied from 2 to 70 mu m, depending upon the electropolymerization conditions.
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