Synthesis, Characterization, and Electrochemistry of Nanotubular Polypyrrole and Polypyrrole-Derived Carbon Nanotubes
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2014
Authors
Ciric-Marjanovic, GordanaMentus, Slavko

Pasti, Igor

Gavrilov, Nemanja

Krstić, Jugoslav

Travas-Sejdic, Jadranka
Strover, Lisa T.
Kopecka, Jitka
Moravkova, Zuzana

Trchova, Miroslava
Stejskal, Jaroslav

Article (Published version)

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Polypyrrole nanotubes (PPy-NTs) were prepared by the oxidation of pyrrole with iron(III) chloride in the presence of a structure-guiding agent, methyl orange. Upon carbonization of the salt form of PPy-NTs, the conducting nitrogen-containing nanotubular carbonaceous material (C-PPy-NT) was obtained. The morphology, structure, and physicochemical properties of PPy-NTs in salt and base form as well as C-PPy-NTs were investigated by transmission electron microscopy, Fourier transform infrared and Raman spectroscopies, conductivity measurements, elemental microanalysis, inductively coupled plasma optical emission spectroscopy, X-ray photoelectron spectroscopy, and nitrogen physisorption. Results of the material characterization were linked to their electrochemical behavior. Specific capacitance of around 120 F g(-1) at low potential sweep rate of 5 mV s(-1) was observed for original PPy-NTs. However, when the potential sweep rate was increased to 100 mV s(-1), PPy-NT salt retained the valu...e of specific capacitance, while the capacitance of PPy-NT base decreased by 70%. Upon carbonization of PPy-NT salt, the specific capacitance was doubled and capacitance fade measured in the interval 5-100 mV s(-1) was determined to be around 45%. It is proposed that the absolute value of specific capacitance is determined by specific surface area and surface functional groups, while the capacitance fade is determined by the conductivity of the electrode material. In this manner, a linear relationship between the percent of capacitance fade and the logarithm of the conductivity was revealed. C-PPy-NTs were also tested as an electrocatalyst for the oxygen reduction reaction (ORR) in alkaline media. High ORR activity was observed, characterized by the onset potential of -0.1 V versus saturated calomel electrode and the apparent number of electrons consumed per oxygen molecule higher than 3. Appreciable ORR activity can be linked with a high fraction of mesopores and the presence of surface functional groups, especially pyridinic and pyrrolic nitrogens, and also with a high degree of structural disorder.
Source:
Journal of Physical Chemistry C, 2014, 118, 27, 14770-14784Publisher:
- American Chemical Society (ACS)
Funding / projects:
- Electroconducting and redox-active polymers and oligomers: synthesis, structure, properties and applications (RS-172043)
- Lithium-ion batteries and fuel cells - research and development (RS-45014)
- Czech Science Foundation - P205/12/0911
- Czech Science Foundation - 13-00270S
- Czech Science Foundation - 14-10279S
DOI: 10.1021/jp502862d
ISSN: 1932-7447
WoS: 000338980400007
Scopus: 2-s2.0-84904358980
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IHTMTY - JOUR AU - Ciric-Marjanovic, Gordana AU - Mentus, Slavko AU - Pasti, Igor AU - Gavrilov, Nemanja AU - Krstić, Jugoslav AU - Travas-Sejdic, Jadranka AU - Strover, Lisa T. AU - Kopecka, Jitka AU - Moravkova, Zuzana AU - Trchova, Miroslava AU - Stejskal, Jaroslav PY - 2014 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/1594 AB - Polypyrrole nanotubes (PPy-NTs) were prepared by the oxidation of pyrrole with iron(III) chloride in the presence of a structure-guiding agent, methyl orange. Upon carbonization of the salt form of PPy-NTs, the conducting nitrogen-containing nanotubular carbonaceous material (C-PPy-NT) was obtained. The morphology, structure, and physicochemical properties of PPy-NTs in salt and base form as well as C-PPy-NTs were investigated by transmission electron microscopy, Fourier transform infrared and Raman spectroscopies, conductivity measurements, elemental microanalysis, inductively coupled plasma optical emission spectroscopy, X-ray photoelectron spectroscopy, and nitrogen physisorption. Results of the material characterization were linked to their electrochemical behavior. Specific capacitance of around 120 F g(-1) at low potential sweep rate of 5 mV s(-1) was observed for original PPy-NTs. However, when the potential sweep rate was increased to 100 mV s(-1), PPy-NT salt retained the value of specific capacitance, while the capacitance of PPy-NT base decreased by 70%. Upon carbonization of PPy-NT salt, the specific capacitance was doubled and capacitance fade measured in the interval 5-100 mV s(-1) was determined to be around 45%. It is proposed that the absolute value of specific capacitance is determined by specific surface area and surface functional groups, while the capacitance fade is determined by the conductivity of the electrode material. In this manner, a linear relationship between the percent of capacitance fade and the logarithm of the conductivity was revealed. C-PPy-NTs were also tested as an electrocatalyst for the oxygen reduction reaction (ORR) in alkaline media. High ORR activity was observed, characterized by the onset potential of -0.1 V versus saturated calomel electrode and the apparent number of electrons consumed per oxygen molecule higher than 3. Appreciable ORR activity can be linked with a high fraction of mesopores and the presence of surface functional groups, especially pyridinic and pyrrolic nitrogens, and also with a high degree of structural disorder. PB - American Chemical Society (ACS) T2 - Journal of Physical Chemistry C T1 - Synthesis, Characterization, and Electrochemistry of Nanotubular Polypyrrole and Polypyrrole-Derived Carbon Nanotubes VL - 118 IS - 27 SP - 14770 EP - 14784 DO - 10.1021/jp502862d ER -
@article{ author = "Ciric-Marjanovic, Gordana and Mentus, Slavko and Pasti, Igor and Gavrilov, Nemanja and Krstić, Jugoslav and Travas-Sejdic, Jadranka and Strover, Lisa T. and Kopecka, Jitka and Moravkova, Zuzana and Trchova, Miroslava and Stejskal, Jaroslav", year = "2014", abstract = "Polypyrrole nanotubes (PPy-NTs) were prepared by the oxidation of pyrrole with iron(III) chloride in the presence of a structure-guiding agent, methyl orange. Upon carbonization of the salt form of PPy-NTs, the conducting nitrogen-containing nanotubular carbonaceous material (C-PPy-NT) was obtained. The morphology, structure, and physicochemical properties of PPy-NTs in salt and base form as well as C-PPy-NTs were investigated by transmission electron microscopy, Fourier transform infrared and Raman spectroscopies, conductivity measurements, elemental microanalysis, inductively coupled plasma optical emission spectroscopy, X-ray photoelectron spectroscopy, and nitrogen physisorption. Results of the material characterization were linked to their electrochemical behavior. Specific capacitance of around 120 F g(-1) at low potential sweep rate of 5 mV s(-1) was observed for original PPy-NTs. However, when the potential sweep rate was increased to 100 mV s(-1), PPy-NT salt retained the value of specific capacitance, while the capacitance of PPy-NT base decreased by 70%. Upon carbonization of PPy-NT salt, the specific capacitance was doubled and capacitance fade measured in the interval 5-100 mV s(-1) was determined to be around 45%. It is proposed that the absolute value of specific capacitance is determined by specific surface area and surface functional groups, while the capacitance fade is determined by the conductivity of the electrode material. In this manner, a linear relationship between the percent of capacitance fade and the logarithm of the conductivity was revealed. C-PPy-NTs were also tested as an electrocatalyst for the oxygen reduction reaction (ORR) in alkaline media. High ORR activity was observed, characterized by the onset potential of -0.1 V versus saturated calomel electrode and the apparent number of electrons consumed per oxygen molecule higher than 3. Appreciable ORR activity can be linked with a high fraction of mesopores and the presence of surface functional groups, especially pyridinic and pyrrolic nitrogens, and also with a high degree of structural disorder.", publisher = "American Chemical Society (ACS)", journal = "Journal of Physical Chemistry C", title = "Synthesis, Characterization, and Electrochemistry of Nanotubular Polypyrrole and Polypyrrole-Derived Carbon Nanotubes", volume = "118", number = "27", pages = "14770-14784", doi = "10.1021/jp502862d" }
Ciric-Marjanovic, G., Mentus, S., Pasti, I., Gavrilov, N., Krstić, J., Travas-Sejdic, J., Strover, L. T., Kopecka, J., Moravkova, Z., Trchova, M.,& Stejskal, J.. (2014). Synthesis, Characterization, and Electrochemistry of Nanotubular Polypyrrole and Polypyrrole-Derived Carbon Nanotubes. in Journal of Physical Chemistry C American Chemical Society (ACS)., 118(27), 14770-14784. https://doi.org/10.1021/jp502862d
Ciric-Marjanovic G, Mentus S, Pasti I, Gavrilov N, Krstić J, Travas-Sejdic J, Strover LT, Kopecka J, Moravkova Z, Trchova M, Stejskal J. Synthesis, Characterization, and Electrochemistry of Nanotubular Polypyrrole and Polypyrrole-Derived Carbon Nanotubes. in Journal of Physical Chemistry C. 2014;118(27):14770-14784. doi:10.1021/jp502862d .
Ciric-Marjanovic, Gordana, Mentus, Slavko, Pasti, Igor, Gavrilov, Nemanja, Krstić, Jugoslav, Travas-Sejdic, Jadranka, Strover, Lisa T., Kopecka, Jitka, Moravkova, Zuzana, Trchova, Miroslava, Stejskal, Jaroslav, "Synthesis, Characterization, and Electrochemistry of Nanotubular Polypyrrole and Polypyrrole-Derived Carbon Nanotubes" in Journal of Physical Chemistry C, 118, no. 27 (2014):14770-14784, https://doi.org/10.1021/jp502862d . .