One-pot synthesis of novel silver-polyaniline-polyvinylpyrrolidone electrocatalysts for efficient oxygen reduction reaction
Само за регистроване кориснике
2018
Аутори
Stamenović, UnaGavrilov, Nemanja M.
Pašti, Igor A.
Otoničar, Mojca
Ćirić-Marjanović, Gordana N.
Škapin, Srečo Davor
Mitrić, Miodrag
Vodnik, Vesna
Чланак у часопису (Објављена верзија)
,
© 2018 Elsevier Ltd.
Метаподаци
Приказ свих података о документуАпстракт
A facile and fast aqueous phase-based strategy to synthesize silver-polyaniline-polyvinylpyrrolidone (Ag-PANI-PVP) nanocomposites, via chemical oxidative polymerization method is presented. In the presence of polyvinylpyrrolidone (PVP), which has an accelerating effect on the oxidation of aniline with silver nitrate, Ag nanoparticles (AgNPs) were in situ generated in aqueous solution during simultaneous formation of polyaniline (PANI), without any additional reducing agent or complicated treatment. We have demonstrated synthesis of three stabile Ag-PANI-PVP nanocomposites with different content, size, and morphology of Ag nanoparticles by varying the experimental parameters, such as pH and PVP concentration. As a result, this led to different Ag nanostructures (spherical and polyhedral NPs), and, consequently, different morphology of formed nanocomposites (granular and nanosheets). The physicochemical properties of nanocomposites were examined by using different analytical techniques (...UV–Vis, TEM, FESEM, FT-IR, XRD, and Raman). It is found that optical properties, electrical conductivity and the content of Ag in the composites vary depending on the synthetic conditions. The electrocatalytic behavior of Ag-PANI-PVP nanocomposites was examined towards the oxygen reduction reaction in acidic and alkaline media. All tested nanocomposites showed high electrocatalytic activity, while the most active catalyst is the one with the highest electrical conductivity (≈0.6 S cm−1) and the lowest Ag content (3.4 wt%), synthesized in the solution without added acid. The simplicity of synthesis and good electrocatalytic efficiency of prepared nanocomposites combined with large-scale availability make them attractive as Pt-free electrocatalysts.
Кључне речи:
Ag nanoparticles / electrocatalyst / nanocomposite / oxygen reduction reaction / polyanilineИзвор:
Electrochimica Acta, 2018, 281, 549-561Финансирање / пројекти:
- Литијум-јон батерије и горивне ћелије-истраживање и развој (RS-45014)
- Електропроводни и редокс-активни полимери и олигомери: синтеза, структура, својства и примена (RS-172043)
- Утицај величине, облика и структуре наночестица на њихова својства и својства нанокомпозита (RS-172056)
DOI: 10.1016/j.electacta.2018.05.202
ISSN: 0013-4686
WoS: 000439134600061
Scopus: 2-s2.0-85048162862
URI
https://linkinghub.elsevier.com/retrieve/pii/S0013468618312799https://vinar.vin.bg.ac.rs/handle/123456789/7717
Колекције
Институција/група
VinčaTY - JOUR AU - Stamenović, Una AU - Gavrilov, Nemanja M. AU - Pašti, Igor A. AU - Otoničar, Mojca AU - Ćirić-Marjanović, Gordana N. AU - Škapin, Srečo Davor AU - Mitrić, Miodrag AU - Vodnik, Vesna PY - 2018 UR - https://linkinghub.elsevier.com/retrieve/pii/S0013468618312799 UR - https://vinar.vin.bg.ac.rs/handle/123456789/7717 AB - A facile and fast aqueous phase-based strategy to synthesize silver-polyaniline-polyvinylpyrrolidone (Ag-PANI-PVP) nanocomposites, via chemical oxidative polymerization method is presented. In the presence of polyvinylpyrrolidone (PVP), which has an accelerating effect on the oxidation of aniline with silver nitrate, Ag nanoparticles (AgNPs) were in situ generated in aqueous solution during simultaneous formation of polyaniline (PANI), without any additional reducing agent or complicated treatment. We have demonstrated synthesis of three stabile Ag-PANI-PVP nanocomposites with different content, size, and morphology of Ag nanoparticles by varying the experimental parameters, such as pH and PVP concentration. As a result, this led to different Ag nanostructures (spherical and polyhedral NPs), and, consequently, different morphology of formed nanocomposites (granular and nanosheets). The physicochemical properties of nanocomposites were examined by using different analytical techniques (UV–Vis, TEM, FESEM, FT-IR, XRD, and Raman). It is found that optical properties, electrical conductivity and the content of Ag in the composites vary depending on the synthetic conditions. The electrocatalytic behavior of Ag-PANI-PVP nanocomposites was examined towards the oxygen reduction reaction in acidic and alkaline media. All tested nanocomposites showed high electrocatalytic activity, while the most active catalyst is the one with the highest electrical conductivity (≈0.6 S cm−1) and the lowest Ag content (3.4 wt%), synthesized in the solution without added acid. The simplicity of synthesis and good electrocatalytic efficiency of prepared nanocomposites combined with large-scale availability make them attractive as Pt-free electrocatalysts. T2 - Electrochimica Acta T1 - One-pot synthesis of novel silver-polyaniline-polyvinylpyrrolidone electrocatalysts for efficient oxygen reduction reaction VL - 281 SP - 549 EP - 561 DO - 10.1016/j.electacta.2018.05.202 ER -
@article{ author = "Stamenović, Una and Gavrilov, Nemanja M. and Pašti, Igor A. and Otoničar, Mojca and Ćirić-Marjanović, Gordana N. and Škapin, Srečo Davor and Mitrić, Miodrag and Vodnik, Vesna", year = "2018", abstract = "A facile and fast aqueous phase-based strategy to synthesize silver-polyaniline-polyvinylpyrrolidone (Ag-PANI-PVP) nanocomposites, via chemical oxidative polymerization method is presented. In the presence of polyvinylpyrrolidone (PVP), which has an accelerating effect on the oxidation of aniline with silver nitrate, Ag nanoparticles (AgNPs) were in situ generated in aqueous solution during simultaneous formation of polyaniline (PANI), without any additional reducing agent or complicated treatment. We have demonstrated synthesis of three stabile Ag-PANI-PVP nanocomposites with different content, size, and morphology of Ag nanoparticles by varying the experimental parameters, such as pH and PVP concentration. As a result, this led to different Ag nanostructures (spherical and polyhedral NPs), and, consequently, different morphology of formed nanocomposites (granular and nanosheets). The physicochemical properties of nanocomposites were examined by using different analytical techniques (UV–Vis, TEM, FESEM, FT-IR, XRD, and Raman). It is found that optical properties, electrical conductivity and the content of Ag in the composites vary depending on the synthetic conditions. The electrocatalytic behavior of Ag-PANI-PVP nanocomposites was examined towards the oxygen reduction reaction in acidic and alkaline media. All tested nanocomposites showed high electrocatalytic activity, while the most active catalyst is the one with the highest electrical conductivity (≈0.6 S cm−1) and the lowest Ag content (3.4 wt%), synthesized in the solution without added acid. The simplicity of synthesis and good electrocatalytic efficiency of prepared nanocomposites combined with large-scale availability make them attractive as Pt-free electrocatalysts.", journal = "Electrochimica Acta", title = "One-pot synthesis of novel silver-polyaniline-polyvinylpyrrolidone electrocatalysts for efficient oxygen reduction reaction", volume = "281", pages = "549-561", doi = "10.1016/j.electacta.2018.05.202" }
Stamenović, U., Gavrilov, N. M., Pašti, I. A., Otoničar, M., Ćirić-Marjanović, G. N., Škapin, S. D., Mitrić, M.,& Vodnik, V.. (2018). One-pot synthesis of novel silver-polyaniline-polyvinylpyrrolidone electrocatalysts for efficient oxygen reduction reaction. in Electrochimica Acta, 281, 549-561. https://doi.org/10.1016/j.electacta.2018.05.202
Stamenović U, Gavrilov NM, Pašti IA, Otoničar M, Ćirić-Marjanović GN, Škapin SD, Mitrić M, Vodnik V. One-pot synthesis of novel silver-polyaniline-polyvinylpyrrolidone electrocatalysts for efficient oxygen reduction reaction. in Electrochimica Acta. 2018;281:549-561. doi:10.1016/j.electacta.2018.05.202 .
Stamenović, Una, Gavrilov, Nemanja M., Pašti, Igor A., Otoničar, Mojca, Ćirić-Marjanović, Gordana N., Škapin, Srečo Davor, Mitrić, Miodrag, Vodnik, Vesna, "One-pot synthesis of novel silver-polyaniline-polyvinylpyrrolidone electrocatalysts for efficient oxygen reduction reaction" in Electrochimica Acta, 281 (2018):549-561, https://doi.org/10.1016/j.electacta.2018.05.202 . .