Interfacial Synthesis of Gold-Polyaniline Nanocomposite and Its Electrocatalytic Application
Само за регистроване кориснике
2015
Аутори
Bogdanović, UnaPašti, Igor A.
Ćirić-Marjanović, Gordana N.
Mitrić, Miodrag
Ahrenkiel, Scott Phillip
Vodnik, Vesna
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Gold-polyaniline (Au-PANI) nanocomposite was prepared using a simple interfacial polymerization method, performed in an immiscible water/toluene biphasic system using tetrachloroaurate, AuCl4- as an oxidant. The formation of Au+ nanoparticles (AuNPs) or Au-PANI nanocomposite can be controlled to a certain degree by varying the ratio of initial Au+ and aniline concentrations. Under optimal condition (HAuCl4/aniline ratio is 1:2), green dispersion of Au-PANI nanocomposite is produced in aqueous phase, whose morphology, structure and physicochemical properties are investigated in details. The nanocomposite shows granular morphology with mostly rodlike AuNPs embedded in polymer. It was found that polyaniline in the composite is in the conducting emeraldine salt form, containing high amount of Au (28.85 wt %). Furthermore, the electrical conductivity of the nanocomposite was found to be four-fold higher than that of the polymer itself. In addition, the nanocomposite powder, isolated from th...e as-prepared aqueous dispersion, can later be easily redispersed in water and further used for various applications. Moreover, the obtained Au-PANI nanocomposite showed excellent electrocatalytic performance toward the electrochemical oxygen reduction reaction (ORR), with high ORR onset potential and good selectivity. This makes it a promising candidate for a new class of Pt-free ORR. catalyst.
Кључне речи:
polyaniline / Au nanoparticles / nanocomposite / conductivity / oxygen reduction reaction / electrocatalystИзвор:
ACS Applied Materials and Interfaces, 2015, 7, 51, 28393-28403Финансирање / пројекти:
- Материјали редуковане димензионалности за ефикасну апсорпцију светлости и конверзију енергије (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45020)
- Електропроводни и редокс-активни полимери и олигомери: синтеза, структура, својства и примена (RS-MESTD-Basic Research (BR or ON)-172043)
- U.S. Department of Energy [DE-FG02-08ER64624]
DOI: 10.1021/acsami.5b09145
ISSN: 1944-8244
PubMed: 26652303
WoS: 000369448200048
Scopus: 2-s2.0-84953269682
Колекције
Институција/група
VinčaTY - JOUR AU - Bogdanović, Una AU - Pašti, Igor A. AU - Ćirić-Marjanović, Gordana N. AU - Mitrić, Miodrag AU - Ahrenkiel, Scott Phillip AU - Vodnik, Vesna PY - 2015 UR - https://vinar.vin.bg.ac.rs/handle/123456789/922 AB - Gold-polyaniline (Au-PANI) nanocomposite was prepared using a simple interfacial polymerization method, performed in an immiscible water/toluene biphasic system using tetrachloroaurate, AuCl4- as an oxidant. The formation of Au+ nanoparticles (AuNPs) or Au-PANI nanocomposite can be controlled to a certain degree by varying the ratio of initial Au+ and aniline concentrations. Under optimal condition (HAuCl4/aniline ratio is 1:2), green dispersion of Au-PANI nanocomposite is produced in aqueous phase, whose morphology, structure and physicochemical properties are investigated in details. The nanocomposite shows granular morphology with mostly rodlike AuNPs embedded in polymer. It was found that polyaniline in the composite is in the conducting emeraldine salt form, containing high amount of Au (28.85 wt %). Furthermore, the electrical conductivity of the nanocomposite was found to be four-fold higher than that of the polymer itself. In addition, the nanocomposite powder, isolated from the as-prepared aqueous dispersion, can later be easily redispersed in water and further used for various applications. Moreover, the obtained Au-PANI nanocomposite showed excellent electrocatalytic performance toward the electrochemical oxygen reduction reaction (ORR), with high ORR onset potential and good selectivity. This makes it a promising candidate for a new class of Pt-free ORR. catalyst. T2 - ACS Applied Materials and Interfaces T1 - Interfacial Synthesis of Gold-Polyaniline Nanocomposite and Its Electrocatalytic Application VL - 7 IS - 51 SP - 28393 EP - 28403 DO - 10.1021/acsami.5b09145 ER -
@article{ author = "Bogdanović, Una and Pašti, Igor A. and Ćirić-Marjanović, Gordana N. and Mitrić, Miodrag and Ahrenkiel, Scott Phillip and Vodnik, Vesna", year = "2015", abstract = "Gold-polyaniline (Au-PANI) nanocomposite was prepared using a simple interfacial polymerization method, performed in an immiscible water/toluene biphasic system using tetrachloroaurate, AuCl4- as an oxidant. The formation of Au+ nanoparticles (AuNPs) or Au-PANI nanocomposite can be controlled to a certain degree by varying the ratio of initial Au+ and aniline concentrations. Under optimal condition (HAuCl4/aniline ratio is 1:2), green dispersion of Au-PANI nanocomposite is produced in aqueous phase, whose morphology, structure and physicochemical properties are investigated in details. The nanocomposite shows granular morphology with mostly rodlike AuNPs embedded in polymer. It was found that polyaniline in the composite is in the conducting emeraldine salt form, containing high amount of Au (28.85 wt %). Furthermore, the electrical conductivity of the nanocomposite was found to be four-fold higher than that of the polymer itself. In addition, the nanocomposite powder, isolated from the as-prepared aqueous dispersion, can later be easily redispersed in water and further used for various applications. Moreover, the obtained Au-PANI nanocomposite showed excellent electrocatalytic performance toward the electrochemical oxygen reduction reaction (ORR), with high ORR onset potential and good selectivity. This makes it a promising candidate for a new class of Pt-free ORR. catalyst.", journal = "ACS Applied Materials and Interfaces", title = "Interfacial Synthesis of Gold-Polyaniline Nanocomposite and Its Electrocatalytic Application", volume = "7", number = "51", pages = "28393-28403", doi = "10.1021/acsami.5b09145" }
Bogdanović, U., Pašti, I. A., Ćirić-Marjanović, G. N., Mitrić, M., Ahrenkiel, S. P.,& Vodnik, V.. (2015). Interfacial Synthesis of Gold-Polyaniline Nanocomposite and Its Electrocatalytic Application. in ACS Applied Materials and Interfaces, 7(51), 28393-28403. https://doi.org/10.1021/acsami.5b09145
Bogdanović U, Pašti IA, Ćirić-Marjanović GN, Mitrić M, Ahrenkiel SP, Vodnik V. Interfacial Synthesis of Gold-Polyaniline Nanocomposite and Its Electrocatalytic Application. in ACS Applied Materials and Interfaces. 2015;7(51):28393-28403. doi:10.1021/acsami.5b09145 .
Bogdanović, Una, Pašti, Igor A., Ćirić-Marjanović, Gordana N., Mitrić, Miodrag, Ahrenkiel, Scott Phillip, Vodnik, Vesna, "Interfacial Synthesis of Gold-Polyaniline Nanocomposite and Its Electrocatalytic Application" in ACS Applied Materials and Interfaces, 7, no. 51 (2015):28393-28403, https://doi.org/10.1021/acsami.5b09145 . .