Gold nanorod-polyaniline composites: Synthesis and evaluation as anode electrocatalysts for direct borohydride fuel cells
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2019
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© 2019 Elsevier Ltd.
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Two gold nanorod-polyaniline (Au-PANI) composites with different contents of Au were prepared by two methods. An ex situ method, in the presence of preformed gold nanorods (AuNRs) and in situ one, when an AuNRs and PANI matrix is produced simultaneously, were used. Both methods were performed in immiscible water/toluene biphasic system as a simple interfacial polymerization process. Optical, structural and morphological characteristics of the formed nanocomposites were identified. It was found that AuNRs are embedded in the conducting emeraldine salt form of PANI. Nanocomposites containing 2.0 and 28.9 wt% of Au were subsequently systematically studied for borohydride oxidation reaction (BOR) for potential application in direct borohydride-peroxide fuel cell (DBPFC). Reaction parameters: number of electrons exchanged, order of reaction and activation energy, were evaluated. Both Au-PANI nanocomposites showed activity for BOR. A laboratory DBPFC was tested reaching specific peak power d...ensity of 184 Wg(-1) at 65 degrees C with Au-PANI 1 nanocomposite (containing only 2.0 wt% of Au) as anode.
Ključne reči:
Borohydride oxidation reaction / Direct borohydride fuel cell / Gold / Polyaniline / NanostructuresIzvor:
Electrochimica Acta, 2019, 328, 135115-Finansiranje / projekti:
- Elektroprovodni i redoks-aktivni polimeri i oligomeri: sinteza, struktura, svojstva i primena (RS-MESTD-Basic Research (BR or ON)-172043)
- Litijum-jon baterije i gorivne ćelije-istraživanje i razvoj (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45014)
- Uticaj veličine, oblika i strukture nanočestica na njihova svojstva i svojstva nanokompozita (RS-MESTD-Basic Research (BR or ON)-172056)
- Materijali redukovane dimenzionalnosti za efikasnu apsorpciju svetlosti i konverziju energije (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45020)
DOI: 10.1016/j.electacta.2019.135115
ISSN: 0013-4686
WoS: 000496186100036
Scopus: 2-s2.0-85074116115
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Institucija/grupa
VinčaTY - JOUR AU - Milikić, Jadranka AU - Stamenović, Una AU - Vodnik, Vesna AU - Ahrenkiel, Scott Phillip AU - Šljukić, Biljana PY - 2019 UR - https://vinar.vin.bg.ac.rs/handle/123456789/8609 AB - Two gold nanorod-polyaniline (Au-PANI) composites with different contents of Au were prepared by two methods. An ex situ method, in the presence of preformed gold nanorods (AuNRs) and in situ one, when an AuNRs and PANI matrix is produced simultaneously, were used. Both methods were performed in immiscible water/toluene biphasic system as a simple interfacial polymerization process. Optical, structural and morphological characteristics of the formed nanocomposites were identified. It was found that AuNRs are embedded in the conducting emeraldine salt form of PANI. Nanocomposites containing 2.0 and 28.9 wt% of Au were subsequently systematically studied for borohydride oxidation reaction (BOR) for potential application in direct borohydride-peroxide fuel cell (DBPFC). Reaction parameters: number of electrons exchanged, order of reaction and activation energy, were evaluated. Both Au-PANI nanocomposites showed activity for BOR. A laboratory DBPFC was tested reaching specific peak power density of 184 Wg(-1) at 65 degrees C with Au-PANI 1 nanocomposite (containing only 2.0 wt% of Au) as anode. T2 - Electrochimica Acta T1 - Gold nanorod-polyaniline composites: Synthesis and evaluation as anode electrocatalysts for direct borohydride fuel cells VL - 328 SP - 135115 DO - 10.1016/j.electacta.2019.135115 ER -
@article{ author = "Milikić, Jadranka and Stamenović, Una and Vodnik, Vesna and Ahrenkiel, Scott Phillip and Šljukić, Biljana", year = "2019", abstract = "Two gold nanorod-polyaniline (Au-PANI) composites with different contents of Au were prepared by two methods. An ex situ method, in the presence of preformed gold nanorods (AuNRs) and in situ one, when an AuNRs and PANI matrix is produced simultaneously, were used. Both methods were performed in immiscible water/toluene biphasic system as a simple interfacial polymerization process. Optical, structural and morphological characteristics of the formed nanocomposites were identified. It was found that AuNRs are embedded in the conducting emeraldine salt form of PANI. Nanocomposites containing 2.0 and 28.9 wt% of Au were subsequently systematically studied for borohydride oxidation reaction (BOR) for potential application in direct borohydride-peroxide fuel cell (DBPFC). Reaction parameters: number of electrons exchanged, order of reaction and activation energy, were evaluated. Both Au-PANI nanocomposites showed activity for BOR. A laboratory DBPFC was tested reaching specific peak power density of 184 Wg(-1) at 65 degrees C with Au-PANI 1 nanocomposite (containing only 2.0 wt% of Au) as anode.", journal = "Electrochimica Acta", title = "Gold nanorod-polyaniline composites: Synthesis and evaluation as anode electrocatalysts for direct borohydride fuel cells", volume = "328", pages = "135115", doi = "10.1016/j.electacta.2019.135115" }
Milikić, J., Stamenović, U., Vodnik, V., Ahrenkiel, S. P.,& Šljukić, B.. (2019). Gold nanorod-polyaniline composites: Synthesis and evaluation as anode electrocatalysts for direct borohydride fuel cells. in Electrochimica Acta, 328, 135115. https://doi.org/10.1016/j.electacta.2019.135115
Milikić J, Stamenović U, Vodnik V, Ahrenkiel SP, Šljukić B. Gold nanorod-polyaniline composites: Synthesis and evaluation as anode electrocatalysts for direct borohydride fuel cells. in Electrochimica Acta. 2019;328:135115. doi:10.1016/j.electacta.2019.135115 .
Milikić, Jadranka, Stamenović, Una, Vodnik, Vesna, Ahrenkiel, Scott Phillip, Šljukić, Biljana, "Gold nanorod-polyaniline composites: Synthesis and evaluation as anode electrocatalysts for direct borohydride fuel cells" in Electrochimica Acta, 328 (2019):135115, https://doi.org/10.1016/j.electacta.2019.135115 . .