Electrical and thermal properties of graphite/polyaniline composites

Bourdo, Shawn E.; Warford, Brock A.; Viswanathan, Tito

doi:10.1016/j.jssc.2012.06.038

Cited by 30 publications

(18 citation statements)

References 22 publications

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“…The pure graphite sample decomposes above 600 °C, whereas the 20 % graphite composite presents four degradation steps (three attributed to the pure polyaniline and one to the pure graphite). Similar results were found by Kowner, et al [29], Bourdo, et al [30] and Mo, et al [31].…”

Section: Study Of Differential Scanning Calorimetry and Thermal Gravisupporting

confidence: 88%

“…Mo et al [31] has detected an increase in the electrical conductivity as a function of graphite nanosheet content in a composite prepared with graphite nanosheets and PANI. Bourdo et al [30] also found similar behavior for pure PANI and graphite samples and for PANI/graphite composites. In the present study, the 30 % PANI composite compound was employed due to the improved performance of its electrical response.…”

Section: Fig 2 Electrical Conductivities Of Pani/gec As a Function mentioning

confidence: 62%

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Characterization of an hrp-aox-polyaniline-graphite composite biosensor

Santana

Southgate

Mendes

et al. 2014

J. Electrochem. Sci. Eng.

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Section: Study Of Differential Scanning Calorimetry and Thermal Gravisupporting

confidence: 88%

Section: Fig 2 Electrical Conductivities Of Pani/gec As a Function mentioning

confidence: 62%

Characterization of an hrp-aox-polyaniline-graphite composite biosensor

Santana

Southgate

Mendes

et al. 2014

J. Electrochem. Sci. Eng.

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“…The expanded graphite (EG), produced by expandable graphite, has already been characterized by authors in previous works [ 41 , 42 ].…”

Section: Resultsmentioning

confidence: 99%

“…Expandable graphite (EG 3772) intercalated with a mixture of sulfuric and nitric acid supplied by Anthracite Industries was employed to obtain expanded graphite (EG) flakes by means of rapid heating at 700 °C for 2 min, according to a method developed in previous works [ 41 , 42 ]. The EG was characterized by a specific volume of about 250 cm 3 /g and a carbon content of about 99.5%.…”

Section: Methodsmentioning

confidence: 99%

Transport Properties of Natural and Artificial Smart Fabrics Impregnated by Graphite Nanomaterial Stacks

et al. 2021

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In this work, we studied the transport properties (thermal and electrical conductivity) of smart fabric materials treated with graphite nanomaterial stacks–acetone suspensions. An innovative and easy method to produce graphite nanomaterial stacks–acetone-based formulations, starting from a low-cost expandable graphite, is proposed. An original, economical, fast, and easy method to increase the thermal and electrical conductivity of textile materials was also employed for the first time. The proposed method allows the impregnation of smart fabric materials, avoiding pre-coating of the fibers, thus reducing costs and processing time, while obtaining a great increase in the transport properties. Two kinds of textiles, cotton and Lycra®, were selected as they represent the most used natural and artificial fabrics, respectively. The impact of the dimensions of the produced graphite nanomaterial stacks–acetone-based suspensions on both the uniformity of the treatment and the transport properties of the selected textile materials was accurately evaluated using several experimental techniques. An empirical relationship between the two transport properties was also successfully identified. Finally, several theoretical models were applied to predict the transport properties of the developed smart fabric materials, evidencing a good agreement with the experimental data.

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“…The integration of graphitic materials within the polymeric matrix has been shown to alter the structural, thermal, optical, electronic, and morphological characteristics of the polymers. Therefore, much emphasis should be put on understanding the role that such graphitic structures play in the charge transfer that takes place within organic optoelectronic devices 39–44…”

Section: Discussionmentioning

confidence: 99%

Optimization of the Protonation Level of Polyaniline‐Based Hole‐Transport Layers in Bulk‐Heterojunction Organic Solar Cells

et al. 2013

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In this work, polyaniline (PANI) protonated with various levels of camphor sulfonic acid (HCSA) has been used as a hole‐transport layer (HTL) in organic bulk‐heterojunction solar cells. Polyaniline with three different protonation levels was inserted between poly(3‐hexylthiophene‐2,5‐diyl):[6,6]‐phenyl‐C61‐butyric acid methyl ester (P3HT:PCBM) and the indium‐tin oxide (ITO) glass transparent electrode to explore the effects of varying the protonation level to optimize the hole‐transport properties. The three protonation concentrations (in molar ratios) of PANI are zero‐protonated (PANI/HCSA, 1:0), half‐protonated (PANI/HCSA, 1:1), and fully protonated (PANI/HCSA, 1:2) thin films. Current–voltage measurements under AM 1.5 conditions revealed that a conversion efficiency of 1.3 % was achieved if half‐protonated PANI was used as the HTL. Several analytical methods were utilized for characterizing PANI to understand the effects of the protonation level on the electrical, optoelectronic, and structural characteristics, and their correlation with final device properties.

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Electrical and thermal properties of graphite/polyaniline composites

Cited by 30 publications

References 22 publications

Characterization of an hrp-aox-polyaniline-graphite composite biosensor

Characterization of an hrp-aox-polyaniline-graphite composite biosensor

Transport Properties of Natural and Artificial Smart Fabrics Impregnated by Graphite Nanomaterial Stacks

Optimization of the Protonation Level of Polyaniline‐Based Hole‐Transport Layers in Bulk‐Heterojunction Organic Solar Cells

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