Synthesis of polyaniline-gold/graphene oxide composite and microwave absorption characteristics of the composite films

Basavaraja, C.; Kim, Won Jung; Kim, Jae Won; Huh, Do Sung

doi:10.1016/j.matlet.2011.06.110

Cited by 76 publications

(33 citation statements)

References 18 publications

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“…The EMI-RCS values obtained from the PANS/GRG composites are higher compared with the values obtained in the previous studies in the literature [55][56][57]. However the EMI-RCS values of PANS/GRG composites are slightly lower as compared to the values reported by us in earlier studies for the PANI-GNP-GO composites [33].…”

Section: Microwave Absorption Studies Of Pans and Pans/grg Nanocomposcontrasting

confidence: 75%

“…In our earlier research [33] we have used HAuCl 4 as an oxidant in the polymerization of aniline hydrochloride in the presence of GO. During the present research we have slightly modified the process of method of polymerization to obtain PANS/GRG composites.…”

Section: Resultsmentioning

confidence: 99%

“…Considerable progress has also been made in the preparation of graphene oxide-polymer (GO-polymer) and reduced graphene oxide-polymer (RGO-polymer) composites, and significant enhancements in the mechanical and thermal properties of GO have been observed [29][30][31][32]. Thus, we have reported on the preparation and microwave absorption properties of PANI-gold nanoparticles-GO composites synthesized by in situ oxidation of aniline hydrochloride using hydrogen tetrachloroaurate as an oxidant [33]. However, the electrical conductivity of GO is low.…”

Section: Introductionmentioning

confidence: 99%

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Microwave absorption studies of polyaniline nanocomposites encapsulating gold nanoparticles on the surface of reduced graphene oxide in the presence of 2-naphthalene sulfonic acid

Basavaraja

Kim

et al. 2012

Colloid Polym Sci

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Polyaniline nanocomposites containing gold nanoparticles (GNPs) attached to the surface of reduced graphene oxide (RGO) were chemically prepared using β-naphthalene sulfonic acid as a dopant. The synthesized composites were characterized using Fourier transform infrared spectroscopy and UV-vis spectroscopy, and their surface morphology and amended crystallinity were determined by scanning electron microscopy and X-ray diffraction, respectively. Further the elemental analysis was also performed to identify the synthesized polymer composites. Complex impedance measurements were performed on the composite samples in the form of films. Sheets prepared by conventional techniques were used to study the microwave absorption properties in the microwave range of 2-12 GHz, and the effects of sample thickness on the microwave absorption were investigated. Experimental results show that the electrical conductivity of the composites increases with increasing concentrations of added GNP-RGO without a percolation threshold.

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Section: Microwave Absorption Studies Of Pans and Pans/grg Nanocomposcontrasting

confidence: 75%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Microwave absorption studies of polyaniline nanocomposites encapsulating gold nanoparticles on the surface of reduced graphene oxide in the presence of 2-naphthalene sulfonic acid

Basavaraja

Kim

et al. 2012

Colloid Polym Sci

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“…Many researchers are working in the field of making hybrid composites of PANI using graphene and GO. Basavaraja and coworkers [104] synthesized the composite of PANI−gold nanoparticle (GP)-GO composite and checked its EMI shielding in 2-12 GHz frequency range. In another work on PANI-GP-GO composite, PANI was doped using β-naphthalene sulphonic acid [105].…”

Section: Graphene (Gn)/graphene Oxide (Go)mentioning

confidence: 99%

Carbon nanostructure composite for electromagnetic interference shielding

2015

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This communication reviews current developments in carbon nanostructure-based composite materials for electromagnetic interference (EMI) shielding. With more and more electronic gadgets being used at different frequencies, there is a need for shielding them from one another to avoid interference. Conventionally, metal-based shielding materials have been used. But due to the requirement of light weight, corrosion resistive materials, lot of work is being done on composite materials. In this research the forerunner is the nanocarbon-based composite material whose different forms add different characteristics to the composite. The article focusses on composites based on graphene, graphene oxide, carbon nanotubes, and several other novel forms of carbon.

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“…Graphite oxide, graphene oxide (GO), reduced graphene oxide (rGO), and graphene in combination with metal nanoparticles have been utilized as catalyst supports [24,25].…”

Section: Introductionmentioning

confidence: 99%

Palladium nanoparticles supported on reduced graphene oxide as an efficient catalyst for the reduction of benzyl alcohol compounds

Mirza‐Aghayan

Tavana

Boukherroub

2015

Catalysis Communications

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Synthesis of polyaniline-gold/graphene oxide composite and microwave absorption characteristics of the composite films

Cited by 76 publications

References 18 publications

Microwave absorption studies of polyaniline nanocomposites encapsulating gold nanoparticles on the surface of reduced graphene oxide in the presence of 2-naphthalene sulfonic acid

Microwave absorption studies of polyaniline nanocomposites encapsulating gold nanoparticles on the surface of reduced graphene oxide in the presence of 2-naphthalene sulfonic acid

Carbon nanostructure composite for electromagnetic interference shielding

Palladium nanoparticles supported on reduced graphene oxide as an efficient catalyst for the reduction of benzyl alcohol compounds

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