Linear carbon allotrope – carbon atom wires prepared by pyrolysis of starch

Xue, Ke; Tao, Feifei; Shen, Wei; He, Chun-Jian; Chen, Qiaoling; Zhu, Yimei

doi:10.1016/j.cplett.2004.01.007

Cited by 15 publications

(5 citation statements)

References 23 publications

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“…The activated carbon spheres, that were prepared from potato starch by carbonization followed by activation with KOH, were hollow and retained the original morphology of potato starch with a decrease in size (Zhoa et al, 2009). Xue et al (2004) prepared a carbon atom wire by pyrolysis of starch. The carbon *Corresponding author.…”

Section: Introductionmentioning

confidence: 99%

Nanocarbonfibril in rice flour charcoal

Mopoung¹,

Sirikulkajorn²,

Dummun³

et al. 2012

Int. J. Phys. Sci.

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This paper presents the results of a study of nanocarbonfibrils in charcoals, which were prepared from rice flour with diameters of 90, 75 and 38 µm, respectively. The rice flours were carbonized for 30 min at a temperature of 600 to 800°C. The carbonized products were characterized by scanning electron microscope (SEM), transmission electron microscope (TEM), Fourier transform infrared spectrometer (FTIR), energy dispersive X-ray spectrometer (EDS) and X-ray diffractometer (XRD). Nanocarbonfibrils with diameters of 59.42 to 68.38 nm were found in all carbonized products. The other nanocarbons exhibited by the products are carbon granules with diameters ranging from 0.9 to 1.1 µm. The most functional groups on surface charcoals are OH-stretching, C=C stretching, P-O-C stretching and Si-O-C stretching. The charcoal products are composed of amorphous carbon together with SiO 2 , K 2 CO 3 , K 2 O, KO 2 , Mg and P.

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Section: Introductionmentioning

confidence: 99%

Nanocarbonfibril in rice flour charcoal

Mopoung¹,

Sirikulkajorn²,

Dummun³

et al. 2012

Int. J. Phys. Sci.

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“…CAWs were prepared by pyrolysis of potato starch in the presence of a ferric metal as a catalyst in a tube furnace at the temperature of 500-800°C in the stream of Ar and H 2 [18]. The product was purified by HCl to remove the catalyst.…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Carbon atom wires (CAWs), a kind of homemade material [18], are of another allotropic form of carbon based on sp hybridization [19], electric conductive and take the shape of winding lines with the diameter of 0.20 nm. The sp carbon allotropy possesses plenty number of electrons capable of delocalization and contains many active groups, such as the hydroxyl radical -OH and the carboxyl group -COOH, verified by FTIR spectra and chemical analysis [18]. Such a structure presumably brings about their some features, such as the remarkable catalytic activity to the redox reactions of dopamine (DA) on the CAW, especially, the HNO 3 treated-CAW modified electrodes in pH 6.80 phosphate buffer solution [6].…”

Section: Introductionmentioning

confidence: 99%

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Selective determination of dopamine in the presence of ascorbic acid at the carbon atom wire modified electrode

Xue

Tao

et al. 2005

Journal of Electroanalytical Chemistry

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“…1 shows the FT-IR spectra of native starch, LDS and HDS between 750 and 1370 cm -1 . The absorption bands at ,930 cm -1 and ,1080 cm -1 was assigned to the C-C and C-O-C stretching and vibration, respectively, of starch and grafted AGE, and the peak at ,2900 cm -1 was assigned to the C-H stretching vibration [25,26]. The absorbances of LDS and HDS at ,930 cm -1 , ,1080 cm -1 and ,2900 cm -1 were all markedly increased as compared with those of native starch.…”

Section: Synthesis Of Age-modified Starchmentioning

confidence: 99%

Synthesis and Preparation of Crosslinked Allylglycidyl Ether‐Modified Starch‐Wood Fibre Composites

2007

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Native potato starch has been modified with allylglycidyl ether (AGE) under various reaction conditions including different sodium hydroxide and AGE concentrations, reaction temperatures and times. 1 H-NMR and FT-IR were used to analyze the products. AGE-modified starch, with two degrees of substitution (DS), namely DS = 1.3 and DS = 2.3, was synthesized and used for preparation of a new family of crosslinked composites reinforced with various amounts of bleached softwood fibres. Composite premixes of modified starch, wood fibres and ethylene glycol dimethacrylate (EGDA) were cured in a hot press using 2% (w/w) of benzoyl peroxide at 1507C under high pressure for 10 min. The matrix with high degree of substitution exhibited good processability and was easily processed even for the highest fibre contents, up to 70% (w/w). In addition, scanning electron micrographs showed good dispersion and adhesion between the starch matrix with high degree of substitution and fibre. The original poor mechanical properties of the cured modified starch were markedly improved by the addition of wood fibres. In the extractions tests cured high-DS and low-DS composite samples showed weight losses in the range of 1 and 15% (w/w), respectively. No unreacted crosslinker ethylene glycol dimethacrylate was detected in the solutes as determined by NMR.

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Linear carbon allotrope – carbon atom wires prepared by pyrolysis of starch

Cited by 15 publications

References 23 publications

Nanocarbonfibril in rice flour charcoal

Nanocarbonfibril in rice flour charcoal

Selective determination of dopamine in the presence of ascorbic acid at the carbon atom wire modified electrode

Synthesis and Preparation of Crosslinked Allylglycidyl Ether‐Modified Starch‐Wood Fibre Composites

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