Surface enhanced Raman scattering (SERS) investigation of amorphous carbon

Vereš, M.; Füle, Miklós; Tóth, S.; Koós, M.; Pócsik, I.

doi:10.1016/j.diamond.2004.01.041

Cited by 62 publications

(39 citation statements)

References 12 publications

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“…[15] This technique is called surface enhanced Raman scattering (SERS). Because of resonance effect with surface plasmons of Ag particles an enhancement of electric field may occur.…”

Section: Amorphous Carbon Dlcmentioning

confidence: 99%

“…al. [15] The SERS of a-C films gave two bands with positions of 1434 and 1585 cm ±1 . The assignation of the observed peaks is the subject of future studies.…”

Section: Amorphous Carbon Dlcmentioning

confidence: 99%

“…The assignation of the observed peaks is the subject of future studies. [15] Also other studies recommend, that the G and the D peak really should deconvoluted. Tarrant et.…”

Section: Amorphous Carbon Dlcmentioning

confidence: 99%

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Micro‐Raman Studies on DLC coatings

2005

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Raman scattering is an excellent tool to characterize nanocrystalline clusters and the structural arrangement of carbon atoms in carbon‐based materials. Diamond‐like carbon (DLC) films are used in many industrial applications due to their hardness, wear resistance and biological compatibility. The properties of DLC coatings depend on the carbon coordination and incorporation of other elements, influences onto their Raman spectra will be reviewed.

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“…[15] This technique is called surface enhanced Raman scattering (SERS). Because of resonance effect with surface plasmons of Ag particles an enhancement of electric field may occur.…”

Section: Amorphous Carbon Dlcmentioning

confidence: 99%

“…al. [15] The SERS of a-C films gave two bands with positions of 1434 and 1585 cm ±1 . The assignation of the observed peaks is the subject of future studies.…”

Section: Amorphous Carbon Dlcmentioning

confidence: 99%

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Micro‐Raman Studies on DLC coatings

2005

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“…It is essential to deconvolute the Raman spectra of highly disordered carbon materials in order to acquire the inUnauthenticated Download Date | 5/11/18 2:40 AM formation about the skeletal carbon structures in these disordered carbon materials 30 . The Raman spectra for the all carbon materials were similar ( Fig.…”

Section: Resultsmentioning

confidence: 99%

The simplex optimization for high porous carbons preparation

Sreńscek-Nazzal

Michalkiewicz

2011

Polish Journal of Chemical Technology

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The microporous carbon materials were prepared by chemical activation of Polish coal with potassium hydroxide using the simplex design method for planning the experiments. The experimental parameters were varied to identify the optimum conditions. Coal can be an excellent starting material for the preparation of high porous carbons for natural gas storage. The porosity of the resultant carbons was characterized by nitrogen adsorption (-196 o C). Methane adsorption was investigated in a volumetric laboratory installation at range pressures from 1 to 3.5 MPa (25 o C). The best results of methane storage capacity (557 cm 3 . g -1 ) were obtained when using an impregnation ratio 3.41/1 KOH/precursor and temperature at 592 o C, (S LANG = 2091 m 2 . g -1 ). The parameters of the preparation of high porosity and high methane adsorption carbon were determined by a fast and simple method.

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“…All the spectra have been normalized to the intensity of the D band. The G and D peak positions and the I D /I G intensity ratio are widely used for identification of the type and for characterization of the structure of amorphous carbons [38]. [39,40].…”

Section: The Raman Spectroscopy Studymentioning

confidence: 99%

Modification of Commercial Activated Carbons for CO₂Adsorption

et al. 2016

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The aim of the investigations was a modification of DTO, a commercial activated carbon (AC), to improve CO2 adsorption capacity. The adsorption of CO2 up to 40 bar at 40• C temperature was investigated. The volumetric method was applied for CO2 adsorption isotherm measurements. The starting material -DTO -was modified using chemical activation (KOH, ZnCl2, K2CO3). The textural parameters of all the ACs were determined by nitrogen adsorption at the liquid nitrogen temperature of -196• C on Quadrasorb SI. Results showed that the AC modified with KOH had the highest SBET, Vtot, Vmic values of 2063 m 2 /g, 1.13 cm 3 /g, and 0.67 cm 3 /g, respectively. ACs with a wider pore size distribution (from micropores to mesopores) were obtained. The maximum CO2 adsorption was equal to 14.44 mmol/g for DTO/KOH -modified carbon whereas 8.07 mmol/g of CO2 was adsorbed at DTO. The CO2 adsorption capacities of the ACs were found to be closely correlated with the BET surface areas of the materials tested. The experimental data was fitted to the Freundlich, Langmuir, Sips and Toth equations to determine the model isotherm. The Sips model was found to be the best for fitting the adsorption of CO2.

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Surface enhanced Raman scattering (SERS) investigation of amorphous carbon

Cited by 62 publications

References 12 publications

Micro‐Raman Studies on DLC coatings

Micro‐Raman Studies on DLC coatings

The simplex optimization for high porous carbons preparation

Modification of Commercial Activated Carbons for CO₂Adsorption

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Surface enhanced Raman scattering (SERS) investigation of amorphous carbon

Cited by 62 publications

References 12 publications

Micro‐Raman Studies on DLC coatings

Micro‐Raman Studies on DLC coatings

The simplex optimization for high porous carbons preparation

Modification of Commercial Activated Carbons for CO2Adsorption

Contact Info

Product

Resources

About

Modification of Commercial Activated Carbons for CO₂Adsorption