Solid State Physics. Nitrogen Adsorption by Thermoexfoliated Graphite / Slāpekļa Adsorbcija Uz Termoeksfoliētā Grafīta

Grehov, V.; Kalnacs, J.; Matzui, L. Yu.; Knite, Māris; Мурашов, А. А.; Vilken, A.

doi:10.2478/lpts-2013-0003

Cited by 3 publications

(2 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The first series of experiments was done manually [16]. The annealing of the quartz cuvette with 40 g of mix Ni-C was carried out in a horizontal movable quartz pipe of tubular furnace.…”

Section: Methodsmentioning

confidence: 99%

Synthesis of Graphenic Carbon Materials on Nickel Particles with Controlled Quantity of Carbon

Grehov

Kalnacs

Mishnev

et al. 2016

Latvian Journal of Physics and Technical Sciences

Self Cite

View full text Add to dashboard Cite

A cheap, comparatively simple and effective method is proposed for the large quantity production of the sheets of graphenic carbon materials (GCM) by annealing the mixture of nickel powder with a suitable carbon amount at the temperatures close to 1000 ºC. The number of graphene layers in the sheets of GCM may be varied by altering the amount of carbon in the mixture and parameters of annealing and drying of the obtained products. Samples of GCM were prepared in the form of heat-dried GCM paper and in the form of graphene sponge with freeze-drying. The appearance of GCM on the surface of Ni particles was identified using a scanning electron microscope (SEM) at a low accelerating voltage of 5 kV. The thickness and properties of the layers were investigated by electron microscopy and X-ray diffraction. The fabrication processes were carried out at the concentrations of added carbon from 0 to 1 at%. The results obtained are fully consistent with the well-known solid phase reactions of carbon dissolution in Ni at 1000 °C and graphene or graphite precipitation on the surface with cooling down to the room temperatures.

show abstract

“…The first series of experiments was done manually [16]. The annealing of the quartz cuvette with 40 g of mix Ni-C was carried out in a horizontal movable quartz pipe of tubular furnace.…”

Section: Methodsmentioning

confidence: 99%

Synthesis of Graphenic Carbon Materials on Nickel Particles with Controlled Quantity of Carbon

Grehov

Kalnacs

Mishnev

et al. 2016

Latvian Journal of Physics and Technical Sciences

Self Cite

View full text Add to dashboard Cite

show abstract

“…The longitudinal size of the crystallites can also be estimated from the Raman scattering [20]; the values obtained are from one to several tens of nanometres. Note that the outer dimensions of multilayer graphene plates range from 0.1 to 1 μm.…”

Section: Resultsmentioning

confidence: 99%

Nitrogen Adsorption on Graphene Sponges Synthesized by Annealing a Mixture of Nickel and Carbon Powders

Grehov

Kalnacs

Mishnev

et al. 2017

Latvian Journal of Physics and Technical Sciences

Self Cite

View full text Add to dashboard Cite

Adsorption by graphene sponge (GS) manufactured by annealing nickel-carbon powder mixture in inert atmosphere has been studied. By determining the specific surface area (SSA) for the GS sample, it has been found that Brunauer, Emmett, Teller method (BET) of approximation of experimental isotherms gives wrong results in the pressure range of 0.025-0.12 because adsorption in this pressure region is affected by walls of ampoule. Real SSA value has been found by subtracting pore effect method (SPE) or by BET approximation in a low range of relative pressure of 0.0004-0.002.

show abstract

Polymer/Nanographite Composites for Mechanical Impact Sensing

Knite

Linarts

2015

Graphene-Based Polymer Nanocomposites in Electronics

View full text Add to dashboard Cite

Solid State Physics. Nitrogen Adsorption by Thermoexfoliated Graphite / Slāpekļa Adsorbcija Uz Termoeksfoliētā Grafīta

Cited by 3 publications

References 12 publications

Synthesis of Graphenic Carbon Materials on Nickel Particles with Controlled Quantity of Carbon

Synthesis of Graphenic Carbon Materials on Nickel Particles with Controlled Quantity of Carbon

Nitrogen Adsorption on Graphene Sponges Synthesized by Annealing a Mixture of Nickel and Carbon Powders

Polymer/Nanographite Composites for Mechanical Impact Sensing

Contact Info

Product

Resources

About