Acoustic density testing of blanks made of thermally expanded graphite

2020 ◽  
Author(s):  
O. P. Bogdan ◽  
O. V. Muravieva ◽  
D. V. Zlobin
Keyword(s):  
Expanded Graphite ◽  
Thermally Expanded Graphite

Adsorption Properties of Natural Carbonaceous Adsorbents and Thermally Expanded Graphite

2003 ◽  
Vol 76 (10) ◽  
pp. 1577-1582 ◽  
Author(s):  
Yu. I. Tarasevich ◽  
S. V. Bondarenko ◽  
V. V. Brutko ◽  
A. I. Zhukova ◽  
G. N. Malysh ◽  
...  
Keyword(s):  
Expanded Graphite ◽  
Adsorption Properties ◽  
Thermally Expanded Graphite ◽  
Carbonaceous Adsorbents

The research of the processes and properties of anodes for the cathodic protection of the thermally expanded graphite

2020 ◽  
Vol 30 ◽  
pp. 794-797
Author(s):  
S.A. Kotov ◽  
S.-V.R. Muzafarova ◽  
M.G. Livintsova ◽  
L.P. Baturova ◽  
Yu.V. Kuzmich
Keyword(s):  
Cathodic Protection ◽  
Expanded Graphite ◽  
Thermally Expanded Graphite

scholarly journals Carbon nanomaterials for supercapacitors: two electrode scheme

2021 ◽  
Vol 340 ◽  
pp. 01035
Author(s):  
Maxim V. Popov ◽  
Alexander G. Bannov ◽  
Stepan I. Yusin
Keyword(s):  
Activated Carbon ◽  
Carbon Nanofibers ◽  
Carbon Nanomaterials ◽  
Electrode Materials ◽  
Carbon Materials ◽  
Expanded Graphite ◽  
Thermally Expanded Graphite ◽  
Rice Hulls ◽  
Texture Characteristics ◽  
Electrodes For Supercapacitors

In this paper, the electrochemical and texture characteristics of electrode materials made of a number of promising carbon materials for supercapacitors were considered. Carbon nanofibers, thermally expanded graphite, and activated carbon derived from rice hulls were used as electrodes for supercapacitors. The paper presents a technique of synthesis of these electrode materials. A comparison of the capacitive characteristics of the electrodes using two-electrode scheme was carried out.

scholarly journals CAPACITIVE PROPERTIES OF MODIFIED AND NON MODIFIED THERMALLY EXPANDED GRAPHITE COMPOSITES WITH POLYANILINE

2020 ◽  
Vol 2020 (60) ◽  
pp. 75-84
Author(s):  
Yaroslav KOVALYSHYN ◽  
◽  
Ivanna TERENYAK ◽  
Orest PEREVIZNYK ◽  
◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Electrochemical Method ◽  
Specific Conductivity ◽  
Expanded Graphite ◽  
Conditional Density ◽  
Thermally Expanded Graphite ◽  
Graphite Content ◽  
Capacitive Properties ◽  
Thermally Exfoliated Graphite ◽  
Graphite Composites

Modified thermally exfoliated graphite with p-nitrophenyldiazonium tetrafluoroborate, followed by reduction of nitrophenyl groups to aminophenyl ones. Composites PAN - graphite, PAN - modified graphite at a constant value of potential 1 V were synthesized by electrochemical method. Their conditional density and electrical conductivity were determined. The electrochemical behavior in 1 M HCl solution was investigated and the capacity of synthesized composites was calculated. The conditional density of PAN composites with modified and non modified graphite increases sharply with increasing graphite content from 0 to 5%. At graphite contents higher than 5%, the density of composites varies very slightly. In the range of graphite contents 0% - 20%, the density is the highest for composites with a graphite content of 5% - 10%. In the case of modified graphite, the density of composites is higher than that of composites with non modified graphite. Analysis of the dependence of the specific conductivity on the content of modified graphite indicates that the conductivity of PAN - graphite composites increases the most with increasing graphite content from 1 to 10%. In this interval, the conductivity increases linearly. This indicates the absence of specific interactions between the components in the synthesized composites, as well as the fact that the nature of the distribution of these components does not change with changes in the graphite content. For a composite with modified graphite, there are two maximum capacities of composites with a graphite content of 2 and 10%. For a composite with non modified graphite on the obtained curves there is a maximum capacity of composites with a graphite content of 2%. Modification of the graphite surface leads to increased interaction between the components of the compo¬site, which resulted in the compaction of its structure. As a result, the capacitive characteristics of modified graphite composites, as well as CVA currents and electrical conductivity, were lower compared to composites with non modified graphite.

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