Influence of thermal treatment on the structure and electrical conductivity of thermally expanded graphite

被引：26

作者：

Darabut, Alina Madalina ^{[1
]}

Lobko, Yevheniia ^{[1
]}

Yakovlev, Yurii ^{[1
]}

Rodriguez, Miquel Gamon ^{[1
]}

Veltruska, Katerina ^{[1
]}

Smid, Bretislav ^{[1
]}

Kus, Peter ^{[1
]}

Novakova, Jaroslava ^{[1
]}

Dopita, Milan ^{[4
]}

Vorokhta, Maryna ^{[2
]}

Kopecky, Vladimir, Jr. ^{[3
]}

Prochazka, Marek ^{[3
]}

Matolinova, Iva ^{[1
]}

Matolin, Vladimir ^{[1
]}

机构：

[1] Charles Univ Prague, Fac Math & Phys, Dept Surface & Plasma Sci, V Holesovickach 2, Prague 18000 8, Czech Republic

[2] Czech Acad Sci, Inst Rock Struct & Mech, Dept Geochem, V Holesovickach 94-41, Prague 18209 8, Czech Republic

[3] Charles Univ Prague, Inst Phys, Fac Math & Phys, Ke Karlovu 5, Prague 12116 2, Czech Republic

[4] Charles Univ Prague, Fac Math & Phys, Dept Condensed Matter Phys, Ke Karlovu 5, Prague 12116 2, Czech Republic

来源：

ADVANCED POWDER TECHNOLOGY | 2022年 / 33卷 / 12期

关键词：

Thermally expanded graphite; Thermal treatment; Ordered and porous structure; Electrical conductivity; COMPOSITE BIPOLAR PLATES; PHASE-CHANGE MATERIALS; EXFOLIATED GRAPHITE; GRAPHENE OXIDE; MECHANICAL-PROPERTIES; RAMAN-SPECTROSCOPY; SURFACE-CHEMISTRY; CARBON MATERIALS; INTERCALATION; SPECTRA;

D O I：

10.1016/j.apt.2022.103884

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Thermally expanded graphite (TEG) is a promising filler beneficial to electrically conductive materials due to its high electrical conductivity, low density, and cost. In this work, the electrically conductive TEG was prepared by thermal treatment of the expandable graphite in the range of temperatures from 400 to 800 degrees C in air. Effects of the temperature treatment on the morphology and chemical structure of TEG were thoroughly characterized. Thermal treatment of the expandable graphite resulted in ther-mally expanded graphite formation with up to 6 times higher electrical conductivity than the precursor. Optimal conditions of thermal treatment were established at 600 degrees C providing material with the highest electrical conductivity, high expansion volume, and a well-ordered and defect-less structure.(c) 2022 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of PowderTechnology Japan. All rights reserved.

引用

页数：9

共 97 条

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