Effect of synthesis parameters on characteristics of expanded graphite


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Abstract

Effect of synthesis parameters on the characteristics of expanded graphite were studied. The starting sample, intercalated graphite, was treated by several methods: thermal shock (400, 1000°C) and programmed heating (400–700°C). The samples were examined by scanning electron microscopy, energy-dispersive spectroscopy, X-ray diffraction analysis, and low-temperature nitrogen adsorption. The programmed-heating method yields better texture characteristics as compared with the thermal shock. The programmed-heating method was used to obtain high-quality expanded graphite with high specific surface area (299 m2 g–1) at a comparatively moderate temperature of 400°C.

About the authors

Yu. P. Steksova

Novosibirsk State Technical University

Email: Bannov.alexander@gmail.com
Russian Federation, pr. Karla Marksa 20, Novosibirsk, 630073

I. S. Berdyugina

Novosibirsk State Technical University

Email: Bannov.alexander@gmail.com
Russian Federation, pr. Karla Marksa 20, Novosibirsk, 630073

A. A. Shibaev

Novosibirsk State Technical University

Email: Bannov.alexander@gmail.com
Russian Federation, pr. Karla Marksa 20, Novosibirsk, 630073

A. V. Ukhina

Institute of Solid-State Chemistry and Mechanochemistry, Siberian Branch

Email: Bannov.alexander@gmail.com
Russian Federation, ul. Kutateladze 18, Novosibirsk, 630128

E. A. Maksimovskii

Institute of Inorganic Chemistry, Siberian Branch; Novosibirsk State University

Email: Bannov.alexander@gmail.com
Russian Federation, ul. Akademika Lavrent’eva 3, Novosibirsk, 630090; Novosibirsk

M. V. Popov

Novosibirsk State Technical University

Email: Bannov.alexander@gmail.com
Russian Federation, pr. Karla Marksa 20, Novosibirsk, 630073

A. G. Bannov

Novosibirsk State Technical University

Author for correspondence.
Email: Bannov.alexander@gmail.com
Russian Federation, pr. Karla Marksa 20, Novosibirsk, 630073

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