Nitrogen inserting in fluorinated graphene via annealing of acetonitrile intercalated graphite fluoride. Issue 12 (22nd September 2014)

• Record Type: Journal Article
• Authors: Fedoseeva, Yu. V.; Okotrub, A. V.; Asanov, I. P.; Pinakov, D. V.; Chekhova, G. N.; Tur, V. A.; Plyusnin, P. E.; Vyalikh, D. V.; Bulusheva, L. G.
• Is Part Of: Physica status solidi. Volume 251:Issue 12(2014:Dec.)
• Page Start: 2530
• Page End: 2535
• Publication Date: 2014-09-22
• Subjects: Solid state physics -- Periodicals; Solids -- Periodicals; Atomic structure -- Periodicals; 530.41
• DOI: 10.1002/pssb.201451281
• Languages: English
• ISSNs: 0370-1972

Abstract

<abstract abstract-type="main"> <title> <x xml:space="preserve">Abstract</x> </title> <sec id="pssb201451281-sec-0001" sec-type="section"> <p>Fluorinated graphite intercalation compounds (FGICs) with acetonitrile C<sub>2</sub>F<sub><italic>x</italic></sub> · <italic>y</italic>CH<sub>3</sub>CN (<italic>x</italic> = 0.92, 0.69, and 0.49) have been synthesized using a gaseous mixture of BrF<sub>3</sub> and Br<sub>2</sub> at room temperature and subsequent replacement of the reaction medium components on acetonitrile by isopiestic method. The change in functional composition and electronic structure of FGICs under annealing at 250–260 °C was studied by infrared, X‐ray photoelectron, and near‐edge X‐ray absorption fine structure spectroscopy (NEXAFS) methods. Analysis of the data revealed interaction of acetonitrile with a C<sub>2</sub>F<sub><italic>x</italic></sub> matrix. The X‐ray spectra detected formation of new nitrogen species attributed to two‐coordinated and mono hydrogenated three‐coordinated atoms. Mechanism of nitrogen incorporation in the fluorinated graphene layers was proposed. <inline-graphic xlink:href="ark:/27927/pgh2jcbhhwf" content-type="pssb201451281-gra-0001" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></p> <p>Schematic structure of graphite fluoride C<sub>2</sub>F<sub><italic>x</italic></sub> intercalated with acetonitrile and NEXAFS N K‐edge spectrum of C<sub>2</sub>F<sub>0.69</sub> · 0.137CH<sub>3</sub>CN before and after annealing at 250 °C.</p> </sec> </abstract>