danДоклады Национальной академии наук БеларусиDoklady of the National Academy of Sciences of Belarus1561-83232524-2431The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"10.29235/1561-8323-2020-64-1-42-49dan-852Research ArticleХИМИЯCHEMISTRYСравнительный анализ методов получения титанатов литияComparative analysis of the methods of producing lithium titanatesМацукевичИ. В.MatsukevichI. V.

Мацукевич Ирина Васильевна - канд. хим. наук, заведующий лабораторией.

Ул. Сурганова, 9/1, 220072, Минск

Matsukevich Irina V. - Ph. D. (Chemistry), Head of the Laboratory.

9/1, Surganov Str., 220072, Minsk

irinavas.k1975@gmail.comКулакА. И.KulakA. I.

Кулак Анатолий Иосифович - член-корреспондент, доктор химических наук, профессор, директор.

Ул. Сурганова, 9/1, 220072, Минск

Kulak Anatoly I. - Correspondent Member, D. Sc. (Chemistry), Professor, Director.

9/1, Surganov Str., 220072, Minsk

ПолховскаяО. В.PolhovskayaO. V.

Полховская Ольга Васильевна - младший научный сотрудник.

Ул. Сурганова, 9/1, 220072, Минск

Polhovskya Olga V. - Junior researcher.

9/1, Surganov Str., 220072, Minsk

polhovskyaolga@mail.ruКулёминД. А.KiiliominD. A.

Кулёмин Денис Александрович - младший научный сотрудник.

Ул. Сурганова, 9/1, 220072, Минск

Kuliomin Denis A. - Junior researcher.

9/1, Surganov Str., 220072, Minsk

kuliomin.d.a@gmail.comИнститут общей и неорганической химии, Национальная академия наук БеларусиInstitute of General and Inorganic Chemistry, National Academy of Sciences of Belarus2020190320206414249Copyright © Мацукевич И.В., Кулак А.И., Полховская О.В., Кулёмин Д.А., 20202020Мацукевич И.В., Кулак А.И., Полховская О.В., Кулёмин Д.А.Matsukevich I.V., Kulak A.I., Polhovskaya O.V., Kiiliomin D.A.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://doklady.belnauka.by/jour/article/view/852

Анодные материалы со шпинельной структурой Li2MTi3O8 (M - двухвалентный металл) являются перспективными для хранения электроэнергии от возобновляемых источников, для портативной электроники и электромобилей. В настоящей работе мезопористые порошки титанатов лития Li2MTi3O8 (M - Co, Cu, Zn) шпинельной структуры получены методом самораспространяющегося высокотемпературного синтеза (СВС) из глицин-цитрат-нитратных смесей и для сопоставления золь-гель методом, изучена их кристаллическая структура, фазовый состав, термическая стабильность, микроструктура и дисперсность. Установлено, что метод СВС синтеза титанатов лития имеет ряд преимуществ по сравнению с золь-гель методом, включая отсутствие необходимости использования растворителей, пониженную агрегацию частиц, более высокую удельную поверхность и малую насыпную плотность получаемых порошков.

Anodic materials with spinel structure Li2MTi3O8 (M - divalent metal) are promising for storing electricity from renewable energy sources, for portable electronics and electric vehicles. In this work, mesoporous lithium titanates Li2MTi3O8 (M - Co, Cu, Zn) powders with spinel structure were prepared by the method of self-propagating high-temperature synthesis (SHS) from the glycine-citrate-nitrate mixtures and, for comparison, by the sol-gel method. Their crystal structure, phase composition, thermal stability, microstructure and dispersion were studied. It was established that the SHS method of preparation of lithium titanates has several advantages over the sol-gel method because there is no need to use any solvents; it is possible to reduce particle aggregation, to increase specific surface and to reduce bulk density of the obtained powders.

анодные материалылитий-ионные источники токазоль-гель методсамораспространяющийся высокотемпературный синтезшпинелиanode materialslithium-ion current sourcessol-gel methodself-propagating high-temperature synthesisspinelАвторы выражают благодарность Т. Ф. Кузнецовой за помощь в исследовании адсорбционных свойств. Работа выполнена в рамках международного белорусско-египетского проекта фундаментальных научных исследований НАН Беларуси «Разработка наноструктурных материалов для высокопроизводительных систем хранения энергии»The authors are very grateful to T. F. Kuznetsova for assistance in investigating the adsorption properties. 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The authors declare that there are no conflicts of interest present.