The Influence of Nonstoichiometry on Changes in the Electronic Structure of Lithium Cobaltite Caused by Chemical Deintercalation of Li 1+xCoO2 (0 ≤ x ≤ 0.1) Научная публикация
Журнал |
Russian Journal of Physical Chemistry A
ISSN: 0036-0244 , E-ISSN: 1531-863X |
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Вых. Данные | Год: 2003, Том: 77, Номер: 9, Страницы: 1445-1450 Страниц : 6 | ||||||
Ключевые слова | acid; cobalt derivative; lithium cobaltite; nonstoichiometric compound; oxide; oxygen; unclassified drug | ||||||
Авторы |
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Организации |
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Реферат:
Changes in the electronic structure of lithium cobaltites Li1+xCoO2(0 less than or equal to x less than or equal to 0.1) during chemical deintercalation were studied by X-ray diffraction; IR, X-ray photoelectron, and diffuse reflectance electron spectroscopy; and magnetic measurements. Acid treatment was shown to cause the partial removal of lithium from the oxide structure and the appearance of delocalized electrons in the system. The electronic state of cobalt ions did not change significantly, whereas oxygen ions were oxidized (O-2 --> O-). Structural defects in delithiated oxides had the same nature as in the initial superstoichiometric oxides; these structural defects were low-coordinate oxygen ions in the O- state. The structure of oxides containing excess lithium was stabler during chemical deintercalation. The magnetic properties of delithiated oxides were determined by (Co3+-O-) exchange-coupled pairs.
Библиографическая ссылка:
Kaichev V.V.
, Kosova N.V.
, Devyatkina E.T.
, Bukhtiyarov V.I.
, Kellerman D.G.
The Influence of Nonstoichiometry on Changes in the Electronic Structure of Lithium Cobaltite Caused by Chemical Deintercalation of Li 1+xCoO2 (0 ≤ x ≤ 0.1)
Russian Journal of Physical Chemistry A. 2003. V.77. N9. P.1445-1450. WOS Scopus РИНЦ
The Influence of Nonstoichiometry on Changes in the Electronic Structure of Lithium Cobaltite Caused by Chemical Deintercalation of Li 1+xCoO2 (0 ≤ x ≤ 0.1)
Russian Journal of Physical Chemistry A. 2003. V.77. N9. P.1445-1450. WOS Scopus РИНЦ
Оригинальная версия:
Каичев В.В.
, Косова Н.В.
, Девяткина Е.Т.
, Бухтияров В.И.
, Келлерман Д.Г.
Влияние нестехиометрии на изменение электронного строения кобальтита лития при химической деинтеркаляции Li 1+xCoO 2 (0 < х < 0.1)
Журнал физической химии. 2003. Т.77. №9. С.1609-1615. РИНЦ
Влияние нестехиометрии на изменение электронного строения кобальтита лития при химической деинтеркаляции Li 1+xCoO 2 (0 < х < 0.1)
Журнал физической химии. 2003. Т.77. №9. С.1609-1615. РИНЦ
Даты:
Поступила в редакцию: | 15 окт. 2002 г. |
Опубликована в печати: | 1 сент. 2003 г. |
Идентификаторы БД:
Web of science | WOS:000185420700015 |
Scopus | 2-s2.0-0141889169 |
РИНЦ | 13429112 |