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Charge Distribution in Layered Lanthanide-Doped CuCr0.99Ln0.01S2 (Ln = Pr–Tb) Thermoelectric Materials Научная публикация

Журнал Materials
ISSN: 1996-1944
Вых. Данные Год: 2022, Том: 15, Номер: 24, Номер статьи : 8747, Страниц : 12 DOI: 10.3390/ma15248747
Ключевые слова layered copper-chromium disulfide; XPS; lanthanides; Seebeck coefficient; thermoelectricity
Авторы Korotaev Evgeniy V. 1 , Syrokvashin Mikhail M. 1 , Filatova Irina Yu. 1 , Sotnikov Aleksandr V. 1 , Kalinkin Alexandr V. 2
Организации
1 Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia
2 Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia

Информация о финансировании (1)

1 Российский научный фонд 19-73-10073

Реферат: The charge distribution study of metal atoms in CuCr0.99Ln0.01S2 (Ln = Pr–Tb) solid solutions was carried out using X-ray photoelectron spectroscopy (XPS). The analysis of the binding energy of S2p, Cu2p, Cr2p, Ln3d and Ln4d levels allows one to determine the oxidation state of atoms. Copper atoms were found to be monovalent. Chromium and lanthanide atoms were found to be in the trivalent state. Sulfur atoms were found to be in the divalent state. Cationic substitution was found to occur via an isovalent mechanism of Cr3+ to Ln3+. The obtained results were used for the interpretation of the Seebeck coefficient increase for CuCr0.99Ln0.01S2 solid solutions in contrast to the initial CuCrS2 matrix. The largest Seebeck coefficient values of 142 and 148 µV/K were observed at 500 K for CuCr0.99Sm0.01S2 and CuCr0.99Pr0.01S2, respectively. The obtained values are 1.4 times greater in comparison with those for the initial matrix (105 µV/K).
Библиографическая ссылка: Korotaev E.V. , Syrokvashin M.M. , Filatova I.Y. , Sotnikov A.V. , Kalinkin A.V.
Charge Distribution in Layered Lanthanide-Doped CuCr0.99Ln0.01S2 (Ln = Pr–Tb) Thermoelectric Materials
Materials. 2022. V.15. N24. 8747 :1-12. DOI: 10.3390/ma15248747 WOS Scopus РИНЦ CAPlus PMID OpenAlex
Даты:
Поступила в редакцию: 15 нояб. 2022 г.
Опубликована в печати: 1 дек. 2022 г.
Принята к публикации: 6 дек. 2022 г.
Опубликована online: 8 дек. 2022 г.
Идентификаторы БД:
Web of science: WOS:000902739300001
Scopus: 2-s2.0-85144624690
РИНЦ: 50398755
Chemical Abstracts: 2022:3181917
PMID (PubMed): 36556553
OpenAlex: W4311858868
Цитирование в БД:
БД Цитирований
Web of science 4
Scopus 4
РИНЦ 6
OpenAlex 4
Альметрики: