Electrosurface properties of single-crystalline detonation nanodiamond particles obtained by air annealing of their agglomerates
- Авторы: Shvidchenko A.V.1, Zhukov A.N.2, Dideikin A.T.1, Baidakova M.V.1, Shestakov M.S.1, Shnitov V.V.1, Vul’ A.Y.1
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Учреждения:
- Ioffe Physical Technical Institute
- St. Petersburg State University
- Выпуск: Том 78, № 2 (2016)
- Страницы: 235-241
- Раздел: Article
- URL: https://journals.rcsi.science/1061-933X/article/view/200318
- DOI: https://doi.org/10.1134/S1061933X16020149
- ID: 200318
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Аннотация
A complex study of electrosurface properties has been performed for single-crystalline detonation nanodiamond particles with sizes of 4–5 nm obtained by air annealing of their agglomerates. FTIR spectroscopy and X-ray photoelectron spectroscopy data indicate that the investigated properties result from the presence of two types of ionogenic functional groups on the particle surface, i.e., acidic carboxyl and amphoteric hydroxyl groups. Acid-base potentiometric titration, laser Doppler electrophoresis, and conductometry have been employed to measure the ΓH+(pH) and ΓOH-(pH) adsorption isotherms of potential-determining ions, as well as the pH dependences (in a pH range of 3.5–10.5) of the surface charge density, electrophoretic mobility, and specific surface conductivity of detonation nanodiamond particles in aqueous 0.0001–0.01 M KCl solutions.
Об авторах
A. Shvidchenko
Ioffe Physical Technical Institute
Автор, ответственный за переписку.
Email: AlexShvidchenko@mail.ru
Россия, Politekhnicheskaya ul. 26, St. Petersburg, 194021
A. Zhukov
St. Petersburg State University
Email: AlexShvidchenko@mail.ru
Россия, Universitetskaya nab. 7/9, St. Petersburg, 199034
A. Dideikin
Ioffe Physical Technical Institute
Email: AlexShvidchenko@mail.ru
Россия, Politekhnicheskaya ul. 26, St. Petersburg, 194021
M. Baidakova
Ioffe Physical Technical Institute
Email: AlexShvidchenko@mail.ru
Россия, Politekhnicheskaya ul. 26, St. Petersburg, 194021
M. Shestakov
Ioffe Physical Technical Institute
Email: AlexShvidchenko@mail.ru
Россия, Politekhnicheskaya ul. 26, St. Petersburg, 194021
V. Shnitov
Ioffe Physical Technical Institute
Email: AlexShvidchenko@mail.ru
Россия, Politekhnicheskaya ul. 26, St. Petersburg, 194021
A. Vul’
Ioffe Physical Technical Institute
Email: AlexShvidchenko@mail.ru
Россия, Politekhnicheskaya ul. 26, St. Petersburg, 194021
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