Positron Spectroscopy of Nanodiamonds after Hydrogen Sorption

Positron Spectroscopy of Nanodiamonds after Hydrogen Sorption

Dettagli Bibliografici
Parent link:	Nanomaterials Vol. 8, iss. 1.— 2018.— [36, 12 p.]
Enti autori:	Национальный исследовательский Томский политехнический университет Инженерная школа ядерных технологий Отделение экспериментальной физики, Национальный исследовательский Томский политехнический университет Инженерная школа энергетики Отделение электроэнергетики и электротехники (ОЭЭ)
Altri autori:	Nikitina L. V. Ludmila Vladimirovna, Laptev R. S. Roman Sergeevich, Abzaev Y. A. Yury Afanasjevich, Lider A. M. Andrey Markovich, Ivashutenko A. S. Alexander Sergeevich
Riassunto:	Title screen The structure and defects of nanodiamonds influence the hydrogen sorption capacity. Positronium can be used as a sensor for detecting places with the most efficient capture of hydrogen atoms. Hydrogenation of carbon materials was performed from gas atmosphere. The concentration of hydrogen absorbed by the sample depends on the temperature and pressure. The concentration 1.2 wt % is achieved at the temperature of 243 K and the pressure of 0.6 MPa. The hydrogen saturation of nanodiamonds changes the positron lifetime. Increase of sorption cycle numbers effects the positron lifetime, as well as the parameters of the Doppler broadening of annihilation line. The electron-positron annihilation being a sensitive method, it allows detecting the electron density fluctuation of the carbon material after hydrogen saturation.
Lingua:	inglese
Pubblicazione:	2018
Soggetti:	электронный ресурс труды учёных ТПУ наноалмазы позитронная спектроскопия сорбция водород
Accesso online:	http://dx.doi.org/10.3390/nano8010036
Natura:	Elettronico Capitolo di libro
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=658130

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