Реферат: In this paper, low-temperature solid-state processes of the dehydrogenation of ammonia borane (NH3BH3, AB) samples of different purity are compared under the conditions of isothermal heating at 100 °C, as well as in the course of thermal analysis which was also carried out at different rates of heating. The composition of boron-containing impurities was studied by attenuated total reflection Fourier transform infrared spectroscopy (ATR FTIR) and 11B magic angle spinning nuclear magnetic resonance (11B MAS NMR). Accumulation in AB of three- and four-coordinated borate anions upon contact of hydride with air moisture is established. The apparent activation energies were calculated from thermal analysis data, and found to decrease from 174 to 163 kJ/mol as the AB purity decreased from 93% to 79%. This showed itself in a shortening of the induction period during the AB thermolysis under isothermal conditions. The prospects of using the thermal analysis for estimating NH3BH3 reactivity are discussed.

Библиографическая ссылка: Komova O.V. , Netskina O.V. , Ozerova A.M. , Odegova G.V. , Arzumanov S.S. , Simagina V.I.
The Effect of Storage-Induced Changes in Ammonia Borane on Hydrogen Release during Its Low-Temperature Thermolysis
Inorganics. 2019. V.7. N8. 96 :1-10. DOI: 10.3390/inorganics7080096 WOS Scopus РИНЦ CAPlus OpenAlex

Файлы: Полный текст от издателя

Даты:

Поступила в редакцию:	28 июн. 2019 г.
Принята к публикации:	1 авг. 2019 г.
Опубликована в печати:	1 авг. 2019 г.
Опубликована online:	4 авг. 2019 г.

Идентификаторы БД:

Web of science:	WOS:000482965600001
Scopus:	2-s2.0-85071319096
РИНЦ:	41660524
Chemical Abstracts:	2020:612009
OpenAlex:	W2964492212

Цитирование в БД:

БД	Цитирований
Scopus	6
Web of science	6
РИНЦ	6
OpenAlex	6

Альметрики: