An Improved Purification of NaBH4 from Storage-Induced Impurities by Ammonia Assisted Crystallization in Diglyme Научная публикация
| Журнал |
International Journal of Hydrogen Energy
ISSN: 0360-3199 , E-ISSN: 1879-3487 |
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| Вых. Данные | Год: 2020, Том: 45, Номер: 55, Страницы: 30756-30766 Страниц : 11 DOI: 10.1016/j.ijhydene.2020.08.071 | ||
| Ключевые слова | NaBH4; Purification; Diglyme; Ammonia; Hydrogen generation; Catalytic hydrolysis | ||
| Авторы |
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| Организации |
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Информация о финансировании (1)
| 1 | Федеральное агентство научных организаций России | 0303-2016-0015 |
Реферат:
It was shown by ATR FTIR, XRD and 11B MAS NMR methods that increasing contents of sodium polyborate and sodium carbonate impurities were formed in solid sodium borohydride upon its storage and contact with the air. To increase the NaBH4 purity after storage, it was re-crystallized in diglyme using the well-known Brown's procedure. The purification efficiency was further improved by ammonia treatment during NaBH4 dissolution. It was found that the advantages of using the gaseous ammonia consisted in an increased NaBH4 solubility in diglyme and a more efficient reduction in the content of impurities to form a material consisting of uniform highly dispersed particles of the hydride having a regular cubic shape. It was found for the process of catalytic hydrolysis of NaBH4 that the rate of hydrogen generation and its yield increased with the decreasing content of impurities. These results demonstrate the importance of investigations aimed at improving the existing methods of NaBH4 purification and creating new ones.
Библиографическая ссылка:
Ozerova A.M.
, Komova O.V.
, Mukha S.A.
, Simagina V.I.
, Odegova G.V.
, Arzumanov S.S.
, Bulavchenko O.A.
, Netskina O.V.
An Improved Purification of NaBH4 from Storage-Induced Impurities by Ammonia Assisted Crystallization in Diglyme
International Journal of Hydrogen Energy. 2020. V.45. N55. P.30756-30766. DOI: 10.1016/j.ijhydene.2020.08.071 WOS Scopus РИНЦ OpenAlex CAPlus
An Improved Purification of NaBH4 from Storage-Induced Impurities by Ammonia Assisted Crystallization in Diglyme
International Journal of Hydrogen Energy. 2020. V.45. N55. P.30756-30766. DOI: 10.1016/j.ijhydene.2020.08.071 WOS Scopus РИНЦ OpenAlex CAPlus
Даты:
| Поступила в редакцию: | 15 июн. 2020 г. |
| Принята к публикации: | 8 авг. 2020 г. |
| Опубликована online: | 30 авг. 2020 г. |
| Опубликована в печати: | 6 нояб. 2020 г. |
Идентификаторы БД:
| ≡ Web of science: | WOS:000582322100067 |
| ≡ Scopus: | 2-s2.0-85090061635 |
| ≡ РИНЦ: | 45329812 |
| ≡ OpenAlex: | W3081642824 |
| ≡ Chemical Abstracts: | 2020:1683597 |