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Pregled bibliografske jedinice broj: 905767

In-situ and Real-time Monitoring of Mechanochemical Preparation of Li2Mg(NH2BH3)4 and Na2Mg(NH2BH3)4 and their Thermal Dehydrogenation


Biliškov, Nikola; Borgschulte, Andreas; Užarević, Krunoslav; Halasz, Ivan; Lukin, Stipe; Milošević, Sanja; Milanović, Igor; Grbović Novaković, Jasmina
In-situ and Real-time Monitoring of Mechanochemical Preparation of Li2Mg(NH2BH3)4 and Na2Mg(NH2BH3)4 and their Thermal Dehydrogenation // Chemistry : a European journal, 23 (2017), 16274-16282 doi:10.1002/chem.201702665 (međunarodna recenzija, članak, znanstveni)


CROSBI ID: 905767 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
In-situ and Real-time Monitoring of Mechanochemical Preparation of Li2Mg(NH2BH3)4 and Na2Mg(NH2BH3)4 and their Thermal Dehydrogenation

Autori
Biliškov, Nikola ; Borgschulte, Andreas ; Užarević, Krunoslav ; Halasz, Ivan ; Lukin, Stipe ; Milošević, Sanja ; Milanović, Igor ; Grbović Novaković, Jasmina

Izvornik
Chemistry : a European journal (0947-6539) 23 (2017); 16274-16282

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
hydrogen storage ; amidoborane ; Raman spectroscopy ; ammonia borane ; mechanochemistry

Sažetak
For the first time, in-situ monitoring of uninterrupted mechanochemical synthesis of two bimetallic amidoboranes, M2Mg(NH2BH3)4 (M = Li, Na), by means of Raman spectroscopy has been applied. This approach allowed real-time observation of key intermediate phases and a straightforward follow-up of the reaction course. Detailed analysis of time-dependent spectra revealed a two-step mechanism through MNH2BH3.NH3BH3 adducts as key intermediate phases which further reacted with MgH2, giving M2Mg(NH2BH3)4 as final products. The intermediates partially take a competitive pathway toward the oligomeric M(BH3NH2BH2NH2BH3) phases. The crystal structure of the novel bimetallic amidoborane Li2Mg(NH2BH3)4 was solved from high-resolution powder diffraction data and showed an analogous metal coordination as in Na2Mg(NH2BH3)4, but a significantly different crystal packing. Li2Mg(NH2BH3)4 thermally dehydrogenates releasing highly pure H2 in the amount of 7 wt% and at a lower temperature then its sodium analogue making it significantly more viable for practical applications.

Izvorni jezik
Engleski

Znanstvena područja
Kemija



POVEZANOST RADA


Projekt / tema
PKP-2016-06-4480

Ustanove
Institut "Ruđer Bošković", Zagreb

Profili:

Avatar Url Nikola Biliškov (autor)

Avatar Url Ivan Halasz (autor)

Avatar Url Krunoslav Užarević (autor)

Avatar Url Stipe Lukin (autor)

Citiraj ovu publikaciju

Biliškov, Nikola; Borgschulte, Andreas; Užarević, Krunoslav; Halasz, Ivan; Lukin, Stipe; Milošević, Sanja; Milanović, Igor; Grbović Novaković, Jasmina
In-situ and Real-time Monitoring of Mechanochemical Preparation of Li2Mg(NH2BH3)4 and Na2Mg(NH2BH3)4 and their Thermal Dehydrogenation // Chemistry : a European journal, 23 (2017), 16274-16282 doi:10.1002/chem.201702665 (međunarodna recenzija, članak, znanstveni)
Biliškov, N., Borgschulte, A., Užarević, K., Halasz, I., Lukin, S., Milošević, S., Milanović, I. & Grbović Novaković, J. (2017) In-situ and Real-time Monitoring of Mechanochemical Preparation of Li2Mg(NH2BH3)4 and Na2Mg(NH2BH3)4 and their Thermal Dehydrogenation. Chemistry : a European journal, 23, 16274-16282 doi:10.1002/chem.201702665.
@article{article, year = {2017}, pages = {16274-16282}, DOI = {10.1002/chem.201702665}, keywords = {hydrogen storage, amidoborane, Raman spectroscopy, ammonia borane, mechanochemistry}, journal = {Chemistry : a European journal}, doi = {10.1002/chem.201702665}, volume = {23}, issn = {0947-6539}, title = {In-situ and Real-time Monitoring of Mechanochemical Preparation of Li2Mg(NH2BH3)4 and Na2Mg(NH2BH3)4 and their Thermal Dehydrogenation}, keyword = {hydrogen storage, amidoborane, Raman spectroscopy, ammonia borane, mechanochemistry} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE


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