Effective hydrogen release from ammonia borane and sodium borohydride mixture through homopolar based dehydrocoupling driven by intermolecular interaction and restrained water supply

2020 ◽  
Vol 8 (36) ◽  
pp. 19050-19056
Author(s):  
Pei Pei ◽  
Mark Cannon ◽  
Grace Quan ◽  
Erik Kjeang

Non-catalytic dehydrogenation of solid-state ammonia borane and sodium borohydride mixtures is achieved in this work by water vapor facilitated hydrothermolysis.

2012 ◽  
Vol 41 (3) ◽  
pp. 871-875 ◽  
Author(s):  
Yuede Pan ◽  
Yan Wang ◽  
Yanliang Liang ◽  
Zhanliang Tao ◽  
Jun Chen

2014 ◽  
Vol 27 (7) ◽  
pp. 597-603 ◽  
Author(s):  
Dongxia Ai ◽  
Yi Guo ◽  
Wei Liu ◽  
Yong Wang

CrystEngComm ◽  
2017 ◽  
Vol 19 (35) ◽  
pp. 5178-5183 ◽  
Author(s):  
Yahui Niu ◽  
Longfei Xu ◽  
Qin Wang ◽  
Haoran Wu ◽  
Yanrong Zhang

Two planar 2-(2-hydroxyphenyl)benzothiazole-based dyes without sterically bulky groups as exceedingly efficient solid-state fluorophores due to the absence of strong π–π intermolecular interaction.


2020 ◽  
Vol 73 (8) ◽  
pp. 794
Author(s):  
Aliyu M. Ja'o ◽  
Derek A. Wann ◽  
Conor D. Rankine ◽  
Matthew I. J. Polson ◽  
Sarah L. Masters

The molecular structure of morpholine borane complex has been studied in the solid state and gas phase using single-crystal X-ray diffraction, gas electron diffraction, and computational methods. Despite both the solid-state and gas-phase structures adopting the same conformation, a definite decrease in the B–N bond length of the solid-state structure was observed. Other structural variations in the different phases are presented and discussed. To explore the hydrogen storage potential of morpholine borane, the potential energy surface for the uncatalyzed and BH3-catalyzed pathways, as well as the thermochemistry for the hydrogen release reaction, were investigated using accurate quantum chemical methods. It was observed that both the catalyzed and uncatalyzed dehydrogenation pathways are favourable, with a barrier lower than the B–N bond dissociation energy, thus indicating a strong propensity for the complex to release a hydrogen molecule rather than dissociate along the B–N bond axis. A minimal energy requirement for the dehydrogenation reaction has been shown. The reaction is close to thermoneutral as demonstrated by the calculated dehydrogenation reaction energies, thus implying that this complex could demonstrate potential for future on-board hydrogen generation.


2010 ◽  
Vol 49 (20) ◽  
pp. 9596-9599 ◽  
Author(s):  
Amy M. Beaird ◽  
Thomas A. Davis ◽  
Michael A. Matthews

2019 ◽  
Vol 3 (2) ◽  
pp. 396-400 ◽  
Author(s):  
Simon Champet ◽  
Jan van den Berg ◽  
Robert Szczesny ◽  
Agata Godula-Jopek ◽  
Duncan H. Gregory

3-D nanocomposites of (reduced) graphene oxide and ammonia borane can be fabricated in a one-step ice templating process from aqueous suspensions. The nanocomposites release hydrogen at a reduced onset temperature, suppressing the release of diborane, borazine and ammonia.


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