Effective synthesis of magnesium borohydride via B-O to B-H bond conversion

MgH2@Mg(BH4)2 Core–Shell-like Nanostructures: Synthesis, Hydrolysis Performance, and Promotion Mechanism

“…Further, the FTIR spectrum (Figure b­(2)) shows the presence of the characteristic stretching and deformation bands of the B–H bond at 2150–2400 and 1100–1300 cm –1 , confirming the formation of Mg­(BH 4 ) 2 . ,, This is also supported by the resonance at around −39.4 ppm in the 11 B NMR spectrum (Figure c) corresponding to the [BH 4 ] ̅ anion, ,, which is similar to the LiBH 4 (Figure S1). Here we point that the failed detection of Mg­(BH 4 ) 2 in the XRD pattern may be due to the poor crystallinity of the in situ formed Mg­(BH 4 ) 2 , consistent with previous studies where ball milling resulted in the formation of amorphous Mg­(BH 4 ) 2 . ,− …”

Facile regeneration of lithium borohydride from anhydrous lithium metaborate using magnesium hydride

“…2c(3, 4) can be assigned to the intermediate [BOH 2 ] − . 23,34,35 The chemical shift ( δ ( 11 B)) of [BOH 2 ] − is towards the low value for the same reasons as described in the preceding paragraph. According to the XRD, FTIR, and NMR spectra results, it can be deduced that O 2− in LiBO 2 is step by step replaced by H − in MgH 2 forming LiBH 4 and MgO (Fig.…”

Effect of Metaborate Additive Modification on Hydrolysis Performance of MgH2

“…The milled and hydrolytic products were characterized by X-ray diffraction (XRD, Burker D8 advance, Cu Kα, 40 mA, 45 kV), Fourier transform infrared spectroscopy (FTIR, Nicolet IS10), and scanning electron microscopy (SEM, TESCAN GAIA3). More details of FTIR measurements can be found in our previous studies . For SEM observations, the as-milled products were first dispersed on electrically conducting adhesive tapes in an argon-filled glove box and stored in an airtight container.…”

“…More details of FTIR measurements can be found in our previous studies. 18 For SEM observations, the as-milled products were first dispersed on electrically conducting adhesive tapes in an argon-filled glove box and stored in an airtight container. The samples were then taken out and rapidly transferred into the SEM chamber to exhaust the gas.…”