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A mechanism of ultraviolet activation of the α-AlH3 decomposition. / Gabis, I. E.; Baraban, A. P.; Kuznetsov, V. G.; Elets, D. I.; Dobrotvorskii, M. A.; Voyt, A. P.

In: International Journal of Hydrogen Energy, Vol. 39, No. 28, 2014, p. 15844-15850.

Research output: Contribution to journal › Article

Harvard

Gabis, IE, Baraban, AP, Kuznetsov, VG, Elets, DI, Dobrotvorskii, MA & Voyt, AP 2014, 'A mechanism of ultraviolet activation of the α-AlH3 decomposition', International Journal of Hydrogen Energy, vol. 39, no. 28, pp. 15844-15850. https://doi.org/10.1016/j.ijhydene.2014.07.154

APA

Gabis, I. E., Baraban, A. P., Kuznetsov, V. G., Elets, D. I., Dobrotvorskii, M. A., & Voyt, A. P. (2014). A mechanism of ultraviolet activation of the α-AlH3 decomposition. International Journal of Hydrogen Energy, 39(28), 15844-15850. https://doi.org/10.1016/j.ijhydene.2014.07.154

Vancouver

Gabis IE, Baraban AP, Kuznetsov VG, Elets DI, Dobrotvorskii MA, Voyt AP. A mechanism of ultraviolet activation of the α-AlH3 decomposition. International Journal of Hydrogen Energy. 2014;39(28):15844-15850. https://doi.org/10.1016/j.ijhydene.2014.07.154

Author

Gabis, I. E. ; Baraban, A. P. ; Kuznetsov, V. G. ; Elets, D. I. ; Dobrotvorskii, M. A. ; Voyt, A. P. / A mechanism of ultraviolet activation of the α-AlH3 decomposition. In: International Journal of Hydrogen Energy. 2014 ; Vol. 39, No. 28. pp. 15844-15850.

BibTeX

@article{8adfa55ec9a24c218bc266d18d7bc79c,
title = "A mechanism of ultraviolet activation of the α-AlH3 decomposition",
abstract = "We investigated the mechanism of activation of α-AlH3 powder decomposition by irradiation with ultraviolet (UV) light using barometry, photoluminescence (PL), cathode luminescence (CL) and X-ray diffraction (XRD) methods. Exposing the samples under a mercury lamp through the filters we have shown that only the line, corresponding to the energy of 4.88 eV, leads to activation, whereas the spectral lines of lower energy are ineffective. XRD shows that after continued UV activation the aluminum clusters with metallic properties are formed on the surface of the AlH3 powder particles at room temperature. The analysis of results of performed calculations of the absorption spectrum of the perfect crystal α-AlH3 using DFT method showed that hydrogen vacancies are involved in activation by UV light. Studying of dynamics of CL and PL spectra at different UV expositions permitted to suggest the following mechanism of activation. Absorption of a photon implies that vacancy captures an electron from a neighboring hydrogen",
keywords = "Alane, Decomposition kinetics, UV activation, Electronic structure, Hydrogen vacancies, Luminescence",
author = "Gabis, {I. E.} and Baraban, {A. P.} and Kuznetsov, {V. G.} and Elets, {D. I.} and Dobrotvorskii, {M. A.} and Voyt, {A. P.}",
year = "2014",
doi = "10.1016/j.ijhydene.2014.07.154",
language = "English",
volume = "39",
pages = "15844--15850",
journal = "International Journal of Hydrogen Energy",
issn = "0360-3199",
publisher = "Elsevier",
number = "28",

}

RIS

TY - JOUR

T1 - A mechanism of ultraviolet activation of the α-AlH3 decomposition

AU - Gabis, I. E.

AU - Baraban, A. P.

AU - Kuznetsov, V. G.

AU - Elets, D. I.

AU - Dobrotvorskii, M. A.

AU - Voyt, A. P.

PY - 2014

Y1 - 2014

N2 - We investigated the mechanism of activation of α-AlH3 powder decomposition by irradiation with ultraviolet (UV) light using barometry, photoluminescence (PL), cathode luminescence (CL) and X-ray diffraction (XRD) methods. Exposing the samples under a mercury lamp through the filters we have shown that only the line, corresponding to the energy of 4.88 eV, leads to activation, whereas the spectral lines of lower energy are ineffective. XRD shows that after continued UV activation the aluminum clusters with metallic properties are formed on the surface of the AlH3 powder particles at room temperature. The analysis of results of performed calculations of the absorption spectrum of the perfect crystal α-AlH3 using DFT method showed that hydrogen vacancies are involved in activation by UV light. Studying of dynamics of CL and PL spectra at different UV expositions permitted to suggest the following mechanism of activation. Absorption of a photon implies that vacancy captures an electron from a neighboring hydrogen

AB - We investigated the mechanism of activation of α-AlH3 powder decomposition by irradiation with ultraviolet (UV) light using barometry, photoluminescence (PL), cathode luminescence (CL) and X-ray diffraction (XRD) methods. Exposing the samples under a mercury lamp through the filters we have shown that only the line, corresponding to the energy of 4.88 eV, leads to activation, whereas the spectral lines of lower energy are ineffective. XRD shows that after continued UV activation the aluminum clusters with metallic properties are formed on the surface of the AlH3 powder particles at room temperature. The analysis of results of performed calculations of the absorption spectrum of the perfect crystal α-AlH3 using DFT method showed that hydrogen vacancies are involved in activation by UV light. Studying of dynamics of CL and PL spectra at different UV expositions permitted to suggest the following mechanism of activation. Absorption of a photon implies that vacancy captures an electron from a neighboring hydrogen

KW - Alane

KW - Decomposition kinetics

KW - UV activation

KW - Electronic structure

KW - Hydrogen vacancies

KW - Luminescence

U2 - 10.1016/j.ijhydene.2014.07.154

DO - 10.1016/j.ijhydene.2014.07.154

M3 - Article

VL - 39

SP - 15844

EP - 15850

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

SN - 0360-3199

IS - 28

ER -

ID: 7009794