Effect of Thermal Treatment of Aluminum Core-Shell Particles on Their Oxidation Kinetics in Water for Hydrogen Production

The effect of thermal treatment of aluminum core-shell particles on their oxidation kinetics in water for hydrogen production was investigated. The samples were obtained by dividing dried aluminum powder, partially oxidized by distilled water, into eight portions, which were thermally treated at tem...

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Autores principales:	Olesya A. Buryakovskaya, Mikhail S. Vlaskin, Anatoly V. Grigorenko
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	hydrogen core-shell particles aluminum thermal treatment oxidation kinetics Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/787b22af2e9c4dd7a3f2362312effd66
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spelling	oai:doaj.org-article:787b22af2e9c4dd7a3f2362312effd662021-11-11T18:04:02ZEffect of Thermal Treatment of Aluminum Core-Shell Particles on Their Oxidation Kinetics in Water for Hydrogen Production10.3390/ma142164931996-1944https://doaj.org/article/787b22af2e9c4dd7a3f2362312effd662021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6493https://doaj.org/toc/1996-1944The effect of thermal treatment of aluminum core-shell particles on their oxidation kinetics in water for hydrogen production was investigated. The samples were obtained by dividing dried aluminum powder, partially oxidized by distilled water, into eight portions, which were thermally treated at temperatures of 120, 200, 300, 400, 450, 500, 550 and 600 °C. Alumina shell cracking at 500–600 °C enhances hydrogen generation due to uncovering of the aluminum cores, while sharp thickening of the protective oxide film on the uncovered aluminum surfaces at 550–600 °C significantly reduces reactivity of the core-shell particles. For these reasons, after reaction with distilled water at 90 °C for two hours, the highest hydrogen yield (11.59 ± 1.20)% was obtained for the sample thermally treated at 500 °C , while the yield for aluminum core-shell powder without heat treatment was only (5.46 ± 0.13)%. Another set of experiments employed multiple consecutive cycles of alternating oxidation by water and thermal treatment at 500 °C of the same powder sample. As predicted, the hydrogen yield gradually decreased with each subsequent experiment. The series of six cycles resulted in a total hydrogen yield of 53.46%.Olesya A. BuryakovskayaMikhail S. VlaskinAnatoly V. GrigorenkoMDPI AGarticlehydrogencore-shell particlesaluminumthermal treatmentoxidation kineticsTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6493, p 6493 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	hydrogen core-shell particles aluminum thermal treatment oxidation kinetics Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	hydrogen core-shell particles aluminum thermal treatment oxidation kinetics Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Olesya A. Buryakovskaya Mikhail S. Vlaskin Anatoly V. Grigorenko Effect of Thermal Treatment of Aluminum Core-Shell Particles on Their Oxidation Kinetics in Water for Hydrogen Production
description	The effect of thermal treatment of aluminum core-shell particles on their oxidation kinetics in water for hydrogen production was investigated. The samples were obtained by dividing dried aluminum powder, partially oxidized by distilled water, into eight portions, which were thermally treated at temperatures of 120, 200, 300, 400, 450, 500, 550 and 600 °C. Alumina shell cracking at 500–600 °C enhances hydrogen generation due to uncovering of the aluminum cores, while sharp thickening of the protective oxide film on the uncovered aluminum surfaces at 550–600 °C significantly reduces reactivity of the core-shell particles. For these reasons, after reaction with distilled water at 90 °C for two hours, the highest hydrogen yield (11.59 ± 1.20)% was obtained for the sample thermally treated at 500 °C , while the yield for aluminum core-shell powder without heat treatment was only (5.46 ± 0.13)%. Another set of experiments employed multiple consecutive cycles of alternating oxidation by water and thermal treatment at 500 °C of the same powder sample. As predicted, the hydrogen yield gradually decreased with each subsequent experiment. The series of six cycles resulted in a total hydrogen yield of 53.46%.
format	article
author	Olesya A. Buryakovskaya Mikhail S. Vlaskin Anatoly V. Grigorenko
author_facet	Olesya A. Buryakovskaya Mikhail S. Vlaskin Anatoly V. Grigorenko
author_sort	Olesya A. Buryakovskaya
title	Effect of Thermal Treatment of Aluminum Core-Shell Particles on Their Oxidation Kinetics in Water for Hydrogen Production
title_short	Effect of Thermal Treatment of Aluminum Core-Shell Particles on Their Oxidation Kinetics in Water for Hydrogen Production
title_full	Effect of Thermal Treatment of Aluminum Core-Shell Particles on Their Oxidation Kinetics in Water for Hydrogen Production
title_fullStr	Effect of Thermal Treatment of Aluminum Core-Shell Particles on Their Oxidation Kinetics in Water for Hydrogen Production
title_full_unstemmed	Effect of Thermal Treatment of Aluminum Core-Shell Particles on Their Oxidation Kinetics in Water for Hydrogen Production
title_sort	effect of thermal treatment of aluminum core-shell particles on their oxidation kinetics in water for hydrogen production
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/787b22af2e9c4dd7a3f2362312effd66
work_keys_str_mv	AT olesyaaburyakovskaya effectofthermaltreatmentofaluminumcoreshellparticlesontheiroxidationkineticsinwaterforhydrogenproduction AT mikhailsvlaskin effectofthermaltreatmentofaluminumcoreshellparticlesontheiroxidationkineticsinwaterforhydrogenproduction AT anatolyvgrigorenko effectofthermaltreatmentofaluminumcoreshellparticlesontheiroxidationkineticsinwaterforhydrogenproduction
_version_	1718431951515287552

Effect of Thermal Treatment of Aluminum Core-Shell Particles on Their Oxidation Kinetics in Water for Hydrogen Production

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