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Quantitative and Qualitative Analysis of Hydrogen Accumulation in Hydrogen-Storage Materials Using Hydrogen Extraction in an Inert Atmosphere
- Source :
- Metals, Vol 8, Iss 9, p 672 (2018), Metals, Volume 8, Issue 9
- Publication Year :
- 2018
- Publisher :
- MDPI AG, 2018.
-
Abstract
- Currently, standard samples with high hydrogen concentrations that meet the requirements of hydrogen extraction in an inert atmosphere are not currently available on the market. This article describes the preparation of Ti-H standard samples and the calibration of RHEN602, a hydrogen analyzer, using LECO (LECO, Saint Joseph, MI, USA). Samples of technically pure titanium alloy were chosen as the material for sample production. The creation procedure includes five main steps: sample preparation (polishing to an average roughness of 0.04 &mu<br />m using sandpaper), annealing, hydrogenation, maintenance in an inert gas atmosphere, and characterization of the samples. The absolute hydrogen concentration in the samples was determined by two methods: volumetric and mass change after the introduction of hydrogen. Furthermore, in-situ X-ray diffraction, temperature programmed desorption (TPD) analysis, and thermogravimetric analysis were used during measurements to investigate the phase transitions in the samples. As a result of this work, a series of calibration samples were prepared in a concentration range up to 4 wt % hydrogen, optimal parameters for measuring high concentrations of hydrogen. The calibration line was obtained and the calibration error was 10%.
- Subjects :
- lcsh:TN1-997
Thermogravimetric analysis
Materials science
titanium alloy
Hydrogen
Thermal desorption spectroscopy
Analytical chemistry
standard samples
chemistry.chemical_element
02 engineering and technology
Hydrogen storage
0502 economics and business
General Materials Science
Sample preparation
050207 economics
Hydrogen analyzer
Inert gas
lcsh:Mining engineering. Metallurgy
05 social sciences
Extraction (chemistry)
Metals and Alloys
021001 nanoscience & nanotechnology
RHEN602 by LECO
chemistry
hydrogen
0210 nano-technology
Subjects
Details
- Language :
- English
- ISSN :
- 20754701
- Volume :
- 8
- Issue :
- 9
- Database :
- OpenAIRE
- Journal :
- Metals
- Accession number :
- edsair.doi.dedup.....6d681d74047072c4dbb040a002ccb62d