Determination of the Activation Energy for Hydride Decomposition Using a Sieverts-Type Apparatus and the Kissinger Equation
Abstract
:1. Introduction
2. Materials and Methods
3. Results and Discussion
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Heating Rate Φ (K/min) | Onset Time (s) | Onset Temperature (K) | tm (s) | Tm (K) |
---|---|---|---|---|
3 | 6060 | 572.1 | 6780 | 590.0 |
6 | 3327 | 573.6 | 2510 | 596.3 |
9 | 2441 | 586.6 | 2570 | 606.3 |
12 | 1931 | 588.8 | 2180 | 612.5 |
15 | 1589 | 590.0 | 1856 | 613.0 |
Heating Rate Φ (K/min) | Tm (K) | ln (Φ/Tm2) | 1/Tm |
---|---|---|---|
3 | 590.0 | −11.6616 | 0.001695 |
6 | 596.3 | −10.9896 | 0.001677 |
9 | 606.3 | −10.6174 | 0.001649 |
12 | 612.5 | −10.3502 | 0.001633 |
15 | 613.0 | −10.1287 | 0.001631 |
Sample | Composition | Preparation Condition | Analysis Method | Activation Energy (kJ/mol) | Reference |
---|---|---|---|---|---|
commercial MgH2 | MgH2 | Kissinger plot | 195 | [1] | |
ball-milled MgH2 with graphite | 0.3 g MgH2 + 2 g graphite | ball milling | Kissinger plot | 165 | [1] |
infiltrated MgH2/ACF (activated carbon fiber) composite | 0.3 g MgH2 + 2 g ACF | infiltration | Kissinger plot | 143 | [1] |
MgH2 (without oxide) | MgH2 | Kissinger plot | 174 | [2] | |
MgH2 + 4 mol% Nb2O5 | 96 mol% MgH2 + 4 mol% Nb2O5 | ball milling | Kissinger plot | 95 | [2] |
MgH2 + 4 mol% Fe3O4 | 96 mol% MgH2 + 4 mol% Fe3O4 | ball milling | Kissinger plot | 108 | [2] |
MgH2 + 4 mol% ZrO2 | 96 mol% MgH2 + 4 mol% ZrO2 | ball milling | Kissinger plot | 113 | [2] |
MgH2 + 4 mol% CeO2 | 96 mol% MgH2 + 4 mol% CeO2 | ball milling | Kissinger plot | 140 | [2] |
MgH2 | MgH2 | ball milling waste magnesium with tetrahydrofuran (THF) | Doyle and Kissinger non-isothermal kinetic models | 255 | [3] |
MgH2 | MgH2 | ball milling waste magnesium with NaCl | Doyle and Kissinger non-isothermal kinetic models | 256 | [3] |
as-received MgH2 | MgH2 | Kissinger plot | 213 | [4] | |
ball-milled MgH2 | MgH2 | ball milling | Kissinger plot | 138 | [4] |
MgH2/LiCl mixture | ball milling after treatment with tetrahydrofuran (THF) | Kissinger plot | 115 | [4] | |
as-milled MgH2 | MgH2 | milling | Kissinger plot | 142 | [5] |
MgH2 + 20 wt% PdCl2 | 80 wt% MgH2 + 20 wt% PdCl2 | milling with PdCl2 | Kissinger plot | 99 | [5] |
commercial MgH2 | MgH2 | Friedman method | 240 | [16] | |
Mg–5Ni | 95 wt% Mg + 5 wt% Ni | milling in hydrogen | Kissinger plot | 174 | this work |
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Song, M.-Y.; Kwak, Y.-J. Determination of the Activation Energy for Hydride Decomposition Using a Sieverts-Type Apparatus and the Kissinger Equation. Metals 2022, 12, 265. https://doi.org/10.3390/met12020265
Song M-Y, Kwak Y-J. Determination of the Activation Energy for Hydride Decomposition Using a Sieverts-Type Apparatus and the Kissinger Equation. Metals. 2022; 12(2):265. https://doi.org/10.3390/met12020265
Chicago/Turabian StyleSong, Myoung-Youp, and Young-Jun Kwak. 2022. "Determination of the Activation Energy for Hydride Decomposition Using a Sieverts-Type Apparatus and the Kissinger Equation" Metals 12, no. 2: 265. https://doi.org/10.3390/met12020265