Hydrogen adsorption/desorption phenomena on ball-milled dolomites under a hydrogen treatment

被引：0
|
作者：
Masunaga, Haruka [1 ]
Komatsu, Keiji [1 ]
Nakamura, Atsushi [1 ,2 ]
Nambu, Keiki [3 ]
Saitoh, Hidetoshi [1 ]
机构：
[1] Nagaoka Univ Technol, Dept Mat Sci & Bioengn, 1603 Kamitomioka, Nagaoka, Niigata 9402188, Japan
[2] Chubu Chelest, 3-3-3 Hinagahigashi, Yokaichi, Mie 5100886, Japan
[3] ACCHE Corp, 1-16-16 Toranomon,Minaton Ku Toranomon 1 Chome MG, Tokyo 1050001, Japan
来源：
MATERIALS CHEMISTRY AND PHYSICS | 2024年 / 323卷
关键词：
Dolomite; Hydrogen adsorption/desorption; High-pressure treatment in a hydrogen; atmosphere; Ball-milling; CA; MG; MECHANOCHEMISTRY; REMOVAL;
D O I：
10.1016/j.matchemphys.2024.129540
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Dolomites are one of the carbonates. In this study, we investigate hydrogen adsorption/desorption phenomena on dolomites. Five types of dolomites were prepared as starting materials. In addition, ball-milling treatment under a hydrogen atmosphere was conducted to improve these phenomena. Dolomite structures were identified for all samples, not hydrates such as MgH2. Their adsorption forms were found to be of type II as per IUPAC classification. As a result, the specific surface area (SBET) of the dolomites was increased by the ball-milling. The amounts of hydrogen released were 86-199 ppm measured by gas chromatography. These amounts are intended to increase by milling the rotation rate.
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页数：8
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