2010 Fiscal Year Final Research Report
Hydrogen storage of Mg-nanocomposites obtained by mechanical grinding.
| Project/Area Number |
20560782
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Energy engineering
|
|---|
| Research Institution | Yamaguchi University |
|---|
Principal Investigator |
IMAMURA Hayao Yamaguchi University, 大学院・理工学研究科, 教授 (60136166)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
SAKATA Yoshihisa 山口大学, 大学院・理工学研究科, 准教授 (40211263)
|
|---|
| Project Period (FY) |
2008 – 2010
|
| Keywords | 水素貯蔵 / マグネシウム / 複合化 / ボールミリング / 金属水素化物 |
|---|
| Research Abstract |
Hydrogen storage in Sn/MgH_2 and SiC/MgH_2 nanocomposites which are formed by ball milling of MgH_2 with Sn and SiC compounds has been studied. Upon formation of nanocomposite between MgH_2 and Sn (or SiC), the desorption properties (desorption temperature and enthalpy of dehydriding) of MgH_2 were significantly improved. For Sn/MgH_2, ball milling of MgH_2 and 17 at% Sn resulted in a lowering of the desorption temperature to 473 K. TDS (thermal desorption spectrometry), TG (thermogravimetry) and DSC (differential scanning calorimeter) measurements exhibited the existence of at least two types of hydrogen species in the Sn/MgH_2 nanocomposite; the one was hydrogen in the newly formed Sn/MgH_2 nanocomposite and the other hydrogen derived from MgH_2 remaining in Sn/MgH_2.
|
