TY - GEN
T1 - Electrochemical charge for the formation of metal hydrides from LiH+M (M = Mg, Al)
AU - Hanada, Nobuko
AU - Kamura, Akito
AU - Suzuki, Hiroshi
AU - Ichikawa, Takayuki
AU - Kojima, Yoshitsugu
AU - Takai, Kenichi
PY - 2010
Y1 - 2010
N2 - For a formation of metal hydride of MgH2 or AlH3 under room temperature and ambient pressure, the cathode electrodes of metal and lithium hydride are electrochemically charged with Li anode electrodes in the system of Li-ion extraction. For MgH2 formation, the VC (Voltage-Composition) curve of Mg + 2LiH during charge shows a plateau voltage at 0.6 V until the final composition of 1.05 Li extraction. After charging MgH2 phase is observed by the XRD measurement. Therefore MgH 2 is produced by the electrochemical charge from Mg and LiH. For AlH3 formation, Al + 3LiH is charged until the final composition of 0.6 Li at a plateau voltage of 0.8 V which corresponds to the reaction between Al and LiH for the formation of AlH3. In the XRD profile after charging AlH3 phase is not detected although the intensities of Al and LiH decrease compared with these before charging, which suggests the reaction leading to the formation of AlH3.
AB - For a formation of metal hydride of MgH2 or AlH3 under room temperature and ambient pressure, the cathode electrodes of metal and lithium hydride are electrochemically charged with Li anode electrodes in the system of Li-ion extraction. For MgH2 formation, the VC (Voltage-Composition) curve of Mg + 2LiH during charge shows a plateau voltage at 0.6 V until the final composition of 1.05 Li extraction. After charging MgH2 phase is observed by the XRD measurement. Therefore MgH 2 is produced by the electrochemical charge from Mg and LiH. For AlH3 formation, Al + 3LiH is charged until the final composition of 0.6 Li at a plateau voltage of 0.8 V which corresponds to the reaction between Al and LiH for the formation of AlH3. In the XRD profile after charging AlH3 phase is not detected although the intensities of Al and LiH decrease compared with these before charging, which suggests the reaction leading to the formation of AlH3.
UR - http://www.scopus.com/inward/record.url?scp=77957814996&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77957814996&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:77957814996
SN - 9781617387661
T3 - Materials Research Society Symposium Proceedings
SP - 105
EP - 110
BT - Hydrogen Storage Materials
T2 - 2009 MRS Fall Meeting
Y2 - 30 November 2009 through 4 December 2009
ER -