Eom, Kwang Sup Kwon, Jae Young Kim, Min Joong Kwon, Hyuk Sang 2024-01-20T16:30:53Z 2024-01-20T16:30:53Z 2021-09-05 2011-09 0959-9428 https://pubs.kist.re.kr/handle/201004/130011 On-board hydrogen production from the hydrolysis of Al in alkaline water has received great attention because it eliminates the need for hydrogen storage. The Al powder, though providing high reaction rate in the hydrolysis, causes a serious problem of explosive danger when in contact with air or moisture, etc. Since the hydrogen generation rate increases linearly with the corrosion rate of Al to Al3+, an Al-Fe alloy, in which an electrochemically noble Al3Fe phase precipitates along grain boundaries, is designed, and hence causes fast hydrogen generation from the hydrolysis of Al in alkaline water by combined action of galvanic and intergranular corrosion. The Al alloy containing 1 wt% Fe increases the hydrogen generation rate 3.7 times compared with that of pure Al, in which 65% of the increase is due primarily to the galvanic corrosion between Al and Al3Fe phase, and 35% due to the increase in reaction area by intergranular corrosion. English ROYAL SOC CHEMISTRY ALUMINUM-ALLOYS STORAGE GENERATION Design of Al-Fe alloys for fast on-board hydrogen production from hydrolysis Article 10.1039/c1jm11329a 1 JOURNAL OF MATERIALS CHEMISTRY, v.21, no.34, pp.13047 - 13051 JOURNAL OF MATERIALS CHEMISTRY 21 34 13047 13051 scie scopus 000293898300065 2-s2.0-80052074552 Chemistry, Physical Materials Science, Multidisciplinary Chemistry Materials Science Article ALUMINUM-ALLOYS STORAGE GENERATION Al-Fe alloys on-boad hydrogen production PEMFC