Hydrolytic Hydrogen Production on Al-Sn-Zn Alloys Processed by High-Pressure Torsion

被引：23
作者：
Zhang, Fan [1 ]
Edalati, Kaveh [2 ]
Arita, Makoto [3 ]
Horita, Zenji [2 ,3 ]
机构：
[1] Shanghai Univ Engn Sci, Sch Mat Engn, Shanghai 201620, Peoples R China
[2] Kyushu Univ, Int Inst Carbon Neutral Energy Res WPI I2CNER, WPI, Fukuoka, Fukuoka 8190395, Japan
[3] Kyushu Univ, Fac Engn, Dept Mat Sci & Engn, Fukuoka, Fukuoka 8190395, Japan
来源：
MATERIALS | 2018年 / 11卷 / 07期
关键词：
hydrogen production; ultrafine-grained (UFG) structure; high-pressure torsion (HPT); severe plastic deformation (SPD); hydrolysis; ELECTROCHEMICAL-BEHAVIOR; MICROSTRUCTURAL EVOLUTION; MECHANICAL-PROPERTIES; CHLORIDE SOLUTIONS; GRAIN-REFINEMENT; GENERATION; ALUMINUM; WATER; CORROSION; MG;
D O I：
10.3390/ma11071209
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Aluminium-tin-based alloys with different compositions were synthesized by a high-pressure torsion (HPT) method. The effect of different alloying elements and processing routes on the hydrogen generation performance of the alloys was investigated. The results show that Zn can enhance the hydrogen generation rate and yield by promoting pitting corrosion. The highest reactivity in water was achieved for an Al-30wt %Sn-10wt %Zn alloy. Detailed analysis of the Al-30wt %Sn-10wt %Zn alloy shows that increasing the shear strain and the resultant formation of ultrafine grains and phase mixing enhance the hydrogen generation rate through the effects of both nanogalvanic cells and pitting corrosion.
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页数：18
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