金属氢化物氢压缩器用Ti-Mn/Ti-Cr多元储氢合金  

Study on Ti-Mn/Ti-Cr Hydrogen Storage Alloys for Hydride Hydrogen Compressor

作　　者：王新华[1] 陈如柑[1] 李寿权[1] 陈立新[1] 葛红卫[1] 方国华[1] 陈长聘[1] 

机构地区：[1]浙江大学,浙江杭州310027

出　　处：《稀有金属材料与工程》2007年第12期2216-2219,共4页Rare Metal Materials and Engineering

基　　金："863"计划基金资助(2006AA05Z129)

摘　　要：根据金属氢化物的热力学特性,储氢合金可应用于热驱动化学氢压缩器。针对热驱动化学氢压缩器用储氢合金的要求,系统研究了Ti-Mn系和Ti-Cr系多元储氢合金的储氢性能,研究了Cr/Mn比,Fe部分取代Cr,Zr部分取代Ti以及A侧过化学计量对Ti-Mn系和Ti-Cr系多元储氢合金的储氢容量、吸放氢平台特性(包括压力、滞后和平台倾斜度等)、热力学性能、活化和动力学性能的影响,筛选出一对性能优良的储氢合金(Ti0.95Zr0.15)(Mn1.1Cr0.7V0.2)和(Ti0.95Zr0.07)(Cr1.4Mn0.4Fe0.1Cu0.1)分别作为两级热驱动化学氢压缩器的低压级和高压级合金。以此2合金设计制作了氢容量为50L的压缩器,以水作为热交换介质可将压力为2.5MPa氢气压缩到40MPa以上。According to the thermodynamic properties of metal hydride, hydrogen storage alloy （HSA） could be applied in metal hydride hydrogen compressor （MHHC）. According to the requirements for HSAs in MHHC, the hydrogen storage performances of Ti-Mn based and Ti-Cr based multicomponent alloys were studied in this paper. The influence of Cr/IVln ratio, partial substitutions of Fe for Cr, Zr for Ti, and overstoichiometry of A side on the hydrogen storage capacity, plateau characteristics, thermodynamic and kinetic properties of the aforesaid two series alloys were investigated. A pair of alloys with desirable performances, e.g. （Ti0.95Zr0.15）（MnHCr03V0.2） and （Ti0.95Zr0.07）（Crl.4Mn0.4Fe0.1Cu0.1）, was selected as the alloys for a double stage MHHC. With the alloys a compressor with 50 L hydrogen capacity was designed and manufactured, and it could compress the industrial grade hydrogen from 2.5 MPa to more than 40 MPa when only water was used as the heat exchange medium.

关 键 词：储氢合金 金属氢化物 氢 氢压缩器 

分 类 号：TG139.7[一般工业技术—材料科学与工程]