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Improvement of Mg-based Hydrogen Storage Alloys by Mechanochemical Ball Milling

기계화학적 볼밀링을 이용한 Mg 합금의 수소저장능 향상 연구

  • 안중호 (안동대학교 신소재공학부) ;
  • 최영묵 (안동대학교 신소재공학부)
  • Published : 2002.04.01

Abstract

The mechanochemical milling of Mg and $Mg_2Ni$ alloys were carried out to examine the enhancement of hydrogen storage properties of Mg alloys. The hydroge characteristics of the ball-milled products were evaluated with a Sievert-type apparatus and electrochemical test. Various intermediate compounds were obtained by chemical reactions induced during the ball milling of Mg of $Mg_2Ni$ alloys with C, Ni, $Ni_2Cl$ and $Ca_2Cl$. The system of $Mg_2Ni$ with 10 wt% C improved markedly the kinetics of hydrogen absorption, while the hydrogen capacities were practically unchanged. The hydrogen storage alloys such as Mg-Ca can be successfully.

Keywords

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