A Study on the Cycling Effects and the Hydrogen Absorption-Desorption Characteristics Of Metal Hydrides (DiNi5-H2 system)

금속수소화물(DiNi5-H2 system)의 수소 흡수-방출 특성과 반복 효과에 관한 연구

  • Kim, Youn-Sang (Department of Chemical Engineering, Soong Sil University) ;
  • Zhoh, Choon-Koo (Department of Chemical Engineering, Soong Sil University)
  • 김연상 (숭실대학교 화학공학과) ;
  • 조춘구 (숭실대학교 화학공학과)
  • Received : 1990.08.01
  • Published : 1990.10.31

Abstract

This paper summarizes fundamental research on a metal hydrides for the development of new energy. We made a study of the characteristics of the hydrogen absorption-desorption of $DiNi_5$ alloys. As a result, we found that the maximum amount of the hydrogen absorption of $DiNi_5$ alloys (the maximum in the absorption equilibrium pressure section) was H/M=1.04 at $30^{\circ}C$. The hysteresis was the smallest at $30^{\circ}C$. The capability of the hydrogen absorption-desorption was excellent. The number of cycles of the hydrogen absorption-desorption was about 9000 times at $30^{\circ}C$. We found also that the rate of the hydrogen desorption was the largest at $40^{\circ}C$.

이 논문은 새로운 에너지 개방을 위한 금속수소화물에 대한 기초연구를 요약한 것이다. $DiNi_5$ 합금의 수소 흡수 및 탈착 특성을 조사하였다. $30^{\circ}C$에서 $DiNi_5$ 합금의 최대 수소흡착량은 H/M=1.04였고 $30^{\circ}C$에서 히스테리시스가 가장 작았다. 이 합금의 수소 흡 탈착 능은 우수하였다. $30^{\circ}C$에서 수소의 흡 탈착 반복회수는 약 9000번 정도 였으며, 수소 탈착속도는 $40^{\circ}C$에서 최대를 보였다.

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Acknowledgement

Supported by : 한국학술재단