Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Effects of Process Variables on the Growth of Dendrite in the Electrochemical Alane(AlH3) Production Process

전기화학적 알레인(AlH3) 제조 공정에서 덴드라이트의 성장에 미치는 공정 변수 영향

  • KIM, HYOSUB (Department of Chemical Engineering and Applied Chemistry, Chungnam National University) ;
  • PARK, HYUNGYU (Department of Chemical Engineering and Applied Chemistry, Chungnam National University) ;
  • PARK, CHUSIK (Hydrogen Energy Research Center, Korea Institute of Energy Research) ;
  • BAE, KIKWANG (Hydrogen Energy Research Center, Korea Institute of Energy Research) ;
  • KIM, YOUNGHO (Department of Chemical Engineering and Applied Chemistry, Chungnam National University)
  • 김효섭 (충남대학교 응용화학공학과) ;
  • 박현규 (충남대학교 응용화학공학과) ;
  • 박주식 (한국에너지기술연구원 수소연료전지연구단) ;
  • 배기광 (한국에너지기술연구원 수소연료전지연구단) ;
  • 김영호 (충남대학교 응용화학공학과)
  • Received : 2015.11.13
  • Accepted : 2015.12.30
  • Published : 2015.12.30
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Abstract

Electrochemical alane ($AlH_3$) production process can be provided as a synthesis route which close a reversible cycle. In this study, growth inhibition of dendrite as key issues in this process was investigated. Main cause of dendrite growth was because Al fine powder separated in consumption process of Al electrode was moved to Pd electrode. In an effort to avoid this, use of glass block with uniform holes was the most effective to inhibit the amount of dendrite to that of $AlH_3$. Furthermore, effects of Al electrode (anode) type and electrolyte concentration were investigated and the optimal condition for inhibiting dendrite formation was proposed.

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References

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