Pt/$Al_2O_3$가 코팅된 니켈폼을 이용한 수소-공기 예혼합 기체의 촉매 연소

Catalytic combustion of $H_2$/Air mixture using Pt/$Al_2O_3$ coated nickel foam

  • 진정근 (한국과학기술원 항공우주공학과 대학원) ;
  • 권세진 (한국과학기술원 항공우주공학과)
  • 발행 : 2007.05.04

초록

A nickel foam, one of metal foams was seleced as a catalyst support instead of conventional ceramic materials. $Al_2O_3$ was coated on the surface of nickel foam to increase the surface area. $Al_2O_3$ coating process was based on sol-gel process. SEM image was obtained and $Al_2O_3$ coverage was confirmed. Combustion experiments were carried out using SUS combustor and $H_2$/air mixture. Temperatures were measured with different equivalence ratios and $H_2$ flow rates. $H_2$ conversion rates were calculated by the analysis of product gas using gas chromatography. Catalytic combustion of $H_2$ was complete and stable with Pt/$Al_2O_3$ coated nickel foam and influences of water vapor were confirmed during the beginning of combustion.

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