Sulfur hexa-fluoride has been used as a etching gas in semiconductor industry. From the globally environmental issues, it is urgent to control the emissions of this significant greenhouse gas. The main objective of this experimental investigation was to find the effective catalyst for SF6 decomposition. The precursor catalyst of hexa-aluminate was prepared to investigate the catalytic activity and stability. The precursor catalyst of hexa-aluminate was modified with Ni to enhance the catalytic activities and stability. The catalytic activity for SF6 decomposition increased by the addition of Ni and maximized at 6wt% addition of Ni. The addition of 6wt% Ni in precursor catalyst of hexa-aluminate improved the resistant to the HF and reduced the crystallization and phase transition of catalyst.

Abstract
 1. 서 론
 2. 재료 및 방법
  2.1. 촉매 제조
  2.2. 촉매 성능평가
  2.3. 촉매 특성 분석
 3. 결과 및 고찰
  3.1. SF6 전환율 평가 결과
  3.2. 촉매 특성 분석 결과
 4. 결 론
 참 고 문 헌

• 황철원((주)코아에프앤티) | Cheol-Won Hwang (COA F&T Corporation)
• 최금찬(동아대학교 환경공학과) | Kum-Chan Choi (Department of Environmental Engineering, Dong-A University) Corresponding author