Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Synthesis of Porous Cu-ZnO Composite Sphere and CO Oxidation Property

기공성 Cu-ZnO 복합 구형 산화물의 합성 및 CO 산화반응 특성

  • Park, Jung-Nam (Department of Chemistry, BK21 School of Chemical Materials Science, Department of Energy Science and SKKU Advanced Institute of Nanotechnology, Sungkyunkwan University) ;
  • Hwang, Seong-Hee (Department of Chemistry, BK21 School of Chemical Materials Science, Department of Energy Science and SKKU Advanced Institute of Nanotechnology, Sungkyunkwan University) ;
  • Jin, Mingshi (Department of Chemistry, BK21 School of Chemical Materials Science, Department of Energy Science and SKKU Advanced Institute of Nanotechnology, Sungkyunkwan University) ;
  • Shon, Jeong-Kuk (Department of Chemistry, BK21 School of Chemical Materials Science, Department of Energy Science and SKKU Advanced Institute of Nanotechnology, Sungkyunkwan University) ;
  • Kwon, Sun-Sang (Department of Chemistry, BK21 School of Chemical Materials Science, Department of Energy Science and SKKU Advanced Institute of Nanotechnology, Sungkyunkwan University) ;
  • Boo, Jin-Hyo (Department of Chemistry, BK21 School of Chemical Materials Science, Department of Energy Science and SKKU Advanced Institute of Nanotechnology, Sungkyunkwan University) ;
  • Kim, Ji-Man (Department of Chemistry, BK21 School of Chemical Materials Science, Department of Energy Science and SKKU Advanced Institute of Nanotechnology, Sungkyunkwan University)
  • 박중남 (성균관대학교 화학과, 에너지과학과, 성균나노과학기술원) ;
  • 황성희 (성균관대학교 화학과, 에너지과학과, 성균나노과학기술원) ;
  • 김명실 (성균관대학교 화학과, 에너지과학과, 성균나노과학기술원) ;
  • 손정국 (성균관대학교 화학과, 에너지과학과, 성균나노과학기술원) ;
  • 권순상 (성균관대학교 화학과, 에너지과학과, 성균나노과학기술원) ;
  • 부진효 (성균관대학교 화학과, 에너지과학과, 성균나노과학기술원) ;
  • 김지만 (성균관대학교 화학과, 에너지과학과, 성균나노과학기술원)
  • Received : 2010.02.11
  • Accepted : 2010.03.10
  • Published : 2010.06.10
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Abstract

In this study, porous ZnO sphere and Cu-ZnO composite were synthesized by coprecipitation method in diethylene glycol solvent. The physicochemical properties of as-prepared composite materials were characterized by SEM, XRD, $N_2$-sorption and $H_2$-TPR. A series of porous Cu-ZnO with different Cu contents (0, 6.6, 21.3, 36.4, 54.6, 77.8 wt%) was investigated for CO oxidation activity in a fixed bed reactor system. With increasing Cu content in Cu-ZnO the surface area and micropore volume of Cu-ZnO are decreased and Cu (36.4 wt%)-ZnO shows higher activity for CO oxidation compared to the others.

본 연구에서는 다이에틸렌글리콜 용매 상에서 공침법을 이용하여 기공성 아연 구형 산화물과 구리-아연 복합 산화물을 합성하였다. 합성된 물질들의 물리화학적 특성은 전자현미경, X-선 회절분석, $N_2$ 흡착, $H_2$-TPR 방법을 통하여 분석되었고, 다양한 Cu 함량(0, 6.6, 21.3 36.4, 54.6, 77.8 wt%)을 포함한 Cu-ZnO 복합 산화물을 고정층 반응 장치에서 일산화탄소 산화 반응성을 고찰하였다. 합성된 산화물 중에서 Cu 함량이 증가할수록 Cu-ZnO의 비표면적과 미세 기공 부피는 감소하였으며, Cu (36.4 wt%)-ZnO이 가장 좋은 일산화탄소 산화 반응성을 나타내었다.

Keywords

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