Synthesis of ZnAl2O4 Nanotube by Interfacial Solid State Reaction : Synthesis of Metal Nitrides Supported on Silica Microspheres
- 발행기관 서강대학교 일반대학원
- 지도교수 허남회
- 발행년도 2011
- 학위수여년월 2011. 2
- 학위명 석사
- 학과 및 전공 일반대학원 화학과
- 실제URI http://www.dcollection.net/handler/sogang/000000046403
- 저작권 서강대학교의 논문은 저작권 보호를 받습니다.
초록/요약
Part I. Abstract We have synthesized of ZnAl2O4 nanotubes(150nm diameter and micrometer length) by low-temperature interfacial solid state reaction. Filling pores in anodic aluminum oxide template(AAO) with a hygroscopic zinc precursor ZnCl2, annealed at 773K O2 atmosphere. At 773K, surface Al2O3 on AAO reacts with zinc precursor, yield to ZnAl2O4. Using NaOH, we successfully removed remaining AAO template and obtained ZnAl2O4 nanotube. We thoroughly characterized by powder X-ray diffraction, SEM, TEM, EDX. Part II. Abstract We report the synthesis of various metal nitride nanoparticles supported on mesoporous silica microspheres. Solid core and mesoporous shell silica spheres are prepared by modified Unger procedure. Using two immiscible solvents, metal precursors were incorporated into mesoporous silica microspheres, annealing at various temperature in ammonia atmosphere. Metal nitrides are characterized by powder X-ray Diffraction, TEM, EDX, XPS, BET and SQUID magnetometer.
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