CAJ | 학술논문

采用溶胶-凝胶法制备了氧化锡纳米晶包覆的碳纳米管.自由Sn4+离子从稳定的Sn柠檬酸配合物中缓慢释放出来,迁移到碳纳米管上,并在碳纳米管上沉积形成了SnO2纳米晶,沉积过程完全为异相成核方式,在碳纳米管外并没有发现单独的SnO2纳米晶.这种溶胶-凝胶方法还可以用来制备无氯离子污染的、低团聚的纯SnO2纳米晶.
채용용효-응효법제비료양화석납미정포복적탄납미관.자유Sn4+리자종은정적Sn저몽산배합물중완만석방출래,천이도탄납미관상,병재탄납미관상침적형성료SnO2납미정,침적과정완전위이상성핵방식,재탄납미관외병몰유발현단독적SnO2납미정.저충용효-응효방법환가이용래제비무록리자오염적、저단취적순SnO2납미정.
The free Sn4+ ions are released from the stable Sn-CA complexes and migrate to the surface of the carbon nanotubes to form SnO2 nanocrystals by heterogeneous nucleation in a well controllable manner. No SnO2 nanocrystals are observed away from the carbon nanotubes. The sol-gel method in this work can also be utilized to synthesize pure SnO2 nanocrystals with low degree of agglomeration.