Premium
Preparation of Ni/TiO 2 Nanoparticles and Their Catalytic Performance on the Thermal Decomposition of Ammonium Perchlorate
Author(s) -
Li Cheng,
Ma Zhenye,
Zhang Lixiong,
Qian Renyuan
Publication year - 2009
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.200990312
Subject(s) - ammonium perchlorate , high resolution transmission electron microscopy , thermal decomposition , thermogravimetry , nanoparticle , chemistry , catalysis , chemical engineering , scanning electron microscope , differential thermal analysis , dispersion (optics) , transmission electron microscopy , inorganic chemistry , inductively coupled plasma , nuclear chemistry , materials science , diffraction , organic chemistry , composite material , physics , plasma , optics , quantum mechanics , engineering
Metal/oxide nanoparticles are attractive because of their special structure and better properties. The Ni/TiO 2 nanoparticles were prepared by a liquid phase chemical reduction method in this paper. The obtained‐products were characterized by inductively coupled plasma (ICP), X‐ray diffraction (XRD), high‐resolution transmission electron microscopy (HRTEM) and scanning electron microscopy (SEM). The results show that Ni particles in Ni/TiO 2 nanoparticles exhibit better dispersion and the size of most Ni particles is 10 nm or so. The catalytic activity of Ni/TiO 2 nanoparticles on the thermal decomposition of ammonium perchlorate (AP) was investigated by simultaneous thermogravimetry and differential thermal analysis (TG‐DTA). Results show that composite process of Ni and TiO 2 can improve the catalytic activity of Ni nanoparticles on the thermal decomposition of AP, which is mainly attributed to the improvement of Ni dispersion in Ni/TiO 2 nanoparticles. The catalytic activity of Ni/TiO 2 nanoparticles increases with increasing the weight ratio of Ni to AP.