Reductive Deposition of Ni-Zn Nanoparticles Selectively on TiO2 Fine Particles in the Liquid Phase
Reductive Deposition of Ni-Zn Nanoparticles Selectively on TiO2 Fine Particles in the Liquid Phase
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Ni-Zn 纳米颗粒在液相中选择性还原沉积在 TiO2 细颗粒上
DOI：
10.2320/matertrans.44.2414
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发表时间：
2003
影响因子：
1.2
通讯作者：
A. Muramatsu
中科院分区：
文献类型：
--
作者：
Hideyuki Takahashi;Y. Sunagawa;Sarantuya Myagmarjav;Katsutoshi Yamamoto;N. Sato;A. Muramatsu
本文提出了一种新的金属纳米颗粒合成方法，通过液相还原，将具有非晶状结构的金属Ni纳米颗粒选择性沉积在TiO2细颗粒上。锌的加入减小了纳米颗粒的尺寸，导致催化活性Ni表面的总面积增加。此外，纳米颗粒在TiO2上的沉积具有很高的稳定性，因此添加锌的TiO2负载的Ni纳米颗粒（Ni- zn /TiO2）在1-辛烯加氢中的催化活性比未负载的Ni纳米颗粒高约10倍。
A novel metal nanoparticle synthesis method has been developed, in which metallic Ni nanoparticles with an amorphous-like structure were selectively deposited on TiO2 fine particles through the reduction from the liquid phase. The addition of Zn proved to decrease the nanoparticles size, leading to the increase in the total area of catalytically active Ni surface. In addition, nanoparticles were highly stabilized by the deposition on TiO2, so that the catalytic activity of Zn-added TiO2-supported Ni nanoparticles (Ni-Zn/TiO2) in the 1-octene hydrogenation was ca. 10 times higher than that of unsupported Ni nanoparticles.