Water bathing synthesis of high-surface-area nanocrystal-assembled SnO2 particles
- 作者：Yoshitake Masuda ; masuda-y@aist.go.jp ; Tatsuki Ohji ; Kazumi Kato
- 关键词：Tin oxide ; SnO2 ; Nanocrystal ; Nanoparticle ; Nanomaterial ; Aqueous solution
- 刊名：Journal of Solid State Chemistry
- 出版年：2012
- 期刊代码：130_00224596
- 类别：ch
- 出版时间：May, 2012
- 卷：189
- 期：Complete
- 页码：21-24
- 文件大小：781 K
摘要
Nanocrystal assembled SnO2 particles were synthesized in aqueous solutions. The particles showed high BET surface area of 276 m2/g. It was much higher than that of our previous studies. BJH analyses indicated that the particles had pores of about 2-5 nm. The particles included two kinds of morphologies. The first particles were about 300-1000 nm in diameter, which were assemblies of acicular crystals of 5-10 nm in width and 100-200 nm in length. They contributed high BET surface area. The second particles were about 10,000-3000 nm in diameter, which were assemblies of ellipse crystals of 100-200 in width and 200-400 nm in length. The ellipse crystals consisted of sheet crystals. They connected with a certain angle and arranged their long direction parallel.