Size and size distribution balance the dispersion of colloidal CeO2 nanoparticles in organic solvents

被引：22

作者：

Arita, Toshihiko ^{[1
]}

Yoo, Jungwoo ^{[1
]}

Ueda, Yu ^{[1
]}

Adschiri, Tadafumi ^{[2
]}

机构：

[1] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Aoba Ku, Sendai, Miyagi 9808577, Japan

[2] Tohoku Univ, WPI Res Ctr, Adv Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan

来源：

NANOSCALE | 2010年 / 2卷 / 05期

关键词：

HYDROTHERMAL SYNTHESIS; CERIA NANOCRYSTALS; STABILIZATION; PARTICLES; DENSITY;

D O I：

10.1039/b9nr00395a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Colloidal CeO2 nanoparticles (HNPs) stabilized with a decanoic fatty acid self-assembled monolayer (SAM) (decHNPs) showed very good dispersibility, i.e., perfect dispersion in cyclohexane up to 20 wt%. However, the HNPs stabilized with a dodecanoic acid SAM (dodHNPs) did not show good dispersion, i.e., at most 0.2 wt%. Interestingly, when we mixed equal portions of 5 wt% decHNPs in cyclohexane and 2 wt% dodHNPs in cyclohexane, the mixture showed much better dispersion than 1 wt% of dodHNPs in cyclohexane. This might indicate that the size and size distribution of the major components of the HNP solution are the most dominant factors for determining the dispersibility of HNPs in solution.

引用

页码：689 / 693

页数：5

共 19 条

[1] Supercritical hydrothermal synthesis of organic-inorganic hybrid nanoparticles [J].