Globular Porous Nanoparticle Tin(IV) Phenylphosphonates and Mixed Methyl Phenylphosphonates
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- 作者：Jin Huang ; Ayyappan Subbiah ; David Pyle ; Adam Rowland ; Brentley Smith ; Abraham Clearfield
- 刊名：Chemistry of Materials
- 出版年：2006
- 出版时间：October 31, 2006
- 年：2006
- 卷：18
- 期：22
- 页码：5213 - 5222
- 全文大小：514K
- 年卷期：v.18,no.22(October 31, 2006)
- ISSN：1520-5002
文摘
Hydrothermal synthesis of Sn(O3PC6H5)2 yields globular aggregates of nanoparticles that are layered.The particle size depends upon the time and temperature of hydrothermal treatment but may be as smallas 20 nm in the lateral directions and three or four layers thick. Because of their small size, the particlesform globules within which the particles form "house of cards" type pores. Surface areas as high as 300m2/g are common with pores in the micropore range. Tin(IV) methylphosphonate is also layered, but theparticles tend to aggregate into rosettes. Mixed derivatives of the type Sn(O3PC6H5)x(O3PCH3)2-x, wherex > 0.5, also form globules, with higher surface areas than the tin phenylphosphonates. The formationof these spherical aggregates appears to be general for tin(IV) phosphonates as a result of a lack ofparticle growth.