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Assembly of Centimeter Long Silica Coated FePt Colloid Crystals with Tailored Interstices by Magnetic Crystallization
Authors:
Shik Chi
Tsang
(University of Oxford)
,
Chih H.
Yu
(Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University)
,
Huili
Tang
(Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University)
,
Heyong
He
(Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University)
,
Valeria
Castelletto
(University of Reading)
,
Theyencheri
Narayanan
(ESRF)
,
Chester C. H.
Lo
(Iowa State University)
,
Kin
Tam
(AstraZeneca)
,
Ian W.
Hamley
(University of Reading)
Co-authored by industrial partner:
Yes
Type:
Journal Paper
Journal:
Chemistry Of Materials
, VOL 20 (14)
, PAGES 45544556
State:
Published (Approved)
Published:
June 2008
Abstract: A new bottom-up approach using magnetic crystallization for the synthesis of centimeter long silica coated magnetic FePt colloidal crystals is for the first time revealed. HRTEM, SAX, BET, and VSM indicate that hcp packed colloidal crystals are composed of three-dimensional regular arrays of superparamagnetic FePt nanoparticle encapsulated in a protective hydrophilic silica shell with controllable thickness depending on gelation times which create adjustable internal interstices
Subject Areas:
Chemistry,
Materials
Instruments:
NONE-No attached Diamond beamline
Discipline Tags:
Technical Tags: