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Synthesis and Characterization of Bimetallic Pd-Co Nano Magnetic Materials in Mesoporous Silica

Published online by Cambridge University Press:  15 March 2011

Balaji Tatineni ,
Dhananjay Kumar ,
Joslyn Perkins ,
Sergey Yarmolenko  and
Debasish Kuila
Balaji Tatineni
Affiliation:
Department of Chemistry, North Carolina A & T State University, Greensboro, NC 27411
Dhananjay Kumar
Affiliation:
Center for Advanced Materials and Smart Structures (CAMSS), North Carolina A & T State University, Greensboro, NC 27411
Joslyn Perkins
Affiliation:
Department of Chemistry, North Carolina A & T State University, Greensboro, NC 27411
Sergey Yarmolenko
Affiliation:
Center for Advanced Materials and Smart Structures (CAMSS), North Carolina A & T State University, Greensboro, NC 27411
Debasish Kuila
Affiliation:
Department of Chemistry, North Carolina A & T State University, Greensboro, NC 27411
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Abstract

An one-pot procedure was developed for the synthesis of mesoporous silica containing bimetallic PdCo using Pd(NO3)2 and CoCl2, and cetyl trimethyl ammonium bromide (CTAB) as the templating agent, and tetramethoxy silane (TMOS) as the precursor. The materials were characterized using high resolution scanning transmission electron microscopy (HRSTEM), elemental analysis, X-ray diffraction (XRD), and magnetic measurements. The data indicate that the bimetallic Pd-Co nanoparticles are uniformly distributed on the inner pore walls of silica. The magnetic measurements of reduced Pd-Co nanoparticles (4-5 nm) in mesoporous silica reveal a typical ferromagnetic behavior up to 20 K and exhibit superparamagnetic properties above 30 K.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1118: Symposium K – Magnetic Nanostructures by Design , 2008 , 1118-K02-09
Copyright
Copyright © Materials Research Society 2009

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