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In Situ Formation of Metal Nanoparticles on Ceramic Surface
Author(s) -
Suenaga Seiichi,
Suetsuna Tomohiro,
Harada Koichi,
Fukasawa Takayuki
Publication year - 2004
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2004.00963.x
Subject(s) - materials science , nanometre , copper , ceramic , precipitation , nanoparticle , nickel , magnesium , chemical engineering , oxide , nanocomposite , metal , particle size , particle (ecology) , copper oxide , metallurgy , nanotechnology , inorganic chemistry , composite material , chemistry , oceanography , physics , geology , meteorology , engineering
A new preparation method for nanocomposites is proposed in which nanometer‐scale nickel particles are precipitated homogeneously on the magnesia surface. Our approach is based on a conventional method that uses a reaction of difference in oxide stability in reductive atmosphere. We found that aluminum doping of the material precursor enabled preferential precipitation on the oxide substrate. We also have applied the preparation method for the nickel‐copper/magnesia system. An addition of copper was effective for reducing the particle diameter. We found that morphology created by the method could be controlled by varying precursor composition.