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Ni nanoclusters in silica matrix have been synthesized via sol–gel process for different percentage of Ni in the matrix. Transmission electron microscopic studies showed that the particle size of nickel was in the range 6–8.5nm for a variation of Ni content in the silica matrix 5–15%. Selected area electron diffraction patterns confirmed that these nanoparticles are cubic Ni and XRD studies of the...
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