Journal
NEW JOURNAL OF CHEMISTRY
Volume 42, Issue 2, Pages 1379-1386Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7nj03948d
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Funding
- University Grant Commission (UGC)
- CSIR [CSC-0404]
- Department of Science and Technology (DST, India) [SR/FT/CS-106/2011]
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Porous 3D CeO2 nanocubes were synthesized using hot injection technique. These nanocubes were able to form a stable monolayer over water and HAuCl4 subphase in Langmuir-Blodgett (LB) trough due to the presence of surface capped oleic acid and oleylamine. CeO2-Au nanocomposites were synthesized exploiting the ability of oleylamine to reduce AuCl4 ions to Au-0, via LB method. CeO2 nanocubes gave rise to excellent long-range assembly at air/water interface and gold nanoparticles were formed inside these porous nanocubes without disturbing this arrangement. The formation of a stable monolayer was evidenced from the surface pressure-area (P-A) isotherm. The development of Au nanoparticles was confirmed with great effort from a comprehensive study using UV-Vis spectroscopy, XRD, XPS, FTIR, TEM, STEM, EDX, tomography and chemical mapping.
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