Research Article
Magnetic Cobalt and Cobalt Oxide Nanoparticles in Hyperbranched Polyester Polyol Matrix
Figure 5
Color transformation of Co2+-BH20 solution before (a, d) and after (b, e) reduction; the collection of CoNPs by a magnet (c, f).
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| (b) |
| (c) |
| (d) |
| (e) |
| (f) |