Figure 3.

Typical SEM micrographs and HRTEM micrograph of CuO, MWNT, and Cu. (a) Typical SEM micrograph of CuO nanoparticles; (b) typical SEM micrograph of MWNTs; (c) typical HRTEM micrograph of MWNTs; (d) typical SEM micrographs of Cu nanoparticles.

Liu et al. Nanoscale Research Letters 2011 6:297   doi:10.1186/1556-276X-6-297
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