Figure 6.

SEM image of(a)cluster of flower-like nanotips and surrounding nanoparticle agglomerates with corresponding EDX area scans showing high concentrations of(b)oxygen;(c)sodium; and an absence of(d)silicon within the bounded nanotip region.

Samarasekera et al. Nanoscale Research Letters 2012 7:404   doi:10.1186/1556-276X-7-404
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