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Assumption-free morphological quantification of single anisotropic nanoparticles and aggregates
Dimitri Vanhecke1, Laura Rodríguez-Lorenzo, Calum Kinnear
1University of Fribourg, Adolphe Merkle Institute, Ch. des Verdiers 4, Fribourg, Switzerland. Dimitri.vanhecke@unifr.ch.
Nanoscale
|March 31, 2017
Abstract:
Characterizing the morphometric parameters of noble metal nanoparticles for sensing and catalysis is a persistent challenge due to their small size and complex shape. Herein, we present an approach to determine the volume, surface area, and curvature of non-symmetric anisotropic nanoparticles using electron tomography and design-based stereology without the use of segmentation tools or modeling of the particles. Finally, we apply these tools to aggregates to estimate their fractal dimension.