期刊
NANOSCALE HORIZONS
卷 3, 期 2, 页码 213-217出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7nh00125h
关键词
-
资金
- Australian National Computing Infrastructure national facility [q27]
Nanometer-sized diamond particles are used in bio-medical applications, where the nature of the nanodiamond surfaces is crucial to achieving correct functionalisation. Herein, using high-resolution transmission electron microscopy and electronic structure calculations, we study the surface reconstructions that occur in detonationsynthesized nanodiamonds. Our results show that particles smaller than 3 nm exhibit size-and shape-dependent surface reconstructions, and that the surfaces can exhibit a higher-than-expected fraction of sp(2+x) bonding. This indicates an aliphatic character for sub-3 nm nanodiamond particles. Such behaviour impacts the functionality of nanodiamonds, where both size and surface charge can drive performance. Our observations offer a potential strategy for better functionalization control via the size range of the particles.
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