Unexpected refacetting of palladium nanoparticles under atmospheric N conditions.

Author(s) Zhang, X.; Meng, J.; Zhu, B.; Yuan, W.; Yang, H.; Zhang, Z.; Gao, Y.; Wang, Y.
Journal Chem Commun (Camb)
Date Published 2018 Aug 11
Abstract

We demonstrate an unexpected refacetting process of Pd nanoparticles, induced by N under atmospheric pressure at elevated temperatures, by in situ TEM observations. The morphology changes, with a notable increase in the fraction of Pd{110} facets, were visualized by atomic-scale TEM images and further explained by theoretical calculations. Firm evidence and rational understanding revealed that the "inert" gas N has the ability to modify the structure of metal nanoparticles. This surprising effect should be considered seriously in vast chemical applications that use N as a carrier gas or protective atmosphere.

DOI 10.1039/c8cc04574g
ISSN 1364-548X
Citation Zhang X, Meng J, Zhu B, Yuan W, Yang H, Zhang Z, et al. Unexpected refacetting of palladium nanoparticles under atmospheric N conditions. Chem Commun (Camb). 2018;54(62):8587-8590.