Investigation of the facet-dependent performance of α-Fe_2O_3 nanocrystals for heavy metal determination by stripping voltammetry

摘要

We find for the first time that the electrochemical performances of the α-Fe_2O_3 nanostructures depend on their exposed facets. Density functional theory calculations are carried out to better and scientifically understand the effect of different exposed facets at the atomic-scale level.