Addition/Correction pubs.acs.org/cm
Correction to Formation of Hollow Upconversion Rare-Earth Fluoride Nanospheres: Nanoscale Kirkendall Effect During Ion Exchange Fan Zhang, Yifeng Shi, Xiaohong Sun, Dongyuan Zhao, and Galen D. Stucky* Chem. Mater. 2009, 21, 5237−5243. DOI: 10.1021/cm902231s
P
age 5238. There is a typographical error in the subsection “Synthesis of Rare Earth Fluoride Hollow Nanosphere”: the amount of Y2O3 nanospheres added in a typical synthesis was 0.075 g. We are grateful to Cheng Chao of the National University of Singapore for bringing this error to our attention.
Published: June 25, 2012 © 2012 American Chemical Society
2619
dx.doi.org/10.1021/cm301856p | Chem. Mater. 2012, 24, 2619−2619