Scheme 1.
Schematic illustration of flame synthesis and in situ selective modification of double-faced g-Fe2O3||SiO2 NHs. Reproduced with permission from [67]. Copyright Royal Society of Chemistry, 2013.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.