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.
(a–c) SEM images, (e,i,m,q) X-ray diffraction patterns, (d,f–h,j–l,n–p,r–t) TEM images of (a–h) TiO@C-HS, (i–l) TiO2@C-HS, (m–p) TiO2−x@C-NP, (q,r) TiO2-NP and (s,t) C-HS. Scale bars, 1 μm (a), scale bars, 200 nm (b), scale bars, 100 nm (c,g,k,n,s), scale bars, 500 nm (f,j,t), scale bars, 10 nm (d), scale bars, 5 nm (l), scale bars, 2 nm (h,o,p), scale bars, 50 nm (r). a.u., arbitrary unit.
