Branched CdO/ZnO Core/Shell Heterogeneous Structure
and Its Enhanced Photoelectrocatalytic Performance
Pu Sun
Ruping Liu
Ruifang Ma
Zhengdao Xie
Fan Su
Yanfang Gong
Zeming Mu
Luhai Li
Yen Wei
Qiang Wan
10.1021/acsomega.8b00457.s001
https://acs.figshare.com/articles/journal_contribution/Branched_CdO_ZnO_Core_Shell_Heterogeneous_Structure_and_Its_Enhanced_Photoelectrocatalytic_Performance/7112045
Branched
nanostructures of semiconductors based on one-dimensional heterostructures
have many promising applications in optoelectronics, supercapacitors,
photocatalysts, etc. Here, we report a novel branched core/shell CdO/ZnO
hetero-nanostructure that resembles a Crimson bottlebrush (Callistemon Citrinus) but with intriguing hexagonal
symmetry. The nanomaterials were fabricated via an improved one-step
chemical vapor deposition method and consist of a CdO wire as the
core and ZnO as the shell. With cadmium acting as a catalyst, ZnO
nanowires grow as perpendicular branches from the CdO/ZnO one-dimensional
core/shell structure. The nanostructures were characterized with X-ray
diffraction scanning and transmission electron microscopy. A homogeneous
epitaxial growth mechanism has been postulated for the formation of
the nanostructure. The materials show a broad and strong absorption
ranging from visible to ultraviolet and a better photoelectrocatalytic
properties in comparison to pure ZnO or CdO. Our synthetic strategy
may open up a new way for controlled preparation of one-dimensional
nanomaterials with core/shell heterostructure, which could find potential
applications in solar cells and opto-electrochemical water-splitting
devices.
2018-09-20 17:38:04
transmission electron microscopy
Callistemon Citrinus
chemical vapor deposition method
Enhanced Photoelectrocatalytic Performance Branched nanostructures
opto-electrochemical water-splitting devices
X-ray diffraction scanning
application
nanomaterial
Crimson bottlebrush
core
heterostructure
epitaxial growth mechanism
CdO wire
materials show
ZnO nanowires
photoelectrocatalytic properties