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