Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Branched CdO/ZnO Core/Shell Heterogeneous Structure and Its Enhanced Photoelectrocatalytic Performance
ACS Omega ( IF 3.7 ) Pub Date : 2018-09-20 00:00:00 , DOI: 10.1021/acsomega.8b00457 Pu Sun 1 , Ruping Liu 2 , Ruifang Ma 1 , Zhengdao Xie 1 , Fan Su 2 , Yanfang Gong 1 , Zeming Mu 1 , Luhai Li 2 , Yen Wei 2, 3 , Qiang Wan 1
ACS Omega ( IF 3.7 ) Pub Date : 2018-09-20 00:00:00 , DOI: 10.1021/acsomega.8b00457 Pu Sun 1 , Ruping Liu 2 , Ruifang Ma 1 , Zhengdao Xie 1 , Fan Su 2 , Yanfang Gong 1 , Zeming Mu 1 , Luhai Li 2 , Yen Wei 2, 3 , Qiang Wan 1
Affiliation
|
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.
中文翻译：
支链CdO / ZnO核/壳非均相结构及其增强的光电催化性能
基于一维异质结构的半导体支化纳米结构在光电子，超级电容器，光催化剂等方面具有许多有希望的应用。在这里，我们报道了一种新型的核芯/壳CdO / ZnO异质纳米结构，类似于深红色的毛笔刷（Callistemon Citrinus），但具有令人感兴趣的六角形对称性。纳米材料是通过改进的一步化学气相沉积法制备的，由CdO线为核，ZnO为壳。以镉为催化剂，ZnO纳米线以垂直分支的形式从CdO / ZnO一维核/壳结构中生长出来。用X射线衍射扫描和透射电子显微镜对纳米结构进行表征。假定均匀的外延生长机制用于纳米结构的形成。与纯ZnO或CdO相比，该材料显示出从可见光到紫外线的广泛而强的吸收性，并具有更好的光电催化性能。我们的合成策略可能为控制制备具有核/壳异质结构的一维纳米材料开辟一条新途径，
更新日期：2018-09-20
中文翻译：
支链CdO / ZnO核/壳非均相结构及其增强的光电催化性能
基于一维异质结构的半导体支化纳米结构在光电子，超级电容器，光催化剂等方面具有许多有希望的应用。在这里，我们报道了一种新型的核芯/壳CdO / ZnO异质纳米结构，类似于深红色的毛笔刷（Callistemon Citrinus），但具有令人感兴趣的六角形对称性。纳米材料是通过改进的一步化学气相沉积法制备的，由CdO线为核，ZnO为壳。以镉为催化剂，ZnO纳米线以垂直分支的形式从CdO / ZnO一维核/壳结构中生长出来。用X射线衍射扫描和透射电子显微镜对纳米结构进行表征。假定均匀的外延生长机制用于纳米结构的形成。与纯ZnO或CdO相比，该材料显示出从可见光到紫外线的广泛而强的吸收性，并具有更好的光电催化性能。我们的合成策略可能为控制制备具有核/壳异质结构的一维纳米材料开辟一条新途径，
京公网安备 11010802027423号