Synthesis of uranium oxide nanoparticles and their catalytic performance for benzyl alcohol conversion to benzaldehyde
Synthesis of uranium oxide nanoparticles and their catalytic performance for benzyl alcohol conversion to benzaldehyde
复制标题
氧化铀纳米粒子的合成及其对苯甲醇转化为苯甲醛的催化性能
DOI：
10.1039/b716990f
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发表时间：
2008-02
影响因子：
--
通讯作者：
Chen, Jie-Sheng
中科院分区：
文献类型：
--
作者：
Li, Guo-Dong;Xu, Shuang;Li, Ji-Xue;Wang, Qun;Chen, Jie-Sheng
通过改变还原剂，在水热条件下选择性地合成了由15 nm亚单元组成的球形UO 2纳米颗粒（平均直径100 nm）和单晶U3 O 8纳米棒（直径80 ~ 100 nm）。纳米棒沿晶体学[001]方向沿着生长，长度为500-1500 nm。通过调节溶剂和还原剂的体积比等反应条件，可以在一定程度上改变二氧化铀纳米结构的尺寸和形貌。球形UO 2颗粒通过在空气中在800 °C下煅烧2 h转化为多孔U3 O 8聚集体。采用X射线衍射（XRD）、扫描电子显微镜（SEM）和透射电子显微镜（TEM）对产物的结构和形貌进行了表征。此外，对多孔U3 O 8聚集体和U3 O 8纳米棒的催化性能测试表明，氧化铀材料对苯甲醇氧化的催化性能是形貌依赖性的。
Through varying the reducing agents, sphere-shaped UO2nanoparticles (average diameter 100 nm) consisting of 15 nm nanocrystal subunits and single crystalline U3O8nanorods (diameter ranging from 80 to 100 nm) have been synthesized selectively under hydrothermal conditions. The nanorods, which grew along the crystallographic [001] direction, were found to be 500–1500 nm in length. By adjusting the reaction conditions such as the volume ratio of the solvent and the reducing agent, the size and morphology of the uranium dioxide nanostructures varied to a certain degree. The sphere-shaped UO2 particles were converted to porous U3O8 aggregates through calcination at 800 °C for 2 h in air. The structure and morphology of the obtained products were characterized by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Furthermore, a catalytic test on the porous U3O8 aggregates and the U3O8nanorods indicates that the catalytic performance of the uranium oxide materials for the oxidation of benzyl alcohol is morphology-dependent.
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影响因子：
8.6
作者：
Lu, Lehui;Kobayashi, Atsuko;Ozaki, Yukihiro
通讯作者：
Ozaki, Yukihiro
DOI：
10.1021/jp062795n
发表时间：
2006-11
期刊：
The journal of physical chemistry. B
影响因子：
--
作者：
Z. Chernia;Y. Ben‐Eliyahu;G. Kimmel;G. Braun;J. Sariel
通讯作者：
Z. Chernia;Y. Ben‐Eliyahu;G. Kimmel;G. Braun;J. Sariel
影响因子：
15
作者：
Huimeng Wu;Yongan Yang;Y. Charles Cao
通讯作者：
Huimeng Wu;Yongan Yang;Y. Charles Cao
影响因子：
3.3
作者：
J. Stultz;and M. T. Paffett;S. Joyce
通讯作者：
J. Stultz;and M. T. Paffett;S. Joyce
影响因子：
15
作者：
Tierui Zhang;W. Dong;Mary Keeter-Brewer;Sanjit Konar;Roland N. Njabon;Z. Tian
通讯作者：
Tierui Zhang;W. Dong;Mary Keeter-Brewer;Sanjit Konar;Roland N. Njabon;Z. Tian