TY - JOUR
T1 - Synthesis of bundle-like CeO2 nanofibers and their sub-microstructures
AU - Li, Ruixing
AU - Fu, Cong
AU - Li, Chengqiang
AU - Yin, Shu
AU - Zhang, Yue
AU - Sato, Tsugio
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2010/6
Y1 - 2010/6
N2 - The simultaneous control of size, morphology, and size distribution of particles is a challenging topic for powder synthesis, and one-dimensional (1-D) nanostructures have attracted increasing attention due to their specific properties. In the present study, 1-D CeO2 was synthesized via a solvothermal treatment using Ce(NO3)3·6H 2O and CO(NH2)2 in ethanol without the use of any template or surfactant. A SEM study revealed 1-D CeO2 fibers with perfect profile, well-dispersed state, and more uniform size distribution. The diameter of the fibers was about 50nm and the length was 200-800 nm. An in-depth TEM observation revealed that a 1-D profile was formed by agglomeration of large numbers of nanoparticles during an early stage of the reaction. Then, the nanoparticles were gradually fused together to form a 1-D fiber with a smooth surface and a sub-microstructure, namely, the CeO2 fibers were assembled from many sub-nanofibers. Finally, some possible evolution mechanisms for the formation of bundlelike CeO2 nanofibers were discussed.
AB - The simultaneous control of size, morphology, and size distribution of particles is a challenging topic for powder synthesis, and one-dimensional (1-D) nanostructures have attracted increasing attention due to their specific properties. In the present study, 1-D CeO2 was synthesized via a solvothermal treatment using Ce(NO3)3·6H 2O and CO(NH2)2 in ethanol without the use of any template or surfactant. A SEM study revealed 1-D CeO2 fibers with perfect profile, well-dispersed state, and more uniform size distribution. The diameter of the fibers was about 50nm and the length was 200-800 nm. An in-depth TEM observation revealed that a 1-D profile was formed by agglomeration of large numbers of nanoparticles during an early stage of the reaction. Then, the nanoparticles were gradually fused together to form a 1-D fiber with a smooth surface and a sub-microstructure, namely, the CeO2 fibers were assembled from many sub-nanofibers. Finally, some possible evolution mechanisms for the formation of bundlelike CeO2 nanofibers were discussed.
KW - CeO
KW - Fibers
KW - Nanosizes
KW - Solvothermal
KW - Synthesis
UR - http://www.scopus.com/inward/record.url?scp=77953566939&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77953566939&partnerID=8YFLogxK
U2 - 10.2109/jcersj2.118.555
DO - 10.2109/jcersj2.118.555
M3 - Article
AN - SCOPUS:77953566939
VL - 118
SP - 555
EP - 557
JO - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
JF - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
SN - 1882-0743
IS - 1378
ER -