Alkali concentration-dependent tailoring of highly controllable titanate nanostructures: From yolk-shell, hollow 3D nanospheres to 1D nanowires

Alkali concentration-dependent tailoring of highly controllable titanate nanostructures: From yolk-shell, hollow 3D nanospheres to 1D nanowires
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碱浓度依赖性高度可控钛酸盐纳米结构的定制:从蛋黄壳、空心 3D 纳米球到 1D 纳米线

DOI:
10.1016/j.apsusc.2013.12.170
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发表时间:
2014-02
影响因子:
6.7
通讯作者:
Li, Jie
Li, Jie
中科院分区:
材料科学1区
文献类型:
--
作者:
Yang, Mu;Wang, Ge;Tan, Li;Li, Jie

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我们展示了一种简单的策略,通过水热过程将0D纳米颗粒访问到3D分层结构。产物的形貌是碱浓度依赖性的,这是系统的研究。随着NaOH浓度的增加,纳米管的形貌由蛋黄壳状、中空的三维纳米球向一维纳米线转变。研究了其晶相组成、相变关系和形成机理。此外,具有不同形貌的TiO2作为苯乙烯氧化催化剂进行了评价,并显示出优异的催化活性和化学稳定性。
We demonstrate a facile strategy to access 0D nanoparticles to 3D hierarchical structures through a hydrothermal process. The morphology of the products is alkali concentration-dependent, which was systematically investigated. As the NaOH concentration rising, morphology transformations from yolk-shell, hollow hierarchical 3D nanospheres to 1D nanowires are achieved. The crystal phase, the transformation relationship, and the formation mechanisms were studied as well. Furthermore, TiO2with diversified morphologies was evaluated as styrene oxidation catalyst and showed excellent catalytic activities and chemical stability.
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