Self-Templated One-Step Hydrothermal Synthesis of Hierarchical Actinomorphic Flower-like SnO2-ZnO Nanorods for High-Performance Supercapacitor Application

In this work, we present the synthesis of a ternary CeO2–SnO2/rGO nanocomposite by using a facile one-step hydrothermal method. The as-synthesized composite was structural, chemical, morphological, elemental information studied by using different characterization techniques X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy and field emission scanning electron microscope (FESEM), energy dispersive X-ray spectroscopy (EDAX) and transmission electron microscope (TEM). The CeO2–SnO2/rGO exhibited an excellent specific capacitance of 156[Formula: see text]F[Formula: see text][Formula: see text] at 0.5[Formula: see text]A/g in the presence of 3 M KOH solution. The synergic effect of CeO2, SnO2 and graphene composite coated on Ni foam endowed a high specific capacitance than their individual compounds. This work suggests that the novel ternary composite is a promising candidate for the high performance electrochemical energy storage and conversion systems.

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One-Step Hydrothermal Synthesis and Characterization of ZnO Nanopowders

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.110-116.1928 ◽

2011 ◽

Vol 110-116 ◽

pp. 1928-1933 ◽

Cited By ~ 1

Author(s):

Yan Xiang Wang ◽

Xiao Yan Li ◽

Jian Sun ◽

Yao Hui Hu

Keyword(s):

Hydrothermal Synthesis ◽

Raw Materials ◽

Zno Nanorods ◽

Synthesis Temperature ◽

Molar Concentration ◽

Zno Nanosheets ◽

Length Width ◽

One Step ◽

Lower Temperature

In the paper, ZnO nanopowders were synthesized by one-step hydrothermal synthesis using zinc acetate and sodium hydroxide as raw materials. The influences of molar concentration of NaOH and synthesis temperature on the properties of ZnO nanopowders were investigated. XRD and FSEM were used to characterize ZnO nanopowders. The results showed that; when the molar concentration of NaOH was 0.05 mol/L, 1mol/L and 2mol/L, ZnO micrometer powders were obtained. When the molar concentration of NaOH was 4mol/L, ZnO nanorods or nanosheets were obtained with different reaction temperature. When the temperature was 220°C, ZnO nanorods with the length of 500nm and diameter of 100nm, were synthesised. Pure ZnO nanopowders can be obtained at lower temperature of 100°C by using one-step hydrothermal synthesis. When the synthesis temperature was 100°C and the molar concentration of NaOH was 4mol/L, ZnO nanosheets were produced. The length, width and thickness of ZnO nanosheets were about 800 nm, 500nm and 80nm, respectively.

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One-step synthesis of Nb-doped TiO2 rod@Nb2O5 nanosheet core–shell heterostructures for stable high-performance lithium-ion batteries

RSC Advances ◽

10.1039/c5ra28065f ◽

2016 ◽

Vol 6 (32) ◽

pp. 27094-27101 ◽

Cited By ~ 7

Author(s):

Xiao Yu ◽

Ling Xin ◽

Yong Liu ◽

Wenxia Zhao ◽

Baojun Li ◽

...

Keyword(s):

Hydrothermal Synthesis ◽

Lithium Ion Batteries ◽

High Performance ◽

Lithium Ion ◽

Shell Structures ◽

Core Shell ◽

Doped Tio2 ◽

One Step

Conceptually novel Nb-doped TiO2@Nb2O5 core–shell heterostructures were obtained by one-step hydrothermal synthesis through sequential growth of Nb-doped TiO2 core and Nb2O5 shell structures.

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