共 53 条
Controlled synthesis of three-dimensional CoNi microstructures composed of single crystal CoNi nanoleaves
被引:17
作者:

Li, Hao
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机构:
Huizhou Univ, Dept Chem Engn, Huizhou 516007, Peoples R China Huizhou Univ, Dept Chem Engn, Huizhou 516007, Peoples R China

Liao, Jinyun
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h-index: 0
机构:
Huizhou Univ, Dept Chem Engn, Huizhou 516007, Peoples R China Huizhou Univ, Dept Chem Engn, Huizhou 516007, Peoples R China

Feng, Yufa
论文数: 0 引用数: 0
h-index: 0
机构:
Huizhou Univ, Dept Chem Engn, Huizhou 516007, Peoples R China Huizhou Univ, Dept Chem Engn, Huizhou 516007, Peoples R China

Yu, Shiwen
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h-index: 0
机构:
Huizhou Univ, Dept Chem Engn, Huizhou 516007, Peoples R China Huizhou Univ, Dept Chem Engn, Huizhou 516007, Peoples R China

Zhang, Xibin
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h-index: 0
机构:
Huizhou Univ, Dept Chem Engn, Huizhou 516007, Peoples R China Huizhou Univ, Dept Chem Engn, Huizhou 516007, Peoples R China

Jin, Zhen
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h-index: 0
机构:
Huizhou Univ, Dept Chem Engn, Huizhou 516007, Peoples R China Huizhou Univ, Dept Chem Engn, Huizhou 516007, Peoples R China
机构:
[1] Huizhou Univ, Dept Chem Engn, Huizhou 516007, Peoples R China
基金:
中国国家自然科学基金;
关键词:
HETEROGENEOUS NUCLEATION;
BIMETALLIC CONI;
NI;
GROWTH;
NICKEL;
NANOSTRUCTURES;
NANOPARTICLES;
NANOWIRES;
COBALT;
NANOFLOWERS;
D O I:
10.1039/c2ce06383b
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
Three dimensional (3D) alloyed micro-and nanostructures composed of nanoscale subunits with regular and novel morphologies have received intensive attention due to their interesting physicochemical properties and wide applications in different areas. In this study, 3D CoNi microstructures consisting of well-defined CoNi nanoleaves are synthesized by a complexant-assisted wet-chemical reduction process free of any surfactant or template, which is suitable for large scale production. Elemental maps obtained by X-ray energy-dispersive spectroscopy (EDS) indicate that Co and Ni elements are homogenously distributed in the microstructures, verifying that the sample is an alloy rather than a mixture of Co and Ni. High resolution transmission electron microscopy (HRTEM) images and the selected area electron diffraction (SAED) pattern demonstrate the nanoleaves in the 3D microstructures are single crystals. Magnetic measurements at room temperature revealed that the as-prepared 3D CoNi microstructures exhibit a ferromagnetic property with a coercivity of 197.4 Oe, which is much higher than that of many CoNi micro-and nanostructures reported in recent literature. Based on the evolution of the morphology of the products with increasing reaction time, a possible formation mechanism is proposed to illustrate the growth of the CoNi microstructures.
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页码:2974 / 2980
页数:7
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