NDLI: One-step synthesis of open-cell Ni foams by annealing the Ni<sup>2+</sup>-based precursor in air

Content Provider	Royal Society of Chemistry (RSC)
Author	Yang, Zhaolong Zhang, Jing Xue, Desheng Gao, Daqiang Zhang, Zhipeng Zhu, Zhonghua Yang, Guijin
Copyright Year	2012
Abstract	In this paper, we present a facile approach to fabricate open-cell Ni foams by annealing the colloid of Ni(NO3)2 and 2-methoxyethanol (C3H8O2) in air. X-Ray diffraction and selected area electron diffraction results show that the products are single crystal Ni in the face-centered cubic (fcc) phase. This result was confirmed by the peak corresponding to zero valence of Ni in X-ray photoelectron spectroscopy. Scanning electron microscopy results reveal the 3-dimensional geometry open-cell foam structure of the products. The average aperture size of the Ni foam is about 300 nm and the wall stent is about 250 nm with an Ni2+ concentration of 0.35 M in the colloid. The porosity of the products decreases gradually with increasing Ni2+ concentration in C3H8O2. Owing to its uniform 3-D structure with high porosity and high specific surface area, the open cell Ni foams may have some potential applications, such as magnetic flux conductors or an ideal electrode material for high energy MH/Ni and Cd/Ni batteries, etc.
Starting Page	9462
Ending Page	9465
Page Count	4
File Format	HTM / HTML PDF
ISSN	09599428
Volume Number	22
Issue Number	19
Journal	Journal of Materials Chemistry
DOI	10.1039/c2jm30548h
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Nucleic acid thermodynamics Colloid 2-Methoxyethanol X-ray scattering techniques Electron diffraction Cubic crystal system X-ray photoelectron spectroscopy Photoemission spectroscopy Scanning electron microscope Molecular geometry Aperture Stent Porosity Specific surface area Magnetic field Electrode
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Chemistry

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