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一锅法反应及后续退火合成空心球形磁铁矿和磁赤铁矿纳米笼。

One-Pot Reaction and Subsequent Annealing to Synthesis Hollow Spherical Magnetite and Maghemite Nanocages.

作者信息

Wu Wei, Xiao Xiangheng, Zhang Shaofeng, Li Hang, Zhou Xiaodong, Jiang Changzhong

出版信息

Nanoscale Res Lett. 2009 May 22;4(8):926-931. doi: 10.1007/s11671-009-9342-6.

DOI:10.1007/s11671-009-9342-6
PMID:20596278
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2894336/
Abstract

Water-soluble hollow spherical magnetite (Fe(3)O(4)) nanocages (ca. 100 nm) with high saturation magnetization are prepared in a one-pot reaction by sol-gel method and subsequent annealing to synthesise the maghemite (gamma-Fe(2)O(3)) nanocages with similar nanostructures. The nanocages have been investigated by powder X-ray diffraction (XRD), transmission electron microscope (TEM), high-resolution transmission electron microscope (HRTEM), and superconducting quantum interference device (SQUID). The results indicated that glutamic acid played an important role in the formation of the cage-like nanostructures.

摘要

通过溶胶-凝胶法和随后的退火处理，在一锅反应中制备出具有高饱和磁化强度的水溶性空心球形磁铁矿（Fe(3)O(4)）纳米笼（约100纳米），以合成具有相似纳米结构的磁赤铁矿（γ-Fe(2)O(3)）纳米笼。通过粉末X射线衍射（XRD）、透射电子显微镜（TEM）、高分辨率透射电子显微镜（HRTEM）和超导量子干涉装置（SQUID）对纳米笼进行了研究。结果表明，谷氨酸在笼状纳米结构的形成中起重要作用。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/98a6/3243976/b47ac6df1986/1556-276X-4-926-6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/98a6/3243976/664ae0e16108/1556-276X-4-926-1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/98a6/3243976/a4a2544c590b/1556-276X-4-926-2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/98a6/3243976/051d2d9791a8/1556-276X-4-926-3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/98a6/3243976/bcbd31aa2a29/1556-276X-4-926-4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/98a6/3243976/4a29bc87d91c/1556-276X-4-926-5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/98a6/3243976/b47ac6df1986/1556-276X-4-926-6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/98a6/3243976/664ae0e16108/1556-276X-4-926-1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/98a6/3243976/a4a2544c590b/1556-276X-4-926-2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/98a6/3243976/051d2d9791a8/1556-276X-4-926-3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/98a6/3243976/bcbd31aa2a29/1556-276X-4-926-4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/98a6/3243976/4a29bc87d91c/1556-276X-4-926-5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/98a6/3243976/b47ac6df1986/1556-276X-4-926-6.jpg

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