Preparation method of Ce1-xZrxO2/tourmaline nanocomposite with high far-infrared emissivity and its mechanism

doi:10.1007/s00339-015-9586-1

	Preparation method of Ce1-xZrxO2/tourmaline nanocomposite with high far-infrared emissivity and its mechanism
	Guo, Bin1,2 ; Yang, Liqing1 ; Li, Wenlong1,2 ; Wang, Haojing1 ; Zhang, Hong 1; Guo, Bin (guobin@opt.ac.cn)
作者部门	等离子体物理化学应用技术研究中心
	2016-02-01
发表期刊	APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
ISSN	0947-8396
卷号	122 期号:2 页码:1-7
产权排序	1
摘要	Far-infrared functional nanocomposites were prepared by the coprecipitation method using natural tourmaline (XY(3)Z(6)Si(6)O(18)(BO3)(3)V3W, where X is Na+, Ca2+, K+, or vacancy; Y is Mg2+, Fe2+, Mn2+, Al3+, Fe3+, Mn3+, Cr3+, Li+, or Ti4+; Z is Al3+, Mg2+, Cr3+, or V3+; V is O2-, OH-; and W is O2-, OH-, or F-) powders, ammonium cerium(IV) nitrate and zirconium(IV) nitrate pentahydrate as raw materials. The reference sample tourmaline modified with ammonium cerium(IV) nitrate alone was also prepared by a similar precipitation route. The results of Fourier transform infrared spectroscopy show that Ce-Zr can further enhance the far-infrared emission properties of tourmaline than Ce alone. Through characterization by X-ray diffraction (XRD), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS), the mechanism by which Ce(-Zr) acts on the far-infrared emission property of tourmaline was systematically studied. The XPS spectra show that the Fe3+ ratio inside tourmaline powders after heat treatment can be raised by doping Ce and further raised after adding Zr. Moreover, it is showed that Ce3+ is dominant inside the samples, but its dominance is replaced by Ce4+ outside. In addition, XRD results indicate the formation of CeO2 and Ce(1-x)ZrxO(2) crystallites during the heat treatment, and further, TEM observations show they exist as nanoparticles on the surface of tourmaline powders. Based on these results, we attribute the improved far-infrared emission properties of Ce-Zr-doped tourmaline to the enhanced unit cell shrinkage of the tourmaline arisen from much more oxidation of Fe2+ (0.074 nm in radius) to Fe3+ (0.064 nm in radius) inside the tourmaline caused by Zr enhancing the redox shift between Ce4+ and Ce3+ via improving the oxygen mobility in the Ce-Zr crystal.
文章类型	Article
WOS标题词	Science & Technology ; Technology ; Physical Sciences
DOI	10.1007/s00339-015-9586-1
收录类别	SCI ; EI
关键词[WOS]	CEO2-ZRO2 MIXED OXIDES ; OXIDATION CATALYSTS ; STORAGE CAPACITY ; SOLID-SOLUTIONS ; HEAT-TREATMENT ; RARE-EARTH ; TOURMALINE ; OXYGEN ; BEHAVIOR ; GAS
语种	英语
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:000369972400044
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.opt.ac.cn/handle/181661/27802
专题	复合材料与器件先进制造研发中心
通讯作者	Guo, Bin (guobin@opt.ac.cn)
作者单位	1.Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Guo, Bin,Yang, Liqing,Li, Wenlong,et al. Preparation method of Ce1-xZrxO2/tourmaline nanocomposite with high far-infrared emissivity and its mechanism[J]. APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING,2016,122(2):1-7.
APA	Guo, Bin,Yang, Liqing,Li, Wenlong,Wang, Haojing,Zhang, Hong,&Guo, Bin .(2016).Preparation method of Ce1-xZrxO2/tourmaline nanocomposite with high far-infrared emissivity and its mechanism.APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING,122(2),1-7.
MLA	Guo, Bin,et al."Preparation method of Ce1-xZrxO2/tourmaline nanocomposite with high far-infrared emissivity and its mechanism".APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING 122.2(2016):1-7.

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