| Effect of nano-sized cerium zirconium oxide solid solution on far-infrared emission properties of tourmaline powders | |
Guo, Bin1,2 ; Yang, Liqing1; Hu, Weijie1,2; Li, Wenlong1,2; Wang, Haojing1
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| 2015-11-10 | |
| 发表期刊 | MODERN PHYSICS LETTERS B
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| 卷号 | 29期号:30 |
| 摘要 | Far-infrared functional nanocomposites were prepared by the co-precipitation 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 tourmaline modified with Ce and Zr has a better far-infrared emission property than tourmaline modified with Ce alone. Through characterization by transmission electron microscopy (TEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS), the mechanism for oxygen evolution during the heat process in the two composite materials was systematically studied. The XPS spectra show that Fe3+ ratio inside tourmaline modified with Ce alone can be raised by doping Zr. Moreover, it is showed that there is a higher Ce3+ ratio inside the tourmaline modified with Ce and Zr than tourmaline modified with Ce alone. In addition, XRD results indicate the formation of CeO2 and Ce1-xZrxO2 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+ to Fe3+ inside the tourmaline caused by the change in the catalyst redox properties of CeO2 brought about by doping with Zr4+. In all samples, tourmaline modified with 7.14 wt.% Ce and 1.86 wt.% Zr calcined at 800 degrees C for 5 h has the best far-infrared emission property with the maximum emissivity value of 98%. |
| 文章类型 | Article |
| 关键词 | Tourmaline Cerium-zirconium Oxide Solid Solution Nanoparticle Far-infrared Emission Property Far-infrared Functional Nanocomposites Oxygen Evolution |
| 学科领域 | Physics, Applied |
| WOS标题词 | Science & Technology ; Physical Sciences |
| DOI | 10.1142/S0217984915501833 |
| 收录类别 | SCI |
| 关键词[WOS] | MINERAL COMPOSITE-MATERIALS ; RARE-EARTH ; OXIDATION CATALYSTS ; HEAT-TREATMENT ; RAYS |
| 语种 | 英语 |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Applied ; Physics, Condensed Matter ; Physics, Mathematical |
| WOS记录号 | WOS:000364504900002 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.opt.ac.cn/handle/181661/27494 |
| 专题 | 复合材料与器件先进制造研发中心 |
| 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,Hu, Weijie,et al. Effect of nano-sized cerium zirconium oxide solid solution on far-infrared emission properties of tourmaline powders[J]. MODERN PHYSICS LETTERS B,2015,29(30). |
| APA | Guo, Bin,Yang, Liqing,Hu, Weijie,Li, Wenlong,&Wang, Haojing.(2015).Effect of nano-sized cerium zirconium oxide solid solution on far-infrared emission properties of tourmaline powders.MODERN PHYSICS LETTERS B,29(30). |
| MLA | Guo, Bin,et al."Effect of nano-sized cerium zirconium oxide solid solution on far-infrared emission properties of tourmaline powders".MODERN PHYSICS LETTERS B 29.30(2015). |
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