不同结构CoPt纳米棒磁学性能

doi:10.3866/PKU.WHXB20101125

Abstract

Abstract:

We prepared two kinds of CoPt nanorods by galvanic displacement reaction and chemical reduction. One type was solid (CoPt?a) and the other was hollow (CoPt?b). Transmission electron microscopy (TEM) and energy?dispersive X?ray spectroscopy (EDS) were used to characterize the shape and composition of the nanorods. The magnetic properties were measured at 5 and 300 K. The coercivities of the CoPt?a and CoPt?b nanorods were found to be 6.5 and 9.3 A·m^-1 at 5 K, respectively. The coercivities decreased to 0 A·m^-1 when the temperature was increased to 300 K. The field cooling (FC) and zero field cooling (ZFC) curves indicated that both the CoPt?a and CoPt?b nanorods are superparamagnetic. The blocking temperatures (T_B) of CoPt ?a and CoPt ?b are 10.0 and 9.0 K, respectively. The different magnetic properties of the two kinds of CoPt nanorods including coercivity, magnetization, and blocking temperature may be due to their different compositions and structures.

Key words: Superparamagnetic, CoPt, Nanorod, Magnetic property

MSC2000:

O646

ZHOU Xin-Wen, ZHANG Rong-Hua, SUN Shi-Gang. Magnetic Properties of CoPt Nanorods with Different Structures[J].Acta Phys. -Chim. Sin., 2010, 26(12): 3360-3364.

References

1. Lewis, L. H.; Kim, J.; Barmak, K. Physica B, 2003: 327
2. Chen, Q.; Ge, H. L.;Wu, Q.;Wei, G. Y.; Shu, K. Y.; Cui, Y. J.; ang, X. Q. Micronanoelectronic Technology, 2006, 4: 181 陈强, 葛洪良, 吴琼, 卫国英, 舒康颖, 崔玉建, 王新庆. 微纳子技术, 2006, 4: 181]
3. Han, X. F.; Shamaila, S.; Sharif, R.; Chen, J. Y.; Liu, H. R.; Liu, D. P. Adv. Mater., 2009, 4: 4619
4. Cortés, M.; G??mez, E.; Vallés, E. Electrochem. Commun., 2010, 12(1): 132
5. Du, X. Y.; Naoki, T.; Hou, X. G.;Wang, X. J. Journal of aterials and Metallurgy, 2008, 7(1): 30. [杜雪岩, 户岛直树, 新刚, 王希靖. 材料与冶金学报, 2008, 7(1): 30]
6. Li, D. D.; Jiang, J. H.; Jiang, C. H. Metallic Functional aterials, 2009, 16(2): 17. [李东栋, 蒋建华, 姜传海. 金属功能料, 2009, 16(2): 17]
7. Khurshid, H.; Huang, Y. H.; Bonder, M. J.; Hadjipanayis, G. C. J. Magn. Magn. Mater., 2009, 321(4): 277
8. Shen, X.; Xu, X.; Jiang, F.; Lv, B.; Tian, B.; Jin, T. Rare Metals, 2007, 26(1): 23
9. Tang, R.; Zhang,W.; Li, Y. J. Alloy. Compd., 2010, 496(1-2): 380
10. Park, J. I.; Cheon, J. J. Am. Chem. Soc., 2001, 123: 5743
11. Choi, J.; Oh, S. J.; Ju, H.; Cheon, J. Nano. Lett., 2005, 5(11): 2179
12. Peng, Y.; Cullis, T.; Moebus, G.; Xu, X.; Inkson, B. Nanotechnology, 2007, 18(48): 485704
13. Zhang, Z.; Blom, D. A.; Gal, Z.; Thompson, J. R.; Shen, J.; Dai, S. J. Am. Chem. Soc., 2003, 125: 7528
14. Vasquez, Y.; Sra, A. K.; Schaak, R. E. J. Am. Chem. Soc., 2005, 127: 12504
15. Zhou, X.W.; Chen, Q. S.; Zhou, Z. Y.; Sun, S. G. J. Nanosci. Nanotechnol., 2009, 9(4): 2392
16. Zhou, X.W.; Zhang, R. H.; Zeng, D. M.; Sun, S. G. J. Solid State hem., 2010, 183: 1340
17. Liang, H. P.; Zhang, H. M.; Hu, J. S.; Guo, Y. G.;Wan, L. J.; Bai, C. L. Angew. Chem. Int. Edit., 2004, 43: 1540
18. Klabunde, K. J. Nanoscale materials in chemistry. New York: illey Interscience, 2001
19. Liang, H. P.; Guo, Y. G.; Hu, J. S.; Zhu, C. F.;Wan, L. J.; Bai, C. L. Inorg. Chem., 2005, 44(9): 3013
20. Tao, F. F.; Xu, Z. Acta Phys. -Chim. Sin., 2009, 25(5): 977 陶菲菲, 徐正. 物理化学学报, 2009, 25(5): 977]
21. Lu, A. H.; Salabas, E. L.; Schüth, F. Angew. Chem. Int. Edit., b>2007, 46: 1222
22. Rong, B.; Li, D.; Nandwana, V.; Poudyal, N.; Ding, Y.;Wang, Z. L.; Zeng, H.; Liu, J. P. Adv. Mater., 2006, 18: 2984
23. Wang, R. H.; Jiang, J. S.; Hu, M. Acta Phys. -Chim. Sin., 2009, 25(10): 2167. [王润涵, 姜继森, 胡鸣. 物理化学学报, 2009, 25(10): 2167]

[1]	Zhimin Jiang, Qing Chen, Qiaoqing Zheng, Rongchen Shen, Peng Zhang, Xin Li. Constructing 1D/2D Schottky-Based Heterojunctions between Mn_0.2Cd_0.8S Nanorods and Ti₃C₂ Nanosheets for Boosted Photocatalytic H₂ Evolution [J]. Acta Phys. -Chim. Sin., 2021, 37(6): 2010059-0.
[2]	Dan Cao,Hua An,Xiaoqing Yan,Yuxin Zhao,Guidong Yang,Hui Mei. Fabrication of Z-Scheme Heterojunction of SiC/Pt/Cds Nanorod for Efficient Photocatalytic H₂ Evolution [J]. Acta Physico-Chimica Sinica, 2020, 36(3): 1901051-0.
[3]	Junyan Xiao, Limin Qi. Controllable Self-Assembly of Gold Nanorods via Host–Guest Interaction between Cyclodextrins and Surfactants [J]. Acta Physico-Chimica Sinica, 2020, 36(10): 1910001-0.
[4]	Jiali FANG, Xin CHEN, Chang LI, Yulian WU. Observation of the Gold Nanorods/Graphene Composite Formation and Motion with in situ Liquid Cell Transmission Electron Microscopy [J]. Acta Physico-Chimica Sinica, 2019, 35(8): 808-815.
[5]	Zhe ZHAO, Yue LU, Zhenhua ZHANG, Manling SUI. In situ Liquid Environmental TEM Observation of Self-Assembly of Oxide Nanoparticles Driven by Electric Charge [J]. Acta Physico-Chimica Sinica, 2019, 35(5): 539-545.
[6]	Ganxing DONG,Chuanhong JIN. Probing the Controlled Oxidative Etching of Palladium Nanorods by Liquid Cell Transmission Electron Microscopy [J]. Acta Phys. -Chim. Sin., 2019, 35(1): 15-21.
[7]	Xue-Jiao HU,Guan-Bin GAO,Ming-Xi ZHANG. Gold Nanorods——from Controlled Synthesis and Modification to Nano-Biological and Biomedical Applications [J]. Acta Phys. -Chim. Sin., 2017, 33(7): 1324-1337.
[8]	Jun-Jun CHEN,Cheng-Wu SHI,Zheng-Guo ZHANG,Guan-Nan XIAO,Zhang-Peng SHAO,Nan-Nan LI. 4.81%-Efficiency Solid-State Quantum-Dot Sensitized Solar Cells Based on Compact PbS Quantum-Dot Thin Films and TiO₂ Nanorod Arrays [J]. Acta Phys. -Chim. Sin., 2017, 33(10): 2029-2034.
[9]	Xiang-Xiang FAN,Xiu-Li HE,Jian-Ping LI,Xiao-Guang GAO,Jian JIA,Zhi-Mei QI. Fabrication and Surface-Enhanced Raman Scattering Properties of an Ag-Coated Polyimide Nanorod Array [J]. Acta Phys. -Chim. Sin., 2016, 32(4): 1036-1042.
[10]	Zheng-Xia XU,Ji-Tao YANG,Kang LIU,Xiao-Qiang GUO. Shape Evolution Behavior of Anatase Titania Nanocrystals via the Solvothermal Method [J]. Acta Phys. -Chim. Sin., 2016, 32(2): 581-588.
[11]	Yuan-You WANG,Guo-Qiang ZHOU,Long ZHANG,Tian-Qing LIU. Synthesis and Photocatalytic Characterization of Porous Cu-Doped ZnO Nanorods [J]. Acta Phys. -Chim. Sin., 2016, 32(11): 2785-2793.
[12]	Yan-Zhong. HAO,Zhi-Min. GUO,Bao. SUN,Juan. PEI,Shang-Xin. WANG,Ying-Pin. LI. Photoelectrochemical Properties of Hierarchical ZnO Nanosheets Micro-Nanostructure Modified with Sb₂S₃ Nanoparticles [J]. Acta Phys. -Chim. Sin., 2015, 31(11): 2109-2116.
[13]	Juan. MA,Feng-Dan. SONG,Ze-Qi. ZHOU,Sui-Tao. QI,Chun-Hai. YI,Bo-Lun. YANG. Preparation and Optimization of Vertically Arrayed Zinc Oxide Nanorods [J]. Acta Phys. -Chim. Sin., 2015, 31(11): 2213-2219.
[14]	WANG Xin-Huan, HAN Qiu-Sen, LI Jing-Ying, YANG Rong, DIAO Guo-Wang, WANG Chen. Seedless Synthesis of Gold Nanorods and Applications in Photo-Thermal Cancer Therapy [J]. Acta Phys. -Chim. Sin., 2014, 30(7): 1363-1369.
[15]	WANG Shi-Mao, DONG Wei-Wei, FANG Xiao-Dong, DENG Zan-Hong, SHAO Jing-Zhen, HU Lin-Hua, ZHU Jun. Modification of Single-Crystal TiO₂ Nanorod Arrays and Its Application in Quantum Dot-Sensitized Solar Cells [J]. Acta Phys. -Chim. Sin., 2014, 30(5): 873-880.

Magnetic Properties of CoPt Nanorods with Different Structures

PDF

Like

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Metrics

Comments

Recommended 0