|
|
- 2018
玻碳材料脉冲电沉积纳米晶体镍的制备及其性能研究
|
Abstract:
摘要 由于纳米晶体镍具有电催化甲醇的活性,本文采用双脉冲法在玻碳表面上电沉积制备了纳米晶体镍，并分析了脉冲条件对其晶粒尺寸的影响。电沉积的溶液组成为300 g·L-1 NiSO4·6H2O，45 g·L-1 NiCl2·6H2O，40 g·L-1 H3BO3，5 g·L-1 C7H5NO3S，0.05 g·L-1 C12H25NaO4S，最优的脉冲工艺参数是脉冲平均电流密度为100 mA·cm-2、脉冲占空比为30%,脉冲频率为100 Hz, pH为1.5、温度为55 oC。利用XRD、TEM、循环伏安以及电化学阻抗分析了纳米晶体镍的晶粒尺寸、结构及性能。制备的电沉积层致密均匀，为典型的面心立方结构，晶体镍的平均粒径在18 nm左右，玻碳材料表面上通过电沉积得到的纳米晶体镍在碱性环境下对甲醇具有良好的电催化活性
| [1] | Zhang L D（张立德）, Mou J M（牟季美）. Nanomaterials and nanostructures[J]. Beijing: Science Press（科学出版社）, 2001: 51-67. |
| [2] | Zhao Y P（赵阳培）, Huang Y H（黄因慧）. Review of pre-paring nanocrystalline materials by electrodeposition[J].Journal of Materials Science and Engineering（材料科学与工程学报）, 2003, 21(1): 126-129. |
| [3] | Xia F F（夏法锋）, Huang M（黄明）, Ma C Y（马春阳）, et al. Effect of electrodeposition methods on corrosion resistance of Ni-SiC nanocomposite coatings[J]. Functional Materials(功能材料), 2013, 16(44): 2429-2431. |
| [4] | Cao M S（曹茂盛）,Guan C B（关长斌）, Xu J Q（徐甲强）, et al. Introduction to nanomaterials[M]. Heilongjiang: Harbin Institute of Technology Press（哈尔滨工业大学出版社）, 2001: 25-110. |
| [5] | Meyers M A, Mishra A, Benson D J. Mechanical properties of nanocrystalline materials[J]. Progress in Materials Science, 2006, 51(4): 427-556. |
| [6] | Koch C C, Youssef K M, Scattergood R O, et al. Breakthroughs in optimization of mechanical properties of nanostructured metals and alloys[J]. Advanced Engineering Materials, 2005, 7(9): 787-794. |
| [7] | Kan H M（阚洪敏）, Wang S（王双）, Zhang N（张宁）, et al. Preparation of Al and Al-Mg alloy at room temperature by electrodeposition[J]. Journal of Shenyang University（Natural Science）(沈阳大学学报自然科学版), 2013, 25(6): 441-444+484. |
| [8] | Kan H M（阚洪敏）. A Method of preparation of Al-Mg alloy at room temperature: China, CN201310299190.7[P]2016-05-25. |
| [9] | Zhang Y B（张玉碧）, Gao X L（高小丽）, Wang D Z（王东哲）, et al. Analysis of mechanism and dynamics for pulse electro-deposition and its verification[J]. Materials Protection（材料保护）, 2011, 44(6): 18-19. |
| [10] | Yang J M（杨建明）,Zhu D（朱荻）, Lei W N（雷卫宁）. Electrodeposited nanocrystalline materials[J]. Material Protection（材料保护）, 2003, 36(4): 1-4. |
| [11] | Wasekar N P, Latha S M, Ramakrishna M, et al. Pulsed electrodeposition and mechanical properties of Ni-W/SiC nano-composite coatings[J]. Materials & Design, 2016, 112: 140-150. |
| [12] | Sharma A, Chhangani S, Madhavan R, et al. Correlation between crystallographic texture, microstructure and magnetic properties of pulse electrodeposited nanocrystalline nickel-cobalt alloys[J]. Journal of Magnetism and Magnetic Materials, 2017, 434: 68-77. |
