1. 毕业设计（论文）的内容和要求

多孔金属材料具有比表面积大，双连续的孔-韧带的规则纳米结构等特征，广泛用于催化剂的基底材料和能源电池中的电极材料。

利用选择溶解过程来制备纳米多孔结构是近年来的研究热点。

基于的zn元素的两性特征，以zn80sn20二元合金作为前驱体合金，在0.1-1m h2so4和0.1-1 m naoh中制备纳米多孔sn,通过调节脱合金溶液浓度和时间，探讨np sn纳米多孔结构的形成规律及孔特征调控方法，构建多孔sn的纳米结构调控方式、方法和最优工艺。

2. 参考文献

[1] 张代东, 王钦清. 金属纳米材料的发展动态研究[J]. 图书情报导刊, 2002, 12(5):89-92. [2] 阚义德, 刘文今, 钟敏霖, 等. 脱合金法制备纳米多孔金属的研究进展[J]. 金属热处理, 2008, 33(3):43-46. [3] 张文彦, 奚正平, 方明, 等. 纳米孔结构金属多孔材料研究进展[J]. 稀有金属材料与工程, 2008, 37(7):1129-1133. [4] 谭秀兰, 唐永建, 刘颖, 等. 去合金化制备纳米多孔金属材料的研究进展[J]. 材料导报, 2009, 23(5):68-71. [5] 丁轶. 纳米多孔金属:一种新型能源纳米材料[J]. 山东大学学报 (理学版), 2011, 46(10):121-133. [6] Zhang C, Sun J, Xu J, et al. Formation and microstructure of nanoporous silver by dealloying rapidly solidified Zn-Ag alloys[J]. Electrochimica Acta, 2012, 63:302-311. [7] Dan Z, Qin F, Takeshi W，et al. Nanoporous palladium fabricated from an amorphous Pd42.5Cu30Ni7.5P20;precursor and its ethanol electro-oxidation performance[J]. Electrochimica Acta, 2013, 108(10):512-519. [8] 张旭海, 董小真, 杨春雷, 等. 金属玻璃脱合金制备高催化性能的多元掺杂纳米多孔Pd[J]. 功能材料, 2013, 24:3634-3637. [9] Dan Z, Qin F, Sugawara Y, et al. Refinement of Nanoporous Copper by Dealloying MgCuY Amorphous Alloys in Sulfuric Acids Containing Polyvinylpyrrolidone, Journal of The Electrochemical Society, 2014, 161 (3):C120-C125. [10] Zhang R, Wang X, Zhang Z, et al. Structure analysis of precursor alloy and diffusion during dealloying of Ag-Al alloy[J]. RSC Advances, 2018, 8(17): 9462-9470. [11] Bhushan B, Murty B S, Mondal K. Dealloying kinetics and mechanism of porosity evolution in mechanically alloyed Ag25Zn75, powder particles[J]. Corrosion Science, 2018, 139: 155#8211;162. [12] Bhushan B, Murty B. S, Mondal, K. Fabrication and mechanical behavior of bulk nanoporous Cu via chemical de-alloying of Cu-Al alloys[J]. Materials Science Engineering A, 2016, 660:241-250. [13] Heiden M, Johnson D, Stanciu L. Surface modifications through dealloying of Fe-Mn and Fe-Mn-Zn alloys developed to create tailorable, nanoporous, bioresorbable surfaces[J]. Acta Materialia, 2016, 103:115-127. [14] Wang Z, Chen C, Jiu J, et al. Electrochemical behavior of Zn- x Sn high-temperature solder alloys in 0.5 M NaCl solution[J]. Journal of Alloys and Compounds, 2017, 716:231-239. [15] Song T, Yan M, Shi Z, et al. Creation of bimodal porous copper materials by an annealing-electrochemical dealloying approach[J]. Electrochimica Acta, 2015, 164:288-296. [16] Ari* M, Saat#231;i B, M G#252;nd#252;z, et al. Thermo-electrical characterization of Sn-Zn alloys[J]. Materials Characterization, 2008, 59(6):757-763. [17] Kong Q, Feng W, Sun C, et al. Controllable fabrication of bulk hierarchical nanoporous palladium by chemical dealloying at various temperature and its thermal coarsening[J]. Journal of Porous Materials, 2017, 25(2):555-563. [18] Dan Z, Qin F, Sugawara Y, et al. Fabrication of nanoporous copper by dealloying amorphous binary Ti-Cu alloys in hydrofluoric acid solutions[J]. Intermetallics, 2012, 29(10):14-20. [19] Tuan N T, Park J, Lee J, et al. Synthesis of nanoporous Cu films by dealloying of electrochemically deposited Cu-Zn alloy films[J]. Corrosion Science, 2014, 80(3):7-11. [20] Jiang H, Li J, Geng H, et al. Influence of cooling rate and addition of lanthanum and cerium on formation of nanoporous copper by chemical dealloying of Cu15Al85 alloy[J]. Journal of Rare Earths, 2013, 31(11):1119-1124.

3. 毕业设计（论文）进程安排

2018.12.20~2019.1.18 查阅中外文资料，撰写开题报告，制定研究方案，熟悉仪器，翻译外文资料 参加讨论 2019.1.19~2019.3.15 前期的实验研究，结果分析 参加讨论 2019.3.16~2019.4.15 撰写中期报告 参加中期检查答辩 2019.4.16~2019.5.15 后期的实验研究，结果分析，补充计算 参加讨论 2019.5.16~2019.6.15 整理数据，撰写论文，准备答辩 参加毕业论文答辩