| 电解腐蚀合成铋纳米粉的热氧化性 |
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| 引用本文： | 房国丽,王雄. 电解腐蚀合成铋纳米粉的热氧化性[J]. 宁夏大学学报(自然科学版), 2011, 32(4): 362-364,370 |
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| 作者姓名： | 房国丽 王雄 |
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| 作者单位： | 1. 北方民族大学材料科学与工程学院,宁夏银川750021;南京理工大学材料科学与工程学院,江苏南京210094
2. 南京理工大学材料科学与工程学院,江苏南京,210094 |
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| 基金项目： | 国家民委粉体与陶瓷重点实验室开放基金资助项目(1002);宁夏高等学校科学研究基金资助项目(2011JY006) |
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| 摘 要： | 以块体金属Bi为阳极牺牲材料,通过电化学腐蚀可以控制合成厚度为20～30 nm的准二维金属Bi纳米片,进一步在空气中热处理可以氧化生成Bi2O3.研究结果表明:所得Bi纳米片由于尺寸较小和比表面积较大,其热氧化温度相对于文献报道明显降低；而热处理温度是影响热氧化形成Bi2O3晶体结构的关键因素.
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| 关 键 词： | 电解腐蚀合成 铋纳米粉 热氧化性 |
Thermal Oxidation Stability of Bi Nanoparticles Prepared by Electrolytic Corrosion |
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| Fang Guoli , Wang Xiong. Thermal Oxidation Stability of Bi Nanoparticles Prepared by Electrolytic Corrosion[J]. Journal of Ningxia University(Natural Science Edition), 2011, 32(4): 362-364,370 |
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| Authors: | Fang Guoli Wang Xiong |
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| Affiliation: | 1.School of Materials Science and Engineering,Beifang University of Nationalities,Yinchuan 750021,China; 2.School of Materials Science and Engineering,Nanjing University of Science and Technology,Nanjing 210094,China) |
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| Abstract: | The quasi two dimensional Bi nanosheets have been controlled synthesized via electrolytic corrosion of bulk Bi. The obtained Bi nanosheets with 20-30 nm in thickness are thermally treated in air at different temperature, and the oxidation would take place in the process. Results show that the synthesized Bi nanosheets with smaller sizes and higher specific surface area need lower oxidation temperature, and the oxidation temperature is the key to the Bi203 crystal structures synthesized by thermal oxidation of the Bi nanosheets. |
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| Keywords: | electrolytic corrosion Bi nanoparticles thermal oxidation stability |
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