| 在酸性条件下合成氧化亚铜纳米立方体(英) |
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| 引用本文： | 朱红飞,陈乾旺,牛和林,彭振猛,孙 钱. 在酸性条件下合成氧化亚铜纳米立方体(英)[J]. 无机化学学报, 2004, 20(10): 1172-1176 |
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| 作者姓名： | 朱红飞 陈乾旺 牛和林 彭振猛 孙 钱 |
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| 作者单位： | 中国科技大学结构分析重点实验室和化学与材料学院,合肥,230026 |
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| 摘 要： | 在微酸性(pH：4～6)的水热体系中130 ℃反应18 h合成了氧化亚铜纳米粒子，粒径约为100 nm，呈立方体外形。乙二胺和十六烷基胺在反应体系中充当缓冲试剂，调节反应液的pH值并控制体系中游离Cu2+的浓度，使得Cu2+不会被迅速还原成单质铜。所合成的纳米立方体的能带宽度约为2.51 eV，比氧化亚铜体材料和氧化亚铜纳米线蓝移了0.51 eV和0.17 eV，它有利于把太阳光谱中能量高的可见光转化成其他形式的能量。
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| 关 键 词： | 纳米立方体 酸性条件 氧化亚铜 |
Growth of Cuprite Nanocubes under Acidic Conditions |
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| ZHU Hong-Fei,CHEN Qian-Wang,NIU He-Lin,PENG Zhen-Meng and SUN Qian. Growth of Cuprite Nanocubes under Acidic Conditions[J]. Chinese Journal of Inorganic Chemistry, 2004, 20(10): 1172-1176 |
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| Authors: | ZHU Hong-Fei CHEN Qian-Wang NIU He-Lin PENG Zhen-Meng SUN Qian |
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| Affiliation: | Structure Research Laboratory and Department of Materials Science & Engineering, University of Science & Technology of China, Hefei 230026,Structure Research Laboratory and Department of Materials Science & Engineering, University of Science & Technology of China, Hefei 230026,Structure Research Laboratory and Department of Materials Science & Engineering, University of Science & Technology of China, Hefei 230026,Structure Research Laboratory and Department of Materials Science & Engineering, University of Science & Technology of China, Hefei 230026 and Structure Research Laboratory and Department of Materials Science & Engineering, University of Science & Technology of China, Hefei 230026 |
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| Abstract: | A novel hydrothermal approach was developed to prepare cuprite at 130 ℃ for 18 h under slightly acidic conditions(pH:4～6).The yielded particles are,about 100 nm in size,cubic in shape.It was found that diaminoethane and hexadecylamine acting as the buffering reagents for controlling the pH value and concentration of free Cu2+ in the solution play a critical role to avoid Cu2+ being reduced to Cu. The band gap of the nanocubes is about 2.51 eV,which is blue shifted 0.51 eV compared to that of the corresponding bulk material and 0.17 eV compared to that of the nanowires of cuprite.The material could be a promising candidate in solar energy conversion since the sample can make use of higher energy visible lights of solar spectrum.PACS:71.35.Cc. |
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| Keywords: | nanocubes acidic conditions Cu2O |
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