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liuliang_045木虫 (正式写手)
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乙醇可以还原氯金酸生成纳米金吗？已有10人参与
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看到一篇文献说是用乙醇还原氯金酸，在四氧化三铁纳米粒子存在的情况下可以制备得到核壳型的纳米材料，对于乙醇能够还原我了解的比较少，也没查到资料，请问各位，乙醇是能够还原氯金酸吗？ 文献原话： The coating experiment was done by reduction of HAuCl4 in an ethanol solution [2]. Approximately 4 mg magnetite nanoparticles suspended in ethanol (1 ml) with 2 ml of HAuCl4 aqueous solution. Schematic reaction is shown in Fig. 1a. The sample was stirred in a sonication bath from time to time for 2 h at room temperature. The resulting mixture turned dark red during sonication. After that time solution was allowed to stand unmixed form about 15 min, then the prepared magnetite–gold nanocomposites were separated from the colloid by a permanent magnet. Resulting nanoparticles were washed three times with distilled water for use in further experiments. B. Kalska-Szostko et al. / Applied Surface Science 258 (2012) 2783– 2787 他提到的参考文献好像也并不是完全一样的做法。这是参考文献2的信息： Hindawi Publishing Corporation Journal of Nanomaterials Volume 2009, Article ID 962021, 5 pages doi:10.1155/2009/962021 |
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14楼2014-03-17 09:42:44
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2楼2013-05-17 12:25:55
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4楼2013-05-17 15:21:18