氧化亚铜晶体的形貌控制合成
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摘要
利用乙酸铜为铜源,葡萄糖为还原剂,在无表面活性剂条件下详细考察OH-浓度对铜液相还原过程的影响,通过控制不同晶面的相对生长速度进而控制Cu2O形貌演进,合成了不同形貌的氧化亚铜晶体。结果表明,低OH-浓度有利于<111>方向的生长,高OH-浓度有利于<100>方向的生长,且该趋势随反应时间的延长而更加显著。
Using copper acetate as copper sources, glucose as reductants, the cuprous oxide crystals with different shapes were synthesized without the assist of surfactant. The effect of OH-concentration on the copper liquid-phase reduction process was detailed examined. It was revealed that adjusting the concentration of OH-could control the relative growth rate of different Cu2 O crystal planes, and thus the evolution and transformation of Cu2 O morphology could be regulated. Low OH-concentration is beneficial to the growth of <111> direction, whereas high OH-concentration favors the growth of <100> direction, and this trend is more significant with the prolongation of reaction time.
Using copper acetate as copper sources, glucose as reductants, the cuprous oxide crystals with different shapes were synthesized without the assist of surfactant. The effect of OH-concentration on the copper liquid-phase reduction process was detailed examined. It was revealed that adjusting the concentration of OH-could control the relative growth rate of different Cu2 O crystal planes, and thus the evolution and transformation of Cu2 O morphology could be regulated. Low OH-concentration is beneficial to the growth of <111> direction, whereas high OH-concentration favors the growth of <100> direction, and this trend is more significant with the prolongation of reaction time.
引文
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[2]Hua Q,Cao T,Gu X K,et al.Angewandte Chemie[J].2014,126(19),4956-4961.
[3]Leng M,Yu C,Wang C.Cryst Eng Comm[J].2012,14(24):8454-8461.
[4]Sun S,Song X,Sun Y,et al.Catalysis Science&Technology[J].2012,2(5):925-930.
[5]Lan X,Zhang J,Gao H,et al.Cryst Eng Comm[J].2011,13(2):633-636.