| 纳米NiAl_2O_4前驱体的电化学合成 |
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| 引用本文： | 朱传高,朱其永,周幸福,褚道葆. 纳米NiAl_2O_4前驱体的电化学合成[J]. 化学研究, 2004, 15(3): 16-19 |
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| 作者姓名： | 朱传高 朱其永 周幸福 褚道葆 |
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| 作者单位： | 1. 淮南师范学院,化学系,安徽,淮南,232001
2. 安徽师范大学,有机化学研究所,安徽,芜湖,241000 |
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| 基金项目： | 安徽省高校青年教师科研资助计划(2004jq185). |
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| 摘 要： | 在乙醇溶液中,按Ni/Al电量比为1∶3依次电解铝片和镍片,制得复合氧化物纳米粉体NiO Al2O3的前驱体NiAl2(OCH2CH3)(8-y)(acac)y[acac为乙酰丙酮基].产物通过红外光谱、X射线衍射、电子透射显微镜进行了表征,同时研究了镍电极在铝醇盐溶液中的电化学行为,讨论了影响电合成镍、铝醇盐配合物的关键因素.实验表明,电解温度控制在54～60℃、导电盐Bu4NBr浓度为0.040～0.045mol/L时,电流效率约为93%.水解后的干凝胶粒径在10nm左右,为纳米NiAl2O4粉体的制备创造了条件.
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| 关 键 词： | 电化学行为 牺牲阳极 电解合成 镍、铝配合物 |
| 文章编号： | 1008-1011(2004)03-0016-04 |
| 修稿时间： | 2004-03-28 |
Electrochemical Synthesis of Nano-sized NiAl2O4 Precursor |
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| ZHU Chuan-gao,ZHU Qi-yong,ZHOU Xing-fu,CHU Dao-bao. Electrochemical Synthesis of Nano-sized NiAl2O4 Precursor[J]. Chemical Research, 2004, 15(3): 16-19 |
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| Authors: | ZHU Chuan-gao ZHU Qi-yong ZHOU Xing-fu CHU Dao-bao |
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| Affiliation: | ZHU Chuan-gao~1,ZHU Qi-yong~1,ZHOU Xing-fu~2,CHU Dao-bao~2 |
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| Abstract: | The precursor NiAl_2(OCH_2CH_3)_((8-y))(acac)_y of the nano-oxide NiAl_2O_4 was prepared by electrochemical dissolution of nickel and aluminum (electricity quantity 1∶3) in ethanol solution. The products were characterized by FT-IR spectrum, XRD, TEM. The influences of temperature and concentration of conductive additive on product yield were also investigated. The experiments shows that the temperature controlled under 54～60℃ and concentration of Bu_4NBr between 0.040～0.045mol/L as conductive additive can enhance current efficiency to 93%, and the xerogel made from the precursor has a narrow size distribution of 10 nm around. |
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| Keywords: | electrochemical behavior sacrificial anode electro-synthesis Ni and Al complex |
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