| 草酸根作用下Co3O4八面体的控制合成 |
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| 引用本文： | 周海,康敏,王曼丽,吴东,吕宝亮.草酸根作用下Co3O4八面体的控制合成[J].人工晶体学报,2017,46(10):2083-2089. |
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| 作者姓名： | 周海 康敏 王曼丽 吴东 吕宝亮 |
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| 作者单位： | 遵义师范学院化学化工学院,遵义 563006;贵州省黔北特色资源?τ醚芯渴笛槭?遵义 563006;中国科学院山西煤炭化学研究所煤转化国家重点实验室,太原,030001 |
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| 基金项目： | 贵州省科技厅项目(QKHJZ[2015]2145;QKHLHZ[2015]7046)，贵州省教育厅项目(QJHKYZ[2015]394 |
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| 摘 要： | 在草酸根的作用下,采用水热法合成了暴露八个(111)晶面的Co3 O4八面体.采用XRD、SEM、TEM和HRTEM等手段对产物进行了表征和分析,结果表明该Co3 O4八面体呈立方晶相且具有很高的结晶性.详细研究了反应时间、反应温度、草酸根浓度等反应条件对Co3 O4形貌的影响.研究表明草酸根可选择吸附在Co3 O4的(111)晶面,通过其较大的空间位阻限制(111)晶面的生长,从而使该晶面得以最终暴露.由于(111)晶面具有较高的能量,该Co3 O4八面体具有良好的高氯酸铵(AP)催化热分解性能.
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| 关 键 词： | 水热合成 Co3O4八面体 草酸根 AP分解 |
Controllable Synthesis of Co3O4 Octahedra with the Assistance of C2 O2-4 |
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| ZHOU Hai,KANG Min,WANG Man-li,WU Dong,LYU Bao-liang.Controllable Synthesis of Co3O4 Octahedra with the Assistance of C2 O2-4[J].Journal of Synthetic Crystals,2017,46(10):2083-2089. |
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| Authors: | ZHOU Hai KANG Min WANG Man-li WU Dong LYU Bao-liang |
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| Abstract: | Co3 O4 octahedra exposing eight ( 111 ) facets were hydrothermally synthesized with the assistance of C 2 O2-4 .The prepared samples were characterized and analyzed by means of XRD , SEM, TEM and HRTEM.The results indicate that the Co3O4 octahedra exhibited cubic phase with high crystallinity.The influence of reaction time, reaction temperature and C2O2 -4 concentration on the morphology of Co 3 O4 were investigated in detail .It is prove that C 2 O2-4 would preferably adsorb on the (111) facets of Co3O4 nuclei, which would then restrict the further growth of (111) facets due to the larger space of C2O2 -4 than hydroxyl groups leading to the exposure of (111) facets.The present Co3O4 octahedra could catalyze the thermal decomposition of ammonium perchlorate ( AP) effectively due to the exposure of high energy facets . |
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| Keywords: | hydrothermal synthesis Co3 O4 octahedra C2 O2 -4 AP decomposition |
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