共查询到18条相似文献,搜索用时 125 毫秒
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湿化学法制备准一维纳米材料的研究进展 总被引:1,自引:0,他引:1
介绍了湿化学法制备准一维纳米材料的特点:产品纯度高、产物的形貌可控,且设备简单、操作方便及成本低等;综述了水热(溶剂热)法、微乳液法、水热-微乳液法、离子液体法、超声化学法制备准一维纳米材料的最新研究进展;并详细阐述了微乳液法制备准一维纳米材料的影响因素。 相似文献
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室温离子液体(ionic liquids, ILs)作为一种新型的绿色环保溶剂,由于其特殊的功能化结构及热稳定性好、挥发度低和溶解能力强等特点,目前被广泛应用于纳米材料的制备领域。本文重点介绍了离子液体在纳米材料制备中的应用及相关研究的最新进展,结合一些示例对本领域进行了概述,其中包括离子液体作为溶剂,例如作为反应介质和稳定剂;模板剂,例如利用离子液体的微结构(胶束和囊泡、液晶凝胶、乳液和微乳液)作为纳米材料合成中的模板和软模板;反应物,例如作为反应中的还原剂和反应组分;以及离子液体微乳液在纳米材料制备中的特殊用法进行了总结,并讨论了离子液体在快速发展的纳米材料制备领域中的存在挑战和机遇。 相似文献
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金属纳米材料是一种具有优异性能的新型功能材料,使用范围非常广泛。离子液体作为一种绿色环保溶剂与传统溶剂相比具有很多特殊性质,为金属纳米粒子的制备开辟了一条新途径。本文就近年来国内外相关研究进展,对离子液体在金属纳米颗粒制备中的应用进行综述。 相似文献
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溶剂热法合成纳米材料的研究进展 总被引:3,自引:0,他引:3
本文介绍了溶剂热法的特点,综述了溶剂热法在非氧化物纳米材料如Ⅲ-Ⅴ族半导体、金刚石、碳化物、氮化物、金属硫属化合物及一维纳米材料制备中的研究进展,并对溶剂热法合成纳米材料的发展方向进行了展望。 相似文献
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Lu Lu Genhua Wu Yanjie Dong Junwei Wang Guoliang Bai 《Journal of Porous Materials》2016,23(3):671-678
Green and facile fabrication of self-supporting nanoporous gold electrodes (NPGE) was successfully achieved in an air/water-stable Lewis acid ionic liquid [Choline]Cl·2ZnCl2 via electrochemical method. In this medium, the effects of the scan cycle at different temperatures on the preparation process were investigated firstly. It was found that the Au–Zn alloy and porous structure could be formed at the temperature as low as 50 °C after five cycles and at 90 °C only after one cycle, indicating the easier formation of the porous structure in the present ionic liquid than that in the reported solvents. The porous structure was formed directly on the gold surface and the NPGE could catalyze the oxidation of glucose without any modification or covered film. The electrocatalytic ability of the NPGEs for glucose oxidation was evaluated in the neutral and alkaline solutions. Ionic liquids were correlated closely with the dissolution and conversation of glucose. The effect of three ionic liquids (choline acetate, 1-butyl-3-methylimidazolium tetrafluoroborate and 1-butyl-3-methylimidazolium chloride) on the conversation of glucose on the NPGE was studied. These ionic liquids had great influence on the electrochemical signal of glucose and inhibited the catalytic ability of the NPGE. Glucose was electrochemically detected on the best NPGE in neutral medium finally. This work introduced a green and facile method for the fabrication of the self-supporting NPGE, expanded the application of gold nanomaterials in the electrocatalysis for glucose and provided a scientific support for the effect of ionic liquids on the conversation of glucose. 相似文献
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离子液体(ILs)具有蒸气压低、液程宽、热稳定性好、结构和性质可调节等特点, 作为反应溶剂、模板剂或结构导向剂等在纳米材料制备领域得到了广泛的应用。纳米ZnO在传感器、太阳能电池、光催化和发光二极管等领域具有广泛的应用。总结了近年来ILs在纳米ZnO材料制备中的研究进展, 重点归纳和比较了常规非质子型ILs、质子型ILs、碱性ILs和聚ILs在制备纳米ZnO中的应用,及其调控纳米ZnO形貌、尺寸和性能的作用特点, 并为今后ILs应用于金属纳米材料的制备提出了建议。 相似文献
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纳米纤维素因其优异的性能和独特的结构在很多领域都受到了关注,其制备和应用已成为相关领域的研究热点。目前纳米纤维素的制备方法众多,但依然面临着较大的挑战。离子液体因其对木质纤维素优良的溶解性能及可回收性,在纳米纤维素制备中展现了较大的潜力。基于此,综述了离子液体在纳米纤维素制备方面的应用进展,重点介绍了离子液体作为预处理手段在纳米纤维素制备方面的应用现状,以及作为溶剂和催化剂直接水解制备纳米纤维素方面的研究进展,并对制备过程中离子液体的回收情况进行了简单概述。 相似文献
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Synthesis, characterization, and application of 1-d cerium oxide nanomaterials: a review 总被引:1,自引:0,他引:1
The present work provides a comprehensive overview of the recent progress of research work toward developing new one dimensional (1-D) ceria (CeO(2)) nanomaterials. The review has been classified into three parts: the preparation procedures with identification of the existing different dimensional ceria nanomaterials, the formation mechanisms, and an analysis of their applications. From literature survey, it is inaugurated that the fundamental structures of the ceria nanomaterials constructively dominate their properties and applications. In addition, this work will also provide a perspective on the future technical trends for the development of different dimensional CeO(2) nanomaterials. 相似文献