石墨烯/层状双氢氧化物(Gr/LDH)纳米复合材料多变的层状立体结构使其具有比表面积大、功率密度高、机械性能稳定、成分可调控等优良性能,成为储能材料领域备受关注的材料之一。概述了Gr/LDH复合材料的特点及制备方法,并对复合材料在超级电容器领域的应用研究进展进行了评述。Gr/LDH的制备方法有水热合成法、共沉淀法、剥离重堆积法、层层自组装法等。通过制备方法的改进,复合材料可得到更加合理的微观形貌特征,在超级电容器电极材料领域亦表现出更广阔的应用前景。
Graphene/layered double hydroxides (Gr/LDH) nanocomposites have recently became one of the eye-catching material in the field of energy storage material science because of its superior properties such as large specific surface areas,high power density,stable mechanical properties and the adjustability of its composition.The properties and preparation methods of Gr/LDH were primarily summarized.Research progress of Gr/LDH in application of supercapacitor was reviewed.The widely used preparation methods of Gr/LDH were hydrothermal synthesis,co-precipitation synthesis,exfoliation-restacking synthesis,the self-assembly synthesis and so on.According to improving the preparation methods,micro morphological characteristics of Gr/LDH can be optimized and showed a wide range of application in the supercapacitor electrode materials.
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基金资助
国家自然科学基金(21676034);重庆市教委项目(KJ1503107)
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