摘要
报道了通过共沉淀法制备膨胀石墨基CaxZny（OH）2（x＋y）纳米复合太阳能化学蓄热材料的过程和材料特征。以膨胀石墨为基体，将复合的Ca（OH）2和ZnO微粒加入到多孔基体中，制备出膨胀石墨基CaxZn，（0H）2（x＋y）纳米复合材料，通过扫描电子显微镜、能谱仪、差热热重分析仪和X射线衍射仪对所制材料的形貌、吸附特性、复合尺度、热力学性能进行了分析测试。研究结果表明，所合成的材料大部分组分为Ca（Zn（OH）3）2，复合材料的晶体尺寸粒径在31。2～86。4nm范围内，其脱水温度为151。
The preparation and characterization of solar energy chemical storage material graphite-CaxZny（OH）2（x＋y） are reported in the present paper, which is prepared by co-precipitation technique. It is a new type of nano-composite material for solar energy chemical storage. Firstly, calcium hydroxide and zinc oxide are co-precipitated into the expanded porous graphite matrix in nano-scale; then the product is analyzed by scanning electron microscope （SEM）, energy dispersive spectroscopy （EDS）, differential thermal-thermogravimetric analyzer （DT-TGA）. The results show that the product consists of Ca（Zn（OH）3）2 mostly; the grain is with size of 31.2 to 86.4 nm; and the dehydration temperature is 151.38℃.
出处
《科学通报》
EI
CAS
CSCD
北大核心
2014年第3期267-272,共6页
Chinese Science Bulletin
基金
陕西省重大科技创新专项(2011ZKC07-4)资助
作者简介
联系人，E-mail：mszhengnw@sohu．com
