高密度间苯二酚-甲醛碳气凝胶ICF靶的制备与吸附性能研究
Preparation and adsorption properties of high density resorcinol-formaldehyde carbonized aerogel ICF target
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摘要: 以间苯二酚和甲醛为前驱体，通过改进传统制备技术解决了高密度间苯二酚-甲醛(CRF)碳气凝胶制备过程中的龟裂问题，制备出了符合ICF实验需要的高密度CRF碳气凝胶材料。分别对CRF碳气凝胶的元素组成和物相组成进行了鉴定，采用自动吸附仪考察了CRF碳气凝胶对N2和H2的吸附性能。结果表明：该碳气凝胶是一种由C元素组成的类似石墨结构的非晶固态材料，结构均匀性好，具有良好的机械加工性能，比表面积达676 m2·g-1，平均孔径为7.16 nm；氢吸附质量分数达2.28%，相应体积密度为17.83 kg·m-3。Abstract: High density resorcinol-formaldehyde carbonized aerogel(CRF) ICF target was prepared from resorcinol and formaldehyde by improving synthesis conditions, and the cracking problem of high density CRF aerogels was solved. The elements and phase of CRF carbonized aerogels were analyzed. N2 and H2 adsorption properties of the aerogels were analyzed with Autosorb-1. The results show that the CRF carbonized aerogels is a kind of non-crystalline graphite-like solids mainly composed of carbon, the aerogels has homogeneous structure and excellent processable characteristic. The specific surface area and the average pore diameter of the aerogels are 676 m2·g-1 and 7.16 nm, respectively. The aerogel has a favorable hydrogen adsorption with a mass percent of 2.28% and a volumetric density of 17.83 kg?
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Key words:
- crf /
- carbonized aerogel /
- icf /
- adsorption /
- hydrogen
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