Preparation and adsorption properties of high density resorcinol-formaldehyde carbonized aerogel ICF target
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·m-3.