煤基活性炭的制备及储氢性能研究  

Preparation and Hydrogen Storage Performance of Coal-based Activated Carbon

作　　者：王娅娅 武晋雄 WANG Yaya;WU Jinxiong(College of Chemistry and Chemical Engineering,Yili Normal University,Xinjiang Yining 835000;Key Laboratory of Chemistry and Chemical Engineering on Heavy-Carbon Resources,Yili Normal University,Xinjiang Yining 835000,China)

机构地区：[1]伊犁师范大学化学化工学院,新疆伊宁835000 [2]伊犁师范大学重质碳资源化学与化工重点实验室,新疆伊宁835000

出　　处：《广州化工》2024年第21期175-179,共5页GuangZhou Chemical Industry

基　　金：伊犁师范大学校级项目(2019YSDX027)。

摘　　要：氢能具有清洁无碳、绿色高效、可再生等特点,作为可持续能源载体,活性炭是一种有潜力的物理吸附储氢材料,因而被广泛研究。以煤为原料,KOH化钾做活化剂,探究了煤与活化剂的混合方式、煤预处理、负载不同量金属Pd制备的煤基活性炭对氢吸附性能的影响。结果表明:在活性炭表面负载1%,2.5%,5%不同量pd改性后,由于H_(2)分子的溢出效应可有效的提高活性炭的储氢能力,其中负载量1%适中且纳米颗粒分散均匀的样品储氢量可提高到4.5wt%。Hydrogen has the characteristics of clean and carbon-free,green and efficient and renewable energy,so it is a promising sustainable energy carrier.Activated carbon,as a potential physical adsorption hydrogen storage material,has been widely studied.Using coal as the raw material,potassium hydroxide(KOH) as the activator,the effects of the mixing method of coal and activator,coal pretreatment,and the loading of different amounts of metal Pd on the hydrogen adsorption performance of coal-based activated carbon were explored.The results showed that by loading 1%,2.5% and 5% of Pd on the surface of activated carbon after modification,the hydrogen adsorption capacity of activated carbon can be effectively improved due to the outflow effect of H_(2) molecules.Among them,the sample with a moderate loading of 1% and uniform nanoparticle dispersion had a hydrogen storage capacity of up to 4.5wt%.

关 键 词：活性炭 负载 氢溢流 吸附 储氢 

分 类 号：TQ424.1[化学工程]