一步炭化-活化法制备球形活性炭及其储氢性能研究  

Preparation of spherical activated carbon by one-step carbonization-activation method and its hydrogen storage performance study

作　　者：姜玉坤 顾彬[2] 刘梦洋 薛伟洋 孙承林[2] Jiang Yukun;Gu Bin;Liu Mengyang;Xue Weiyang;Sun Chenglin(College of Chemical Engineering,Shenyang University of Chemical Technology,Shenyang 110142;Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023)

机构地区：[1]沈阳化工大学化学工程学院,沈阳110142 [2]中国科学院大连化学物理研究所,大连116023

出　　处：《化工新型材料》2024年第11期131-135,共5页New Chemical Materials

基　　金：国家重点研发计划项目(2023YFE0101000)。

摘　　要：氢能是一种清洁高效的能源,但缺乏高效的氢气储运方式,因而制约了氢能产业的发展。以强酸性聚苯乙烯树脂为原料,KOH为活化剂,通过一步炭化-活化法制备了多孔树脂基球形活性炭,并对样品进行了表征和储氢性能研究。实验结果表明,KOH质量分数为30%、炭化温度为750℃时,制备的球形活性炭比表面积为2158m^(2)/g,总孔容为1.12cm^(3)/g。该样品综合储氢性能最优,在温度-196℃、压力1MPa条件下,质量储氢密度可达3.14%,体积储氢密度为11.47kg/m^(3)。Hydrogen energy is a clean and efficient energy source,but the lack of efficient methods for hydrogen storage and transportation restricts the development of the hydrogen energy industry.Herein,porous resin-based spherical activated carbon was prepared by one-step carbonization-activation method using strong acid polystyrene resin as raw material and KOH as activator.The physicochemical properties and hydrogen storage performance of samples were characterized and studied.The results showed that the specific surface area and pore volume of the sample prepared with 30wt.%of KOH and carbonizing at 750℃were 2158m^(2)/g and 1.12cm^(3)/g,respectively.This sample exhibited the best hydrogen storage performance,with a mass hydrogen storage density of 3.14%and a volume hydrogen storage density of 11.47kg/m^(3)under the conditions of-196℃and 1MPa pressure.

关 键 词：球形活性炭 聚苯乙烯树脂 一步炭化-活化法 氢气存储 物理吸附 

分 类 号：TQ016[化学工程]