常温合成硫掺杂微孔碳及其二氧化碳的吸附性能  

Synthesis of Sulfur Doped Porous Carbon at Room Temperature for CO_2 Adsorption

作　　者：郭宁宁 王宇[1] 王润伟[1] 张宗弢[1] 裘式纶[1] 

机构地区：[1]无机合成与制备化学国家重点实验室吉林大学化学学院,长春130012

出　　处：《无机化学学报》2017年第11期2147-2152,共6页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.21390394;21261130584;21771082和91022030);高等学校学科创新引智计划(No.B07016)资助项目

摘　　要：常温下以间苯三酚和3-甲醛苯并噻吩作为原料,一步法合成了含硫酚醛树脂。在氩气保护下碳化,成功制备出了硫掺杂多孔碳(S-PC)。并利用扫描电镜(SEM)、X射线光电子能谱(XPS)、X射线衍射(XRD)和氮气吸附-脱附仪对材料进行了形貌、结构和性能的表征。实验结果表明,所得样品具有较高比表面积和大量的微孔,经过调控,可以使制备的硫掺杂多孔碳的BET比表面积达到997 m2·g^(-1),并使其微孔孔体积达到0.44 cm3·g^(-1)。得益于较高的比表面积以及其富含微孔的特性,当材料应用于二氧化碳吸附时,具有较高的CO2吸附量,在273和298 K时分别高达5.13,3.22 mmol·g^(-1),并具有良好的选择性。Sulfur doped porous carbon（S-PC） were obtained by direct carbonization of sulfur containing phenolic resins, which were synthesized through one step reaction between phloroglucinol and benzo [b]thiophenc-3-carboxaldehyde under room temperature. The material was characterized by scanning electron microscope（SEM）,X-ray photoelectron spectroscopy（XPS）, X-ray diffraction（XRD） and N2 sorption-desorption experiments. The obtained porous carbons possess high surface area with abundant of micropores. What ′s more, ultra-high surface area of 997 m2·g-1 along with ultra-large micropore volume of 0.44 cm3·g-1 could be obtained after carefully regulation the concentration of reactants. Owing to these fascinating characters like high surface area and rich of micropores, both high CO2 uptake capacity（ 5.13 and 3.22 mmol·g-1 for 273 and 298 K respectively） and high selectivity was obtained, which indicating it′s promising sorbents for CO2.

关 键 词：硫掺杂多孔碳 酚醛树脂 CO2吸附 

分 类 号：O613.71[理学—无机化学]