原子能科学技术Issue(1)：13-18,6.DOI:10.7538/yzk.2015.49.01.0013
DVB 用量对 SDB 结构和Pt-SDB 催化性能影响研究
Influence of DVB Amounts on Structure of SDB and Catalytic Performance of Pt-SDB
摘要
Abstract
The porous styrene‐divinylbenzene (SDB) particles with different cross‐linked structures and large particle size of φ2‐5 mm were synthesized by suspension polymerization method using styrene (St ) as monomer and divinylbenzene (DVB ) as cross‐linking agent .A Pt‐SDB hydrophobic catalyst was then prepared by impregnation‐reduction .The influences of the dosages of DVB on the molecular structure ,thermo‐stability ,porous structure ,compressive strength ,hydrophobic property ,the dispersion of Pt and the catalytic activity of SDB were investigated by FT‐IR ,TG ,N2 adsorption‐desorption , electronic universal testing machine , CA , FSEM and hydrogen‐water exchange test .The results show that the thermo‐stabilities ,compressive strengths and hydrophobic properties are improved obviously , the dispersion of Pt increases significantly ,the specific surface area and pore volume increase by degrees and the average pore diameter reduces gradually with the increase of the amount of the cross‐linking agent . When the molar ratio of DVB to St is 1 ∶ 1 , the carrier of SDB hydrophobic catalyst has good performance .The SDB hydrophobic catalyst has excellent column efficiencies up to 95.6% at 65 ℃ and 96.1% at 80 ℃ .关键词
大粒径SDB/Pt-SDB/氢-水交换/催化活性Key words
large particle size SDB/Pt-SDB/hydrogen-water exchange/catalytic activity分类
化学化工引用本文复制引用
缑可贞,刘才林,杨海君,任先艳,刘敏..DVB 用量对 SDB 结构和Pt-SDB 催化性能影响研究[J].原子能科学技术,2015,(1):13-18,6.基金项目
四川省非金属复合与功能材料重点实验室开放基金资助项目 （）
