中微孔活性炭负载铂催化剂制备及其催化降解乙醇性能  

Study on platinum catalyst supported on microporous activated carbon and its catalytic degradation of ethanol

作　　者：李安越 陈彦[1] 邵宇[2] 田茂江 LI Anyue;CHEN Yan;SHAO Yu;TIAN Maojiang(College of Materials Engineering,Fujian Agriculture and Forestry University,Fuzhou,Fujian 350100,China;State Key Laboratory of Photocatalysis on Energy and Environment Research Institute of Photocatalysis,Fuzhou University,Fuzhou,Fujian 350108,China)

机构地区：[1]福建农林大学材料工程学院,福建福州350100 [2]福州大学能源与环境光催化国家重点实验室,福建福州350108

出　　处：《福州大学学报（自然科学版）》2022年第2期264-270,共7页Journal of Fuzhou University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(21673044,21978051)。

摘　　要：分别以具有中微孔、微孔和中孔的颗粒活性炭为载体,制备Pt负载的铂炭催化剂.使用BET、SEM、XPS、TEM等对所制备的材料进行物性结构表征;使用固定床反应器表征铂炭催化剂对乙醇的热催化降解性能.研究表明,Pt负载量为0.05%(质量分数)、载体具有微孔和中孔混合结构的铂炭催化剂,在280℃时乙醇的降解率为87.81%,远优于相同Pt负载量、载体为单纯微孔(降解率57.89%)和单纯中孔(降解率62.26%)结构的铂炭催化剂.120 h的老化实验表明,中微孔铂炭催化剂具有良好的热催化稳定性.Platinum carbon catalysts with low Pt loading were prepared by using granular activated carbon with medium micropore,microporous and mesoporous as support.BET,SEM,XPS,TEM,etc.were used to characterize the physical properties of the prepared materials.A fixed-bed reactor was used to characterize the thermal catalytic degradation performance of Pt/C catalysts for ethanol.The results showed that the Pt/C catalyst with a Pt loading of 0.05%(mass fraction)and a carrier with a microporous and mesoporous mixed structure had a degradation rate of 87.81%to ethanol at 280℃,which was much better than the same Pt loading and a simple microporous carrier(degradation rate 57.89%)and pure mesoporous(degradation rate 62.26%)platinum-carbon catalyst.The 120 h aging experiment showed that the Pt/C catalyst with medium micropores had good thermal stability.

关 键 词：铂碳催化剂 乙醇 中微孔颗粒活性炭 Pt负载 降解 热催化 

分 类 号：TQ426.62[化学工程] O643.361[理学—物理化学]