文献类型：期刊文献

英文题名：Rare Earth-Modified Kaolin/NaY-Supported Pd-Pt Bimetallic Catalyst for the Catalytic Combustion of Benzene

作者：Zuo, Shufeng[1];Sun, Xuejie[2];Lv, Ningning[1];Qi, Chenze[1]

机构：[1]Shaoxing Univ, Zhejiang Key Lab Alternat Technol Fine Chem Proc, Shaoxing 312000, Peoples R China;[2]Esteve Huayi Pharmaceut Co Ltd, Shaoxing 312000, Peoples R China

年份：2014

卷号：6

期号：15

起止页码：11988

外文期刊名：ACS APPLIED MATERIALS & INTERFACES

收录：SCI-EXPANDED(收录号：WOS:000340446300025)、、EI(收录号：20143518096388)、Scopus(收录号：2-s2.0-84906264346)、WOS

基金：The support from the Nature Science Foundation of China (No. 21203124) and the Foundation of Science and Technology of Shaoxing Bureau (No. 2012B70023) are gratefully acknowledged and appreciated.

语种：英文

外文关键词：kaolin/NaY; rare earth; Pd-Pt; volatile organic compounds; catalytic combustion

外文摘要：A new type of porous kaolin/NaY composite (KL-NY) with a large specific surface area and large pore sizes was synthesized through a one-step crystallization process, and rare earth-modified KL-NY-supported Pd-Pt catalysts were studied for benzene combustion. The results indicated that the pore volume and specific surface area of KL-NY after calcination and crystallization were 0.298 cm(3)/g and 365 m(2)/g, respectively, exhibiting appropriate pore structure and good thermal stability. Catalysts with rare earth metals greatly enhanced the activity of Pd/KL-NY, and the addition of Pt and Ce into the Pd catalyst improved the catalytic activity as well as the stability. The catalyst with an optimal Ce content and Pt/Pd molar ratio (0.2%Pd-Pt (6:1)/6%Ce/KL-NY) demonstrated the best activity for the complete oxidation of benzene at 230 degrees C, and the catalyst above maintained the 100% benzene conversion for 960 h.