典型文献
Influence of the ZSM-5 Support Acidity on the Catalytic Performance of Pd/ZSM-5 in Lean Methane Oxidation
文献摘要：
A Ithough zeolites are characterized by their special acidic properties,there is still no clear consensus on the effect of zeolite support acidity on the catalytic activity of supported Pd catalyst in methane oxidation.Herein,a series of Pd/H-ZSM-5 and Pd/Silicalite-1 catalysts was prepared by the deposition-precipitation method and used in lean methane oxidation.The effect of ZSM-5 support acidity on the catalytic performance of Pd/ZSM-5 was investigated.The results indicate that with the decrease of Si/AI ratio(x),viz.,the increase of acid sites in H-ZSM-5(x),the catalytic activity of Pd/H-ZSM-5(x) increases substantially;the activity of various catalysts in the lean methane oxidation decreases in the order of Pd/H-ZSM-5(28)＞Pd/H-ZSM-5(48)＞Pd/H-ZSM-5(88)＞Pd/H-ZSM-5(204)＞Pd/Silicalite-1.Furthermore,various characterization measures reveal that the catalytic activity of Pd/H-ZSM-5(x) in lean methane oxidation is mainly related to the Lewis acid sites in the H-ZSM-5 support,whereas less relevant to the Brφnsted acid sites.The abundant Lewis acid sites in H-ZSM-5 are capable to enhance the interaction between the Pd species and H-ZSM-5 support,which can inhibit the agglomeration of Pd particles and improve the dispersion of Pd species,and thus boost the catalytic activity of Pd/H-ZSM-5 in methane oxidation.
文献关键词：
中图分类号：
作者姓名：
LUO Li;WANG Sen;WU Zhiwei;QIN Zhangfeng;DONG Mei;WANG Jianguo;FAN Weibin
作者机构：
State Key Laboratory of Coal Conversion,Institute of Coal Chemistry,Chinese Academy of Sciences,Taiyuan 030001,P.R.China;University of the Chinese Academy of Sciences,Beijing 100049,P.R.China
文献出处：
引用格式：
[1]LUO Li;WANG Sen;WU Zhiwei;QIN Zhangfeng;DONG Mei;WANG Jianguo;FAN Weibin-.Influence of the ZSM-5 Support Acidity on the Catalytic Performance of Pd/ZSM-5 in Lean Methane Oxidation)[J].高等学校化学研究（英文版）,2022(01):229-236
A类：
Acidity,Ithough
B类：
Influence,ZSM,Support,Catalytic,Performance,Pd,Lean,Methane,Oxidation,zeolites,characterized,by,their,special,acidic,properties,there,still,no,clear,consensus,effect,acidity,catalytic,activity,supported,methane,oxidation,Herein,series,Silicalite,catalysts,was,prepared,deposition,precipitation,method,used,lean,performance,investigated,results,indicate,that,viz,sites,increases,substantially,various,decreases,order,Furthermore,characterization,measures,reveal,mainly,related,Lewis,whereas,less,relevant,Br,nsted,abundant,capable,enhance,interaction,between,species,which,can,inhibit,agglomeration,particles,improve,dispersion,thus,boost
AB值：
0.416138
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
