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Pd/Al₂O₃催化剂上CH₄转化涉及的反应途径：TAP作为阐明金属/载体界面有效作用的有力工具

Reaction Pathways Involved in CH4 Conversion on Pd/Al2O3 Catalysts: TAP as a Powerful Tool for the Elucidation of the Effective Role of the Metal/Support Interface.

作者信息

Renème Y, Pietrzyk S, Dhainaut F, Chaar M, van Veen A C, Granger Pascal

机构信息

Unité de Catalyse et de Chimie du Solide, UMR Centre National de la Recherche Scientifique 8181, Université Lille 1 - Sciences et Technologies Villeneuve d'Ascq, France.

Unité de Catalyse et de Chimie du Solide, UMR Centre National de la Recherche Scientifique 8181, Université Lille 1 - Sciences et TechnologiesVilleneuve d'Ascq, France; Ecole Nationale Supérieure de Chimie de LilleVilleneuve d'Ascq, France.

出版信息

Front Chem. 2016 Feb 16;4:7. doi: 10.3389/fchem.2016.00007. eCollection 2016.

DOI:10.3389/fchem.2016.00007
PMID:26909345
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4754408/
Abstract

Temporal Analysis of Products (TAP) investigation on Natural Gas-fueled Vehicle (NGV) catalysts provides information related to the nature of reaction steps involved over noble metals and at the metal-support interface. The determination of accurate kinetic parameters for methane adsorption from single pulse experiments and subsequent investigation of sequential surface reactions from alternative CH4/O2 pulse experiments is the first step toward the establishment of relevant structure/activity relationships which can highlight the importance of the metal/support interface on freshly-prepared and aged single palladium based catalysts.

摘要

天然气燃料汽车（NGV）催化剂的产物时间分析（TAP）研究提供了与贵金属上以及金属-载体界面处反应步骤性质相关的信息。通过单脉冲实验确定甲烷吸附的准确动力学参数，并随后通过交替的CH4/O2脉冲实验研究连续的表面反应，这是建立相关结构/活性关系的第一步，该关系可以突出金属/载体界面在新鲜制备和老化的单钯基催化剂上的重要性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b93/4754408/254807673f89/fchem-04-00007-g0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b93/4754408/1534569027f6/fchem-04-00007-g0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b93/4754408/60bcab1a8cf8/fchem-04-00007-g0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b93/4754408/d1e88e69e15e/fchem-04-00007-g0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b93/4754408/5228741adeab/fchem-04-00007-g0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b93/4754408/1e789d59abec/fchem-04-00007-g0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b93/4754408/254807673f89/fchem-04-00007-g0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b93/4754408/1534569027f6/fchem-04-00007-g0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b93/4754408/60bcab1a8cf8/fchem-04-00007-g0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b93/4754408/d1e88e69e15e/fchem-04-00007-g0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b93/4754408/5228741adeab/fchem-04-00007-g0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b93/4754408/1e789d59abec/fchem-04-00007-g0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b93/4754408/254807673f89/fchem-04-00007-g0007.jpg

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Mechanism and kinetics of direct N2O decomposition over Fe-MFI zeolites with different iron speciation from temporal analysis of products.通过产物的瞬态分析研究不同铁形态的Fe-MFI沸石上N2O直接分解的机理和动力学
J Phys Chem B. 2006 Nov 16;110(45):22586-95. doi: 10.1021/jp063492w.