Probing a Non-Thermal Plasma Activated Heterogeneously Catalyzed Reaction Using in Situ DRIFTS-MS

被引：81

作者：

Stere, C. E. ^{[1
]}

Adress, W. ^{[2
]}

Burch, R. ^{[1
]}

Chansai, S. ^{[1
]}

Goguet, A. ^{[1
]}

Graham, W. G. ^{[2
]}

Hardacre, C. ^{[1
]}

机构：

[1] Queens Univ Belfast, Ctr Theory & Applicat Catalysis, CenTACat, Sch Chem & Chem Engn, Belfast BT9 5AG, Antrim, North Ireland

[2] Queens Univ Belfast, Sch Math & Phys, Ctr Plasma Phys, Belfast BT9 5AG, Antrim, North Ireland

来源：

ACS CATALYSIS | 2015年 / 5卷 / 02期

基金：

英国工程与自然科学研究理事会;

关键词：

low-temperature hydrocarbon-selective catalytic reduction; Ag/Al2O3; non-thermal plasma; DRIFTS-MS; NOx reduction; toluene; octane; SELECTIVE REDUCTION; FTIR SPECTROSCOPY; NOX; SCR; TEMPERATURE; ISOCYANATE; MECHANISM; HYDROGEN; AG/AL2O3; ALUMINA;

D O I：

10.1021/cs5019265

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The current paper reports on a newly developed DRIFTS-MS system for the investigation of non-thermal plasma (NTP) assisted heterogeneously catalyzed reactions. Specifically, this methodology has been utilized to investigate the surface changes during the NTP-activated hydrocarbon selective catalytic reduction (HC-SCR) deNO(x) reaction over a silver-based catalyst at ambient temperature using simulated diesel fuels (toluene and n-octane). The experimental setup and the methods used to investigate the plasma activation operating with helium as the carrier gas in order to examine low-temperature reactions are described. The technique has identified the importance, even at low temperatures, of isocyanate species in the HC-SCR deNO(x) reaction as well as the critical role of water in the formation of N-2.

引用

页码：956 / 964

页数：9

共 44 条

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