Roles of palladium and platinum in the selective catalytic reduction of nitrogen oxides by methane on palladium-platinum-loaded sulfated zirconia

被引：36

作者：

Ohtsuka, H ^{[1
]}

Tabata, T ^{[1
]}

机构：

[1] Osaka Gas Co Ltd, Dept Res & Dev, Konohana Ku, Osaka 5540051, Japan

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2001年 / 29卷 / 03期

关键词：

NOx reduction; palladium; platinum; sulfated zirconia; methane;

D O I：

10.1016/S0926-3373(00)00201-0

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 selective reduction of nitrogen oxides by methane on Pd-Pt/sulfated zirconia (SZ) was investigated. The activity of Pd-Pt/SZ was noticeably higher than that of either Pd/SZ or Pt/SZ. The cooperative effect of Pd and Pt, Pd acting as sites for the reaction of NO2 with methane and Pt catalyzing NO oxidation to NO2, was suggested. The addition of Pt to Pd/MOR showed a similar improvement, but the effect was much more prominent for Pd/SZ. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：177 / 183

页数：7

共 12 条

[1] THE ROLE OF NO2 IN THE REDUCTION OF NO BY HYDROCARBON OVER CU-ZRO2 AND CU-ZSM-5 CATALYSTS [J].

BETHKE, KA ;

LI, C ;

KUNG, MC ;

YANG, B ;

KUNG, HH .

CATALYSIS LETTERS, 1995, 31 (2-3) :287-299

[2]

HOSHI F, 1997, 80 CATSJ M ABSTR, pA310

[3] Oxidation of NO to NO2 on a Pt-MFI zeolite and subsequent reduction of NOx by C2H4 on an In-MFI zeolite: A novel de-NOx strategy in excess oxygen [J].

Iwamoto, M ;

Hernandez, AM ;

Zengyo, T .

CHEMICAL COMMUNICATIONS, 1997, (01) :37-38

[4] Promotive effect of additives to In/H-ZSM-5 catalyst for selective reduction of nitric oxide with methane in the presence of water vapor [J].

Kikuchi, E ;

Ogura, M ;

Aratani, N ;

Sugiura, Y ;

Hiromoto, S ;

Yogo, K .

CATALYSIS TODAY, 1996, 27 (1-2) :35-40

[5] ESSENTIAL ROLE OF ACIDITY IN THE CATALYTIC REDUCTION OF NITROGEN MONOXIDE BY METHANE IN THE PRESENCE OF OXYGEN OVER PALLADIUM-LOADED ZEOLITES [J].

NISHIZAKA, Y ;

MISONO, M .

CHEMISTRY LETTERS, 1994, (12) :2237-2240

[6] CATALYTIC REDUCTION OF NITROGEN MONOXIDE BY METHANE OVER PALLADIUM-LOADED ZEOLITES IN THE PRESENCE OF OXYGEN [J].

NISHIZAKA, Y ;

MISONO, M .

CHEMISTRY LETTERS, 1993, (08) :1295-1298

[7] Intrapore catalysis in NO reduction with methane on Ir/In/H-ZSM-5 catalyst [J].

Ogura, M ;

Kikuchi, E .

CHEMISTRY LETTERS, 1996, (12) :1017-1018

[8] A study on selective reduction of NOx by propane on Co-beta [J].

Ohtsuka, H ;

Tabata, T ;

Okada, O ;

Sabatino, LMF ;

Bellussi, G .

CATALYSIS LETTERS, 1997, 44 (3-4) :265-270

[9]

OHTSUKA H, IN PRESS APPL CATAL

[10] NOx reduction with methane over mordenite supported palladium catalyst [J].

Uchida, H ;

Yamaseki, K ;

Takahashi, I .

CATALYSIS TODAY, 1996, 29 (1-4) :99-102

← 1 2 →