ACTIVITY ENHANCEMENT OF COPPER-CONTAINING OXIDE CATALYSTS BY ADDITION OF CESIUM IN THE REDUCTION OF NITRIC-OXIDE

被引：60

作者：

UKISU, Y ^{[1
]}

SATO, S ^{[1
]}

MURAMATSU, G ^{[1
]}

YOSHIDA, K ^{[1
]}

机构：

[1] RIKEN CORP,KUMAGAYA,SAITAMA 360,JAPAN

来源：

CATALYSIS LETTERS | 1992年 / 16卷 / 1-2期

关键词：

NITRIC OXIDE; CATALYTIC REDUCTION; PROPYLENE; COPPER; CESIUM; ALUMINA;

D O I：

10.1007/BF00764349

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：

Catalytic reduction of nitric oxide in the presence of propylene and oxygen over alumina and copper-containing oxide catalysts has been studied. The optimum temperature for this reaction is dependent upon the composition of the catalysts: almost-equal-to 640 K on Cu-Cs/Al2O3, almost-equal-to 680 K on Cu/Al2O3, and almost-equal-to 780 K on Al2O3. IR spectroscopic measurements show that an isocyanatc (-NCO) intermediatc formed on Cu-Cs/Al2O3 is more reactive with NO to give N2 than the intermediate produced on Al2O3 and Cu/Al2O3. Electron donation from Cs to Cu may activate the intermediate.

引用

页码：11 / 16

页数：6

共 15 条

[1] HIGHLY SELECTIVE REDUCTION OF NITROGEN-OXIDES WITH HYDROCARBONS OVER H-FORM ZEOLITE CATALYSTS IN OXYGEN-RICH ATMOSPHERES [J].

HAMADA, H ;

KINTAICHI, Y ;

SASAKI, M ;

ITO, T ;

TABATA, M .

APPLIED CATALYSIS, 1990, 64 (1-2) :L1-L4

[2]

HELD W, 1990, SAE900496 PAP

[3]

HELFERICH R, 1991, SAE910327 PAP

[4]

HERTZBERG G, 1950, DISCUSS FARADAY SOC, V9, P92

[5] INFLUENCE OF SULFUR-DIOXIDE ON CATALYTIC REMOVAL OF NITRIC-OXIDE OVER COPPER ION-EXCHANGED ZSM-5 ZEOLITE [J].

IWAMOTO, M ;

YAHIRO, H ;

SHUNDO, S ;

YOSHIHIRO, Y ;

MIZUNO, N .

APPLIED CATALYSIS, 1991, 69 (02) :L15-L19

[6] SELECTIVE REDUCTION OF NITROGEN-OXIDES WITH HYDROCARBONS OVER SOLID ACID CATALYSTS IN OXYGEN-RICH ATMOSPHERES [J].

KINTAICHI, Y ;

HAMADA, H ;

TABATA, M ;

SASAKI, M ;

ITO, T .

CATALYSIS LETTERS, 1990, 6 (02) :239-244

[7]

MAKI A, 1959, J CHEM PHYS, V31, P722

[8] INFRARED STUDIES OF REACTIONS ON OXIDE SURFACES .3. HCN AND C2N2 ON SILICA [J].

MORROW, BA ;

CODY, IA .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1975, 71 (05) :1021-1032

[9] CU-ZSM-5 ZEOLITE AS HIGHLY-ACTIVE CATALYST FOR REMOVAL OF NITROGEN MONOXIDE FROM EMISSION OF DIESEL-ENGINES [J].

SATO, S ;

YOSHIHIRO, Y ;

YAHIRO, H ;

MIZUNO, N ;

IWAMOTO, M .

APPLIED CATALYSIS, 1991, 70 (01) :L1-L5

[10]

SUMIYA S, 1992, SAE920853 PAP

← 1 2 →