Synthesis of Ga2O3-Al2O3 Catalysts by a Coprecipitation Method for CH4-SCR of NO

被引：16

作者：

Masuda, Takeo ^{[1
]}

Watanabe, Tsunenori ^{[1
,2
]}

Miyahara, Yuya ^{[1
]}

Kanai, Hiroyoshi ^{[1
]}

Inoue, Masashi ^{[1
]}

机构：

[1] Kyoto Univ, Dept Energy & Hydrocarbon Chem, Grad Sch Engn, Kyoto 6158510, Japan

[2] Kansai Elect Power Co Inc, Amagasaki, Hyogo 6610974, Japan

来源：

TOPICS IN CATALYSIS | 2009年 / 52卷 / 6-7期

关键词：

DeNOx; Selective catalytic reduction; Nitrogen oxides; Methane; Spinel; Ga2O3-Al2O3 solid solution; Dawsonite; ALUMINUM CARBONATE HYDROXIDE; REDUCTION; POWDERS; PERFORMANCE;

D O I：

10.1007/s11244-009-9211-7

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Synthesis of the gamma-Ga2O3-Al2O3 solid solutions by the coprecipitation method was examined. Precipitates were obtained by adding at once an aqueous solution of aluminum and gallium nitrates to an excess base solution (reverse strike precipitation). The precipitates were calcined at 700 A degrees C to give gamma-Ga2O3-Al2O3 solid solutions. When an ammonium carbonate solution was used as the precipitant, ammonium aluminum carbonate hydroxide (ammonium dawsonite, AACH)-ammonium gallium carbonate hydroxide (AGCH) solid solutions were obtained. Calcination of the AACH-AGCH solid solutions at 700 A degrees C gave the gamma-Ga2O3-Al2O3 solid solutions which exhibited high activity for selective catalytic reduction of NO with methane.

引用

页码：699 / 706

页数：8

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