Reduction of nitrogen oxide by a steam electrolysis cell using a proton conducting electrolyte

被引：24

作者：

Kobayashi, T ^{[1
]}

Morishita, S ^{[1
]}

Abe, K ^{[1
]}

Iwahara, H ^{[1
]}

机构：

[1] NAGOYA UNIV,CTR INTEGRATED RES SCI & ENGN,CHIKUSA KU,NAGOYA,AICHI 464,JAPAN

来源：

SOLID STATE IONICS | 1996年 / 86-8卷

关键词：

proton; tonic conductivity; nitrogen oxide; reduction; zirconium compound; strontium compound;

D O I：

10.1016/0167-2738(96)00216-0

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：

Removal of nitrogen oxide (NO) by electrochemical reduction was studied using a steam electrolysis cell with platinum electrodes and a proton conductor SrZr0.9Yb0.1O3-alpha as the electrolyte. Without NO, the cell produced H-2 with nearly 100% current efficiency in the temperature range 380-590 degrees C. With NO fed to the cathode, NO was effectively reduced. The main products were N2O and N-2 at low current densities, and N-2 and NH3 at higher current densities. When O-2 was mixed into the cathode gas, NO was not reduced on the pure Pt cathode. However, 'Pt sponge + Sr/Al2O3' catalyst on the Pt cathode showed a good catalytic ability for the reduction of NO supplied with O-2.

引用

页码：603 / 607

页数：5

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