Catalytic and electrocatalytic synthesis of NH3 in a H+ conducting cell by using an industrial Fe catalyst

被引：72
|
作者：
Ouzounidou, Martha
Skodra, Aglaia
Kokkofitis, Christos
Stoukides, Michael [1 ]
机构：
[1] Dept Chem Engn, Thessaloniki 54124, Greece
[2] Univ Thessaloniki, Chem Proc Engn Res Inst, Thessaloniki 54124, Greece
来源：
SOLID STATE IONICS | 2007年 / 178卷 / 1-2期
关键词：
ammonia synthesis; solid state proton conductor; Fe catalyst-electrode; NEMCA;
D O I：
10.1016/j.ssi.2006.11.019
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 catalytic and electrocatalytic synthesis of ammonia was studied in double-chamber and single-chamber proton conducting cells at 450700 degrees C and at atmospheric total pressure. A Fe-based industrial catalyst was used as the working electrode. The kinetics of the catalytic reaction of ammonia synthesis were evaluated under open-circuit. An up to 80% increase in the reaction rate was observed when protons were electrochemically "pumped" to the Fe electrode. A weak NEMCA effect was observed with the Faradaic efficiency (Lambda) and the reaction rate enhancement (rho) remaining below 3.0 and 2.0, respectively. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：153 / 159
页数：7
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