A novel method for preparation of doped Ba3(Ca1.18Nb1.82)O9-δ:: Application to ammonia synthesis at atmospheric pressure

被引：71
|
作者：
Li, ZJ [1 ]
Liu, RQ [1 ]
Xie, YH [1 ]
Feng, S [1 ]
Wang, JD [1 ]
机构：
[1] Xinjiang Univ, Coll Chem & Chem Engn, Urumqi 830046, Peoples R China
来源：
SOLID STATE IONICS | 2005年 / 176卷 / 11-12期
关键词：
high-temperature proton conductor (HTPC); ammonia synthesis; complex perovskite-type oxides;
D O I：
10.1016/j.ssi.2005.01.009
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：
Complex perovskite-type oxides Ba-3(Ca1.18Nb1.82)O-9 (BCN18), Ba3CaZr0.5Nb1.5O9 (BCZN), and Ba3Ca0.9Nd0.28Nb1.82O9 (BCNN) were synthesized by a new wet chemical method and characterized by thermal analysis (TG-DTA), X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Using the sintered samples as solid electrolyte and silver-palladium alloy as electrodes, ammonia was synthesized from nitrogen and hydrogen at atmospheric pressure in the solid-state proton-conducting cell reactor. The rate of evolution of ammonia was up to 2.16x10(-9) mol s(-1) cm(-2). (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：1063 / 1066
页数：4
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