Preparation of BaCe0.8Gd0.2O3-δ by the citrate method and its application in the synthesis of ammonia at atmospheric pressure

被引：42

作者：

Li, ZJ ^{[1
]}

Liu, RQ ^{[1
]}

Wang, JD ^{[1
]}

Xie, YH ^{[1
]}

Yue, F ^{[1
]}

机构：

[1] Xinjiang Univ, Coll Chem & Chem Engn, Urumqi 830046, Peoples R China

来源：

JOURNAL OF SOLID STATE ELECTROCHEMISTRY | 2005年 / 9卷 / 04期

关键词：

high-temperature proton conductor; BaCe0.8Gd0.2O3-delta; ammonia synthesis; citrate method; perovskite type;

D O I：

10.1007/s10008-004-0582-1

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

BaCe0.8Gd0.2O3-delta is a kind of high-temperature proton conductor. A precursor of BaCe0.8Gd0.2O3-delta solid electrolyte was synthesized by the citrate method and characterized by thermal analysis (thermogravimetric analysis-differential thermal analysis), X-ray diffraction and scanning electron microscopy. Using the sintered samples as a solid electrolyte and silver-palladium alloy as electrodes, we synthesized ammonia from nitrogen and hydrogen at atmospheric pressure in the solid-state proton-conducting-cell reactor. The rate of evolution of ammonia was up to 3.09x10(-9) mol s(-1) cm(-2).

引用

页码：201 / 204

页数：4

共 14 条

[1] ELECTROCATALYTIC NONOXIDATIVE DIMERIZATION OF METHANE OVER AG ELECTRODES [J].

CHIANG, PH ;

ENG, D ;

STOUKIDES, M .

SOLID STATE IONICS, 1993, 61 (1-3) :99-103

[2] ELECTROCHEMICAL METHANE COUPLING USING PROTONIC CONDUCTORS [J].

HAMAKAWA, S ;

HIBINO, T ;

IWAHARA, H .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1993, 140 (02) :459-462

[3]

HE ZQ, 1998, CHIN J APPL CHEM, V6, P22

[4] PROTON CONDUCTION IN SINTERED OXIDES BASED ON BACEO3 [J].

IWAHARA, H ;

UCHIDA, H ;

ONO, K ;

OGAKI, K .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1988, 135 (02) :529-533

[5] PROTON CONDUCTION IN SINTERED OXIDES AND ITS APPLICATION TO STEAM ELECTROLYSIS FOR HYDROGEN-PRODUCTION [J].

IWAHARA, H ;

ESAKA, T ;

UCHIDA, H ;

MAEDA, N .

SOLID STATE IONICS, 1981, 3-4 (AUG) :359-363

[6]

JIANG K, 1999, SCI CHINA B, V4, P255

[7] Ammonia synthesis at atmospheric pressure [J].

Marnellos, G ;

Stoukides, M .

SCIENCE, 1998, 282 (5386) :98-100

[8] Current efficiency of electrochemical hydrogen pumping using a high-temperature proton conductor SrCe0.95Yb0.05O3-α [J].

Matsumoto, H ;

Iida, Y ;

Iwahara, H .

SOLID STATE IONICS, 2000, 127 (3-4) :345-349

[9] Modelling of equilibrium limited hydrogenation reactions carried out in H+ conducting solid oxide membrane reactors [J].

Panagos, E ;

Voudouris, I ;

Stoukides, M .

CHEMICAL ENGINEERING SCIENCE, 1996, 51 (11) :3175-3180

[10]

SHI YZ, 1998, J WUHAN METALLURGY U, V1, P40

← 1 2 →