Picture of wind turbine against blue sky

Open Access research with a real impact...

The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs.

The Energy Systems Research Unit (ESRU) within Strathclyde's Department of Mechanical and Aerospace Engineering is producing Open Access research that can help society deploy and optimise renewable energy systems, such as wind turbine technology.

Explore wind turbine research in Strathprints

Explore all of Strathclyde's Open Access research content

Electrochemical synthesis of ammonia based on a carbonate-oxide composite electrolyte

Amar, Ibrahim A. and Lan, Rong and Petit, Christophe T. G. and Arrighi, Valeria and Tao, Shanwen (2011) Electrochemical synthesis of ammonia based on a carbonate-oxide composite electrolyte. Solid State Ionics, 182 (1). pp. 133-138. ISSN 0167-2738

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

Electrochemical synthesis of ammonia based on carbonate electrolyte is presented in this paper. Spinel oxide CoFe2O4 was synthesised via a co-precipitation method and characterised by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Ammonia was successfully synthesised from hydrogen and nitrogen under atmospheric pressure using CoFe2O4 as catalyst (primary particle size 10-20 nm) together with silver at the cathode, Ag-Pd at the anode and carbonate-LiAlO2 composite as electrolyte respectively. Ammonia formation was observed at 400,425 and 450 degrees C and the maximum rate of ammonia production was found to be 2.32 x 10(-10) mol s(-1) cm(-2) at 400 degrees C and 0.8 V. The AC impedance measurements were recorded before and after the ammonia synthesis at 400, 425 and 450 degrees C. The electrolytic cell during the ammonia synthesis process was more stable at 450 degrees C and 0.8 V over a period of 2 h. This experiment also indicates that the carbonate-LiAlO2 composite electrolyte exhibits proton conduction.