Electrochemical synthesis of ammonia from N2 and H2O based on (Li,Na,K)2CO3-Ce0.8Gd 0.18Ca0.02O2-δ composite electrolyte and CoFe2O4 cathode
Amar, Ibrahim A. and Petit, Christophe T. G. and Mann, Gregory and Lan, Rong and Skabara, Peter J. and Tao, Shanwen (2014) Electrochemical synthesis of ammonia from N2 and H2O based on (Li,Na,K)2CO3-Ce0.8Gd 0.18Ca0.02O2-δ composite electrolyte and CoFe2O4 cathode. International Journal of Hydrogen Energy, 39 (9). pp. 4322-4330. ISSN 0360-3199 (https://doi.org/10.1016/j.ijhydene.2013.12.177)
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Abstract
Electrochemical synthesis of ammonia from water vapour and nitrogen was investigated using an electrolytic cell based on CoFe2O 4-Ce0.8Gd0.18Ca0.02O 2-δ (CFO-CGDC), CGDC-ternary carbonate composite and Sm 0.5Sr0.5CoO3-δ-Ce0.8Gd 0.18Ca0.02O2-δ (SSCo-CGDC) as cathode, electrolyte and anode respectively. CoFe2O4, CGDC and SCCo were prepared via a combined EDTA-citrate complexing sol-gel and characterised by X-ray diffraction (XRD). The AC ionic conductivities of the CGDC-carbonate composite were investigated under three different atmospheres (air, dry O 2 and wet 5% H2-Ar). A tri-layer electrolytic cell was fabricated by a cost-effective one-step dry-pressing and co-firing process. Ammonia was successfully synthesised from water vapour and nitrogen under atmospheric pressure and the maximum rate of ammonia production was found to be 6.5 × 10-11 mol s-1 cm-2 at 400 C and 1.6 V which is two orders of magnitude higher than that of previous report when ammonia was synthesised from N2 and H2O at 650 C.
ORCID iDs
Amar, Ibrahim A., Petit, Christophe T. G., Mann, Gregory ORCID: https://orcid.org/0000-0002-1932-8634, Lan, Rong, Skabara, Peter J. and Tao, Shanwen;-
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Item type: Article ID code: 48930 Dates: DateEvent18 March 2014PublishedSubjects: Science > Chemistry Department: University of Strathclyde > University of Strathclyde
Faculty of Science > Pure and Applied Chemistry
Faculty of Engineering > Chemical and Process Engineering
Technology and Innovation Centre > PhotonicsDepositing user: Pure Administrator Date deposited: 11 Jul 2014 11:05 Last modified: 01 Dec 2024 23:54 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/48930