عنوان المقالة:Electrochemical synthesis of ammonia from N2 and H2O based on (Li,Na,K)2CO3–Ce0.8Gd0.18Ca0.02O2−δ composite electrolyte and CoFe2O4 cathode Electrochemical synthesis of ammonia from N2 and H2O based on (Li,Na,K)2CO3–Ce0.8Gd0.18Ca0.02O2−δ composite electrolyte and CoFe2O4 cathode
إبراهيم علي أحمد عمار | Ibrahim Ali Ahmed Amar | 15305
- نوع النشر
- مجلة علمية
- المؤلفون بالعربي
- Ibrahim A.Amar, Christophe T.G.Petit, Gregory Mann, Rong Lan, Peter J.Skabara, Shanwen Tao
- المؤلفون بالإنجليزي
- Ibrahim A.Amar, Christophe T.G.Petit, Gregory Mann, Rong Lan, Peter J.Skabara, Shanwen Tao
- الملخص الانجليزي
- Electrochemical synthesis of ammonia from water vapour and nitrogen was investigated using an electrolytic cell based on CoFe2O4–Ce0.8Gd0.18Ca0.02O2−δ (CFO-CGDC), CGDC-ternary carbonate composite and Sm0.5Sr0.5CoO3−δ–Ce0.8Gd0.18Ca0.02O2−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 O2 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.
- تاريخ النشر
- 18/03/2014
- الناشر
- International Journal of Hydrogen Energy
- رقم المجلد
- 39
- رقم العدد
- ISSN/ISBN
- 0360-3199
- رابط DOI
- doi.org/10.1016/j.ijhydene.2013.12.177
- الصفحات
- 4322-4330
- رابط خارجي
- https://www.sciencedirect.com/science/article/abs/pii/S0360319913031698
- الكلمات المفتاحية
- Electrochemical synthesis of ammonia, Water, Nitrogen, Spinels, Co-doped ceria-carbonate composite electrolyte