عنوان المقالة:Solid-state electrochemical synthesis of ammonia: a review Solid-state electrochemical synthesis of ammonia: a review
إبراهيم علي أحمد عمار | Ibrahim Ali Ahmed Amar | 12538
نوع النشر
مجلة علمية
المؤلفون بالعربي
Ibrahim A Amar, Rong Lan, Christophe TG Petit, Shanwen Tao
المؤلفون بالإنجليزي
Ibrahim A Amar, Rong Lan, Christophe TG Petit, Shanwen Tao
الملخص الانجليزي
Ammonia is one of the most produced chemicals worldwide, and it is not only a major end product but also an important energy storage intermediate. The solid-state electrochemical synthesis of ammonia has the promise to overcome the limitations of the conventional catalytic reactors such as the limited conversion, severe environmental pollution and high energy consumption. Solid-state electrolytes either protonic or oxide ion conductors have been reviewed and particular emphasis is placed on their application to synthesise ammonia. The highest rate of ammonia formation according to the type of electrolyte utilised were in the following order; solid polymers > Ce0.8Gd0.2O2−δ-(Ca3(PO4)2-K3PO4) composites > fluorites > perovskites > pyrochlores although the catalysts in electrodes also play an important role. The highest rate reported so far is found to be 1.13 × 10−8 mol s−1 cm−2 at 80 °C with a potential of 2 V using Nafion membrane, SmFe0.7Cu0.1Ni0.2O3 (SFCN), and Ni-Ce0.8Sm0.2O2−δ as solid electrolyte, cathode and anode, respectively. Synthesising ammonia from steam and N2, by-passing H2 stage offers many advantages such as reduction of device numbers and then the overall costs. The factors affecting the rate of ammonia formation have been discussed as well.
تاريخ النشر
06/04/2011
الناشر
Journal of solid state electrochemistry
رقم المجلد
15
رقم العدد
9
ISSN/ISBN
1433-0768
رابط DOI
https://doi.org/10.1007/s10008-011-1376-x
الصفحات
1845
رابط خارجي
https://link.springer.com/article/10.1007/s10008-011-1376-x
الكلمات المفتاحية
Electrochemical synthesis of ammonia, Solid-state electrolyte, Proton conductor, Oxide-ion conductor
رجوع