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Atomistic Insight into the Electrode Reaction Mechanism of Cathode in Molten Carbonate Fuel Cell 

2017-06-12

Abstract

In an era of increasing energy demand challenges combined with simultaneous environmental protection, molten carbonate fuel cells (MCFCs) have emerged as an interesting candidate to overcome both of these issues. Although the macroscopic parameters of MCFC have been successfully optimized, the microscopic understanding of the electrochemical catalytic reactions, which determine their performance, remains challenging due to their chemical complexity and high operation temperatures. In this paper, we propose a top-down approach to unravel hitherto unreported electrode reaction mechanism of cathode in the MCFC using density functional theory (DFT). The oxygen-terminated octopolar NiO(111) is predicted to facilitate cathodic transformation of carbon dioxide to carbonate anion through sequential Mars-van Krevelen (MvK) and Eley-Rideal (ER) mechanisms. This theoretical work opens up new perspectives in the atomic scale computational design of cathode material for the MCFC.

Atomistic Insight into the Electrode Reaction Mechanism of Cathode in Molten Carbonate Fuel Cell

Kamil Czelej, Karol Cwieka, Juan Carlos Colmenares and Krzysztof Kurzydłowski. J. Mater. Chem. A, 5 (201713763 – 13768

http://​pubs​.rsc​.org/​e​n​/​c​o​n​t​e​n​t​/​a​r​t​i​c​l​e​h​t​m​l​/​2017​/​t​a​/​c​7​t​a​02011b

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