Electrocatalysts ammonia synthesis

Catalysts play an important role in overcoming the activation barrier in ammonia synthesis. It is weU known that strong N=N triple bond and the low sticking coefficient of the molecule nitrogen limit the choice of catalyst. However, the mechanism of ammonia formation on an electrocatalyst seems to be different from that of the conventional catalyst. The information about the conventional catalyst in the Haber-Bosch process and the electrocatalyst in the electrocatalytic membrane reactor are described in this section. 

To avoid decomposition of ammonia, the ideal ammonia synthesis temperature is suggested to be below 175 °C (Lan et al., 2013), but the requirements on electrocatalysts are also higher as due to the low kinetic process. 

Electrocatalytic ammonia synthesis at normal pressure 10.2.3.1 Electrocatalytic reaction and electrocatalyst... 

Liu J, Hu WB, Zhong C, Cheng Y (2013) Surfactant-free electrochemical synthesis of hierarchical platinum particle electrocatalysts for oxidation of ammonia. J Power Sources 223 165-174... 

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