Extended Data Fig. 1: Schematics of reaction mechanisms.
From: Vacancy-enabled N2 activation for ammonia synthesis on an Ni-loaded catalyst
a–d, Comparison of the structural and reaction mechanism for ammonia synthesis over transition metal (TM)-loaded catalysts: a, TM/MgO; b, TM/C12A7:e−; c, TM/LiH; d, TM/LaN.
