Abstract
The global focus on new energy sources and energy storage methods has prompted significant research interest. Ni-based catalysts for CO2 methanation have the potential for industrialization, but face challenges such as high-temperature sintering, carbon deposition, and unstable catalytic activity; of which similar problems exist in NH3 decomposition reactions. A 10%Ni/3DOM-La2O2CO3 catalyst, featuring a three-dimensional ordered macroporous (3DOM) structure, demonstrated competitive low-temperature catalytic performance in CO2 methanation through formate intermediates. Comprehensive characterizations revealed improved Ni dispersion and carbon deposition prevention due to the 3DOM structure, enhancing catalytic activity. This structural advantage also translated to improved performance in ammonia decomposition.
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