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The aim is to develop a Ni nanocatalyst that achieves both high activity and stability in CO2 methanation.

A Surface Defect-Promoted Ni Nanocatalyst with Simultaneously Enhanced Activity and Stability

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The aim is to develop a Ni nanocatalyst that achieves both high activity and stability in CO2 methanation.
A surface defect-promoted Ni nanocatalyst was fabricated on a hierarchical Al2O3 matrix.
The catalyst was produced using an in situ reduction process.
Characterization techniques included HRTEM, HAADF-STEM, EXAFS, and positron annihilation spectroscopy.
The Ni nanocatalyst showed significantly enhanced low-temperature activity due to abundant surface vacancy clusters.
The catalyst maintained high reaction stability without sintering or aggregation of active species during long-term use.

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Randomized trial demonstrates effective Ni nanocatalyst for CO2 methanation, suggesting improvement for catalytic processes.

He et al. (2013) studied this question.

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