Adsorption and Catalysis

We aim to precisely design the structure of adsorbents and heterogeneous catalysts with atomic precision. Particularly, we are interested in distinct surface properties observed from low-nuclearity atoms. 

Techniques

Liquid-phase atomic layer deposition (ALD), Ex-solution of perovskite 

Applications

• CO2 capture

• CO2 conversion (CO2 hydrogenation and Dry reforming of methane)

• Valorization of biomass-derived chemicals
  
  

A STEM image of Cu/ZrOx atomic clusters on MgO support.

The liquid-phase ALD technique allowed for the atomic design of heterogeneous catalysts with distinct surface properties, rarely observed in bulk catalysts. The bright dots correspond to atoms of either Cu or Zr 

We develop the process integrating adsorption and catalysis, aiming at increasing the productivity and efficiency of processes. 

To effectively utilize advanced materials in practical applications, additional factors that may not have been addressed in nano-scale studies must be considered. As part of our efforts to apply materials designed at the nano-scale, we develop advanced methods and processes to integrate them into real-world applications. 

Applications

• Sorption-enhanced catalytic reaction via Le Chatelier's principle.

• Direct air capture and its conversion. 

A SEM image of hierarchically structured CO2 adsorbent and WGS catalyst. 

The hierarchical structure of CO2 adsorbent and WGS catalysts was suitable to integrate the CO2 capture, WGS reaction, and H2-membrane, achieving simultaneous CO2 capture and enhanced H2 production via Le Chatelier's principle.