Saudi-Aramco-KAIST CO2 Management Center | KAIST MatriX

Tag: Saudi-Aramco-KAIST CO2 Management Center

Research Highlight

Efficient Exploration of Multimetallic Alloys for Optimal Bifunctional Catalysts in Water Splitting through Pareto Active Learning and Experiments

A study published by Prof. Hee-Tae Jung’s group on the efficient production of renewable energy through the search for optimal bifunctional multimetallic alloy catalysts has shown promising results. The study used a Pareto active learning framework and carbothermal shock method for nanoparticle synthesis to efficiently determine optimal metallic compositions for bifunctional catalysts of up to four component elements for electrocatalytic reactions. The approach can be extended to different catalytic reaction fields and other multifunctional applications....read more

Bifunctional catalysts Green Hydrogen Multimetallic alloys Pareto active learning Renewable energy Saudi-Aramco-KAIST CO₂ Management Center Water Splitting

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Selective and Efficient Photocatalytic Conversion of CO₂ with Ultrathin Nanosheets

Prof. Doh Chang Lee’s group has developed a novel photocatalyst based on ultrathin CdS nanosheets for selective and efficient light-driven conversion of CO₂ into CO. Surface engineering at atomic precision on CdS nanosheets enabled spatial separation of the reductive active sites and the oxidative active sites to designated facets. The facet-resolved redox-active sites favored efficient charge separation in the CdS nanosheets under light, leading to two-orders-of-magnitude increase in conversion rate of CO₂-to-CO. ...read more

CO₂ Conversion Energy shortage Global warming Photocatalysis Saudi-Aramco-KAIST CO₂ Management Center Solar fuels

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Nanowrinkled Copper Catalyst via Graphene Growth for Carbon Dioxide Conversion into Ethanol

Prof. Hee-Tae Jung’s group has reported high conversion of CO₂ into ethanol by synthesizing a wrinkled Cu catalyst with high facets via a graphene growth process....read more

C-C coupling carbon dioxide electroreduction CO₂ Conversion CVD graphene growth high facet nanowrinkle Saudi-Aramco-KAIST CO₂ Management Center step site

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Fiber Sorbents for Energy-Efficient CO₂ Capture

Prof. Koh’s group conceived a feasible route for developing a scalable platform for CO₂ capture (including direct air capture) using metal-organic frameworks. MOF-based fiber sorbents show high CO₂ uptake and low pressure drop for long-term cyclic operation in direct air capture mode....read more

Adsorption CO₂ capture Direct Air Capture metal-organic frameworks Saudi-Aramco-KAIST CO₂ Management Center

Research Highlight

Accelerated Material Design Framework using Uncertainty-Quantified Hybrid Machine Learning/Density Functional Theory Approach

Prof. Yousung Jung’s group has developed a new accelerated high throughput screening (HTS) method using uncertainty-quantified machine learning (ML) and density functional theory (DFT) that was applied to explore the Mg-Mn-O chemical space for photoanode application. Notably, the proposed HTS scheme required only 1.5% of the target chemical space for further DFT calculations, accelerating the entire process by > 50 times for the same discovery compared to the brute-force DFT-HTS done previously. This means an improvement of the screening performance (discoverability) by more than a factor of 2 compared to the conventional ML-based HTS approach....read more

CO₂ Conversion Density functional theory High throughput Screening Machine Learning Saudi-Aramco-KAIST CO₂ Management Center Uncertainty quantification

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New Catalyst Recycles Greenhouse Gases into Fuel and Hydrogen Gas

Prof. Yavuz’s group has developed a new catalyst for dry reforming of methane. The catalyst exhibits outstanding stability and activity without deactivation, attributed to the migration of Ni-Mo nanocrystals to the edge of single crystal MgO....read more

Catalysis CO₂ Conversion Dry Reforming of Methane Saudi-Aramco-KAIST CO₂ Management Center

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3-Dimensional Catalysts Facilitate Conversion of CO₂ into Useful Fuels

KAIST team developed multi-stacked 3-dimensional Au catalyst architecture to enhance the electrochemical CO₂ reduction reaction....read more

CO₂ Conversion Saudi-Aramco-KAIST CO₂ Management Center

Research Highlight

Morphology Analysis of Solution-Sheared Halide Perovskite Film

A technique known as solution-shearing has been utilized to generate a thin film of perovskite CH₃NH₃PbI₃ over a large area in a facile and cost-effective manner...read more

CO₂ Reduction by Enhancing Energy Efficiency Perovskite Saudi-Aramco-KAIST CO₂ Management Center Solar Cells Solution Process Solution-Shearing

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Three-Dimensional Nanostructured Z-scheme Photocatalyst for Carbon Dioxide Conversion

Efficient and stable CO₂ conversion under visible light by using a novel photocatalyst with Z-scheme charge flow on 3-dimensional nanowire arrays....read more

Carbon Dioxide Reduction KINC Photocatalyst Saudi-Aramco-KAIST CO₂ Management Center Z-scheme

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Energy-Saving CO₂ Hydrogenation Using Light

Light-assisted CO₂ hydrogenation produced methane on a Ru/SiO₂ catalyst. By using both light and heat as an energy source, the total energy required for CO₂ conversion could be reduced to 37%. The chemical reaction can be easily initiated or terminated by simply turning on or off the light....read more

CO₂ hydrogenation Light-assisted Photocatalysis Ruthenium Saudi-Aramco-KAIST CO₂ Management Center

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