Balancing Density Control and CO₂ Adsorption Capacity in MOF Synthesis using Multi-Sigma®

This case study showcases how AIZOTH’s AI analytics platform, Multi-Sigma®, is utilized to optimize the synthesis of Metal-Organic Frameworks (MOFs), achieving both optimal density and high CO₂ adsorption capacity

1. AI Chain Analysis

The first-stage AI model predicts structural characteristics based on experimental conditions, while the second-stage AI model takes the structural characteristics, which is the output from the first stage, as input to predict functional characteristics.

1. AI Chain Analysis

2. Contribution Analysis

2. Contribution Analysis

3. Multi-Objective Optimization for CO₂ Adsorption and Density Control

Using Multi-Sigma®‘s optimization functionality, a multi-objective approach was employed to maximize CO₂ adsorption while maintaining a target density of approximately 0.25 g/cm³. As a result, the following synthesis conditions were identified, achieving a density of 0.25 ± 0.005 g/cm³ and a high CO₂ adsorption capacity of 32.2:
•Synthesis temperature: 174°C
•Synthesis time: 408 hours
•Metal type: Indium
•Oxidation state: +2

3. Multi-Objective Optimization for CO₂ Adsorption and Density Control

(Note 1) The data used in this analysis is processed and edited based on the data published in the article below, under MIT license.
Data Source: GitHub (https://github.com/aimat-lab/MOF_Synthesis_Prediction)
(Note 2) The unit of density is (g/cm³) and accessible pore volume is (cm³/g)., and the CO₂ adsorption capacity is measured at a temperature of 298 K and a pressure of 16 bar.