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Iterative Approach of Experiment-Machine Learning for Efficient Optimization of Environmental Catalysts: An Example of NO x Selective Reduction Catalysts.
- Source :
-
Environmental science & technology [Environ Sci Technol] 2023 Nov 21; Vol. 57 (46), pp. 18080-18090. Date of Electronic Publication: 2023 Jul 02. - Publication Year :
- 2023
-
Abstract
- An iterative approach between machine learning (ML) and laboratory experiments was developed to accelerate the design and synthesis of environmental catalysts (ECs) using selective catalytic reduction (SCR) of nitrogen oxides (NO <subscript> x </subscript> ) as an example. The main steps in the approach include training a ML model using the relevant data collected from the literature, screening candidate catalysts from the trained model, experimentally synthesizing and characterizing the candidates, updating the ML model by incorporating the new experimental results, and screening promising catalysts again with the updated model. This process is iterated with a goal to obtain an optimized catalyst. Using the iterative approach in this study, a novel SCR NO <subscript> x </subscript> catalyst with low cost, high activity, and a wide range of application temperatures was found and successfully synthesized after four iterations. The approach is general enough that it can be readily extended for screening and optimizing the design of other environmental catalysts and has strong implications for the discovery of other environmental materials.
- Subjects :
- Nitrogen Oxides
Oxidation-Reduction
Temperature
Catalysis
Oxides
Ammonia
Subjects
Details
- Language :
- English
- ISSN :
- 1520-5851
- Volume :
- 57
- Issue :
- 46
- Database :
- MEDLINE
- Journal :
- Environmental science & technology
- Publication Type :
- Academic Journal
- Accession number :
- 37393584
- Full Text :
- https://doi.org/10.1021/acs.est.3c00293