Heterogeneous catalyst design by generative adversarial network and first-principles based microkinetics
Abstract Microkinetic analysis based on density functional theory (DFT) was combined with a generative adversarial network (GAN) to enable the artificial proposal of heterogeneous catalysts based on the DFT-calculated dataset. The approach was applied to the NH3 formation reaction on Rh−Ru alloy sur...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2022-07-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-15586-9 |
| _version_ | 1811323596113444864 |
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| author | Atsushi Ishikawa |
| author_facet | Atsushi Ishikawa |
| author_sort | Atsushi Ishikawa |
| collection | DOAJ |
| description | Abstract Microkinetic analysis based on density functional theory (DFT) was combined with a generative adversarial network (GAN) to enable the artificial proposal of heterogeneous catalysts based on the DFT-calculated dataset. The approach was applied to the NH3 formation reaction on Rh−Ru alloy surfaces as an example. The NH3 formation turnover frequency (TOF) was calculated by DFT-based microkinetics. Six elementary reactions, namely, N2 dissociation, H2 dissociation, NH x (x = 1–3) formation, and NH3 desorption, were explicitly considered, and their reaction energies were evaluated by DFT calculations. Based on the TOF values and atomic compositions, new alloy surfaces were generated using the GAN. This approach successfully generated the surfaces that were not included in the initial dataset but exhibited higher TOF values. The N2 dissociation reaction was more exothermic for the generated surfaces, leading to higher TOF. The present study demonstrates that the automatic improvement of catalyst materials is possible using DFT calculations and GAN sample generation. |
| first_indexed | 2024-04-13T13:57:59Z |
| format | Article |
| id | doaj.art-b3ba56984c7d46118fe4f7427ec04d21 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-13T13:57:59Z |
| publishDate | 2022-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-b3ba56984c7d46118fe4f7427ec04d212022-12-22T02:44:08ZengNature PortfolioScientific Reports2045-23222022-07-011211910.1038/s41598-022-15586-9Heterogeneous catalyst design by generative adversarial network and first-principles based microkineticsAtsushi Ishikawa0Center for Green Research on Energy and Environmental Materials (GREEN), National Institute for Materials Science (NIMS)Abstract Microkinetic analysis based on density functional theory (DFT) was combined with a generative adversarial network (GAN) to enable the artificial proposal of heterogeneous catalysts based on the DFT-calculated dataset. The approach was applied to the NH3 formation reaction on Rh−Ru alloy surfaces as an example. The NH3 formation turnover frequency (TOF) was calculated by DFT-based microkinetics. Six elementary reactions, namely, N2 dissociation, H2 dissociation, NH x (x = 1–3) formation, and NH3 desorption, were explicitly considered, and their reaction energies were evaluated by DFT calculations. Based on the TOF values and atomic compositions, new alloy surfaces were generated using the GAN. This approach successfully generated the surfaces that were not included in the initial dataset but exhibited higher TOF values. The N2 dissociation reaction was more exothermic for the generated surfaces, leading to higher TOF. The present study demonstrates that the automatic improvement of catalyst materials is possible using DFT calculations and GAN sample generation.https://doi.org/10.1038/s41598-022-15586-9 |
| spellingShingle | Atsushi Ishikawa Heterogeneous catalyst design by generative adversarial network and first-principles based microkinetics Scientific Reports |
| title | Heterogeneous catalyst design by generative adversarial network and first-principles based microkinetics |
| title_full | Heterogeneous catalyst design by generative adversarial network and first-principles based microkinetics |
| title_fullStr | Heterogeneous catalyst design by generative adversarial network and first-principles based microkinetics |
| title_full_unstemmed | Heterogeneous catalyst design by generative adversarial network and first-principles based microkinetics |
| title_short | Heterogeneous catalyst design by generative adversarial network and first-principles based microkinetics |
| title_sort | heterogeneous catalyst design by generative adversarial network and first principles based microkinetics |
| url | https://doi.org/10.1038/s41598-022-15586-9 |
| work_keys_str_mv | AT atsushiishikawa heterogeneouscatalystdesignbygenerativeadversarialnetworkandfirstprinciplesbasedmicrokinetics |