{"title":"机器学习辅助发现从 C2H2/C2H4/C2H6 三元混合物中一步提纯 C2H4 的高效 MOFs","authors":"Tongan Yan, Zhengqing Zhang, Chongli Zhong","doi":"10.1021/acs.jced.4c00244","DOIUrl":null,"url":null,"abstract":"Purifying C<sub>2</sub>H<sub>4</sub> from a mixture of C<sub>2</sub>H<sub>2</sub>/C<sub>2</sub>H<sub>4</sub>/C<sub>2</sub>H<sub>6</sub> using a single adsorbent is crucial industrially. Yet, the challenge lies in their similar physicochemical properties, leading to low separation efficiency. Additionally, the lack of understanding regarding the structure–performance relationships hinders the development of high-performance metal–organic frameworks (MOFs). In this study, machine learning assisted high-throughput molecular simulation methods are employed to discover efficient MOFs for one-step C<sub>2</sub>H<sub>4</sub> purification. The general material design strategies were proposed based on the analysis of 14,142 CoRE MOF simulation data. These include locking open metal sites, ensuring relative mass proportion of H atoms in the range of 2–4%, optimizing the largest cavity diameter to span 5–7 Å (ultramicropore), and fine-tuning <i>φ</i> within 0.5–0.6. Further using the computational insights obtained, 10 materials were identified with both C<sub>2</sub>H<sub>2</sub>/C<sub>2</sub>H<sub>4</sub> and C<sub>2</sub>H<sub>6</sub>/C<sub>2</sub>H<sub>4</sub> selectivities exceeding 3 from 137,953 hypothetical MOFs and 303,991 generated MOFs through additional molecular simulations. Our study not only provides screened and designed potential candidates for efficient one-step C<sub>2</sub>H<sub>4</sub> purification from ternary C<sub>2</sub>H<sub>2</sub>/C<sub>2</sub>H<sub>4</sub>/C<sub>2</sub>H<sub>6</sub> mixtures but also provides useful information for further performance improvement.","PeriodicalId":42,"journal":{"name":"Journal of Chemical & Engineering Data","volume":null,"pages":null},"PeriodicalIF":2.0000,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Machine Learning Assisted Discovery of Efficient MOFs for One-Step C2H4 Purification from Ternary C2H2/C2H4/C2H6 Mixtures\",\"authors\":\"Tongan Yan, Zhengqing Zhang, Chongli Zhong\",\"doi\":\"10.1021/acs.jced.4c00244\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Purifying C<sub>2</sub>H<sub>4</sub> from a mixture of C<sub>2</sub>H<sub>2</sub>/C<sub>2</sub>H<sub>4</sub>/C<sub>2</sub>H<sub>6</sub> using a single adsorbent is crucial industrially. Yet, the challenge lies in their similar physicochemical properties, leading to low separation efficiency. Additionally, the lack of understanding regarding the structure–performance relationships hinders the development of high-performance metal–organic frameworks (MOFs). In this study, machine learning assisted high-throughput molecular simulation methods are employed to discover efficient MOFs for one-step C<sub>2</sub>H<sub>4</sub> purification. The general material design strategies were proposed based on the analysis of 14,142 CoRE MOF simulation data. These include locking open metal sites, ensuring relative mass proportion of H atoms in the range of 2–4%, optimizing the largest cavity diameter to span 5–7 Å (ultramicropore), and fine-tuning <i>φ</i> within 0.5–0.6. Further using the computational insights obtained, 10 materials were identified with both C<sub>2</sub>H<sub>2</sub>/C<sub>2</sub>H<sub>4</sub> and C<sub>2</sub>H<sub>6</sub>/C<sub>2</sub>H<sub>4</sub> selectivities exceeding 3 from 137,953 hypothetical MOFs and 303,991 generated MOFs through additional molecular simulations. Our study not only provides screened and designed potential candidates for efficient one-step C<sub>2</sub>H<sub>4</sub> purification from ternary C<sub>2</sub>H<sub>2</sub>/C<sub>2</sub>H<sub>4</sub>/C<sub>2</sub>H<sub>6</sub> mixtures but also provides useful information for further performance improvement.\",\"PeriodicalId\":42,\"journal\":{\"name\":\"Journal of Chemical & Engineering Data\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.0000,\"publicationDate\":\"2024-06-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Chemical & Engineering Data\",\"FirstCategoryId\":\"1\",\"ListUrlMain\":\"https://doi.org/10.1021/acs.jced.4c00244\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Chemical & Engineering Data","FirstCategoryId":"1","ListUrlMain":"https://doi.org/10.1021/acs.jced.4c00244","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Machine Learning Assisted Discovery of Efficient MOFs for One-Step C2H4 Purification from Ternary C2H2/C2H4/C2H6 Mixtures
Purifying C2H4 from a mixture of C2H2/C2H4/C2H6 using a single adsorbent is crucial industrially. Yet, the challenge lies in their similar physicochemical properties, leading to low separation efficiency. Additionally, the lack of understanding regarding the structure–performance relationships hinders the development of high-performance metal–organic frameworks (MOFs). In this study, machine learning assisted high-throughput molecular simulation methods are employed to discover efficient MOFs for one-step C2H4 purification. The general material design strategies were proposed based on the analysis of 14,142 CoRE MOF simulation data. These include locking open metal sites, ensuring relative mass proportion of H atoms in the range of 2–4%, optimizing the largest cavity diameter to span 5–7 Å (ultramicropore), and fine-tuning φ within 0.5–0.6. Further using the computational insights obtained, 10 materials were identified with both C2H2/C2H4 and C2H6/C2H4 selectivities exceeding 3 from 137,953 hypothetical MOFs and 303,991 generated MOFs through additional molecular simulations. Our study not only provides screened and designed potential candidates for efficient one-step C2H4 purification from ternary C2H2/C2H4/C2H6 mixtures but also provides useful information for further performance improvement.
期刊介绍:
The Journal of Chemical & Engineering Data is a monthly journal devoted to the publication of data obtained from both experiment and computation, which are viewed as complementary. It is the only American Chemical Society journal primarily concerned with articles containing data on the phase behavior and the physical, thermodynamic, and transport properties of well-defined materials, including complex mixtures of known compositions. While environmental and biological samples are of interest, their compositions must be known and reproducible. As a result, adsorption on natural product materials does not generally fit within the scope of Journal of Chemical & Engineering Data.