Experimental Research on the Preparation of K<sub>2</sub>CO<sub>3</sub>/Expanded Vermiculite Composite Energy Storage Material
Thermochemical adsorption energy storage is a potential energy utilization technology. Among these technologies, the composite energy storage material prepared by K<sub>2</sub>CO<sub>3</sub> and expanded vermiculite (EVM) shows excellent performance. In this paper, the influe...
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MDPI AG
2022-05-01
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| Online Access: | https://www.mdpi.com/1996-1944/15/10/3702 |
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| author | Dequan Zou Xiangji Yue Tianyi He Jianan Ding Dechun Ba |
| author_facet | Dequan Zou Xiangji Yue Tianyi He Jianan Ding Dechun Ba |
| author_sort | Dequan Zou |
| collection | DOAJ |
| description | Thermochemical adsorption energy storage is a potential energy utilization technology. Among these technologies, the composite energy storage material prepared by K<sub>2</sub>CO<sub>3</sub> and expanded vermiculite (EVM) shows excellent performance. In this paper, the influence of the preparation process using the impregnation method and vacuum impregnation method on K<sub>2</sub>CO<sub>3</sub>/EVM composite material is studied. The preparation plan is further optimized with the solution concentration and the expanded vermiculite particle size as variables. In the experiment, mercury intrusion porosimetry (MIP) is used to measure the porosity and other parameters. Additionally, with the help of scanning electron microscopy (SEM), the morphological characteristics of the materials are obtained from a microscopic point of view. The effects of different preparation parameters are evaluated by comparing the experimental results. The results show that the K<sub>2</sub>CO<sub>3</sub> specific gravity of the composite material increases with the increase of the vacuum degree, up to 70.440 wt.% (the vacuum degree is 6.7 kPa). Expanded vermiculite with a large particle size (3~6 mm) can carry more K<sub>2</sub>CO<sub>3</sub>, and content per cubic centimeter of K<sub>2</sub>CO<sub>3</sub> can be as high as 0.466 g. |
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| format | Article |
| id | doaj.art-5bd7b57e868a470fb817354269a726a0 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T03:29:50Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-5bd7b57e868a470fb817354269a726a02023-11-23T11:59:23ZengMDPI AGMaterials1996-19442022-05-011510370210.3390/ma15103702Experimental Research on the Preparation of K<sub>2</sub>CO<sub>3</sub>/Expanded Vermiculite Composite Energy Storage MaterialDequan Zou0Xiangji Yue1Tianyi He2Jianan Ding3Dechun Ba4School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, ChinaSchool of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, ChinaSchool of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, ChinaSchool of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, ChinaSchool of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, ChinaThermochemical adsorption energy storage is a potential energy utilization technology. Among these technologies, the composite energy storage material prepared by K<sub>2</sub>CO<sub>3</sub> and expanded vermiculite (EVM) shows excellent performance. In this paper, the influence of the preparation process using the impregnation method and vacuum impregnation method on K<sub>2</sub>CO<sub>3</sub>/EVM composite material is studied. The preparation plan is further optimized with the solution concentration and the expanded vermiculite particle size as variables. In the experiment, mercury intrusion porosimetry (MIP) is used to measure the porosity and other parameters. Additionally, with the help of scanning electron microscopy (SEM), the morphological characteristics of the materials are obtained from a microscopic point of view. The effects of different preparation parameters are evaluated by comparing the experimental results. The results show that the K<sub>2</sub>CO<sub>3</sub> specific gravity of the composite material increases with the increase of the vacuum degree, up to 70.440 wt.% (the vacuum degree is 6.7 kPa). Expanded vermiculite with a large particle size (3~6 mm) can carry more K<sub>2</sub>CO<sub>3</sub>, and content per cubic centimeter of K<sub>2</sub>CO<sub>3</sub> can be as high as 0.466 g.https://www.mdpi.com/1996-1944/15/10/3702thermochemical energy storagesalt hydratesvacuum impregnationK<sub>2</sub>CO<sub>3</sub>expanded vermiculite |
| spellingShingle | Dequan Zou Xiangji Yue Tianyi He Jianan Ding Dechun Ba Experimental Research on the Preparation of K<sub>2</sub>CO<sub>3</sub>/Expanded Vermiculite Composite Energy Storage Material Materials thermochemical energy storage salt hydrates vacuum impregnation K<sub>2</sub>CO<sub>3</sub> expanded vermiculite |
| title | Experimental Research on the Preparation of K<sub>2</sub>CO<sub>3</sub>/Expanded Vermiculite Composite Energy Storage Material |
| title_full | Experimental Research on the Preparation of K<sub>2</sub>CO<sub>3</sub>/Expanded Vermiculite Composite Energy Storage Material |
| title_fullStr | Experimental Research on the Preparation of K<sub>2</sub>CO<sub>3</sub>/Expanded Vermiculite Composite Energy Storage Material |
| title_full_unstemmed | Experimental Research on the Preparation of K<sub>2</sub>CO<sub>3</sub>/Expanded Vermiculite Composite Energy Storage Material |
| title_short | Experimental Research on the Preparation of K<sub>2</sub>CO<sub>3</sub>/Expanded Vermiculite Composite Energy Storage Material |
| title_sort | experimental research on the preparation of k sub 2 sub co sub 3 sub expanded vermiculite composite energy storage material |
| topic | thermochemical energy storage salt hydrates vacuum impregnation K<sub>2</sub>CO<sub>3</sub> expanded vermiculite |
| url | https://www.mdpi.com/1996-1944/15/10/3702 |
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