Dealloying induced nanoporosity evolution of less noble metals in Mg ion batteries
Rechargeable Mg ion batteries (MIBs) have aroused great interests, and using alloy-type anodes and conventional electrolytes offers an effective way to develop high energy density Mg battery systems. However, the dealloying-induced nanoporosity evolution of alloy-type anodes during the charging proc...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2021-11-01
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| Series: | Journal of Magnesium and Alloys |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2213956721001067 |
| _version_ | 1797203745300283392 |
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| author | Jiazheng Niu Meijia Song Ying Zhang Zhonghua Zhang |
| author_facet | Jiazheng Niu Meijia Song Ying Zhang Zhonghua Zhang |
| author_sort | Jiazheng Niu |
| collection | DOAJ |
| description | Rechargeable Mg ion batteries (MIBs) have aroused great interests, and using alloy-type anodes and conventional electrolytes offers an effective way to develop high energy density Mg battery systems. However, the dealloying-induced nanoporosity evolution of alloy-type anodes during the charging process has received less attention. Herein, using a magnetron-sputtered Mg3Bi2 film as an example, we investigate its electrochemical dealloying and associated structural evolution in an all-phenyl-complex electrolyte by in-situ and ex-situ characterizations. The microstructures and length scales of nanoporous Bi can be facilely regulated by changing electrochemical parameters, and there exists a good linear correlation between the surface diffusivity of Bi and the applied current density/potential scan rate on a logarithm scale. More importantly, the self-supporting nanoporous Bi electrodes deliver satisfactory Mg storage performance and alloy-type anodes show good compatibility with conventional electrolytes. Furthermore, the charging-induced dealloying in MIBs is a general strategy to fabricate nanoporous less noble metals like Sn, Pb, In, Cu, Zn and Al, which shows advantages over chemical dealloying in aqueous solutions. Our findings highlight the significance of nanoporosity evolution of alloy-type anodes during dealloying, and open opportunities for the fabrication of nanoporous reactive metals. |
| first_indexed | 2024-04-24T08:24:13Z |
| format | Article |
| id | doaj.art-e8486ef9ec3d48d9b40d38451518c745 |
| institution | Directory Open Access Journal |
| issn | 2213-9567 |
| language | English |
| last_indexed | 2024-04-24T08:24:13Z |
| publishDate | 2021-11-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Magnesium and Alloys |
| spelling | doaj.art-e8486ef9ec3d48d9b40d38451518c7452024-04-16T23:57:13ZengKeAi Communications Co., Ltd.Journal of Magnesium and Alloys2213-95672021-11-019621222132Dealloying induced nanoporosity evolution of less noble metals in Mg ion batteriesJiazheng Niu0Meijia Song1Ying Zhang2Zhonghua Zhang3Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jingshi Road 17923, Jinan 250061, P.R. ChinaKey Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jingshi Road 17923, Jinan 250061, P.R. ChinaKey Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jingshi Road 17923, Jinan 250061, P.R. ChinaCorresponding author.; Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jingshi Road 17923, Jinan 250061, P.R. ChinaRechargeable Mg ion batteries (MIBs) have aroused great interests, and using alloy-type anodes and conventional electrolytes offers an effective way to develop high energy density Mg battery systems. However, the dealloying-induced nanoporosity evolution of alloy-type anodes during the charging process has received less attention. Herein, using a magnetron-sputtered Mg3Bi2 film as an example, we investigate its electrochemical dealloying and associated structural evolution in an all-phenyl-complex electrolyte by in-situ and ex-situ characterizations. The microstructures and length scales of nanoporous Bi can be facilely regulated by changing electrochemical parameters, and there exists a good linear correlation between the surface diffusivity of Bi and the applied current density/potential scan rate on a logarithm scale. More importantly, the self-supporting nanoporous Bi electrodes deliver satisfactory Mg storage performance and alloy-type anodes show good compatibility with conventional electrolytes. Furthermore, the charging-induced dealloying in MIBs is a general strategy to fabricate nanoporous less noble metals like Sn, Pb, In, Cu, Zn and Al, which shows advantages over chemical dealloying in aqueous solutions. Our findings highlight the significance of nanoporosity evolution of alloy-type anodes during dealloying, and open opportunities for the fabrication of nanoporous reactive metals.http://www.sciencedirect.com/science/article/pii/S2213956721001067Mg ion batteriesAlloy-type anodesDealloyingNanoporous metalsSurface diffusivity |
| spellingShingle | Jiazheng Niu Meijia Song Ying Zhang Zhonghua Zhang Dealloying induced nanoporosity evolution of less noble metals in Mg ion batteries Journal of Magnesium and Alloys Mg ion batteries Alloy-type anodes Dealloying Nanoporous metals Surface diffusivity |
| title | Dealloying induced nanoporosity evolution of less noble metals in Mg ion batteries |
| title_full | Dealloying induced nanoporosity evolution of less noble metals in Mg ion batteries |
| title_fullStr | Dealloying induced nanoporosity evolution of less noble metals in Mg ion batteries |
| title_full_unstemmed | Dealloying induced nanoporosity evolution of less noble metals in Mg ion batteries |
| title_short | Dealloying induced nanoporosity evolution of less noble metals in Mg ion batteries |
| title_sort | dealloying induced nanoporosity evolution of less noble metals in mg ion batteries |
| topic | Mg ion batteries Alloy-type anodes Dealloying Nanoporous metals Surface diffusivity |
| url | http://www.sciencedirect.com/science/article/pii/S2213956721001067 |
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