Direct Current (DC) Electric Field-Enabled Beating Heart of Ga-Based Liquid Metal
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Bingxing Wang [3] ; Qi Wang [3] ; Xiaoying Jiang [3] ; Yu Zhang [3] ; Yongcai Zhang [1] ; Yuping Zhang [2]
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[1] Yangzhou University
Yangzhou University
China
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[2] Hunan University of Arts and Science
Hunan University of Arts and Science
China
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[3] Henan Institute of Science and Technology, China
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- Localización: Journal of chemical education, ISSN 0021-9584, Vol. 99, Nº 9, 2022, págs. 3337-3341
- Idioma: inglés
- Texto completo no disponible (Saber más ...)
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Resumen
Mercury beating heart (MBH) is a well-known demonstration of redox processes. However, the development and application of the MBH system are significantly restricted due to its safety issues. Here, a direct current electric field-enabled gallium-based liquid metal heartbeat in a salt solution or alkaline solution is introduced as a demonstration appropriate for undergraduate general chemistry. The former oscillation occurs on the cathode, the latter on the anode. The objective is to achieve a visually appealing effect in the classroom and motivate students to understand the underlying concepts. Students are encouraged to assemble the instrument and perform the demonstration under supervision. Apart from the gallium-based liquid metal and a helping-hand stand, the demonstration utilizes common laboratory apparatus, and the materials for the solutions can be obtained in an undergraduate general chemistry laboratory.
