| Influence of copper addition to the anode on the performance of zinc-air battery |
| کد مقاله : 1013-CNF |
| نویسندگان: |
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مهسا حاج هادیان *1، محمد محمدی تقی آبادی2، محمد ژِیانی1 1گروه آموزشی شیمی فیزیک، دانشکده شیمی، دانشگاه صنعتی اصفهان، اصفهان، ایران 2گروه آموزشی شیمی فیزیک ، دانشکده علوم پایه ، دانشگاه تربیت مدرس ، تهران ، ایران |
| چکیده مقاله: |
| With surging interest in high energy density batteries, much attention has recently been devoted to metal-air batteries. Metal-air batteries are among the most promising next-generation energy storage devices. Among which Zinc-air batteries are the most suitable due to the availability of raw materials, low cost, and high energy density. But they face problems, one of which is the reaction of hydrogen evolution that occurs at the zinc electrode and disrupts battery activity [1]. Zinc has a more negative reduction potential than hydrogen, which consequently creates the problem of a hydrogen evolution reaction (the following reaction). many attempts have been made to suppress hydrogen gas evolution. Mercury has been found to the most effective additive for suppressing HER; but is prohibited from use due to environmental concerns. In general, metals that have less potential than hydrogen, such as copper, should be used to reduce the evolution of hydrogen [2]. Zn+2H_2 O→ZnO+H_2 In this study, we investigated the effect of Cu additive on the anode activity of zinc-air battery. Adding 15wt% Cu to the anode on a carbon paper substrate, the amount of hydrogen produced during the test can be reduced, the results of which can be seen in the term of anode open circuit potential changes versus time (Fig.1) |
| کلیدواژه ها: |
| Zinc-air battery, Zinc electrode, Cu, Overpotential, Hydrogen evolution |
| وضعیت : چکیده برای ارائه به صورت پوستر پذیرفته شده است |