Investigation nitrogen-doped carbon substrates with Urea/Ammonia source composite with Spinel structure as efficient cathodes in Magnesium-ion Batteries

کد مقاله : 1173-17THECSI

نویسندگان

علی زین الدینی *، سهیلا جوادیان، نیما دلیر دانشگاه تربیت مدرس

چکیده مقاله

Batteries are one of the technologies that have played an important role in the development of human societies. Lithium-ion batteries have played a role as one of the main technologies in smart phones and electric cars for decades, but with the development and use of electronic resources, the need for more powerful resources is felt [1]. One of these technologies is multi-capacity batteries such as magnesium-ion batteries, which can be used as suitable candidates for post-lithium [2,3]. One of the cathodes used is spinel type cathodes due to their abundance and easy synthesis. However, the low mechanical stability has caused this type of cathodes to be made into composite with carbon substrates [4]. In this research, the carbon substrate used is reduced graphene oxide, which is synthesized with two different nitrogen source materials in the form of reduced graphene oxide with nitrogen doping. used with the urea nitrogen source provided a better and higher solution in terms of stability and capacity than the ammonia nitrogen source. The results are shown in Figure 1. As can be seen in Figure 1, at a current density of 500 mA.g-1, the capacity of the cathode with nitrogen-doped carbon substrate with urea source is 220 mA.h.g-1, while for nitrogen-doped carbon substrate with ammonia source the capacity of 120 mA.h.g-1 has been achieved. In addition, higher stability is achieved through urea source than ammonia.

کلیدواژه ها

Carbon Substrate, Mg-ion Battery, Spinel Cathode, Urea/Ammonia Source

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