International Training Institute for Materials Science (ITIMS), Hanoi University of Science and Technology (HUST), Hai Ba Trung, Hanoi 100000, Vietnam.
Office of Vietnam Space Commission, Ministry of Science and Technology, 113 Tran Duy Hung, Hanoi 100000, Vietnam.
J Nanosci Nanotechnol. 2021 Apr 1;21(4):2545-2551. doi: 10.1166/jnn.2021.19096.
The size, shape and structure of iron particles in iron electrode influence the electrochemical properties of Fe/air cells. In order to improve the electrochemical performance of Fe/air cells, an attempt has been made successfully to synthesize iron oxide particles with different surface morphologies and have been used as negative electrodes. Fe₂O₃ nanoparticles were synthesized by hydrothermal method, in which their different morphologies viz., hollow spheres, tubes and plates have been controlled by the concentration of precursors. All the results showed better cycleability, good discharge capacity of synthesized Fe₂O₃ exhibited improved performance compared to commercial Fe₂O₃. Among the synthesized Fe₂O₃, hollow sphere provided the highest discharge capacity.
铁颗粒的大小、形状和结构会影响铁空气电池的电化学性能。为了提高铁空气电池的电化学性能，我们尝试成功地合成了具有不同表面形态的氧化铁颗粒，并将其用作负极。采用水热法合成了 Fe₂O₃纳米粒子，通过控制前驱体的浓度可以控制其不同的形态，如空心球、管和板。所有结果都表明，与商业 Fe₂O₃相比，合成的 Fe₂O₃具有更好的循环稳定性和放电容量。在合成的 Fe₂O₃中，空心球提供了最高的放电容量。
