A facile and highly efficient short-time homogenization hydrothermal approach for the smart production of high-quality α-Fe2O3 for rechargeable lithium batteries. Issue 32 (26th July 2017)

• Record Type: Journal Article
• Authors: Santhoshkumar, P.; Prasanna, K.; Jo, Yong Nam; Sivagami, I. Nirmal; Kang, Suk Hyun; Lee, Chang Woo
• Is Part Of: Journal of materials chemistry. Volume 5:Issue 32(2017)
• Page Start: 16712
• Page End: 16721
• Publication Date: 2017-07-26
• Subjects: Materials -- Research -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental sciences -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c7ta04797e
• Languages: English
• ISSNs: 2050-7488

Abstract

Abstract : In the present work, we have synthesized zero-dimensional (0D) and three-dimensional (3D) iron oxide (α-Fe2 O3 ) sub-micron particles using a one-pot hydrothermal approach. Abstract : In the present work, we have synthesized zero-dimensional (0D) and three-dimensional (3D) iron oxide (α-Fe2 O3 ) sub-micron particles using a one-pot hydrothermal approach. Morphological studies reveal that the as-synthesized spherical α-Fe2 O3 (SFO) material consists of nanospheres with void spaces. The prepared SFO delivers a high specific surface area of 100.80 m 2 g −1 and significantly increases the contact area between the electrode and the electrolyte. The initial galvanostatic specific capacity of the SFO materials was 1306 mA h g −1 at a current density of 100 mA g −1, which is superior to that of bare cubic α-Fe2 O3 (CFO). Moreover, the mesoporous SFO shows a good cycling stability with a capacity retention rate of 91.4% after 100 cycles. These attractive results suggest that the mesoporous SFO shows a good electrochemical performance as a negative electrode material for high-performance Li-ion batteries.