High specific surface area α-Fe2O3 nanostructures as high performance electrode material for supercapacitors

One-Step Self-Assembly Synthesis α-Fe2O3 with Carbon-Coated Nanoparticles for Stabilized and Enhanced Supercapacitors Electrode

“…Supercapacitors are considered to be a promising candidate material for energy storage because of their advantages of high power density, excellent rate capacitance, long cycle life, and so on [5][6][7]. The supercapacitor can be classified into two categories: electric double-layer capacitors and pseudocapacitors.…”

Influence of PVP on Solvothermal Synthesized Fe₃O₄/Graphene Composites as Anodes for Lithium-ion Batteries

“…Figure 1d shows the Raman spectra of graphite, GO, Fe 3 O 4 / G-PVP and Fe 3 O 4 /G, which provide the information related to the carbon structural changes during the synthesis process. Two bands can be observed in the range from 1000 to 1800 cm ¹1 in each Raman spectrum: D band is ascribed to defects like edges and disordered sp 3 bonded carbon, while the G band is corresponded to in-plane stretching of ordered sp 2 bonded carbon. Both bands position and the bands intensity are highly susceptible for structure Defects such as edges and vacancies in carbonaceous materials are able to accommodate additional Li.…”

“…Anode and cathode materials play dominant roles in the performance of LIBs. Significant achievements have been gained in the research of anode materials, including SnO 2 , CuO, Mn 3 1-5 Fe 3 O 4 is highly favored as an anode material because of its lower toxicity, natural abundance, superior safety, and a high theoretical capacity of 926 mA h g ¹1 at a relative low potential. Nevertheless, the electrode polarization, agglomeration and huge volume change of Fe 3 O 4 materials during lithium insertion/extraction result in capacity fade and poor cycle performance, which has been a main obstacle to its application.…”

Study on the Preparation of Nanometer α-Fe2O3by Sonochemical Hydrolysis Method

“…Hematite (Į-Fe 2 O 3 ) is one of the most studied nanocrystals due to its wide range of applications, such as in catalysts, pigments, magnetic materials, gas sensors, and lithium ion batteries [8][9][10][11][12][13] . Inspired by its excellent characteristics, much effort has been made to fabricate the nanostructured Į-Fe 2 O 3 with different sizes and shapes because of its strong size-and shape-dependent properties.Presently, the methods of preparing ferric oxide is air-oxidation gel-solmethod,forced-hydrolyze method,colloid chemistry,micro-latex method [14][15][16] .…”