The structural transformation of γ-Fe2O3intoα-Fe2O3occurs either directly or via ε-Fe2O3, depending on the rate of nanocrystal agglomeration, the concentration of iron oxide in the nanocomposite and the properties of silica matrix. A phase diagram is established as a function of laser ...
The electronic structures of BaTiO 3 @ X (core@shell) nanoparticles ( X = γ -Fe 2 O 3 , Fe 3 O 4 , and Fe) have been investigated by employing soft x-ray-absorption spectroscopy and x-ray magnetic circular dichroism (XMCD). It is found that the valence states of Ti ions near ...
The gamma-Fe2O3 shows high reversibility than alpha-Fe2O3 while discharging at a deep discharge voltage of 0.01 V. The alpha-Fe2O3 changes to Fe3O4 during sodium extraction, while the gamma-Fe2O3 remains unaltered upon cycling. The gamma-Fe2O3 shows high electrochemical performance ...
Besides, in gamma-Fe2O3/alpha-MnO2/PS reaction system, about 92.79% of Rhodamine B could be removed within 30 min. The result proves that when the gamma-Fe2O3 content is 12.5%, gamma-Fe2O3/alpha-MnO2 nanocomposite exhibits superior activation performance. gamma-Fe2O3/alpha-MnO2/PS ...
In this work, magnetic alpha-FeOOH/gamma-Fe2O3 nanocomposite was one-pot synthesized by a simple pH gradient method. The obtained sample was found to be an efficient Fenton catalyst for the degradation and mineralization of tetracycline hydrochloride (TC) over a wide pH range under visible ...
Synthesis of unit-cell-thick alpha-Fe2O3 nanosheets and their transformation to gamma-Fe2O3 nanosheets with enhanced LIB performancesHematiteMaghemiteNanosheetsUnit cell thicknessAnode materialsThe synthesis of ultrathin magnetic nanosheets isDang
This work reports on Fe2O3 and ZnO materials for lactate quantification. In the synthesis, the bi-phase γ-/α-Fe2O3 and γ-/α-Fe2O3/ZnO nanoparticles (NPs) were obtained for their application in a lactate colorimetric sensor. The crystalline phases of
Fe-O thin films were prepared on an Al 2 O 3 substrate by a plasma-enhanced chemical vapor deposition (PECVD) technique. The phase transformation of Fe-O thin films was mainly controlled by the substrate temperature and the reduction-oxidation process. The as deposited α -Fe 2 O 3 phase...
Constructing nanotubular morphologies and heterojunctions are two effective strategies to enhance the charge separation and transport of alpha-Fe2O3 for improved photocatalytic performance, while the fabrication of porous aFe(2)O(3) nanotubes with precisely tailored wall thickness, pore structure, ...
C. Dipolar-Distribution Cavity γ-Fe2O3 @C@α-MnO2 Nanospindle with Broadened Microwave Absorption Bandwidth by Chemically Etching. Small 2017, 13,1602779.W. You, H. Bi, W. She, Y. Zhang, R. Che, Dipolar-distribution cavity gamma- Fe2O3@C@alpha-MnO2 nanospindle with broadened ...