Cation distribution in NixMg1−xFe2O4 studied by XPS and Mössbauer spectroscopy

Mittal, Vinit K.; Chandramohan, P.; Bera, Santanu; Srinivasan, M.; Velmurugan, S.; Narasimhan, S.V.

doi:10.1016/j.ssc.2005.10.019

Cited by 119 publications

(41 citation statements)

References 14 publications

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“…The high-resolution spectrum shows an Fe2p3/2 peak at 711 eV. This result is consistent with others reported in the literature [35,36]. As indicated by a dotted line in Fig.…”

Section: Resultssupporting

confidence: 92%

“…[34] Compared with CNT/NiFeOH, there is a slight shift of Ni2p for CNT/NiFe2O4, and the peak assigned to Ni2p is located at 855.2 eV. [35] This shift could be attributed to the influence of NiFe2O4 formation after hydrothermal synthesis. The presence of Ni on the CNT surface for CNT/NiFeOH, even after washing several times, also supported the suggestion that Ni 2+ was adsorbed on the CNT surface.…”

Section: Resultsmentioning

confidence: 99%

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Hydrothermal Synthesis of Carbon Nanotube/Nickel Ferrite Nanocomposites

Jin

et al. 2012

Sen-i Gakkaishi

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We report a simple hydrothermal synthesis of carbon nanotube/nickel ferrite (CNT/NiFe2O4) nanocomposites. The CNTs used in this work were pretreated with nitric acid. The evolution of the synthesis of the CNT/NiFe2O4 nanocomposites was studied using X-ray photoelectron spectroscopy, X-ray diffraction, energy-dispersive X-ray spectroscopy, and transmission electron microscopy. The results suggest that NiFe2O4 nanoparticles were synthesized in situ on the CNT surface. Vibrating-sample magnetometer measurements showed that the CNT/NiFe2O4 nanocomposites exhibit typical soft ferromagnetic behavior with saturation magnetization (Ms) of about 24 emu/g.

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“…The high-resolution spectrum shows an Fe2p3/2 peak at 711 eV. This result is consistent with others reported in the literature [35,36]. As indicated by a dotted line in Fig.…”

Section: Resultssupporting

confidence: 92%

Section: Resultsmentioning

confidence: 99%

Hydrothermal Synthesis of Carbon Nanotube/Nickel Ferrite Nanocomposites

Jin

et al. 2012

Sen-i Gakkaishi

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“…However the satellite peaks for Fe 3+ and Fe 2+ are found to be important. The Fe 2+ 2p 3/2 peak at 709.5 eV is always associated with a satellite peak at 6.0 eV above the principal peak where as Fe 3+ 2p 3/2 peak at 711.2 eV is associated with a satellite peak at 8.0 eV [40]. The difference in the satellite peaks of the Fe 3+ and Fe 2+ is due to two final states caused by photoemission of Fe.…”

Section: Xps Analyses Of Nife 2 O 4 Nanoparticlesmentioning

confidence: 89%

Magnetic properties of thermal plasma synthesized nanocrystalline nickel ferrite (NiFe2O4)

Nawale

Kanhe

Patil

et al. 2011

Journal of Alloys and Compounds

138

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“…XPS is a well-known surface-sensitive technique for the quantication of cations in oxide materials including spinels. [31][32][33][34][35][36][37][38][39] From the Mn 2p 3/2 spectra of the spinel materials (Fig. 5) ).…”

Section: Morphological and Structural Characterizationmentioning

confidence: 99%

Microwave-assisted optimization of the manganese redox states for enhanced capacity and capacity retention of LiAl_xMn_2−xO₄ (x = 0 and 0.3) spinel materials

et al. 2015

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Microwave irradiation at the pre-and post-annealing steps of the synthesis of LiAl x Mn 2Àx O 4 (x ¼ 0 and 0.3) spinel cathode materials for rechargeable lithium ion batteries is a useful strategy to optimize the average manganese valence number (n Mn ) for enhanced capacity and capacity retention. The strategy impacts on the lattice parameter, average manganese valence, particle size and morphology, reversibility of the deintercalation/intercalation processes, and capacity retention upon continuous cycling. Microwave irradiation is able to shrink the particles for improved crystallinity. The XPS data clearly suggest that microwave irradiation can be used to tune the manganese valence (n Mn ), and that the LiAl x Mn 2Àx O 4 with n Mn z 3.5+ gives the best electrochemical performance. These new findings promise to revolutionize how we use microwave irradiation in the preparation of energy materials and various other materials for energy storage and conversion materials for enhanced performance.

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Cation distribution in NixMg1−xFe2O4 studied by XPS and Mössbauer spectroscopy

Cited by 119 publications

References 14 publications

Hydrothermal Synthesis of Carbon Nanotube/Nickel Ferrite Nanocomposites

Hydrothermal Synthesis of Carbon Nanotube/Nickel Ferrite Nanocomposites

Magnetic properties of thermal plasma synthesized nanocrystalline nickel ferrite (NiFe2O4)

Microwave-assisted optimization of the manganese redox states for enhanced capacity and capacity retention of LiAl_xMn_2−xO₄ (x = 0 and 0.3) spinel materials

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Cation distribution in NixMg1−xFe2O4 studied by XPS and Mössbauer spectroscopy

Cited by 119 publications

References 14 publications

Hydrothermal Synthesis of Carbon Nanotube/Nickel Ferrite Nanocomposites

Hydrothermal Synthesis of Carbon Nanotube/Nickel Ferrite Nanocomposites

Magnetic properties of thermal plasma synthesized nanocrystalline nickel ferrite (NiFe2O4)

Microwave-assisted optimization of the manganese redox states for enhanced capacity and capacity retention of LiAlxMn2−xO4 (x = 0 and 0.3) spinel materials

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Product

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Microwave-assisted optimization of the manganese redox states for enhanced capacity and capacity retention of LiAl_xMn_2−xO₄ (x = 0 and 0.3) spinel materials