X-ray photoelectron spectroscopy of Co3O4, Fe3O4, Mn3O4, and related compounds

Oku, Masaoki; Hirokawa, Kichinosuke

doi:10.1016/0368-2048(76)80034-5

Cited by 386 publications

(182 citation statements)

References 23 publications

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“…23,24 It is to be mentioned here that metallic Mn has a 2p 3/2 line at 639 eV, while the line from Mn 3+ has a binding energy of ϳ641.7 eV. 21,23,25 The observation of a satellite line ͑third component͒ spaced by ϳ5.4 eV from the first component further supports that the dominant contribution is from Mn 2+ . The satellite excitation is typical for MnO ͑Refs.…”

Section: -23mentioning

confidence: 57%

Correlation of Mn charge state with the electrical resistivity of Mn doped indium tin oxide thin films

Kumar¹,

Hedhili²,

Alshareef³

et al. 2010

Applied Physics Letters

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Correlation of charge state of Mn with the increase in resistivity with Mn concentration is demonstrated in Mn-doped indium tin oxide films. Bonding analysis shows that Mn 2p3/2 core level can be deconvoluted into three components corresponding to Mn2+ and Mn4+ with binding energies 640.8 eV and 642.7 eV, respectively, and a Mn2+ satellite at ∼5.4 eV away from the Mn2+ peak. The presence of the satellite peak unambiguously proves that Mn exists in the +2 charge state. The ratio of concentration of Mn2+ to Mn4+ of ∼4:1 suggests that charge compensation occurs in the n-type films causing the resistivity increase.

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Section: -23mentioning

confidence: 57%

Correlation of Mn charge state with the electrical resistivity of Mn doped indium tin oxide thin films

Kumar¹,

Hedhili²,

Alshareef³

et al. 2010

Applied Physics Letters

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“…As shown in Fig. 4, binding energies of 779.7 eV (2p 1/3 ) and 794.6 eV (2p 3/2 ) were measured, with a spin-orbit separation of 14.9 eV, which is characteristic of Co 3 O 4 [25]. The two shake-up satellites with spin-orbit separations of 6.0 eV (T 1 ) and 10 eV (T 2 ) were assigned to Co 2?…”

Section: Chemical and Physical Propertiesmentioning

confidence: 90%

Glycerol Hydrogenolysis over Co Catalysts Derived from a Layered Double Hydroxide Precursor

Guo

Song

et al. 2011

Catal Lett

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Co catalysts, obtained from a layered double Co-Zn-Al hydroxide, are highly active and stable towards the hydrogenolysis of glycerol to 1,2-propanediol (1,2-PDO) in aqueous media. The Co-673 catalyst, containing a CoO species, provided a glycerol conversion of 67.7% and a 1,2-PDO selectivity of 50.5%. The Co-873 catalyst comprising 16 nm Co nanoparticles gave a glycerol conversion of 70.6% and a 1,2-PDO selectivity of 57.8%. It was revealed that the CoO species in the Co-673 catalyst was readily converted to 50 nm Co particles under the glycerol hydrogenolysis conditions. The Co catalysts maintained a stable size and phase in recycling tests.

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“…5c. The peaks for Mn2p 1/2 and Mn2p 3/2 are located at ß653.8 42 and 640.5 eV, 43 respectively, with a spinenergy separation of 13.3 eV. The above two peaks could be identified as arising due to the existence of Mn 4+ and Mn 2+ , respectively.…”

Section: Xps Studiesmentioning

confidence: 81%

“…The above two peaks could be identified as arising due to the existence of Mn 4+ and Mn 2+ , respectively. 42,43 The observed peak component for Mn2p 3/2 at higher energy may be due to probable chemical bonding or charging effect of the PVDF matrix (when poled) as Mn dopant at Zn lattice site will preferentially be influenced by ambience of the poled Mn-ZnO-PVDF film. Thus, the Mn-ZnO may be chemically attached to the PVDF matrix rather than an inclusion.…”

Section: Xps Studiesmentioning

confidence: 99%

Structural and Optical Properties of Manganese‐Doped NanocrystallineZinc Oxide/Polyvinylidene Fluoride Flexible Composite Thin Films Deposited by the Sol–Gel Method

et al. 2016

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Mn-doped nanocrystalline ZnO (Mn x Zn 1-x O) was incorporated in the polyvinylidene fluoride thin film for obtaining the free-standing flexible film by the sol-gel technique. The effect of Mn-ZnO loading on the optical and microstructural properties of the Mn-ZnO/polyvinylidene fluoride (PVDF) composite films was studied critically for the as-deposited and the poled samples. X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy were carried out to study the bonding environment. The XPS spectra recorded for poled samples from the fluorine-terminated surface showed a very strong peak at ß695 eV for F1s arising due to C-F bonds. Raman studies showed the presence of the predominant β phase of PVDF in the sample. Peaks related to ZnO nanocrystals were also observed in the Raman spectra. Photoluminescence spectra indicated a strong emission band at ß2.79 eV in the ultraviolet region arising out of near band edge emission of free excitons. C

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X-ray photoelectron spectroscopy of Co3O4, Fe3O4, Mn3O4, and related compounds

Cited by 386 publications

References 23 publications

Correlation of Mn charge state with the electrical resistivity of Mn doped indium tin oxide thin films

Correlation of Mn charge state with the electrical resistivity of Mn doped indium tin oxide thin films

Glycerol Hydrogenolysis over Co Catalysts Derived from a Layered Double Hydroxide Precursor

Structural and Optical Properties of Manganese‐Doped NanocrystallineZinc Oxide/Polyvinylidene Fluoride Flexible Composite Thin Films Deposited by the Sol–Gel Method

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