Electron spectroscopy for chemical analysis of nickel compounds

Tolman, Chadwick A.; Riggs, William M.; Linn, W. J.; King, Charles M.; Wendt, R. C.

doi:10.1021/ic50130a006

Cited by 149 publications

(52 citation statements)

References 3 publications

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“…The binding energy of the Ni2p levels and the spin-orbit splitting (17.4eV) are in good agreement with literature data [7][8]. The 2p levels of the cation in Ni2 (EDTA) (H20 )4 • 2(H20) are found to be shifted by 2.2 eV towards higher binding energy compared to the nickel metallic signal taken as reference.…”

Section: X-ray Photoelectron Datasupporting

confidence: 89%

“…The most extensive studies of nickel compounds by ESCA are due to Matienzo et al [7] and Tolman et al [8], Matienzo et al [7] studied the XPS spectra of Ni2p3/2 levels for about 70 compounds containing nickel in all of its known oxidation states. The binding energies have been correlated with ligand electronega tivities, derealization of charge on the ligands and stereochemistry; the shake-up satellites were studied to establish a relationship between the shake-up tran sition and paramagnetism.…”

Section: Introductionmentioning

confidence: 99%

“…The binding energies have been correlated with ligand electronega tivities, derealization of charge on the ligands and stereochemistry; the shake-up satellites were studied to establish a relationship between the shake-up tran sition and paramagnetism. Tolman et al [8] reported the XPS data for all of the elements in 46 nickel com pounds containing a variety of ligands and with formal oxidation states of 0, +2, and +4 including olefin, alkyl, aryl, and -allyl organometallic com plexes.…”

Section: Introductionmentioning

confidence: 99%

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Amorphous Complexes MM (EDTA) (H₂O)₄ · 2H₂O . LAXS and XPS Investigation of the Local Structure

Caminiti

Roca

Beltrán-Porter

et al. 1988

Zeitschrift Für Naturforschung A

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The amorphous MM(EDTA)(H20)4-2 H20(M = Ni,Co) substances are made up of infinite chains of alternating "hydrated" and "chelated" octahedra bridged by carboxylate groups: M(H20)4 -M(EDTA)-M(H20)4-... . XPS enables to ascertain that the coordination of the EDTA ligand in the amorphous phase is identical to that in the crystalline phase, i.e., hexacoordination toward the M atom and two bridging groups in the Ni -Ni, Co -Co compounds.

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Section: X-ray Photoelectron Datasupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Amorphous Complexes MM (EDTA) (H₂O)₄ · 2H₂O . LAXS and XPS Investigation of the Local Structure

Caminiti

Roca

Beltrán-Porter

et al. 1988

Zeitschrift Für Naturforschung A

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“…Similar binding energies were obtained for the Steetley montmorillonite treated with NiC12 (856.3 eV) (Table 4) or NiSO, (856.2 eV) ( Table 5). The values are consistent with octrahedral coordination (Tolman et al, 1973;Matienzo et al, 1973); the data are inconsistent with the presence of NiO or Ni(OH)2 as surface species (McIntyre and Cook, 1975). The binding energies were, however, less than that observed for Ni 2+ on chlorite (856.6 eV) by Koppelman and Dillard (1977).…”

Section: Ni-hectorite Samples (mentioning

confidence: 82%

X-Ray Photoelectron Spectroscopic Study of Cobalt(II) and Nickel(II) Sorbed on Hectorite and Montmorillonite

Davison

McWhinnie

Hooper

1991

Clays and clay miner.

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Abstract--The safe disposal of 6~ 63Ni, and 59Ni has required considerable information on the interactions of Co 2+ and Ni 2+ with clay minerals in the geosphere. X-ray photoelectron spectroscopy (XPS) has been used to probe the sorption sites for Co 2+ and Ni 2+ on hectorite and montmorillonite. The spectra were measured for Co-hectorite, Ni-hectorite, and Ni-montmorillonite immediately following ion exchange and after washing the clay two and five times with distilled water. The spectra, recorded following etching of the surface with an argon ion beam, differentiate two sorption sites; a labile (to washing) fraction sorbed as ion pairs, and a non-labile fraction sorbed by ion exchange at broken bond and interlamellar sites. The data were consistent with the sorption of metal ions (Co 2 § NP +) in a c o m m o n "MO6" ligand environment.C& § had a greater affinity for exchange on hectorite than did NiZ+; but NP + had a greater affinity for the surface of montmorillonite than for hectorite. The argon ion etching of Ni-montmorillonite gave rise to a new photopeak of 853 eV, which was probably due to elemental Ni formed consequent to the chemical violation of the surface by ion etching.

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“…Additionally, although the N 1s peak observed for the as-deposited compound at 406.1 eV is characteristic of the NO − 3 ion, 32,33 another peak appears at 403.1 eV in spectrum (b), which further develops as the primary peak progressively vanishes (between spectra (b) and (d) in Fig. 6).…”

Section: A Reduction Of Cobalt Nitratementioning

confidence: 93%

Closing the pressure gap in x-ray photoelectron spectroscopy by membrane hydrogenation

Delmelle

Probst

Alberto

et al. 2015

Review of Scientific Instruments

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Comprehensive studies of gas-solid reactions require the in-situ interaction of the gas at a pressure beyond the operating pressure of ultrahigh vacuum (UHV) X-ray photoelectron spectroscopy (XPS). The recent progress of near ambient pressure XPS allows to dose gases to the sample up to a pressure of 20 mbar. The present work describes an alternative to this experimental challenge, with a focus on H2 as the interacting gas. Instead of exposing the sample under investigation to gaseous hydrogen, the sample is in contact with a hydrogen permeation membrane, through which hydrogen is transported from the outside to the sample as atomic hydrogen. Thereby, we can reach local hydrogen concentrations at the sample inside an UHV chamber, which is equipped with surface science tools, and this corresponds to a hydrogen pressure up to 1 bar without affecting the sensitivity or energy resolution of the spectrometer. This experimental approach is validated by two examples, that is, the reduction of a catalyst precursor for CO2 hydrogenation and the hydrogenation of a water reduction catalyst for photocatalytic H2 production, but it opens the possibility of the new in situ characterisation of energy materials and catalysts. 86, 053104 (2015) Closing the pressure gap in x-ray photoelectron spectroscopy by membrane hydrogenation Comprehensive studies of gas-solid reactions require the in-situ interaction of the gas at a pressure beyond the operating pressure of ultrahigh vacuum (UHV) X-ray photoelectron spectroscopy (XPS). The recent progress of near ambient pressure XPS allows to dose gases to the sample up to a pressure of 20 mbar. The present work describes an alternative to this experimental challenge, with a focus on H 2 as the interacting gas. Instead of exposing the sample under investigation to gaseous hydrogen, the sample is in contact with a hydrogen permeation membrane, through which hydrogen is transported from the outside to the sample as atomic hydrogen. Thereby, we can reach local hydrogen concentrations at the sample inside an UHV chamber, which is equipped with surface science tools, and this corresponds to a hydrogen pressure up to 1 bar without affecting the sensitivity or energy resolution of the spectrometer. This experimental approach is validated by two examples, that is, the reduction of a catalyst precursor for CO 2 hydrogenation and the hydrogenation of a water reduction catalyst for photocatalytic H 2 production, but it opens the possibility of the new in situ characterisation of energy materials and catalysts. C 2015 AIP Publishing LLC. REVIEW OF SCIENTIFIC INSTRUMENTS[http://dx

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Electron spectroscopy for chemical analysis of nickel compounds

Cited by 149 publications

References 3 publications

Amorphous Complexes MM (EDTA) (H₂O)₄ · 2H₂O . LAXS and XPS Investigation of the Local Structure

Amorphous Complexes MM (EDTA) (H₂O)₄ · 2H₂O . LAXS and XPS Investigation of the Local Structure

X-Ray Photoelectron Spectroscopic Study of Cobalt(II) and Nickel(II) Sorbed on Hectorite and Montmorillonite

Closing the pressure gap in x-ray photoelectron spectroscopy by membrane hydrogenation

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Electron spectroscopy for chemical analysis of nickel compounds

Cited by 149 publications

References 3 publications

Amorphous Complexes MM (EDTA) (H2O)4 · 2H2O . LAXS and XPS Investigation of the Local Structure

Amorphous Complexes MM (EDTA) (H2O)4 · 2H2O . LAXS and XPS Investigation of the Local Structure

X-Ray Photoelectron Spectroscopic Study of Cobalt(II) and Nickel(II) Sorbed on Hectorite and Montmorillonite

Closing the pressure gap in x-ray photoelectron spectroscopy by membrane hydrogenation

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Product

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Amorphous Complexes MM (EDTA) (H₂O)₄ · 2H₂O . LAXS and XPS Investigation of the Local Structure

Amorphous Complexes MM (EDTA) (H₂O)₄ · 2H₂O . LAXS and XPS Investigation of the Local Structure