X-Ray photoelectron spectroscopy of nickel boride catalysts: Correlation of surface states with reaction products in the hydrogenation of acrylonitrile

Schreifels, John A.; Maybury, P. Calvin; Swartz, W. E.

doi:10.1016/0021-9517(80)90294-8

Cited by 206 publications

(73 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It can be seen that the Ni 2p3 = 2 binding energy, (852.3 AE 0.01) eV, is consistent with that for bulk metallic nickel, further supporting our conclusion that the nickel in the catalyst is nickel metal. This test is also in a good agreement with the literature on NiB, [12,14,30] and the XPS data for other metals such as measurements for the Co 2p3 = 2 , Fe 2p3 = 2 , Pd 3d5 = 2 , and Pt 4f7 = 2 levels in the corresponding M-B-type catalysts. [9,12] The surface oxidation of the nickel metal was observed, and the corresponding XPS peak was at 855.7 eV, in agreement with the XRD data in which a small amount of nickel oxide was present ( Figure 3 and ref.…”

Section: Resultssupporting

confidence: 78%

“…This boron species can be easily differentiated from boron oxide based on their large difference in binding energy. The B-2 species may arise from the deposited BO 2 À because of the hydrolysis of NaBH 4 (also see the kinetic reaction equations below), a result that is in a good agreement with those obtained by Schreifels et al and Okamoto et al [12,14] Based on all these results, a schematic diagram illustrating the nanostructure of the particulate nickel-boron precipitate was constructed, and this is shown by the inset of Figure 5.…”

Section: Resultssupporting

confidence: 63%

“…Previous studies using XPS have found that the binding energy of Ni 2p3 = 2 in this material is in line with that of the bulk nickel ( % 852.5 eV), [12,14,30] implying the elemental state for the metal. However, as regards the boron involved, two forms appear to be present, corresponding to a binding energy of B 1s at 188.2 and 191.7 eV.…”

Section: Resultsmentioning

confidence: 67%

“…[9,12,14,30] However, no appreciable change of the binding energy of Ni 2p has been detected. This suggests that the view of the electron transfer, noted as Ni !…”

Section: Wwwchemeurjorgmentioning

confidence: 81%

“…The remarkable catalytic properties of the material have given rise to extensive studies that so far include reaction kinetics, [7,8] stoichiometric chemistry, [9][10][11] chemical state of the surface, [12][13][14] and the catalytic applications. [15][16][17][18] In addition, studies on the Ni·B system have been widely extended to other similar metal-metalloid materials, which involve transition metals and the elements of B and P to form Fe·B, Co·B, Pd·B, Ni·P, Fe·P, Fe·Ni·B, Ni·Fe·P, Fe·P·B, Ni·W·P, Pt·B, Ni·P·B, or Ni·Co·B.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Exploring the Structural Complexities of Metal–Metalloid Nanoparticles: The Case of Ni⋅B as Catalyst

Geng¹,

Jefferson²,

Johnson³

2009

Chemistry A European J

View full text Add to dashboard Cite

Understanding of the structural complexities of metal-metalloid nanoparticles is at the heart of several proposals for investigating the physical properties and practical applications of these bi-elemental nanomaterials. To date, the most widely studied metal-metalloid is the nickel-boron (Ni.B) system; however, the exact nature of the structure of the material itself has remained unclear. Herein we show our systematic investigations of the material in an attempt to reveal its fascinating nanostructure. The relation between its high catalytic activity and the ultrafine structure is explored, and the work has been further extended to the formation of colloidal Ni.B nanoparticles. The results presented in this work may represent a substantial progress toward a full understanding of the nickel-boron chemistry.

show abstract

Section: Resultssupporting

confidence: 78%

Section: Resultssupporting

confidence: 63%

Section: Resultsmentioning

confidence: 67%

“…[9,12,14,30] However, no appreciable change of the binding energy of Ni 2p has been detected. This suggests that the view of the electron transfer, noted as Ni !…”

Section: Wwwchemeurjorgmentioning

confidence: 81%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Exploring the Structural Complexities of Metal–Metalloid Nanoparticles: The Case of Ni⋅B as Catalyst

Geng¹,

Jefferson²,

Johnson³

2009

Chemistry A European J

View full text Add to dashboard Cite

show abstract

Regeneration of amorphous NiB/SiO2 catalysts deactivated in cyclopentadiene hydrogenation

Wang

Deng

2000

J. Chem. Technol. Biotechnol.

View full text Add to dashboard Cite

An amorphous NiB/SiO 2 catalyst, deactivated in the partial hydrogenation of cyclopentadiene to cyclopentene, was regenerated by an oxidation±reduction method. After regeneration, the activity was recovered and the selectivity almost recovered. The data of BET, H 2 uptake and XPS measurements on the regenerated catalyst are almost the same as the original counterpart. XRD and DSC tests revealed that some crystallization had occurred over the regenerated catalyst, which led to the selectivity decreasing slightly. This regeneration was repeated several times, but the structural and chemical properties were nearly the same as after the ®rst operation.

show abstract

Catalytic properties of Ni-B and Ni-P ultrafine materials

Lee

Chen

2000

J. Chem. Technol. Biotechnol.

View full text Add to dashboard Cite

The ultra®ne Ni±B and Ni±P amorphous alloy catalysts were prepared by the chemical reduction method. The catalysts were characterized with respect to ICP-AES, XRD, nitrogen sorption, DSC, SEM, TEM and XPS. Nitrobenzene hydrogenation was used to compare their hydrogenation abilities. The different metalloids of boron and phosphorus bound to the nickel metal for the Ni±B and Ni±P catalysts result in the distinct different surface area, amorphous structure and hydrogenation activity of the catalysts. Ni±B had a larger surface area than Ni±P. The speci®c activity per surface area of Ni±P was greater than that of Ni±B. The different activities between the Ni±P and Ni±B can be attributed to the difference of the electron density on the nickel metal; boron donates electrons to the nickel metal and phosphorus accepts electrons from the nickel metal. The catalysts were easier to oxidize when they were exposed to air. This would result in the lower activity. However, the activity could be recovered in the reaction process due to the presence of hydrogen in the reaction system.

show abstract

X-Ray photoelectron spectroscopy of nickel boride catalysts: Correlation of surface states with reaction products in the hydrogenation of acrylonitrile

Cited by 206 publications

References 14 publications

Exploring the Structural Complexities of Metal–Metalloid Nanoparticles: The Case of Ni⋅B as Catalyst

Exploring the Structural Complexities of Metal–Metalloid Nanoparticles: The Case of Ni⋅B as Catalyst

Regeneration of amorphous NiB/SiO2 catalysts deactivated in cyclopentadiene hydrogenation

Catalytic properties of Ni-B and Ni-P ultrafine materials

Contact Info

Product

Resources

About