Oxide Foams for the Synthesis of High‐Surface‐Area Vanadium Nitride Catalysts.

Krawiec, Piotr; Cola, P. L. De; Glaeser, Roger; Weitkamp, Jens; Weidenthaler, Claudia; Kaskel, Stefan

doi:10.1002/chin.200617019

Cited by 3 publications

(4 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Porous inorganic foams are very important materials finding use in diverse technological applications, such as filters, catalysts, absorbers or electrode materials. − Only a few synthetic routes for porous inorganic foams derived from polyHIPEs were developed so far. Reactive metal alkoxide precursors were emulsified into the continuous phase of HIPEs, from which hybrid polyHIPEs or pure silica-based polyHIPEs were obtained upon polymerization and subsequent calcination .…”

Section: Introductionmentioning

confidence: 99%

Macroporous ZnO Foams by High Internal Phase Emulsion Technique: Synthesis and Catalytic Activity

Kovačič

Anžlovar

Erjavec

et al. 2014

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Zinc(II) oxide nanoparticles were used for the stabilization of dicyclopentadiene (DCPD)-water-based high internal phase emulsions (HIPEs), which were subsequently cured using ring-opening metathesis polymerization (ROMP). The morphology of the resulting ZnO-pDCPD nanocomposite foams was investigated in correlation to the nanoparticle loading and nanoparticle surface chemistry. While hydrophilic ZnO nanoparticles were found to be unsuitable for stabilizing the HIPE, oleic acid coated, yet hydrophobic ZnO nanoparticles were effective HIPE stabilizers, yielding polymer foams with ZnO nanoparticles located predominately at their surface. These inorganic/organic hybrid foam-materials were subsequently calcined at 550 °C for 15 min to obtain inorganic macroporous ZnO foams with a morphology reminiscent to the original hybrid foam, and a specific surface area of 1.5 m(2) g(-1). Longer calcination time (550 °C, 15 h) resulted in a sea urchin like morphology of the ZnO foams, characterized by higher specific surface area of 5.5 m(2) g(-1). The latter foam type showed an appealing catalytic performance in the catalytic wet air oxidation (CWAO) process for the destruction of bisphenol A.

show abstract

Section: Introductionmentioning

confidence: 99%

Macroporous ZnO Foams by High Internal Phase Emulsion Technique: Synthesis and Catalytic Activity

Kovačič

Anžlovar

Erjavec

et al. 2014

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…The properties of VN can be tailored by modifying the particle size and shape. When particle size of VN is reduced to nanosize, it is useful for technological applications such as magnetic and electronics components, catalysts, superconductor and super-capacitors [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

“…XRD substitution of oxygen in to the lattice[4,5]. The lattice parameter for Fe doped VN, slightly increases up to 5 at.% Fe doping and for further increase of Fe concentration lattice parameter remain constant, i.e.…”

mentioning

confidence: 99%

Magnetic and Mössbauer properties of Fe doped VN nanoparticles

et al. 2008

View full text Add to dashboard Cite

Nanoparticles of iron doped vanadium nitride are synthesized by simultaneous thermal decomposition and nitridation of [V (1−x) Fe x O(NH 2 O) 2 Gly]·H 2 O in NH 3 atmosphere at 973 K for 4 h. Pure VN shows cubic NaCl structure with lattice parameter of a = 4.126 Å. Lattice parameter increases with Fe-doping. Magnetization increases with increase of Fe amount in VN. Coercivity values are in the range 30-80 Oe, which is relatively so small, compared to pure Fe. From Mössbauer study, it is inferred that single resonance line is due to the high diamagnetic contribution and doublet peaks are due to the paramagnetic contribution, which is assigned to the presence of ζ -Fe 2 N phase.

show abstract

“…The metal nitrides formed from group III metals are wide band gap semiconductors and can be used as optoelectronic materials . Furthermore, the applications of metal nitrides as electrodes for supercapacitors or as catalyst − were reported. Especially for the latter applications, the control of the nanostructure of the metal nitride and naturally its composition can have a crucial influence on its overall performance.…”

mentioning

confidence: 99%

Synthesis of Ternary Metal Nitride Nanoparticles Using Mesoporous Carbon Nitride as Reactive Template

et al. 2008

View full text Add to dashboard Cite

Mesoporous graphitic carbon nitride was used as both a nanoreactor and a reactant for the synthesis of ternary metal nitride nanoparticles. By infiltration of a mixture of two metal precursors into mesoporous carbon nitride, the pores act first as a nanoconfinement, generating amorphous mixed oxide nanoparticles. During heating and decomposition, the carbon nitride second acts as reactant or, more precisely, as a nitrogen source, which converts the preformed mixed oxide nanoparticles into the corresponding nitride (reactive templating). Using this approach, ternary metal nitride particles with diameters smaller 10 nm composed of aluminum gallium nitride (Al-Ga-N) and titanium vanadium nitride (Ti-V-N) were synthesized. Due to the confinement effect of the carbon nitride matrix, the composition of the resulting metal nitride can be easily adjusted by changing the concentration of the preceding precursor solution. Thus, ternary metal nitride nanoparticles with continuously adjustable metal composition can be produced.

show abstract

Oxide Foams for the Synthesis of High‐Surface‐Area Vanadium Nitride Catalysts.

Cited by 3 publications

References 1 publication

Macroporous ZnO Foams by High Internal Phase Emulsion Technique: Synthesis and Catalytic Activity

Macroporous ZnO Foams by High Internal Phase Emulsion Technique: Synthesis and Catalytic Activity

Magnetic and Mössbauer properties of Fe doped VN nanoparticles

Synthesis of Ternary Metal Nitride Nanoparticles Using Mesoporous Carbon Nitride as Reactive Template

Contact Info

Product

Resources

About