Physicochemical surface and catalytic properties of CuO–ZnO/Al2O3 system

El-Shobaky, H.G.; Mokhtar, M.; El-Shobaky, G.A.

doi:10.1016/s0926-860x(98)00357-3

Cited by 44 publications

(18 citation statements)

References 14 publications

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“…The peak formation at a particular scanning angle (2 h) showed the presence of a specific component with its oxidation state. The prominent peaks and 2 h values observed in XRD patterns were matched, with patterns of individual components and previously reported data available in the literature [24,26,27]. Thus, the formation of desired catalyst was confirmed.…”

Section: Catalyst Characterizationsupporting

confidence: 87%

Oxidative Phenol Degradation Using Non‐Noble Metal Based Catalysts

Garg

Mishra

Chand

2010

CLEAN Soil Air Water

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Phenol laden waste streams are not considered suitable for conventional biological treatment if phenol is present in amounts higher than 70 mg/L. Catalytic wet air oxidation (CWAO) is one of the potential methods for treating waste streams containing such compounds. The present work investigated the degradation of synthetic wastewater contaminated with phenol (1 g/L) using a CWAO process in the presence of homogenous (CuSO 4 ) and heterogeneous (LaCoO 3 , CuX and CuO-ZnO/CeO 2 ) catalysts. The reaction was conducted at low temperature (908C) and atmospheric pressure, and at moderate operating conditions (T F 1608C and total pressure f0.8 MPa). Among all the tested catalysts, CuSO 4 , LaCoO 3 and CuX were used for WAO reactions performed at atmospheric pressure conditions, whereas the performance of CuO-ZnO/CeO 2 catalyst was tested in above atmospheric pressure studies. At atmospheric conditions, homogeneous CuSO 4 was found to be the best showing ca. 90% phenol degradation and ca. 83% chemical oxygen demand (COD) reduction after a 24 h reaction period. The above atmospheric studies with catalyst showed ca. 82% phenol reduction and 54% COD removal within 3 h reaction time. The effect of pH, catalyst concentration, pressure and temperature are also reported. Finally, the major results are summarized and the recommendations for future work are given.

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Section: Catalyst Characterizationsupporting

confidence: 87%

Oxidative Phenol Degradation Using Non‐Noble Metal Based Catalysts

Garg

Mishra

Chand

2010

CLEAN Soil Air Water

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“…These include wet chemical processes, such as impregnation [11] and co-precipitation in aqueous solution [12][13][14][15][16][17][18][19][20] or other solvents [21][22][23][24][25], as well as mechanical processes, such as milling [26]. Different precipitating agents have been employed for the common precipitation route, e.g.…”

Section: Introductionmentioning

confidence: 99%

Production of hydrogen from methanol over binary Cu/ZnO catalysts

Agrell

Boutonnet

Melián‐Cabrera

et al. 2003

Applied Catalysis A: General

161

145

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“…13 During the last years zinc oxalate was discussed as a precursor of nano-structured, large surface area ZnO particles [14][15][16][17][18] with an enormous applicability in the field of catalysis, opto-electronics and electronics. [19][20][21][22][23][24][25][26][27][28][29][30][31] Even the related nickel(II) oxalate and the decomposition product NiO is in the center of attention since years. [32][33][34][35][36][37] Microand nano-structured nickel oxides in form of spheres, particles or rods are reported.…”

Section: Introductionmentioning

confidence: 99%

Bis(1,2-dithiosquarato)nickelates(II) – Synthesis, Structure, EPR and Thermal Behavior

Strauch

Neumann

Kelling

et al. 2015

ACSi

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Dedicated to the memory of Prof. Dr. Jurij V. Bren~i~. Abstract1,2-Dithiosquaratonickelates are available by direct synthesis from metal salts with dipotassium-1,2-dithiosquarate and the appropriate counter cations. The synthesis and characterization, including mass spectrometry, of a series 1,2-dithios-, with several "onium" cations is reported and the X-ray structures of two diamagnetic complexes, (HexPh 3 P) 2 [Ni(dtsq) 2 ] and (BuPh 3 P) 2 [Ni(dtsq) 2 ] with sterically demanding counter ions are presented. The diamagnetic nickel complexes have been doped as host lattices with traces of Cu(II) to measure EPR for additional structural information. The thermal behavior of this series is studied by thermogravimetry and differential thermal analysis (TG/DTA). The thermolysis in air as well as under nitrogen atmosphere of these complexes results in nickel oxide nano-particles in all cases, which are characterized by X-ray powder diffraction.

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Physicochemical surface and catalytic properties of CuO–ZnO/Al2O3 system

Cited by 44 publications

References 14 publications

Oxidative Phenol Degradation Using Non‐Noble Metal Based Catalysts

Oxidative Phenol Degradation Using Non‐Noble Metal Based Catalysts

Production of hydrogen from methanol over binary Cu/ZnO catalysts

Bis(1,2-dithiosquarato)nickelates(II) – Synthesis, Structure, EPR and Thermal Behavior

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