The influence of surface structure on the catalytic activity of alumina supported copper oxide catalysts. Oxidation of carbon monoxide and methane

Park, Paul Worn; Ledford, Jeffrey S.

doi:10.1016/s0926-3373(98)80008-8

Cited by 117 publications

(67 citation statements)

References 44 publications

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“…The most intense peak in 2h = 35°is typical of copper oxides. This observation was consistent with the literature that reports formation of copper oxide salts when precursors were submitted to calcination at 500°C (Park and Ledford 1998). As for the difratogram of pure silica, there was no presence of peaks, which is a characteristic of amorphous material.…”

Section: Photocatalyst Characterizationsupporting

confidence: 92%

Preparation of CuO/SiO2 and photocatalytic activity by degradation of methylene blue

et al. 2008

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A photocatalyst based on CuO/SiO 2 was prepared, and evaluated for the degradation of methylene blue in aqueous medium. The photocatalyst was obtained by calcination method of copper salt, in the presence of silica. The characterization by XRD, FTIR, and TPR techniques confirmed the formation of CuO as active phase. SEM studies showed CuO deposited on the surface of SiO 2 . By ESI-MS, it was demonstrated that the degradation of methylene blue occurs through successive hydroxylations. Photodegradation assays showed that CuO/SiO 2 was efficient for degradation, and that the material worked better in the presence of UV light.

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Section: Photocatalyst Characterizationsupporting

confidence: 92%

Preparation of CuO/SiO2 and photocatalytic activity by degradation of methylene blue

et al. 2008

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“…A considerable decrease in the BET surface area observed on Cu/Al 2 O 3 from fresh to spent substantiates this possibility. The agglomeration of Cu on pure Al 2 O 3 has already been reported for other reactions like methanol reforming, CO oxidation and methane oxidation [42,43].…”

Section: Steam Reforming Of Dimethyl Ether On Cu/ga X Al 10 à X O 15mentioning

confidence: 53%

Metal oxide catalysts for DME steam reforming: Ga2O3 and Ga2O3–Al2O3 catalysts with and without copper

Mathew

Yamada

Ueda

et al. 2005

Applied Catalysis A: General

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“…Similarly, in the recent past, ceria, Ce (4f 2 5d 0 6s 2 ), dispersed with Pt, Au and Cu, and in the form of mixed oxides such as CeO 2 -ZrO 2 , have been used for the catalytic oxidation of carbon monoxide, combustion of ethyl acetate and volatile organic compounds and in water-gas shift reactions [114][115][116][117][118]. Besides, cerium promoted copper oxide on alumina and Pd have also been used as catalyst in the oxidation of CO and methane [119,120]. Cerium oxide has potential application as a dielectric in silicon-based microelectronic devices [121].…”

Section: Sonochemical Methodsmentioning

confidence: 99%

Sonochemical Degradation of Phenol in the Presence of Inorganic Catalytic Materials

Pankaj

Verma²

2010

Theoretical and Experimental Sonochemistry Involving Inorganic Systems

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Degradation of phenol in its aqueous solutions, using various techniques, including ultrasound, have been examined and discussed to better understand the mechanisms involved therein and the advantages as well as the disadvantages associated with the use of inorganic catalytic materials. IntroductionSonochemical degradation of organic molecules [1], employing cavitational effect is not new. Many simple [2] and complex molecules [3] from modest to very high toxicity levels, polluting the aquatic life and the environment have been successfully reduced to relatively non-toxic or lesser harmful species, if not degraded completely by the ultrasound. Although the degree of degradation and the duration of sonication varied considerably, depending upon the nature of moieties, but the sonochemical degradation undergoes either without the addition of extra chemicals or involves the minimum amounts of non-toxic chemicals such as photocatalyst TiO 2 , Fenton's reagent etc., hence can be termed as a green technology. The purpose of this article is to review the sonochemical degradation of phenol, under different experimental conditions and in the presence of several other active chemicals to understand better the mechanisms involved in all such processes.Phenol is an important chemical, from the point of its industrial and commercial applications, but is of great environmental apprehension due to its toxicity. Its chemical name is hydroxybenzene which is more acidic compared to aliphatic alcohols hence is also known as carbolic acid [4]. At ambient temperature and pressure it is a hygroscopic crystalline solid, which is colourless when pure [5] but

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The influence of surface structure on the catalytic activity of alumina supported copper oxide catalysts. Oxidation of carbon monoxide and methane

Cited by 117 publications

References 44 publications

Preparation of CuO/SiO2 and photocatalytic activity by degradation of methylene blue

Preparation of CuO/SiO2 and photocatalytic activity by degradation of methylene blue

Metal oxide catalysts for DME steam reforming: Ga2O3 and Ga2O3–Al2O3 catalysts with and without copper

Sonochemical Degradation of Phenol in the Presence of Inorganic Catalytic Materials

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