α-Fe–Al2O3 nanocomposites prepared by sol–gel method

Huang, Yawen; Xue, Desheng; Zhou, Ping; Ma, Yongxiang; Li, F.S.

doi:10.1016/s0921-5093(03)00374-5

Cited by 31 publications

(13 citation statements)

References 10 publications

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“…The spectrum of the Fe/Al 2 O 3 catalyst at 20°C and -260°C is only composed of a sextet, respectively. Comparing the Mössbauer parameters in Table 5 with those reported for Fe catalysts and reference compounds, the sextet is attributed to large a-Fe 2 O 3 particles [29,30]. It is consistent with the XRD results in Fig.…”

Section: Effect Of Supportsupporting

confidence: 88%

Catalytic Systems for the H2S Wet Oxidation at room Temperature

2007

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The catalytic wet oxidation process is the most attractive process for small-scale hydrogen sulfide (H 2 S) removal from natural gas. The catalytic wet oxidation process is anticipated to be cost effective and simple so that it can be used for treating sour gases containing small amounts of H 2 S and can be easily operated even in isolated sites. The development of effective catalyst is the key technology in the wet catalytic oxidation of H 2 S. The scale of operation for the process has to be flexible so its use will not be limited by the flow rates of the gas to be treated. The heterogeneous catalytic wet oxidation of H 2 S has been attempted on activated carbons, but the H 2 S removal capacity still shows the low removal efficiency. The catalytic wet oxidation of H 2 S was studied over Fe/MgO for an effective removal of H 2 S. In order to develop a sulfur removal technology, one has to know what surface species of catalyst are the most active. This article discusses the following systematic studies: (i) the catalytic preparation to disperse Fe metal well on MgO support for enhancing H 2 S removal capacity, (ii) the effect of the catalytic morphology on the activity of Fe/MgO for the H 2 S wet oxidation, (iii) the influence of precursor and support on the activity of Fe/ MgO for catalytic wet oxidation of H 2 S to sulfur.

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Section: Effect Of Supportsupporting

confidence: 88%

Catalytic Systems for the H2S Wet Oxidation at room Temperature

2007

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“…Because of the findings that have so far been made on the problems implicit in the title and the prevailing assumptions [3,[16][17][18][19], the present work concentrates on the following problems, which have in the past hardly been dealt with or which have been approached macroscopically and phenomenologically:…”

Section: Introductionmentioning

confidence: 99%

Fe3+-assisted formation of α-Al2O3, starting from sol–gel precursors

Stößer

Nofz

Feist

et al. 2006

Journal of Solid State Chemistry

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“…The CuFeTi/Al 2 O 3 composite granules of 1-2 mm in diameter were prepared by a combination of the Yoldas sol-gel process and the oil-drop method, as described in the literature [8][9][10][11][12][13]. The starting materials for preparing the composite granules were 2 M boehmite sol (colloidal suspension in aqueous medium was prepared containing small c-AlOOH crystallites), 0.17 M of Cu(NO 3 ) 2 Á 3H 2 O, 0.33 M of Fe(NO 3 ) 3 Á 9H2O and Ti [OCH (CH 3 ) 2 ] 4, the copper and iron wt% was 4:3.…”

Section: Methodsmentioning

confidence: 99%

Synthesis of Cu/Fe/Ti/Al2O3 Composite Granules for SO3 Decomposition in SI Cycle

2008

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The present paper deals with the catalytic decomposition of SO 3 reaction. Cu/Fe/Ti/Al 2 O 3 composite granule catalysts prepared by a combination of Yoldas process and oil-drop method were studied in an attempt to find some suitable catalysts for the decomposition of sulfur trioxide as the oxygen-generating reaction in the thermochemical water splitting process. CuFe/Ti:Al-1:2 shows high SO 3 conversion (69%) at 800°C compared with other catalysts because of the high surface area and the support permitted a better dispersion of Ti.

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α-Fe–Al2O3 nanocomposites prepared by sol–gel method

Cited by 31 publications

References 10 publications

Catalytic Systems for the H2S Wet Oxidation at room Temperature

Catalytic Systems for the H2S Wet Oxidation at room Temperature

Fe3+-assisted formation of α-Al2O3, starting from sol–gel precursors

Synthesis of Cu/Fe/Ti/Al2O3 Composite Granules for SO3 Decomposition in SI Cycle

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