Journal ArticleDOI
Hydrogen spillover effects in the reduction of iron oxide
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In this paper, it was shown that freshly formed metal accelerates the rate of reduction of ferric oxide in the presence of water vapour, and this effect was explained on the basis of the spillover of hydrogen from the metal sites to the oxide phase through "portholes" of water.Abstract:
Freshly formed metal accelerates the rate of reduction of ferric oxide in the presence of water vapour. This effect is explained on the basis of the spillover of hydrogen from the metal sites to the oxide phase through “portholes” of water.read more
Citations
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Structural and catalytic studies of promoted iron oxide catalysts used in the dehydrogenation of ethylbenzene to styrene
TL;DR: In this article, a new and used catalysts were characterised by various physicochemical techniques like scanning electron microscopy, x-ray diffraction and Mossbauer spectroscopy.
References
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Journal ArticleDOI
On the reduction of tungsten trioxide accelerated by platinum and water
TL;DR: In this paper, the reduction of WO 3 by H 2 to a blue form proceeds readily above 400°C and the acceleration by water is ascribed to a marked increase in the rate of diffusion of the reducing species.
Journal ArticleDOI
Adlineation, Portholes and Spillover
TL;DR: In this article, the role of water in the Pt-WO3 system was investigated and it was shown that if the WO3 was mixed with platinum black and also if water was preadsorbed on the mixture prior to admitting hydrogen to the system, the reduction did not take place at all at room temperature.
Journal ArticleDOI
ESR evidence of hydrogen migration on supported metal catalysts
Kenneth M. Sancier,S.H. Inami +1 more
TL;DR: In this paper, it was shown that the resonance at g = 2.10, developed upon heating of noble-metal-supported catalysts in hydrogen, results from the reduction of iron oxide to metallic iron also present on the supported catalyst.