Spectrokinetic investigation of reserve water-gas-shift reaction intermediates over a Pt/CeO2 catalyst

Article Abstract:

The reactivity of the surface species present over a 2%Pt/CeO2 catalyst during the reserve water-gas-shift (RWGS) reaction is investigated by a detailed operando spectrokinetic analysis. The reactivity of the surface species was monitored by DRIFT spectroscopy (DRIFTS) and mass spectrometry (MS) using steady-state isotopic transient kinetic analysis (SSITKA) technique.

Usage, Fourier transform infrared spectroscopy, Platinum catalysts

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Synthesis and characterization of cerium phosphate nanowires in microemulsion reaction media

Article Abstract:

Electron microscopy and dynamic light scattering studies are conducted to explain the production of crystalline nanowires by the synthesis of cerium phosphate [CePo(sub 4)] in microemulsion reaction media. The analysis shows that the crystallization occurs by the strong electrostatic interactions of the negatively charged surfactant with the trivalent Ce(III) ions.

Analysis, Phosphates, Crystallization

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Photoluminescent layered Y(III) and Tb(III) silicates doped with Ce(III)

Article Abstract:

The synthesis and structural characterization of new layered rare-earth silicates K3[[M.1-a][Ce.sub.a]Si3O8(OH)2], M = [Y.sup.3+], [Tb.sup.3+], a << 1, are reported. In mixed Tb/Ce-AV-22, energy transfer occurs from the large [Ce.sup.3+] [4f.sup.1] --> [5d.sup.1] broadband to the sharp [Tb.sup.3+] [4f.sup.8] lines with an efficiency of ca.

Yttrium, Structure, Terbium

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