Journal ArticleDOI
IR study of polycrystalline ceria properties in oxidised and reduced states
TLDR
In this article, the surface properties of high surface area ceria samples, either in the reduced or unreduced state, have been investigated using FT-IR spectroscopy.About:
This article is published in Catalysis Today.The article was published on 1999-04-29. It has received 755 citations till now. The article focuses on the topics: Adsorption & Lewis acids and bases.read more
Citations
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High Uptakes of CO2 and CH4 in Mesoporous Metal-Organic Frameworks MIL-100 and MIL-101
Philip L. Llewellyn,Sandrine Bourrelly,Christian Serre,Alexandre Vimont,Marco Daturi,Lomig Hamon,Guy De Weireld,Jong-San Chang,Do-Young Hong,Young Kyu Hwang,Sung Hwa Jhung,Gérard Férey +11 more
TL;DR: Characterization was performed using both manometry and gravimetry in different laboratories for isotherms coupled with microcalorimetry and FTIR to specify the gas-solid interactions in Mesoporous MOFs MIL-100 and MIL-101.
Journal ArticleDOI
Water Gas Shift Catalysis
Chandra Ratnasamy,Jon P. Wagner +1 more
TL;DR: In this paper, a review of the development of water gas shift (WGS) catalysis, especially during the last decade, is reviewed. And a critical review of WGS reaction mechanism is also presented.
Journal ArticleDOI
Probing defect sites on CeO2 nanocrystals with well-defined surface planes by Raman spectroscopy and O2 adsorption.
TL;DR: In this study, ceria nanocrystals with well-defined surface planes have been synthesized and utilized for studying defect sites with both Raman spectroscopy and O(2) adsorption, and the stability and reactivity of these oxygen species are found to be surface-dependent.
Journal ArticleDOI
Cerium oxide nanoparticle: a remarkably versatile rare earth nanomaterial for biological applications
Can Xu,Xiaogang Qu +1 more
TL;DR: The need for systematic biological testing is stressed, however, to resolve possible toxicity concerns of Cerium oxide nanoparticles, which mimic enzyme species that repair the damage caused by free radicals and reduce harmful reactive oxygen levels in the body.
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Amino-based metal-organic frameworks as stable, highly active basic catalysts
TL;DR: In this article, a new MOF based on the MIL-53 topology and non-coordinated amino groups has been synthesized and characterized, and the performance of the IRMOF-3 catalysts demonstrates that the basicity of the aniline-like amino group is enhanced when incorporated inside the MOF structure.
References
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Journal ArticleDOI
Catalytic Properties of Ceria and CeO2-Containing Materials
TL;DR: A survey of the use of cerium oxide and CeO2-containing materials as oxidation and reduction catalysts is presented in this paper, with a special focus on catalytic interaction with small molecules such as hydrogen, carbon monoxide, oxygen, and nitric oxide.
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Infrared spectroscopic identification of species arising from reactive adsorption of carbon oxides on metal oxide surfaces
Guido Busca,Vincenzo Lorenzelli +1 more
TL;DR: The usual assignments of absorption bands due to products of CO and CO2 reactive adsorption on metal oxide surfaces are also critically reexamined in this paper, where carbonate, bicarbonate and formate ions, and of CO2 in metal complexes are reported.
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Infrared spectrometric studies of the surface basicity of metal oxides and zeolites using adsorbed probe molecules
TL;DR: In this paper, it is concluded that no probe can be universally used and that both acid probes can lead on highly basic metal oxides to polydentate (bulk) species which do not result from their adsorption but from their reaction with the given oxide.
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Reduction of CeO2 by hydrogen. Magnetic susceptibility and Fourier-transform infrared, ultraviolet and X-ray photoelectron spectroscopy measurements
Ahmidou Laachir,Vincent Perrichon,Ahmed Badri,Jean Lamotte,Eugene Catherine,Jean Claude Lavalley,Jaâfar El Fallah,Lionel Hilaire,Françlois Le Normand,Eric Quéméré,Guy Noël Sauvion,Olivier Touret +11 more
TL;DR: In this paper, the reduction of CeO2 by hydrogen has been studied from 300-1200 K by several complementary techniques: temperature-programmed reduction (TPR), magnetic susceptibility measurements, Fourier transform infrared (FTIR), UV-VIS diffuse reflectance and X-ray photoelectron (XP) spectroscopy.
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The role of oxygen vacancies on ceria surfaces in the oxidation of carbon monoxide
TL;DR: In this paper, computer simulation techniques are used to model the surfaces of ceria, paying special attention to the effects of surface structures and energetics on catalytic activity, and the results show that the three low energy surfaces are the (111), (110) and (310) with the first of these three being the most stable.