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Fernández J, González F, Pesquera C, Blanco C, Renedo MJ. Study of the CO2/Sorbent Interaction in Sorbents Prepared with Mesoporous Supports and Calcium Compounds. Ind Eng Chem Res 2010. [DOI: 10.1021/ie901815u] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Josefa Fernández
- Departamento de Ingeniería Química y Química Inorgánica, ETSIIyT, Universidad de Cantabria, Avenida de los Castros s/n, 39005-Santander, Spain
| | - Fernando González
- Departamento de Ingeniería Química y Química Inorgánica, ETSIIyT, Universidad de Cantabria, Avenida de los Castros s/n, 39005-Santander, Spain
| | - Carmen Pesquera
- Departamento de Ingeniería Química y Química Inorgánica, ETSIIyT, Universidad de Cantabria, Avenida de los Castros s/n, 39005-Santander, Spain
| | - Carmen Blanco
- Departamento de Ingeniería Química y Química Inorgánica, ETSIIyT, Universidad de Cantabria, Avenida de los Castros s/n, 39005-Santander, Spain
| | - M. Josefina Renedo
- Departamento de Ingeniería Química y Química Inorgánica, ETSIIyT, Universidad de Cantabria, Avenida de los Castros s/n, 39005-Santander, Spain
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Jiang YX, Weng WZ, Si D, Sun SG. FTIR Studies of Zeolite Matrix Effects on the Properties of Palladium Clusters Confined in the Supercages of NaX and NaY. J Phys Chem B 2005; 109:7637-42. [PMID: 16851885 DOI: 10.1021/jp0480089] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Palladium clusters have been synthesized by the "ship-in-a-bottle" approach in the supercages of NaX and NaY faujasite zeolites. In comparison with CO adsorbed on a bulk Pd electrode, the same molecule adsorbed on the Pd clusters electrodes evoked an enhanced IR absorption (EIRA). The enhancement factors have been determined to be about 38 and 51 in NaX and NaY, respectively. IR band centers of linear-bonded CO, bridge-bonded CO, and multi-bonded CO in NaX are measured, respectively, 12, 14, and 11 cm(-1) lower than those of the corresponding adsorption modes in NaY. The adsorption of CO and the oxidation of adsorbed CO in NaX matrix are faster than that in NaY matrix. These results suggest that part of the Pd2+ ions in NaX are located in sites III and III' that are near the 12-ring window of the supercage of zeolite, which lead to the formation of small Pd clusters. The present study is of significant importance in exploring the dependence of catalyst properties on structures, as well as in understanding and predicting the locations and properties of metal clusters in zeolites.
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Affiliation(s)
- Yan-Xia Jiang
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemistry, Institute of Physical Chemistry, Xiamen University, Xiamen 361005, China
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Enderle B, Labouriau A, Ott KC, Gates BC. Osmium Carbonyls in Zeolite NaX: Characterization by 129Xe NMR and Extended X-ray Absorption Fine Structure Spectroscopies. J Phys Chem B 2002. [DOI: 10.1021/jp0128224] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bryan Enderle
- Department of Chemical Engineering and Materials Science, University of California, Davis, California 95616, and Chemical Science and Technology Division, Mail Stop J514, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
| | - Andrea Labouriau
- Department of Chemical Engineering and Materials Science, University of California, Davis, California 95616, and Chemical Science and Technology Division, Mail Stop J514, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
| | - Kevin C. Ott
- Department of Chemical Engineering and Materials Science, University of California, Davis, California 95616, and Chemical Science and Technology Division, Mail Stop J514, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
| | - Bruce C. Gates
- Department of Chemical Engineering and Materials Science, University of California, Davis, California 95616, and Chemical Science and Technology Division, Mail Stop J514, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
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Labouriau A, Panjabi G, Enderle B, Pietrass T, Gates BC, Earl WL, Ott KC. 129Xe NMR Spectroscopy of Metal Carbonyl Clusters and Metal Clusters in Zeolite NaY. J Am Chem Soc 1999. [DOI: 10.1021/ja990532j] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Andrea Labouriau
- Contribution from the Chemical Science and Technology Division, Mail Stop J514, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, Department of Chemical Engineering and Materials Science, University of California, Davis, California 95616, and Department of Chemistry, New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801
| | - Ghansham Panjabi
- Contribution from the Chemical Science and Technology Division, Mail Stop J514, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, Department of Chemical Engineering and Materials Science, University of California, Davis, California 95616, and Department of Chemistry, New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801
| | - Bryan Enderle
- Contribution from the Chemical Science and Technology Division, Mail Stop J514, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, Department of Chemical Engineering and Materials Science, University of California, Davis, California 95616, and Department of Chemistry, New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801
| | - Tanja Pietrass
- Contribution from the Chemical Science and Technology Division, Mail Stop J514, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, Department of Chemical Engineering and Materials Science, University of California, Davis, California 95616, and Department of Chemistry, New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801
| | - Bruce C. Gates
- Contribution from the Chemical Science and Technology Division, Mail Stop J514, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, Department of Chemical Engineering and Materials Science, University of California, Davis, California 95616, and Department of Chemistry, New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801
| | - William L. Earl
- Contribution from the Chemical Science and Technology Division, Mail Stop J514, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, Department of Chemical Engineering and Materials Science, University of California, Davis, California 95616, and Department of Chemistry, New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801
| | - Kevin C. Ott
- Contribution from the Chemical Science and Technology Division, Mail Stop J514, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, Department of Chemical Engineering and Materials Science, University of California, Davis, California 95616, and Department of Chemistry, New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801
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