Regioselective Generation of Single‐Site Iridium Atoms and Their Evolution into Stabilized Subnanometric Iridium Clusters in MWW Zeolite
Abstract
Abstract Preparation of supported metal catalysts with uniform particle size and coordination environment is a challenging and important topic in materials chemistry and catalysis. In this work, we report the regioselective generation of single‐site Ir atoms and their evolution into stabilized subnanometric Ir clusters in MWW zeolite, which are located at the 10MR window connecting the two neighboring 12MR supercages. The size of the subnanometric Ir clusters can be controlled by the post‐synthesis treatments and maintain below 1 nm even after being reduced at 650 °C, which cannot be readily achieved with samples prepared by conventional impregnation methods. The high structure sensitivity, size‐dependence, of catalytic performance in the alkane hydrogenolysis reaction of Ir clusters in the subnanometric regime is evidenced.
- Authors:
-
[1]
- Instituto de Tecnología Química Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas Av. de los Naranjos s/n 46022 Valencia Spain
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica Facultad de Ciencias Universidad de Cádiz Cádiz Spain
- CLS@APS sector 20 Advanced Photon Source Argonne National Laboratory 9700 S. Cass Avenue Argonne IL 60439 USA, Canadian Light Source Inc. 44 Innovation Boulevard Saskatoon Saskatchewan S7N 2V3 Canada
- Publication Date:
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1656678
- Resource Type:
- Publisher's Accepted Manuscript
- Journal Name:
- Angewandte Chemie
- Additional Journal Information:
- Journal Name: Angewandte Chemie Journal Volume: 132 Journal Issue: 36; Journal ID: ISSN 0044-8249
- Publisher:
- Wiley Blackwell (John Wiley & Sons)
- Country of Publication:
- Germany
- Language:
- English
Citation Formats
Liu, Lichen, Lopez‐Haro, Miguel, Meira, Debora M., Concepcion, Patricia, Calvino, Jose J., and Corma, Avelino. Regioselective Generation of Single‐Site Iridium Atoms and Their Evolution into Stabilized Subnanometric Iridium Clusters in MWW Zeolite. Germany: N. p., 2020.
Web. doi:10.1002/ange.202005621.
Liu, Lichen, Lopez‐Haro, Miguel, Meira, Debora M., Concepcion, Patricia, Calvino, Jose J., & Corma, Avelino. Regioselective Generation of Single‐Site Iridium Atoms and Their Evolution into Stabilized Subnanometric Iridium Clusters in MWW Zeolite. Germany. https://doi.org/10.1002/ange.202005621
Liu, Lichen, Lopez‐Haro, Miguel, Meira, Debora M., Concepcion, Patricia, Calvino, Jose J., and Corma, Avelino. Thu .
"Regioselective Generation of Single‐Site Iridium Atoms and Their Evolution into Stabilized Subnanometric Iridium Clusters in MWW Zeolite". Germany. https://doi.org/10.1002/ange.202005621.
@article{osti_1656678,
title = {Regioselective Generation of Single‐Site Iridium Atoms and Their Evolution into Stabilized Subnanometric Iridium Clusters in MWW Zeolite},
author = {Liu, Lichen and Lopez‐Haro, Miguel and Meira, Debora M. and Concepcion, Patricia and Calvino, Jose J. and Corma, Avelino},
abstractNote = {Abstract Preparation of supported metal catalysts with uniform particle size and coordination environment is a challenging and important topic in materials chemistry and catalysis. In this work, we report the regioselective generation of single‐site Ir atoms and their evolution into stabilized subnanometric Ir clusters in MWW zeolite, which are located at the 10MR window connecting the two neighboring 12MR supercages. The size of the subnanometric Ir clusters can be controlled by the post‐synthesis treatments and maintain below 1 nm even after being reduced at 650 °C, which cannot be readily achieved with samples prepared by conventional impregnation methods. The high structure sensitivity, size‐dependence, of catalytic performance in the alkane hydrogenolysis reaction of Ir clusters in the subnanometric regime is evidenced.},
doi = {10.1002/ange.202005621},
journal = {Angewandte Chemie},
number = 36,
volume = 132,
place = {Germany},
year = {Thu Aug 06 00:00:00 EDT 2020},
month = {Thu Aug 06 00:00:00 EDT 2020}
}
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