Sinter-Resistant Platinum Catalyst Supported by Metal-Organic Framework
- Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
- Northwestern Univ., Evanston, IL (United States). Dept. of Chemistry
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Inst. for Integrated Catalysis
- Argonne National Lab. (ANL), Argonne, IL (United States). X-ray Science Division
- Univ. of Minnesota, Minneapolis, MN (United States). Dept. of Chemistry
- Clemson Univ., SC (United States). Chemical and Biomolecular Engineering
- Argonne National Lab. (ANL), Argonne, IL (United States). Chemical Sciences and Engineering Division
- Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division; Northwestern Univ., Evanston, IL (United States). Dept. of Chemistry
Installed on the zirconia nodes of a metal-organic framework (MOF) NU-1000 via targeted vapor-phase synthesis. The catalytic Pt clusters, site-isolated by organic linkers, are shown to exhibit high catalytic activity for ethylene hydrogenation while exhibiting resistance to sintering up to 200 degrees C. In situ IR spectroscopy reveals the presence of both single atoms and few-atom clusters that depend upon synthesis conditions. Operando X-ray absorption spectroscopy and Xray pair distribution analyses reveal unique changes in chemical bonding environment and cluster size stability while on stream. Density functional theory calculations elucidate a favorable reaction pathway for ethylene hydrogenation with the novel catalyst. Lastly, these results provide evidence that atomic layer deposition (ALD) in MOFs is a versatile approach to the rational synthesis of size-selected clusters, including noble metals, on a high surface area support.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States); Energy Frontier Research Centers (EFRC) (United States). Energy Frontier Research Center for Inorganometallic Catalyst Design (ICDC); Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- AC02-06CH11357; AC05-76RL01830; SC0012702
- OSTI ID:
- 1433888
- Alternate ID(s):
- OSTI ID: 1415321; OSTI ID: 1842983
- Report Number(s):
- PNNL-SA-136025; 140426
- Journal Information:
- Angewandte Chemie (International Edition), Vol. 57, Issue 4; ISSN 1433-7851
- Publisher:
- WileyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
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