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Sinter‐Resistant Platinum Catalyst Supported by Metal–Organic Framework
Author(s) -
Kim In Soo,
Li Zhanyong,
Zheng Jian,
PlateroPrats Ana E.,
Mavrandonakis Andreas,
Pellizzeri Steven,
Ferrandon Magali,
Vjunov Aleksei,
Gallington Leighanne C.,
Webber Thomas E.,
Vermeulen Nicolaas A.,
Penn R. Lee,
Getman Rachel B.,
Cramer Christopher J.,
Chapman Karena W.,
Camaioni Donald M.,
Fulton John L.,
Lercher Johannes A.,
Farha Omar K.,
Hupp Joseph T.,
Martinson Alex B. F.
Publication year - 2018
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201708092
Subject(s) - catalysis , platinum , ethylene , cluster (spacecraft) , materials science , sintering , metal , chemical engineering , x ray absorption spectroscopy , heterogeneous catalysis , x ray photoelectron spectroscopy , spectroscopy , atom (system on chip) , atomic layer deposition , absorption spectroscopy , inorganic chemistry , chemistry , nanotechnology , layer (electronics) , organic chemistry , metallurgy , physics , quantum mechanics , computer science , engineering , programming language , embedded system
Single atoms and few‐atom clusters of platinum are uniformly 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 °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 X‐ray 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. 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.