TY - JOUR
T1 - Nanocarbon-Edge-Anchored High-Density Pt Atoms for 3-nitrostyrene Hydrogenation
T2 - Strong Metal-Carbon Interaction
AU - Lou, Yang
AU - Wu, Honglu
AU - Liu, Jingyue
N1 - Funding Information:
The authors acknowledge funding by the National Science Foundation under CHE-1465057 and the use of facilities within the Eyring Materials Center and the John M. Cowley Center for High Resolution Electron Microscopy at Arizona State University .
Funding Information:
The authors acknowledge funding by the National Science Foundation under CHE-1465057 and the use of facilities within the Eyring Materials Center and the John M. Cowley Center for High Resolution Electron Microscopy at Arizona State University. J.L. designed and conceived the experiments, acquired the STEM images and analyzed the experimental data, and reviewed and edited this manuscript. Y.L. designed, synthesized, and tested the catalysts; conducted the spectroscopy experiments; and analyzed the data and drafted the manuscript. H.W. synthesized the hollow nanocarbons. The authors declare no competing interests.
Publisher Copyright:
© 2019 The Author(s)
PY - 2019/3/29
Y1 - 2019/3/29
N2 - Strong metal-support interaction (SMSI)has been widely used to improve catalytic performance and to identify reaction mechanisms. We report that single Pt atoms anchored onto hollow nanocarbon (h-NC)edges possess strong metal-carbon interaction, which significantly modifies the catalytic behavior of the anchored Pt atoms for selective hydrogenation reactions. The strong Pt-C bonding not only stabilizes single Pt atoms but also modifies their electronic structure, tunes their adsorption properties, and enhances activation of reactants. The fabricated Pt1/h-NC single-atom catalysts (SACs)demonstrated excellent activity for hydrogenation of 3-nitrostyrene to 3-vinylaniline with a turnover number >31,000/h, 20 times higher than that of the best catalyst for such selective hydrogenation reactions reported in the literature. The strategy to strongly anchor Pt atoms by edge carbon atoms of h-NCs is general and can be extended to construct strongly anchored metal atoms, via SMSI, onto surfaces of various types of support materials to develop robust SACs.
AB - Strong metal-support interaction (SMSI)has been widely used to improve catalytic performance and to identify reaction mechanisms. We report that single Pt atoms anchored onto hollow nanocarbon (h-NC)edges possess strong metal-carbon interaction, which significantly modifies the catalytic behavior of the anchored Pt atoms for selective hydrogenation reactions. The strong Pt-C bonding not only stabilizes single Pt atoms but also modifies their electronic structure, tunes their adsorption properties, and enhances activation of reactants. The fabricated Pt1/h-NC single-atom catalysts (SACs)demonstrated excellent activity for hydrogenation of 3-nitrostyrene to 3-vinylaniline with a turnover number >31,000/h, 20 times higher than that of the best catalyst for such selective hydrogenation reactions reported in the literature. The strategy to strongly anchor Pt atoms by edge carbon atoms of h-NCs is general and can be extended to construct strongly anchored metal atoms, via SMSI, onto surfaces of various types of support materials to develop robust SACs.
KW - Catalysis
KW - Chemical Reaction Engineering
KW - Nanostructure
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U2 - 10.1016/j.isci.2019.02.016
DO - 10.1016/j.isci.2019.02.016
M3 - Article
AN - SCOPUS:85066235444
SN - 2589-0042
VL - 13
SP - 190
EP - 198
JO - iScience
JF - iScience
ER -