Synergic Effect of Active Sites in Zinc-Modified ZSM-5 Zeolites as Revealed by High-Field Solid-State NMR Spectroscopy
Тип публикации: Journal Article
Дата публикации: 2016-11-17
SCImago Q1
Tоп 10% SCImago
БС1
SJR: 5.495
CiteScore: 27.6
Impact factor: 16.9
ISSN: 14337851, 15213773
PubMed ID:
27860033
General Chemistry
Catalysis
Краткое описание
Understanding the nature of active sites in metal-supported catalysts is of great importance towards establishing their structure-property relationships. The outstanding catalytic performance of metal-supported catalysts is frequently ascribed to the synergic effect of different active sites, which is however not well spectroscopically characterized. Herein, we report the direct detection of surface Zn species and 1 H-67 Zn internuclear interaction between Zn2+ ions and Brønsted acid sites on Zn-modified ZSM-5 zeolites by high-field solid-state NMR spectroscopy. The observed promotion of C-H bond activation of methane is rationalized by the enhanced Brønsted acidity generated by synergic effects arising from the spatial proximity/interaction between Zn2+ ions and Brønsted acidic protons. The concentration of synergic active sites is determined by 1 H-67 Zn double-resonance solid-state NMR spectroscopy.
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Qi G. et al. Synergic Effect of Active Sites in Zinc-Modified ZSM-5 Zeolites as Revealed by High-Field Solid-State NMR Spectroscopy // Angewandte Chemie - International Edition. 2016. Vol. 55. No. 51. pp. 15826-15830.
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Qi G., Wang Q., Trebosc J., Lafon O., Wang C., Amoureux J. P., Zhang X. Synergic Effect of Active Sites in Zinc-Modified ZSM-5 Zeolites as Revealed by High-Field Solid-State NMR Spectroscopy // Angewandte Chemie - International Edition. 2016. Vol. 55. No. 51. pp. 15826-15830.
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TY - JOUR
DO - 10.1002/anie.201608322
UR - https://doi.org/10.1002/anie.201608322
TI - Synergic Effect of Active Sites in Zinc-Modified ZSM-5 Zeolites as Revealed by High-Field Solid-State NMR Spectroscopy
T2 - Angewandte Chemie - International Edition
AU - Qi, Guodong
AU - Wang, Qiang
AU - Trebosc, Julien
AU - Lafon, Olivier
AU - Wang, Chao
AU - Amoureux, J. P.
AU - Zhang, Xiaowei
PY - 2016
DA - 2016/11/17
PB - Wiley
SP - 15826-15830
IS - 51
VL - 55
PMID - 27860033
SN - 1433-7851
SN - 1521-3773
ER -
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@article{2016_Qi,
author = {Guodong Qi and Qiang Wang and Julien Trebosc and Olivier Lafon and Chao Wang and J. P. Amoureux and Xiaowei Zhang},
title = {Synergic Effect of Active Sites in Zinc-Modified ZSM-5 Zeolites as Revealed by High-Field Solid-State NMR Spectroscopy},
journal = {Angewandte Chemie - International Edition},
year = {2016},
volume = {55},
publisher = {Wiley},
month = {nov},
url = {https://doi.org/10.1002/anie.201608322},
number = {51},
pages = {15826--15830},
doi = {10.1002/anie.201608322}
}
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MLA
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Qi, Guodong, et al. “Synergic Effect of Active Sites in Zinc-Modified ZSM-5 Zeolites as Revealed by High-Field Solid-State NMR Spectroscopy.” Angewandte Chemie - International Edition, vol. 55, no. 51, Nov. 2016, pp. 15826-15830. https://doi.org/10.1002/anie.201608322.
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