Journal of Catalysis, volume 218, issue 1, pages 209-219

X-ray absorption and NMR spectroscopic investigations of zinc glutarates prepared from various zinc sources and their catalytic activities in the copolymerization of carbon dioxide and propylene oxide

Publication typeJournal Article
Publication date2003-08-01
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor7.3
ISSN00219517, 10902694
Catalysis
Physical and Theoretical Chemistry
Abstract
The local and microstructures of zinc glutarates synthesized from various zinc sources were investigated by X-ray absorption and solid-state carbon-13 nuclear magnetic resonance spectroscopy, and related to their catalytic activities in the copolymerization of carbon dioxide and propylene oxide. It was found that the local structure around the Zn atoms of the zinc glutarate catalysts consists basically of tetrahedrally coordinated carboxyl oxygen atoms with a ZnO bond distance in the range 1.95–1.96 A, and that the nearest neighbor Zn atom distance is 3.19–3.23 A. These results suggest that the catalysts have a network structure composed of layers interconnected by glutarate ligands. However, the first-shell structures of the catalysts tested are somewhat different, which might originate from differences in the catalysts' overall crystallinity and crystal quality (crystal size and perfection) produced by their different synthetic routes. The surface areas of the catalysts also varied with synthetic route. In the copolymerization, one catalyst with low surface area but the highest crystallinity and best crystal quality shows the highest catalytic activity, which is contrary to the usual expectation of increased catalytic activity with increased catalyst surface area. Therefore, the catalytic activities of zinc glutarates in the copolymerization seem to depend primarily on their morphological structures rather than on their surface areas. The surface areas of zinc glutarates may play a crucial role in improving the catalytic activity in the copolymerization when they first meet the morphological requirements (i.e., high crystallinity and crystal quality).

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Kim J. et al. X-ray absorption and NMR spectroscopic investigations of zinc glutarates prepared from various zinc sources and their catalytic activities in the copolymerization of carbon dioxide and propylene oxide // Journal of Catalysis. 2003. Vol. 218. No. 1. pp. 209-219.
GOST all authors (up to 50) Copy
Kim J., Ree M., Shin T. M., Han O. H., Cho S. B., Hwang Y., Bae J. Y., Lee J. H., Ryoo R., KIM H. X-ray absorption and NMR spectroscopic investigations of zinc glutarates prepared from various zinc sources and their catalytic activities in the copolymerization of carbon dioxide and propylene oxide // Journal of Catalysis. 2003. Vol. 218. No. 1. pp. 209-219.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1016/S0021-9517(03)00082-4
UR - https://doi.org/10.1016/S0021-9517(03)00082-4
TI - X-ray absorption and NMR spectroscopic investigations of zinc glutarates prepared from various zinc sources and their catalytic activities in the copolymerization of carbon dioxide and propylene oxide
T2 - Journal of Catalysis
AU - Hwang, Yong-Taek
AU - Bae, Joong Yeon
AU - Kim, Jongseong
AU - Ree, Moonhor
AU - Shin, Tae Min
AU - Han, Oc Hee
AU - Cho, Sung Bum
AU - Lee, Jae Hong
AU - Ryoo, Ryong
AU - KIM, Hee-Soo
PY - 2003
DA - 2003/08/01 00:00:00
PB - Elsevier
SP - 209-219
IS - 1
VL - 218
SN - 0021-9517
SN - 1090-2694
ER -
BibTex |
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BibTex Copy
@article{2003_Kim,
author = {Yong-Taek Hwang and Joong Yeon Bae and Jongseong Kim and Moonhor Ree and Tae Min Shin and Oc Hee Han and Sung Bum Cho and Jae Hong Lee and Ryong Ryoo and Hee-Soo KIM},
title = {X-ray absorption and NMR spectroscopic investigations of zinc glutarates prepared from various zinc sources and their catalytic activities in the copolymerization of carbon dioxide and propylene oxide},
journal = {Journal of Catalysis},
year = {2003},
volume = {218},
publisher = {Elsevier},
month = {aug},
url = {https://doi.org/10.1016/S0021-9517(03)00082-4},
number = {1},
pages = {209--219},
doi = {10.1016/S0021-9517(03)00082-4}
}
MLA
Cite this
MLA Copy
Kim, Jongseong, et al. “X-ray absorption and NMR spectroscopic investigations of zinc glutarates prepared from various zinc sources and their catalytic activities in the copolymerization of carbon dioxide and propylene oxide.” Journal of Catalysis, vol. 218, no. 1, Aug. 2003, pp. 209-219. https://doi.org/10.1016/S0021-9517(03)00082-4.
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