Framework Effects on Activation and Functionalisation of Methane in Zinc-Exchanged Zeolites.
Framework Effects on Activation and Functionalisation of Methane in Zinc-Exchanged Zeolites.
复制标题
锌交换沸石中甲烷活化和功能化的骨架效应。
DOI:
10.1002/cphc.201900973
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Shah MA
中科院分区:
文献类型:
--
作者:
Shah MA
The first selective oxidation of methane to methanol is reported herein for zinc‐exchanged MOR (Zn/MOR). Under identical conditions, Zn/FER and Zn/ZSM‐5 both form zinc formate and methanol. Selective methane activation to form [Zn‐CH3]+species was confirmed by13C MAS NMR spectroscopy for all three frameworks. The percentage of active zinc sites, measured through quantitative NMR spectroscopy studies, varied with the zeolite framework and was found to be ZSM‐5 (5.7 %), MOR (1.2 %) and FER (0.5 %). For Zn/MOR, two signals were observed in the13C MAS NMR spectrum, resulting from two distinct [Zn‐CH3]+species present in the 12 MR and 8 MR side pockets, as supported by additional NMR experiments. The observed products of oxidation of the [Zn‐CH3]+species are shown to depend on the zeolite framework type and the oxidative conditions used. These results lay the foundation for developing structure–function correlations for methane conversion over zinc‐exchanged zeolites.
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DOI:
10.1021/acs.jpcc.9b02487
发表时间:
2019-06
期刊:
The Journal of Physical Chemistry C
影响因子:
--
作者:
Sandra C Albarracín-Suazo;Y. Pagán-Torres;María C. Curet-Arana
通讯作者:
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DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
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通讯作者:
G. Schaub
影响因子:
4.5
作者:
Park, Min Bum;Ahn, Sang Hyun;van Bokhoven, Jeroen A.
通讯作者:
van Bokhoven, Jeroen A.
DOI:
--
发表时间:
2021
期刊:
影响因子:
--
作者:
Yingluo He;Yusuke Imai;Guohui Yang;Yoshiharu Yoneyama and Noritatsu Tsubaki
通讯作者:
Yoshiharu Yoneyama and Noritatsu Tsubaki
DOI:
--
发表时间:
1987
期刊:
影响因子:
--
作者:
P. Chu;B. C. Gerstein;J. Nunan;K. Klier
通讯作者:
K. Klier