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  Near 100% ethene selectivity achieved by tailoring dual active sites to isolate dehydrogenation and oxidation

Wang, C., Yang, B., Gu, Q., Han, Y., Tian, M., Su, Y., et al. (2021). Near 100% ethene selectivity achieved by tailoring dual active sites to isolate dehydrogenation and oxidation. Nature Communications, 12(1): 5447, pp. 1-8. doi:10.1038/s41467-021-25782-2.

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Wang, Chaojie1, Author
Yang, Bing1, Author
Gu, Qingqing1, Author
Han, Yujia1, Author
Tian, Ming1, Author
Su, Yang1, Author
Pan, Xiaoli1, Author
Kang, Yu2, Author           
Huang, Chuande1, Author
Liu, Hua1, Author
Liu, Xiaoyan1, Author
Li, Lin1, Author
Wang, Xiaodong1, Author
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1External Organizations, ou_persistent22              
2Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              

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 Abstract: It is important but challenging to prohibit deep oxidation of alkene in oxidative dehydrogenation of light alkane. Here, dual active sites are tailored to isolate dehydrogenation and oxidation thus achieving superior ethene selectivity. Prohibiting deep oxidation remains a challenging task in oxidative dehydrogenation of light alkane since the targeted alkene is more reactive than parent substrate. Here we tailor dual active sites to isolate dehydrogenation and oxidation instead of homogeneously active sites responsible for these two steps leading to consecutive oxidation of alkene. The introduction of HY zeolite with acid sites, three-dimensional pore structure and supercages gives rise to Ni2+ Lewis acid sites (LAS) and NiO nanoclusters confined in framework wherein catalytic dehydrogenation of ethane occurs on Ni2+ LAS resulting in the formation of ethene and hydrogen while NiO nanoclusters with decreased oxygen reactivity are responsible for selective oxidation of hydrogen rather than over-oxidizing ethene. Such tailored strategy achieves near 100% ethene selectivity and constitutes a promising basis for highly selective oxidation catalysis beyond oxidative dehydrogenation of light alkane.

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Language(s): eng - English
 Dates: 2021-09-142021-09-14
 Publication Status: Published in print
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 Table of Contents: -
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Title: Nature Communications
  Abbreviation : Nat. Commun.
Source Genre: Journal
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Publ. Info: London : Nature Publishing Group
Pages: - Volume / Issue: 12 (1) Sequence Number: 5447 Start / End Page: 1 - 8 Identifier: ISSN: 2041-1723
CoNE: https://pure.mpg.de/cone/journals/resource/2041-1723