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题名: Direct Insight into Ethane Oxidative Dehydrogenation over Boron Nitrides
作者: Huang, Rui;  Zhang, Bingsen;  Wang, Jia;  Wu, Kuang-Hsu;  Shi, Wen;  Zhang, Yajie;  Liu, Yuefeng;  Zheng, Anmin;  Schloegl, Robert;  Su, Dang Sheng
发表日期: 2017-9-8
摘要: The ultimate objective of chemical conversion is to achieve 100% selectivity from catalysis, and this is also a prodigious challenge for the conversion of light paraffins into olefins, because it involves controlled activation of highly stable aliphatic C-H bonds. Herein, we show that metal-free boron nitride (BN) nanosheets not only enable the oxidative dehydrogenation of ethane to ethylene exclusively at near 10% conversion, but they also deliver a remarkable 60% selectivity at an ethane conversion of 78% and remain stable over 400h at 575 degrees C. Our operando infrared spectroscopy and O-18 isotope tracer study explicitly demonstrates that B-O(H) active sites are formed at the edges of BN through the aid of ethane, and the dehydrogenation circle is completed over these B-O sites by the assistance of O-2.
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Recommended Citation:
Huang, Rui,Zhang, Bingsen,Wang, Jia,et al. Direct Insight Into Ethane Oxidative Dehydrogenation Over Boron Nitrides[J]. Wiley-v C H Verlag Gmbh,2017,9(17):3293-3297.

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