Subsurface nickel boosts the low-temperature performance of a boron oxide overlayer in propane oxidative dehydrogenation
|Corresponding Author||Wen，Xiaodong; Ma，Ding; Yao，Siyu|
|Joint first author||Gao，Xiaofeng; Zhu，Ling; Yang，Feng|
Oxidative dehydrogenation of propane is a promising technology for the preparation of propene. Boron-based nonmetal catalysts exhibit remarkable selectivity toward propene and limit the generation of CO byproducts due to unique radical-mediated C–H activation. However, due to the high barrier of O-H bond cleavage in the presence of O, the radical initialization of the B-based materials requires a high temperature to proceed, which decreases the thermodynamic advantages of the oxidative dehydrogenation reaction. Here, we report that the boron oxide overlayer formed in situ over metallic Ni nanoparticles exhibits extraordinarily low-temperature activity and selectivity for the ODHP reaction. With the assistance of subsurface Ni, the surface specific activity of the BO overlayer reaches 93 times higher than that of bare boron nitride. A mechanistic study reveals that the strong affinity of the subsurface Ni to the oxygen atoms reduces the barrier of radical initiation and thereby balances the rates of the BO-H cleavage and the regeneration of boron hydroxyl groups, accounting for the excellent low-temperature performance of Ni@BO/BN catalysts.
NI Journal Papers
Cited Times [WOS]:0
|Document Type||Journal Article|
|Department||Department of Chemistry|
1.Key Laboratory of Biomass Chemical Engineering of Ministry of Education,College of Chemical and Biological Engineering,Zhejiang University,Hangzhou,310027,China
2.Beijing National Laboratory for Molecular Sciences,College of Chemistry and Molecular Engineering and College of Engineering,Peking University,Beijing,100871,China
3.State Key Laboratory of Coal Conversion,Institute of Coal Chemistry,Chinese Academy of Sciences,Taiyuan,Post Office Box 165, Shanxi,030001,China
4.Department of Chemistry,Guangdong Provincial Key Laboratory of Catalysis,Southern University of Science and Technology,Shenzhen,518055,China
5.Institute of Industrial Catalysis,State Key Laboratory of Green Chemistry Synthesis Technology,College of Chemical Engineering,Zhejiang University of Technology,Hangzhou,Zhejiang,310014,China
Gao，Xiaofeng,Zhu，Ling,Yang，Feng,et al. Subsurface nickel boosts the low-temperature performance of a boron oxide overlayer in propane oxidative dehydrogenation[J]. Nature Communications,2023,14(1):1478.
Gao，Xiaofeng.,Zhu，Ling.,Yang，Feng.,Zhang，Lei.,Xu，Wenhao.,...&Yao，Siyu.(2023).Subsurface nickel boosts the low-temperature performance of a boron oxide overlayer in propane oxidative dehydrogenation.Nature Communications,14(1),1478.
Gao，Xiaofeng,et al."Subsurface nickel boosts the low-temperature performance of a boron oxide overlayer in propane oxidative dehydrogenation".Nature Communications 14.1(2023):1478.
|Files in This Item:||There are no files associated with this item.|
|Recommend this item|
|Export to Endnote|
|Export to Excel|
|Export to Csv|
|Similar articles in Google Scholar|
|Similar articles in Baidu Scholar|
|Similar articles in Bing Scholar|
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.