ZnO Nanoparticles Encapsulated in Nitrogen-Doped Carbon Material and Silicalite-1 Composites for Efficient Propane Dehydrogenation
Dan Zhao,
Yuming Li,
Shanlei Han,
Yaoyuan Zhang,
Guiyuan Jiang,
Yajun Wang,
Ke Guo,
Zhen Zhao,
Chunming Xu,
Ranjia Li,
Changchun Yu,
Jian Zhang,
Binghui Ge,
Evgenii V. Kondratenko
Affiliations
Dan Zhao
State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Beijing 102249, P. R. China
Yuming Li
State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Beijing 102249, P. R. China
Shanlei Han
State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Beijing 102249, P. R. China
Yaoyuan Zhang
State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Beijing 102249, P. R. China
Guiyuan Jiang
State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Beijing 102249, P. R. China; Corresponding author
Yajun Wang
State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Beijing 102249, P. R. China
Ke Guo
State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Beijing 102249, P. R. China
Zhen Zhao
State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Beijing 102249, P. R. China
Chunming Xu
State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Beijing 102249, P. R. China
Ranjia Li
State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Beijing 102249, P. R. China
Changchun Yu
State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Beijing 102249, P. R. China
Jian Zhang
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
Binghui Ge
Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China; Corresponding author
Evgenii V. Kondratenko
Leibniz-Institut für Katalyse. V. an der Universität Rostock, Albert-Einstein-Strasse 29A, 18059 Rostock, Germany; Corresponding author
Summary: Non-oxidative propane dehydrogenation (PDH) is an attractive reaction from both an industrial and a scientific viewpoint because it allows direct large-scale production of propene and fundamental analysis of C-H activation respectively. The main challenges are related to achieving high activity, selectivity, and on-stream stability of environment-friendly and cost-efficient catalysts without non-noble metals. Here, we describe an approach for the preparation of supported ultrasmall ZnO nanoparticles (2–4 nm, ZnO NPs) for high-temperature applications. The approach consists of encapsulation of NPs into a nitrogen-doped carbon (NC) layer in situ grown from zeolitic imidazolate framework-8 on a Silicalite-1 support. The NC layer was established to control the size of ZnO NPs and to hinder their loss to a large extent at high temperatures. The designed catalysts exhibited high activity, selectivity, and on-stream stability in PDH. Propene selectivity of about 90% at 44.4% propane conversion was achieved at 600°C after nearly 6 h on stream. : Chemistry; Catalysis; Nanoparticles Subject Areas: Chemistry, Catalysis, Nanoparticles
