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Phosphorus-doped h-boron nitride as an efficient metal-free catalyst for direct dehydrogenation of ethylbenzene
Lin, Baining1; Xu, Fan1; Mei, Yuxin1; Liu, Yuwei1; Zou, Yingping1; Liang, Zhiwu2; Zhou, Yonghua1; Diao, Jiangyong3; Mao, Yu2; Liu, Hongyang3
Corresponding AuthorZhou, Yonghua(zhouyonghua@csu.edu.cn) ; Diao, Jiangyong(jydiao@imr.ac.cn) ; Mao, Yu(yumao@hnu.edu.cn) ; Liu, Hongyang(liuhy@imr.ac.cn)
2021-06-28
Source PublicationCATALYSIS SCIENCE & TECHNOLOGY
ISSN2044-4753
Pages8
AbstractDirect dehydrogenation (DDH) of ethylbenzene to styrene catalyzed by metal-free materials is one of the most challenging topics in the chemical industry. We demonstrate that phosphorus-doped h-boron nitride (PBN) exhibits outstanding catalytic activity with a styrene production rate of 6.63 mmolST g(-1) h(-1) and a styrene selectivity of 95% even after 100 h in the DDH of ethylbenzene under steam-free conditions. The characterization and DFT calculations indicate that the N2P = O and N3P-OH sites of PBN synergistically catalyze the reaction: the N2P = O sites promote ethylbenzene C-H bond breaking, and the N3P-OH sites significantly lower the energy barrier of hydrogen associative desorption. The characterization of fresh and used catalysts indicates that the coverage of the N3P-OH sites by carbonaceous species is the main reason for the deactivation. This work facilitates the utilization of BN-based materials in the direct dehydrogenation of alkanes under steam-free reaction conditions.
Funding OrganizationNational Natural Science Foundation of China ; National Key R&D Program of China ; Liaoning Revitalization Talents Program ; Guangxi Key Laboratory of Information Materials (Guilin University of Electronic Technology)
DOI10.1039/d1cy00903f
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[21676303] ; National Natural Science Foundation of China[21703261] ; National Natural Science Foundation of China[91845201] ; National Natural Science Foundation of China[21961160722] ; National Natural Science Foundation of China[22072162] ; National Key R&D Program of China[2016YFA0204100] ; Liaoning Revitalization Talents Program[XLYC1907055] ; Guangxi Key Laboratory of Information Materials (Guilin University of Electronic Technology)[191005-K]
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
WOS IDWOS:000674278400001
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/159822
Collection中国科学院金属研究所
Corresponding AuthorZhou, Yonghua; Diao, Jiangyong; Mao, Yu; Liu, Hongyang
Affiliation1.Cent South Univ, Coll Chem & Chem Engn, Changsha 410083, Peoples R China
2.Hunan Univ, Coll Chem & Chem Engn, Changsha 410083, Peoples R China
3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Lin, Baining,Xu, Fan,Mei, Yuxin,et al. Phosphorus-doped h-boron nitride as an efficient metal-free catalyst for direct dehydrogenation of ethylbenzene[J]. CATALYSIS SCIENCE & TECHNOLOGY,2021:8.
APA Lin, Baining.,Xu, Fan.,Mei, Yuxin.,Liu, Yuwei.,Zou, Yingping.,...&Liu, Hongyang.(2021).Phosphorus-doped h-boron nitride as an efficient metal-free catalyst for direct dehydrogenation of ethylbenzene.CATALYSIS SCIENCE & TECHNOLOGY,8.
MLA Lin, Baining,et al."Phosphorus-doped h-boron nitride as an efficient metal-free catalyst for direct dehydrogenation of ethylbenzene".CATALYSIS SCIENCE & TECHNOLOGY (2021):8.
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