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Macroscopically shaped monolith of nanodiamonds @ nitrogen-enriched mesoporous carbon decorated SiC as a superior metal-free catalyst for the styrene production
Ba, Housseinou1; Luo, Jingjie1,3; Liu, Yuefeng1,2; Cuong Duong-Viet1; Tuci, Giulia4,5; Giambastiani, Giuliano4,5,6; Jean-Mario Nhut1; Lam Nguyen-Dinh7; Ersen, Ovidiu3; Su, Dang Sheng2; Cuong Pham-Huu1
KeywordMetal-free Catalysis Macroscopically Shaped Monoliths Nanodiamonds Food-grade Components Direct Dehydrogenation Of Ethylbenzene
Source PublicationAPPLIED CATALYSIS B-ENVIRONMENTAL
2017
ISSN0926-3373
DOI10.1016/j.apcatb.2016.07.014
Volume200Pages:343-350
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
WOS Research AreaChemistry ; Engineering
WOS KeywordOXYGEN REDUCTION REACTION ; STEAM-FREE DEHYDROGENATION ; FISCHER-TROPSCH SYNTHESIS ; OXIDE-BASED CATALYST ; SILICON-CARBIDE ; SURFACE-CHEMISTRY ; ETHYLBENZENE DEHYDROGENATION ; FLUORESCENT NANODIAMONDS ; SELECTIVE OXIDATION ; EFFICIENT CATALYST
AbstractNanodiamonds (NDs) are recognized as a class of robust metal-free catalysts for the steam-free, direct dehydrogenation (DDH) of ethylbenzene (EB) to styrene (ST). In spite of that, some main drawbacks, such as their powdery form along with their tendency to form aggregates, limit their full exploitation at the industrial level. In this work, we describe the preparation of macroscopically shaped monoliths consisting of silicon carbide-based foams coated with a nitrogen-rich mesoporous carbon matrix (NMC) as a non-innocent glue for highly dispersed ND fillers. The NMC phase is prepared from cheap and nontoxic food-grade components and it prevents the undesired NDs agglomeration thus maximizing the reagents exposure throughout the catalytic DDH tests. Moreover, the NMC phase represents a key source of surface basicity capable of inhibiting the occurrence of EB cracking side reactions during the catalytic runs. As a result, the ND@NMC/SiC composite shows excellent dehydrogenation performance already at low ND loading if compared with the powdery NDs and/or the SiC-supported NDs of the state-of-the-art. Noteworthy, the ND@NMC/SiC composite presents its best catalytic performance under DDH conditions close to those used in industrial plants (reaction temperture up to 600 degrees C and EB concentrations up to 10 vol.%) with high ST rates (lambda(catal). of 9.9 mmol(ST gcat)(-1) h(-1)), ST selectivity over 96% and long term stability on stream. (C) 2016 Elsevier B.V. All rights reserved.
Language英语
WOS IDWOS:000384775600035
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/169987
Collection中国科学院大连化学物理研究所
Corresponding AuthorLiu, Yuefeng
Affiliation1.Univ Strasbourg UdS, ICPEES, ECPM, UMR 7515,CNRS, 25 Rue Becquerel, F-67087 Strasbourg 02, France
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy DNL, 457 Zhongshan Rd, Dalian 116023, Peoples R China
3.Univ Strasbourg UdS, IPCMS, UMR 7504, CNRS, 23 Rue Loess, F-67034 Strasbourg, France
4.CNR, Inst Chem OrganoMetall Cpds, ICCOM, Via Madonna del Piano, I-50019 Florence, Italy
5.Consorzio INSTM, Via Madonna del Piano, I-50019 Florence, Italy
6.Kazan Fed Univ, Kazan 420008, Russia
7.Univ Da Nang Univ Sci & Technol, 54 Nguyen Luong Bang, Da Nang, Vietnam
Recommended Citation
GB/T 7714
Ba, Housseinou,Luo, Jingjie,Liu, Yuefeng,et al. Macroscopically shaped monolith of nanodiamonds @ nitrogen-enriched mesoporous carbon decorated SiC as a superior metal-free catalyst for the styrene production[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2017,200:343-350.
APA Ba, Housseinou.,Luo, Jingjie.,Liu, Yuefeng.,Cuong Duong-Viet.,Tuci, Giulia.,...&Cuong Pham-Huu.(2017).Macroscopically shaped monolith of nanodiamonds @ nitrogen-enriched mesoporous carbon decorated SiC as a superior metal-free catalyst for the styrene production.APPLIED CATALYSIS B-ENVIRONMENTAL,200,343-350.
MLA Ba, Housseinou,et al."Macroscopically shaped monolith of nanodiamonds @ nitrogen-enriched mesoporous carbon decorated SiC as a superior metal-free catalyst for the styrene production".APPLIED CATALYSIS B-ENVIRONMENTAL 200(2017):343-350.
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