Macroscopically shaped monolith of nanodiamonds @ nitrogen-enriched mesoporous carbon decorated SiC as a superior metal-free catalyst for the styrene production

doi:10.1016/j.apcatb.2016.07.014

	Macroscopically shaped monolith of nanodiamonds @ nitrogen-enriched mesoporous carbon decorated SiC as a superior metal-free catalyst for the styrene production
	Ersen, Ovidiu 3; Ba, Housseinou 1; Luo, Jingjie 1,3; Liu, Yuefeng 1,2; Cuong Duong-Viet 1; Jean-Mario Nhut 1; Lam Nguyen-Dinh 7; Su, Dang Sheng 2; Cuong Pham-Huu 1; Tuci, Giulia 4,5
刊名	APPLIED CATALYSIS B-ENVIRONMENTAL
	2017
卷号	200 页码:343-350
关键词	Metal-free Catalysis Macroscopically Shaped Monoliths Nanodiamonds Food-grade Components Direct Dehydrogenation Of Ethylbenzene
ISSN号	0926-3373
DOI	10.1016/j.apcatb.2016.07.014
文献子类	Article
英文摘要	Nanodiamonds (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.
WOS关键词	OXYGEN REDUCTION REACTION ; STEAM-FREE DEHYDROGENATION ; FISCHER-TROPSCH SYNTHESIS ; OXIDE-BASED CATALYST ; SILICON-CARBIDE ; SURFACE-CHEMISTRY ; ETHYLBENZENE DEHYDROGENATION ; FLUORESCENT NANODIAMONDS ; SELECTIVE OXIDATION ; EFFICIENT CATALYST
WOS研究方向	Chemistry ; Engineering
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000384775600035
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/169986]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Liu, Yuefeng
作者单位	1.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
推荐引用方式 GB/T 7714	Ersen, Ovidiu,Ba, Housseinou,Luo, Jingjie,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	Ersen, Ovidiu.,Ba, Housseinou.,Luo, Jingjie.,Liu, Yuefeng.,Cuong Duong-Viet.,...&Giambastiani, Giuliano.(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	Ersen, Ovidiu,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.