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

Ba, Housseinou; Luo, Jingjie; Liu, Yuefeng; Duong‐Viet, Cuong; Tuci, Giulia; Giambastiani, Giuliano; Nhut, Jean‐Mario; Nguyen-Dinh, Lam; Ersen, Ovidiu; Su, Dang Sheng; Pham‐Huu, Cuong

doi:10.1016/j.apcatb.2016.07.014

Cited by 60 publications

(51 citation statements)

References 66 publications

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“…Moreover, it is known from the previous research that individual carbon materials cannot afford high catalytic performance for dehydrogenation of ethylbenzene. Therefore, we should utilize the interaction between the different nanocabon materials to get high catalytic performance in the reaction . Therefore, the ND‐containing hybrid strategy was developed by inserting reduced graphene oxide or carbon nitride to develop outstanding ND‐based catalysts.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, we should utilize the interaction between the different nanocabon materials to get high catalytic performance in the reaction. [35][36][37][38][39] Therefore, the ND-containing hybrid strategy was developed by inserting reduced graphene oxide [7] or carbon nitride [8][9][10] to develop outstanding ND-based catalysts. Recently, we reported a defectenriched N,O-codoped ND/CNT hybrid (N,O-ND/CNT-d) catalyst by loading oxidized ND on the CNT through a two-step process including the hexamethylenetetramine-assisted wet-chemical approach and pyrolysis process.…”

Section: Introductionmentioning

confidence: 99%

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Sulfate Surfactant Assisted Approach to Fabricate Sulphur‐Doped Supported Nanodiamond Catalyst on Carbon Nanotube with Unprecedented Catalysis for Ethylbenzene Dehydrogenation

Zhou

Zhao

2019

ChemCatChem

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Direct dehydrogenation (DDH) of ethylbenzene is an efficient chemical process for styrene production. Nanocarbon materials, as clean and low‐cost catalysts, have drawn more and more attention in this field. In this work, inspired by the promoting effect of support modulation on the catalytic performance of the general supported‐type catalyst, we present a facile sulfate surfactant assisted dispersion with subsequent annealing (SADA) approach for preparing sulphur‐doped supported nanodiamond catalyst on carbon nanotube (ND/CNT‐SDS) with abundant active sites by using sodium dodecyl sulfate (SDS) as both the dispersing agent for promoting the dispersion of catalytically active ND motif and the CNT support and the sulphur source for sulphur doping, yielding an outstanding supported ND catalyst for DDH of ethylbenzene to styrene with 7.7 mmol g−1cat. h−1 of styrene rate and 98.2 % of styrene selectivity. ND/CNT‐SDS catalyst demonstrates 3.0 times higher styrene rate of the pristine ND. Moreover, ND/CNT‐SDS catalyst shows 1.5 times higher styrene rate of the previously reported defect‐enriched N,O‐codoped ND/CNT (N,O‐ND/CNT‐d) with up to 98 % of similar styrene selectivity, ascribed to its more exposed C=O active sites and higher specific surface area originating from the promoted dispersion of both ND and CNT by SDS, as well as the sulphur‐doping. Moreover, this work also presents a novel and efficient method for the designing the other supported nanocarbon catalysts from dispersion‐required catalytically active nanocarbon motif and the nanocarbon carrier.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Sulfate Surfactant Assisted Approach to Fabricate Sulphur‐Doped Supported Nanodiamond Catalyst on Carbon Nanotube with Unprecedented Catalysis for Ethylbenzene Dehydrogenation

Zhou

Zhao

2019

ChemCatChem

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“…[32] In recent years, metal-free nanocarbon catalysts have shown remarkable performance in various reactions, such as photocatalytic hydrogen evolution, direct dehydrogenation of alkanes and Friedel-Crafts reactions. [39][40][41][42] However, the catalytic system is typically carried out at high temperature (600-650°C) with excess stream provided simultaneously to alleviate carbon deposit during the dehydrogenation. [39][40][41][42] However, the catalytic system is typically carried out at high temperature (600-650°C) with excess stream provided simultaneously to alleviate carbon deposit during the dehydrogenation.…”

Section: Introductionmentioning

confidence: 99%

“…[33][34][35][36][37][38] Styrene, an important chemical monomer for the synthesis of polymers like polystyrene, is primarily produced from direct dehydrogenation of ethylbenzene over commercial potassium-promoted iron oxide at the present. [39][40][41][42] However, the catalytic system is typically carried out at high temperature (600-650°C) with excess stream provided simultaneously to alleviate carbon deposit during the dehydrogenation. Although high styrene selectivity and yield are achieved, massive energy and water consumption are still harmful to the environment, thus a clean and economic ethylbenzene dehydrogenation process and efficient catalyst are of great demand for the production of styrene.…”

Section: Introductionmentioning

confidence: 99%

Three‐Dimensional Interconnected Porous Nitrogen‐Doped Carbon Hybrid Foam for Notably Promoted Direct Dehydrogenation of Ethylbenzene to Styrene

Zhao

2019

ChemCatChem

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Owning to the high corrosion-resistance, stable structure, unique surface properties and sustainability, the carbon-base catalysts have attracted increasing interest in heterogeneous catalysis. Herein, we report a facile combining strategy to fabricate a novel three-dimensional (3D) interconnected porous nitrogen-doped carbon hybrid foam featuring with the interconnected nitrogen-doped carbon foam coated by porous nitrogen-doped carbon (NC MS @NC Glu-NH4Cl ) by annealing the freeze-dried NH 4 Cl-glucose containing aqueous solution soaked melamine sponge (MS@Glu/NH 4 Cl). The as-prepared NC MS @NC Glu-NH4Cl hybrid foam shows 1.6 times high steady-state styrene rate (4.77 mmol g À 1 h À 1 ) with 96.4 % of selectivity for direct dehydrogenation of ethylbenzene to styrene as compared to the well-established nanodiamond. This work not only generates an excellent carbon catalyst to replace the established nanodiamond for direct dehydrogenation of ethylbenzene, but also opens up a potential avenue for designing novel carbon materials towards the adsorption and supercapacitor besides acting as a promising catalyst for diverse transformations.[a] Dr.

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“…Among various foam supports, silicon carbides (SiCs) with their high open porosity, relatively large surface areas and medium thermal conductivity have found application as inert supports in the development of catalysts for a number of relevant catalytic transformations [17,18,19,20,21,22,23,24]. Their open cell structure reduces the pressure drop phenomena through the catalyst bed [25,26,27], while gas effluent turbulences originating within the foam axes [28,29] maximize contact between reactants and the catalyst active phase [30,31,32]. …”

Section: Introductionmentioning

confidence: 99%

Nickel Sulfides Decorated SiC Foam for the Low Temperature Conversion of H2S into Elemental Sulfur

et al. 2018

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The selective oxidation of H2S to elemental sulfur was carried out on a NiS2/SiCfoam catalyst under reaction temperatures between 40 and 80 °C using highly H2S enriched effluents (from 0.5 to 1 vol.%). The amphiphilic properties of SiC foam provide an ideal support for the anchoring and growth of a NiS2 active phase. The NiS2/SiC composite was employed for the desulfurization of highly H2S-rich effluents under discontinuous mode with almost complete H2S conversion (nearly 100% for 0.5 and 1 vol.% of H2S) and sulfur selectivity (from 99.6 to 96.0% at 40 and 80 °C, respectively), together with an unprecedented sulfur-storage capacity. Solid sulfur was produced in large aggregates at the outer catalyst surface and relatively high H2S conversion was maintained until sulfur deposits reached 140 wt.% of the starting catalyst weight. Notably, the spent NiS2/SiCfoam catalyst fully recovered its pristine performance (H2S conversion, selectivity and sulfur-storage capacity) upon regeneration at 320 °C under He, and thus, it is destined to become a benchmark desulfurization system for operating in discontinuous mode.

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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

Cited by 60 publications

References 66 publications

Sulfate Surfactant Assisted Approach to Fabricate Sulphur‐Doped Supported Nanodiamond Catalyst on Carbon Nanotube with Unprecedented Catalysis for Ethylbenzene Dehydrogenation

Sulfate Surfactant Assisted Approach to Fabricate Sulphur‐Doped Supported Nanodiamond Catalyst on Carbon Nanotube with Unprecedented Catalysis for Ethylbenzene Dehydrogenation

Three‐Dimensional Interconnected Porous Nitrogen‐Doped Carbon Hybrid Foam for Notably Promoted Direct Dehydrogenation of Ethylbenzene to Styrene

Nickel Sulfides Decorated SiC Foam for the Low Temperature Conversion of H2S into Elemental Sulfur

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