Nitrogen-doped dual mesoporous carbon for the selective oxidation of ethylbenzene

Abstract

A nanocasting method to fabricate nitrogen-doped dual mesoporous carbon is proposed by the carbonization of nitrile functional ionic liquid (FIL) grafted SBA-15 for the first time. These carbon materials have high nitrogen content (12.8%), large specific surface areas (763 m(2) g(-1)) and uniform rod morphologies, which are derived from FILs grafted on the surface of SBA-15. Furthermore, by adjusting the impregnation amount of ionic liquids on SBA-15, pore structures of these carbon materials can be adjusted from single to dual mesopores. The developed dual mesoporous carbon materials exhibit good catalytic performance in the selective oxidation of ethylbenzene, ascribed to the promoting effects of nitrogen-doping, high surface area and dual mesostructure. It may be concluded that the dual mesostructure has an advantage over a single mesostructure to obtain a fast mass transport rate, resulting in higher acetophenone yield.

Selective electrochemical reduction of carbon dioxide to ethanol via a relay catalytic platform

“…MS was prepared according to work reported previously. 23 Typically, 4.0 g of Pluronic P123 was dissolved in 50 mL of water and stirred for 5 h at room temperature. The mixture was added to 120 mL of 2 M hydrochloric acid solution and stirred for 2 h, and then TEOS (8.5 g) was added.…”

A novel hierarchical porous nitrogen-doped carbon derived from bamboo shoot for high performance supercapacitor

“…Current technologies for porous N-doped carbon fabrication are commonly based on two strategies 21 , 22 : post-treatment of porous carbon with nitrogen source, or in-situ doping by carbonization of nitrogen-rich precursors. These methods either required multi-step process, or the assistance of hard/soft templates, or the chemical activation with a large amount of reagents, or the strict control of synthesis conditions 22 , 23 , which limits its mass production. It is therefore highly desirable to fabricate porous N-doped carbon with a large surface area and porous microstructure for high-performance supercapacitor with renewable materials by a simple, cheap, green and template-free process.…”

Silica‐assisted urea‐formaldehyde‐based carbon microspheres with enhanced supercapacitor performances as electrode

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