Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 138, Issue 38, Pages 12586-12595Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.6b07355
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Funding
- State Key 973 Program of PRC [2013CB934104]
- NSF of China [51372041, 51422202, 21673048, 51402049, 51432004, 21210004, U1463206]
- Shanghai Committee of Science and Technology, China [14JC1400700, 14ZR1400600]
- Shu Guang Project [13SG02]
- National Youth Top-notch Talent Support Program of China
- Program of Introducing Talents of Discipline to Universities [111-2-04]
- Fundamental Research Funds for the Central Universities [2232015D3-06]
- State Key Laboratory of ASIC System [2015KF002]
- Qatar University [QUUG-CAS-DMST-15\16-18]
- Deanship of Scientific Research at King Saud University [PRG-1437-32]
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Nanostructured carbon materials have received considerable attention due to their special physicochemical properties. Herein, ordered mesoporous carbons (OMCs) with two-dimension (2D) hexagonal mesostincture and unique-buckled large mesopores have successfully been synthesized Via a micelle fusion aggregation assembly method by using poly(ethylene oxide)-block-polystyrene OBO-b-PS) diblock copolymers as a template and resorcinol-based phenolic resin, as a:carbon precursor. The obtained ordered mesoporous carbons possess unique fiber-like morphology, specific surface area of 571-880 m(2)/g, pore volume of 0.54 cm(3)/g and large mesopores (up to 36.3 nm) and high density of active sites (i.e., carboxylic groups) of 0.188/nm(2). Gas sensor based on the ordered mesoporous carbons exhibits an excellent performance in sensing NH3 at a low temperature with fast response (<2 min), ultralow limit of detection (<1 ppm), and good selectivity, due to the large pore sizes, high surface area and rich active sites in the carbon pore walls.
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