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Solid-state synthesis of ordered mesoporous carbon catalysts via a mechanochemical assembly through coordination cross-linking.


ABSTRACT: Ordered mesoporous carbons (OMCs) have demonstrated great potential in catalysis, and as supercapacitors and adsorbents. Since the introduction of the organic-organic self-assembly approach in 2004/2005 until now, the direct synthesis of OMCs is still limited to the wet processing of phenol-formaldehyde polycondensation, which involves soluble toxic precursors, and acid or alkali catalysts, and requires multiple synthesis steps, thus restricting the widespread application of OMCs. Herein, we report a simple, general, scalable and sustainable solid-state synthesis of OMCs and nickel OMCs with uniform and tunable mesopores (?4-10?nm), large pore volumes (up to 0.96?cm3?g-1) and high-surface areas exceeding 1,000?m2?g-1, based on a mechanochemical assembly between polyphenol-metal complexes and triblock co-polymers. Nickel nanoparticles (?5.40?nm) confined in the cylindrical nanochannels show great thermal stability at 600?°C. Moreover, the nickel OMCs offer exceptional activity in the hydrogenation of bulky molecules (?2?nm).

SUBMITTER: Zhang P 

PROVIDER: S-EPMC5477501 | biostudies-literature | 2017 Apr

REPOSITORIES: biostudies-literature

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Solid-state synthesis of ordered mesoporous carbon catalysts via a mechanochemical assembly through coordination cross-linking.

Zhang Pengfei P   Wang Li L   Yang Shize S   Schott Jennifer A JA   Liu Xiaofei X   Mahurin Shannon M SM   Huang Caili C   Zhang Yu Y   Fulvio Pasquale F PF   Chisholm Matthew F MF   Dai Sheng S  

Nature communications 20170428


Ordered mesoporous carbons (OMCs) have demonstrated great potential in catalysis, and as supercapacitors and adsorbents. Since the introduction of the organic-organic self-assembly approach in 2004/2005 until now, the direct synthesis of OMCs is still limited to the wet processing of phenol-formaldehyde polycondensation, which involves soluble toxic precursors, and acid or alkali catalysts, and requires multiple synthesis steps, thus restricting the widespread application of OMCs. Herein, we rep  ...[more]

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