介孔材料
催化作用
材料科学
镍
化学工程
苯酚
纳米颗粒
超级电容器
热稳定性
聚合物
碳纤维
纳米技术
有机化学
化学
电化学
复合数
工程类
物理化学
复合材料
冶金
电极
作者
Pengfei Zhang,Li Wang,Shize Yang,Jennifer A. Schott,Xiaofei Liu,Shannon M. Mahurin,Caili Huang,Yu Zhang,Pasquale F. Fulvio,Matthew F. Chisholm,Sheng Dai
摘要
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 cm 3 g −1 ) and high-surface areas exceeding 1,000 m 2 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).
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