Tricomponent Coassembly Approach To Synthesize Ordered Mesoporous Carbon/Silica Nanocomposites and Their Derivative Mesoporous Silicas with Dual Porosities
Tricomponent Coassembly Approach To Synthesize Ordered Mesoporous Carbon/Silica Nanocomposites and Their Derivative Mesoporous Silicas with Dual Porosities
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三组分共组装法合成有序介孔碳/二氧化硅纳米复合材料及其衍生物双孔隙介孔二氧化硅
DOI：
10.1021/cm403921u
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发表时间：
2014-03
影响因子：
8.6
通讯作者：
Zhao Dongyuan
中科院分区：
文献类型：
--
作者：
Li Yuhui;Wei Jing;Luo Wei;Wang Chun;Li Wei;Feng Shanshan;Yue Qin;Wang Minghong;Elzatahry Ahmed A.;Deng Yonghui;Zhao Dongyuan
以自制的聚氧化乙烯-b-聚苯乙烯嵌段共聚物为模板，通过三组分共组装法成功地合成了高度有序的介孔碳/二氧化硅纳米复合材料和具有三维立方结构的双介孔二氧化硅。介孔二氧化硅具有高的比表面积和均匀的双峰介孔。双峰介孔可以通过简单地改变碳/二氧化硅前体的比例和在N2中的热解温度来调节。金纳米粒子被成功地负载在初级大介孔中用作非均相纳米催化剂，其在苯乙烯的环氧化反应中表现出优异的性能，证明了它们作为催化剂载体的潜力。
Highly ordered mesoporous carbon/silica nanocomposites and dual-mesoporous silicas with a 3D cubic structure were successfully synthesized through a facile tricomponent coassembly approach by using the lab-made diblock copolymer poly(ethylene oxide)-b-polystyrene as a template. The mesoporous silicas exhibit a high surface area and uniform bimodal mesopores. The bimodal mesopores can be tuned by simply changing the ratio of carbon/silica precursors and the pyrolysis temperature in N2. Gold nanoparticles were successfully loaded in the primary large mesopores for use as a heterogeneous nanacatalyst, which exhibits excellent performance in the epoxidation of styrene, demonstrating their potential for catalyst support.
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影响因子：
--
作者：
Xiujian Wang;Timo Langetepe;C. Persau;B. Kang;G. Sheldrick;D. Fenske
通讯作者：
Xiujian Wang;Timo Langetepe;C. Persau;B. Kang;G. Sheldrick;D. Fenske
影响因子：
19
作者：
Kui Yu;B. Smarsly;C. Brinker
通讯作者：
Kui Yu;B. Smarsly;C. Brinker
影响因子：
4.9
作者：
D. Nandan;P. Sreenivasulu;S. Saxena;Nagbhatla Viswanadham
通讯作者：
D. Nandan;P. Sreenivasulu;S. Saxena;Nagbhatla Viswanadham
影响因子：
64.8
作者：
Woodcock, LV
通讯作者：
Woodcock, LV
影响因子：
15
作者：
Kuang, DB;Brezesinski, T;Smarsly, B
通讯作者：
Smarsly, B