One-pot synthesis of porous monolith-supported gold nanoparticles as an effective recyclable catalyst
One-pot synthesis of porous monolith-supported gold nanoparticles as an effective recyclable catalyst
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一锅法合成多孔整体负载金纳米颗粒作为有效的可回收催化剂
DOI:
10.1039/c5ta02925b
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发表时间:
2015-06
影响因子:
11.9
通讯作者:
Wan, Decheng
中科院分区:
文献类型:
--
作者:
Ye, Yonglian;Jin, Ming;Wan, Decheng
Gold nanoparticles (AuNPs) are excellent catalysts, but their recycling remains a central concern. Support of AuNPs on a porous monolith is one popular strategy but it usually suffers from multistep and inefficient preparation. Herein, we show a one-pot strategy to recyclable AuNPs supported on a porous monolith. It is known that the polymerization of the oil phase of a high internal phase emulsion (HIPE), stabilized by surfactants, can lead to a macroscopic and porous monolith (polyHIPE). If the surfactant is replaced with a dendritic amphiphile (DA) of PEI@PS (hyperbranched polyethylenimine (PEI) functionalized with polystyrene (PS) and dodecyls), and the water phase is charged with chloroauric acid, then the one-pot fabrication of AuNP-decorated polyHIPE (Au-DA-polyHIPE) is feasible. Alternatively, if Au-DA (AuNP stabilized with PEI@PS) is used instead of the surfactants, then Au-DA-polyHIPE can be similarly obtained. The Au-DA-polyHIPE samples have open-cell and porous structure, and can effectively catalyze the reduction of 4-nitrophenol. The catalytic materials are recyclable without any decrease in activity, at least within 6 cycles, in which the multivalent and multi-ligand PEI should be responsible for the stability.
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影响因子:
11.9
作者:
Wan, Decheng;Du, Jiang;Jin, Ming;Pu, Hongting
通讯作者:
Pu, Hongting
影响因子:
8.6
作者:
PIERANSKI, P
通讯作者:
PIERANSKI, P
影响因子:
3.3
作者:
Kuo, PL;Chen, CC;Jao, MW
通讯作者:
Jao, MW
DOI:
10.1002/chin.201124255
发表时间:
2011-06
期刊:
ChemInform
影响因子:
--
作者:
N. Brun;Simona Ungureanu;H. Deleuze;R. Backov
通讯作者:
N. Brun;Simona Ungureanu;H. Deleuze;R. Backov
影响因子:
3.9
作者:
Zhou, Li;Gao, Chao;Xu, Weijian
通讯作者:
Xu, Weijian