Sol–gel coating of inorganic nanostructures with resorcinol–formaldehyde resin

Li, Na; Zhang, Qiao; Liu, Jian; Joo, Ji-Bong; Lee, Austin; Gan, Yang; Yin, Yadong

doi:10.1039/c3cc41456f

Cited by 147 publications

(138 citation statements)

References 26 publications

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“…RF resin is one of the most popular carbon precursors and also a good solid support due to its excellent physicochemical properties, including high carbon yield, easy functionalization, hydrophobicity, and thermal stability. More recently, efforts have been made to construct a core-shell or core-multiple shell nanostructure by extending the Stö ber method using RF polymer as precursors [23][24][25][26]. These methods involve initial construction of a core that is subsequently coated with shell materials.…”

Section: Introductionmentioning

confidence: 99%

A facile approach to the fabrication of rattle-type magnetic carbon nanospheres for removal of methylene blue in water

Shao

Zhou

Bao

et al. 2015

Carbon

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Section: Introductionmentioning

confidence: 99%

A facile approach to the fabrication of rattle-type magnetic carbon nanospheres for removal of methylene blue in water

Shao

Zhou

Bao

et al. 2015

Carbon

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“…The cationic CTAB can decorate the spheres with positive charges by forming a bilayer structure, which can easily make the negatively charged RF form a coating on the negatively charged Stöber silica spheres [19], promoting the following self-assembly of CTAB and RF on the silica sphere surfaces to form a polymer shell. Importantly, the CTAB modified polymer shells can be transformed to uniform microporous carbon spheres because of the elimination of CTAB after the carbonization treatment [20].…”

Section: Comment [Hl2]mentioning

confidence: 99%

Hollow carbon spheres with encapsulated germanium as an anode material for lithium ion batteries

Feng

Liu

et al. 2015

J. Mater. Chem. A

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A novel composite consisting of hollow carbon spheres with encapsulated germanium (Ge@HCS) was synthesized by introducing a germanium precursor into the porous-structured hollow carbon spheres. The carbon spheres not only function as a scaffold to hold the germanium and thus maintain the structural integrity of the composite, but also increase the electrical conductivity. The voids and vacancies that are formed after the reduction of germanium dioxide to germanium provide free space for accommodating the volume changes during discharging-charging processes, thus preventing pulverization. The obtained Ge@HCS composite exhibits excellent lithium storage performance, as revealed by electrochemical evaluation. AbstractA novel composite consisting of hollow carbon spheres with encapsulated germanium (Ge@HCS) was synthesized by introducing germanium precursor into the porous-structured hollow carbon spheres. The carbon spheres not only function as a scaffold to hold the germanium and thus maintain the structural integrity of the composite, but also increase the electrical conductivity. The voids and vacancies that are formed after the reduction of germanium dioxide to germanium provide free space for accommodating the volume changes during discharging/charging processes, thus preventing pulverization. The obtained Ge@HCS composite exhibits excellent lithium storage performance, as revealed by electrochemical evaluation.

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“…The residual surface positive charge favors heterogeneous interfacial growth of the RF polymer resin with negative surface charge on the surface of DPSSs-NH 2 @Au NPs due to the charge compatibility. 28,29 The thickness of the RF layer can be tuned from ca. 15 to 45, and then to ca.…”

Section: 27mentioning

confidence: 99%

“…28,29 Then, the MSS with tunable shell thickness and perpendicularly aligned mesopore channels is formed on the surface of the RF layer via an organic-inorganic self-assembly process. [30][31][32] Such dendritic porous yolk@noble metal (Au or Pt) NPs@MSS nanomaterials are nally subjected to calcination in air at high temperatures to remove all organic species.…”

mentioning

confidence: 99%

Dendritic porous yolk@ordered mesoporous shell structured heterogeneous nanocatalysts with enhanced stability

Zhao

Luan

et al. 2017

J. Mater. Chem. A

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One of the major challenges in heterogeneous catalysis is how to suppress the aggregation of thermodynamically unstable noble metal nanoparticles (NPs) and simultaneously maintain their high accessibility. Here we report the fabrication of integrated functional nanostructures consisting of a dendritic porous silica yolk with many small noble metal NPs and a protective mesoporous silica shell (MSS) with perpendicularly aligned pore channels and tunable shell thickness by using a well-controlled interfacial engineering strategy. Three-dimensional (3D) dendrimer-like superstructures with many permeable center-radial large pore channels and a highly accessible internal surface area, named dendritic porous silica spheres (DPSSs), serve as unique yolks not only because of their capability to accommodate high density ultrafine Au or Pt NPs, but also their functionality to act as robust physical barriers to separate and confine the aforementioned loaded NPs, which result in slowing down their aggregation at high temperatures due to Ostwald ripening. These integrated hierarchical structures also ensure good stability under weak basic and acidic conditions. Due to their superior structural properties, the DPSSs@noble metal NPs@MSS yolk-shell structures exhibit excellent catalytic performance in p-nitrophenol reduction, epoxidation reaction and CO oxidation. The favorable stability and high catalytic performance of these yolk-shell structures make the developed design strategy very useful for the fabrication of novel highly active and stable catalysts.

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Sol–gel coating of inorganic nanostructures with resorcinol–formaldehyde resin

Cited by 147 publications

References 26 publications

A facile approach to the fabrication of rattle-type magnetic carbon nanospheres for removal of methylene blue in water

A facile approach to the fabrication of rattle-type magnetic carbon nanospheres for removal of methylene blue in water

Hollow carbon spheres with encapsulated germanium as an anode material for lithium ion batteries

Dendritic porous yolk@ordered mesoporous shell structured heterogeneous nanocatalysts with enhanced stability

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