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Surfactant directed encapsulation of...

Hu, Pan.

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Surfactant directed encapsulation of metal nanocrystals in metal-organic frameworks.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Surfactant directed encapsulation of metal nanocrystals in metal-organic frameworks./
Author:	Hu, Pan.
Description:	71 p.
Notes:	Source: Masters Abstracts International, Volume: 54-04.
Contained By:	Masters Abstracts International54-04(E).
Subject:	Physical chemistry. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1586476
ISBN:	9781321681871

Surfactant directed encapsulation of metal nanocrystals in metal-organic frameworks.
Hu, Pan.

Surfactant directed encapsulation of metal nanocrystals in metal-organic frameworks. - 71 p.

Source: Masters Abstracts International, Volume: 54-04.

Thesis (M.S.)--Boston College, 2015.

Metal nanocrystals with size and shape control have great potential in heterogeneous catalysis. Controllable encapsulation of well-defined metal nanoparticles into the novel porous materials results in new multifunctional nanomaterials. The core-shell nanostructure can enhance the selectivity, durability, or reactivity of the catalysts and even provide additional functionalities. Metal-organic frameworks (MOFs) are a class of novel crystalline nanoporous materials, with well-defined pore structures and distinctive chemical properties. Using MOFs as the encapsulating porous materials has drawn great interest recently due to their tunable structures and properties. However, it could be challenging to grow another porous material layer on metal surface due to the unfavorable interfacial energy. In this work we develop a new concept of colloidal synthesis to synthesize the metal MOF core-shell nanostructures, in which a layer of self-assembled molecules directed the growth and alignment between two materials. Surfactant cetyltrimethylammonium bromide (CTAB) is designated to facilitate the overgrowth of MOF onto metal surface, and an alignment between the {100} planes of the metal and {110} planes of the MOF can be observed. By utilizing the same concept, a third layer of mesoporous silica could also be coated on the MOF shell with assistance of CTAB. And our method could be a general strategy to fabricate multiple-layer MOF materials.

ISBN: 9781321681871Subjects--Topical Terms:

1981412
Physical chemistry.

Surfactant directed encapsulation of metal nanocrystals in metal-organic frameworks.
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245 1 0 $a Surfactant directed encapsulation of metal nanocrystals in metal-organic frameworks.
300 $a 71 p.
500 $a Source: Masters Abstracts International, Volume: 54-04.
500 $a Adviser: Dunwei Wang.
502 $a Thesis (M.S.)--Boston College, 2015.
520 $a Metal nanocrystals with size and shape control have great potential in heterogeneous catalysis. Controllable encapsulation of well-defined metal nanoparticles into the novel porous materials results in new multifunctional nanomaterials. The core-shell nanostructure can enhance the selectivity, durability, or reactivity of the catalysts and even provide additional functionalities. Metal-organic frameworks (MOFs) are a class of novel crystalline nanoporous materials, with well-defined pore structures and distinctive chemical properties. Using MOFs as the encapsulating porous materials has drawn great interest recently due to their tunable structures and properties. However, it could be challenging to grow another porous material layer on metal surface due to the unfavorable interfacial energy. In this work we develop a new concept of colloidal synthesis to synthesize the metal MOF core-shell nanostructures, in which a layer of self-assembled molecules directed the growth and alignment between two materials. Surfactant cetyltrimethylammonium bromide (CTAB) is designated to facilitate the overgrowth of MOF onto metal surface, and an alignment between the {100} planes of the metal and {110} planes of the MOF can be observed. By utilizing the same concept, a third layer of mesoporous silica could also be coated on the MOF shell with assistance of CTAB. And our method could be a general strategy to fabricate multiple-layer MOF materials.
590 $a School code: 0016.
650 4 $a Physical chemistry. $3 1981412
650 4 $a Materials science. $3 543314
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