東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Advanced Functional Nanoporous Coati...

Dong, Qiaobei.

Linked to FindBook

Google Book

Amazon

博客來

Advanced Functional Nanoporous Coatings/Membranes: Preparation by Surface or Interfacial Reactions, Characterization, and Applications.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Advanced Functional Nanoporous Coatings/Membranes: Preparation by Surface or Interfacial Reactions, Characterization, and Applications./
Author:	Dong, Qiaobei.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2020,
Description:	126 p.
Notes:	Source: Dissertations Abstracts International, Volume: 82-05, Section: B.
Contained By:	Dissertations Abstracts International82-05B.
Subject:	Chemical engineering. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=27961440
ISBN:	9798684681066

Advanced Functional Nanoporous Coatings/Membranes: Preparation by Surface or Interfacial Reactions, Characterization, and Applications.
Dong, Qiaobei.

Advanced Functional Nanoporous Coatings/Membranes: Preparation by Surface or Interfacial Reactions, Characterization, and Applications. - Ann Arbor : ProQuest Dissertations & Theses, 2020 - 126 p.

Source: Dissertations Abstracts International, Volume: 82-05, Section: B.

Thesis (Ph.D.)--Rensselaer Polytechnic Institute, 2020.

This item must not be sold to any third party vendors.

Advanced functional coatings/membranes attract abundant attention and are broadly applied in various chemical industrial processes. Among various techniques, a unique one is to utilize surface or interfacial reactions to deposit ultrathin, conformal dense organic-inorganic hybrid coatings on various kinds of substrates, which can be converted to porous coatings or membranes with tunable and uniform pores by controlled post-treatments. These porous coatings or membranes were recently studied in our group for gas separation, functional species encapsulation, and organic solvent nanofiltration.We further investigated the new concept developed in our group, "pore misalignment", for modifying the pore mouth size of 5A zeolite and explored the potential for the propane/propylene separation. The porous coating on 5A zeolite was generated and further modified by combining molecular layer deposition (MLD) and atomic layer deposition (ALD). As a result, the pore mouth size of 5A zeolite was adjusted to be between propane and propylene. A propylene/propane ideal adsorption selectivity of 22 and propylene/propane diffusivity ratio of 75 were obtained on MLD/ALD modified 5A zeolite. In the meanwhile, the propylene adsorbed amount kept at a relatively high value. These results demonstrated that the combination of MLD and ALD is a promising way of precisely adjusting pore mouth size of adsorbents for separation of gas molecules with very small size differences.A novel liquid phase interfacial reaction (LPIR) was developed to fabricate a dense organic-inorganic hybrid coating to cover the pore mouth of mesoporous materials. After thermal treatment, the dense hybrid coating was converted to microporous coating, and thus a meso-microporous core-shell hierarchical structure was generated. As an example, homogeneous catalyst, tetrakis(triphenylphosphine) palladium (Pd(PPh3)4) was in-situ synthesized in the mesoporous space and trapped well by the microporous coating shell. The high activity of Pd(PPh3)4 catalyst was maintained, as evidenced by the high conversion of the cyclic Suzuki-Miyaura reaction test. Our results suggest that the LPIR is an efficient strategy to generate hierarchical structure for functional species encapsulation.A vapor-liquid two phases interfacial reaction between the metal and organic precursors was utilized to fabricate dense organic-inorganic hybrid nanofilm on the ceramic-based substrate. After optimizing the reaction conditions, an ultrathin hybrid nanofilm with thickness of as thin as 30 nm can be deposited. Afterward, the dense hybrid nanofilm was also calcinated and converted to porous nanofilm. The pore size and hydrophobicity can be tuned by controlling the calcination conditions and liquid precursor composition. The generated porous nanofilm with rigid pores, served as membrane, was thermally stable (up to at least 100 oC) and showed ultrahigh organic solvent permeance; for example, methanol permeance was as high as 266.7 L∙m-2∙h-1∙bar-1. This new strategy may generate new membranes and widen membrane applications in organic solvent nanofiltration.

ISBN: 9798684681066Subjects--Topical Terms:

560457
Chemical engineering.
Subjects--Index Terms:

Nanoporous coatings

Advanced Functional Nanoporous Coatings/Membranes: Preparation by Surface or Interfacial Reactions, Characterization, and Applications.
LDR:04813nmm a2200529 4500 001 2279550
005 20210823080242.5
008 220723s2020 ||||||||||||||||| ||eng d
020 $a 9798684681066
035 $a (MiAaPQ)AAI27961440
035 $a AAI27961440
040 $a MiAaPQ $c MiAaPQ
100 1 $a Dong, Qiaobei. $3 3558010
245 1 0 $a Advanced Functional Nanoporous Coatings/Membranes: Preparation by Surface or Interfacial Reactions, Characterization, and Applications.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2020
300 $a 126 p.
500 $a Source: Dissertations Abstracts International, Volume: 82-05, Section: B.
500 $a Advisor: Yu, Miao.
502 $a Thesis (Ph.D.)--Rensselaer Polytechnic Institute, 2020.
506 $a This item must not be sold to any third party vendors.
520 $a Advanced functional coatings/membranes attract abundant attention and are broadly applied in various chemical industrial processes. Among various techniques, a unique one is to utilize surface or interfacial reactions to deposit ultrathin, conformal dense organic-inorganic hybrid coatings on various kinds of substrates, which can be converted to porous coatings or membranes with tunable and uniform pores by controlled post-treatments. These porous coatings or membranes were recently studied in our group for gas separation, functional species encapsulation, and organic solvent nanofiltration.We further investigated the new concept developed in our group, "pore misalignment", for modifying the pore mouth size of 5A zeolite and explored the potential for the propane/propylene separation. The porous coating on 5A zeolite was generated and further modified by combining molecular layer deposition (MLD) and atomic layer deposition (ALD). As a result, the pore mouth size of 5A zeolite was adjusted to be between propane and propylene. A propylene/propane ideal adsorption selectivity of 22 and propylene/propane diffusivity ratio of 75 were obtained on MLD/ALD modified 5A zeolite. In the meanwhile, the propylene adsorbed amount kept at a relatively high value. These results demonstrated that the combination of MLD and ALD is a promising way of precisely adjusting pore mouth size of adsorbents for separation of gas molecules with very small size differences.A novel liquid phase interfacial reaction (LPIR) was developed to fabricate a dense organic-inorganic hybrid coating to cover the pore mouth of mesoporous materials. After thermal treatment, the dense hybrid coating was converted to microporous coating, and thus a meso-microporous core-shell hierarchical structure was generated. As an example, homogeneous catalyst, tetrakis(triphenylphosphine) palladium (Pd(PPh3)4) was in-situ synthesized in the mesoporous space and trapped well by the microporous coating shell. The high activity of Pd(PPh3)4 catalyst was maintained, as evidenced by the high conversion of the cyclic Suzuki-Miyaura reaction test. Our results suggest that the LPIR is an efficient strategy to generate hierarchical structure for functional species encapsulation.A vapor-liquid two phases interfacial reaction between the metal and organic precursors was utilized to fabricate dense organic-inorganic hybrid nanofilm on the ceramic-based substrate. After optimizing the reaction conditions, an ultrathin hybrid nanofilm with thickness of as thin as 30 nm can be deposited. Afterward, the dense hybrid nanofilm was also calcinated and converted to porous nanofilm. The pore size and hydrophobicity can be tuned by controlling the calcination conditions and liquid precursor composition. The generated porous nanofilm with rigid pores, served as membrane, was thermally stable (up to at least 100 oC) and showed ultrahigh organic solvent permeance; for example, methanol permeance was as high as 266.7 L∙m-2∙h-1∙bar-1. This new strategy may generate new membranes and widen membrane applications in organic solvent nanofiltration.
590 $a School code: 0185.
650 4 $a Chemical engineering. $3 560457
650 4 $a Materials science. $3 543314
650 4 $a Inorganic chemistry. $3 3173556
650 4 $a Atomic physics. $3 3173870
650 4 $a Organic chemistry. $3 523952
650 4 $a Nanoscience. $3 587832
653 $a Nanoporous coatings
653 $a Interfacial reactions
653 $a Chemical industrial process
653 $a Organic-inorganic hybrid coatings
653 $a Porous membranes
653 $a Organic solvent nanofiltration
653 $a Pore misalignment
653 $a Zeolite
653 $a Atomic layer deposition
653 $a Gas molecules
653 $a Liquid phase interfacial reaction
653 $a In situ
653 $a Hybrid nanofilm
653 $a Membrane generation
653 $a Propane/propylene separation
690 $a 0542
690 $a 0488
690 $a 0565
690 $a 0794
690 $a 0748
690 $a 0490
710 2 $a Rensselaer Polytechnic Institute. $b Chemical Engineering. $3 2102834
773 0 $t Dissertations Abstracts International $g 82-05B.
790 $a 0185
791 $a Ph.D.
792 $a 2020
793 $a English
856 4 0 $u https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=27961440