語系:
繁體中文
English
說明(常見問題)
圖資館首頁
登入
回首頁
切換:
標籤
|
MARC模式
|
ISBD
Combining Metal-Organic Frameworks a...
~
Kreno, Lauren Elizabeth.
Combining Metal-Organic Frameworks and Plasmonic Nanostructures for Sensing Applications.
紀錄類型:
書目-電子資源 : Monograph/item
正題名/作者:
Combining Metal-Organic Frameworks and Plasmonic Nanostructures for Sensing Applications.
作者:
Kreno, Lauren Elizabeth.
面頁冊數:
182 p.
附註:
Source: Dissertation Abstracts International, Volume: 75-01(E), Section: B.
附註:
Advisers: Richard P. Van Duyne; Joseph T. Hupp.
Contained By:
Dissertation Abstracts International75-01B(E).
標題:
Chemistry, Inorganic.
電子資源:
http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3595641
ISBN:
9781303415029
Combining Metal-Organic Frameworks and Plasmonic Nanostructures for Sensing Applications.
Kreno, Lauren Elizabeth.
Combining Metal-Organic Frameworks and Plasmonic Nanostructures for Sensing Applications.
- 182 p.
Source: Dissertation Abstracts International, Volume: 75-01(E), Section: B.
Thesis (Ph.D.)--Northwestern University, 2013.
Sensing devices are crucial for industrial process management, medical diagnostics, food quality control, occupational safety, environmental monitoring, and chemical and biological threat detection. Thanks to decades of research, sensors come in many forms and are made of diverse materials, but improvements are always needed to decrease response time, lower cost, and increase selectivity. This work demonstrates unique approaches to sensing gases and vapors by combining porous materials called metal-organic frameworks (MOFs) with plasmonic nanomaterials. Plasmonic nanoparticles enable very sensitive detection of refractive index changes by measuring wavelength shifts in the particles' UV-vis spectrum, a technique called localized surface plasmon resonance spectroscopy (LSPRS). The initial cursory demonstration of LSPRS-based gas sensing was published near the start of this thesis work, and a deeper study of the gas sensor characteristics is detailed in this dissertation. In practice, the major limitation to this approach is its inherent non-selectivity. To improve this technique, MOFs can concentrate gases at the surface of plasmonic nanoparticles and can do so selectively.
ISBN: 9781303415029Subjects--Topical Terms:
197298
Chemistry, Inorganic.
Combining Metal-Organic Frameworks and Plasmonic Nanostructures for Sensing Applications.
LDR
:03198nmm a2200301 4500
001
419325
005
20140520124016.5
008
140717s2013 ||||||||||||||||| ||eng d
020
$a
9781303415029
035
$a
(MiAaPQ)AAI3595641
035
$a
AAI3595641
040
$a
MiAaPQ
$c
MiAaPQ
100
1
$a
Kreno, Lauren Elizabeth.
$3
660392
245
1 0
$a
Combining Metal-Organic Frameworks and Plasmonic Nanostructures for Sensing Applications.
300
$a
182 p.
500
$a
Source: Dissertation Abstracts International, Volume: 75-01(E), Section: B.
500
$a
Advisers: Richard P. Van Duyne; Joseph T. Hupp.
502
$a
Thesis (Ph.D.)--Northwestern University, 2013.
520
$a
Sensing devices are crucial for industrial process management, medical diagnostics, food quality control, occupational safety, environmental monitoring, and chemical and biological threat detection. Thanks to decades of research, sensors come in many forms and are made of diverse materials, but improvements are always needed to decrease response time, lower cost, and increase selectivity. This work demonstrates unique approaches to sensing gases and vapors by combining porous materials called metal-organic frameworks (MOFs) with plasmonic nanomaterials. Plasmonic nanoparticles enable very sensitive detection of refractive index changes by measuring wavelength shifts in the particles' UV-vis spectrum, a technique called localized surface plasmon resonance spectroscopy (LSPRS). The initial cursory demonstration of LSPRS-based gas sensing was published near the start of this thesis work, and a deeper study of the gas sensor characteristics is detailed in this dissertation. In practice, the major limitation to this approach is its inherent non-selectivity. To improve this technique, MOFs can concentrate gases at the surface of plasmonic nanoparticles and can do so selectively.
520
$a
This is first shown with the iconic MOF "HKUST-1" which concentrates CO2 to amplify the plasmonic sensor response 14x. Subsequently, multi-layered MOFs are explored for detecting CO2 while excluding water. Water is an omnipresent interferant that often impedes the absorption of more interesting guests. The approach of creating multilayered structures of hydrophobic/hydrophilic MOFs is also extended to bulk core/shell materials.
520
$a
Finally, surface-enhanced Raman spectroscopy (SERS) is probed as a means of achieving molecular identification using MOFs. Through coating a MOF film on a SERS-active surface, it is possible to adsorb vapors that are normally difficult to detect by SERS because they have no affinity for the nanoparticle surface. Unexpectedly, adsorption of these vapors occurs throughout the thickness of the film, despite that the molecules are too large to infiltrate the MOF micropores. Observation of this unusual behavior that is not micropore-dominated has significant implications for future developments of MOF films in devices.
590
$a
School code: 0163.
650
4
$a
Chemistry, Inorganic.
$3
197298
650
4
$a
Chemistry, Analytical.
$3
224793
690
$a
0488
690
$a
0486
710
2
$a
Northwestern University.
$b
Chemistry.
$3
660217
773
0
$t
Dissertation Abstracts International
$g
75-01B(E).
790
$a
0163
791
$a
Ph.D.
792
$a
2013
793
$a
English
856
4 0
$u
http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3595641
筆 0 讀者評論
多媒體
多媒體檔案
http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3595641
評論
新增評論
分享你的心得
Export
取書館別
處理中
...
變更密碼
登入