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

In Situ Spectroscopy of Metal Oxides...

Eom, Chuhyon John.

Linked to FindBook

Google Book

Amazon

博客來

In Situ Spectroscopy of Metal Oxides Reveal Electrocatalyst Structure-Property Relationships.

Record Type:	Electronic resources : Monograph/item
Title/Author:	In Situ Spectroscopy of Metal Oxides Reveal Electrocatalyst Structure-Property Relationships./
Author:	Eom, Chuhyon John.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2020,
Description:	124 p.
Notes:	Source: Dissertations Abstracts International, Volume: 81-12, Section: B.
Contained By:	Dissertations Abstracts International81-12B.
Subject:	Materials science. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=27740385
ISBN:	9798645486938

In Situ Spectroscopy of Metal Oxides Reveal Electrocatalyst Structure-Property Relationships.
Eom, Chuhyon John.

In Situ Spectroscopy of Metal Oxides Reveal Electrocatalyst Structure-Property Relationships. - Ann Arbor : ProQuest Dissertations & Theses, 2020 - 124 p.

Source: Dissertations Abstracts International, Volume: 81-12, Section: B.

Thesis (Ph.D.)--Cornell University, 2020.

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

The structure-property relationship is a foundational concept of materials science and engineering. Tuning the catalytic properties of materials by varying their structural properties like stoichiometry and crystal facets have been integral to advances in electrocatalysis. Traditionally, these studies rely on ex situ, bulk structural characterizations to describe catalytic properties. Catalysis, however, occurs on a dynamic catalytic surface sensitive to its local environment. This dissertation uses in situ spectroscopy of metal oxide electrocatalysts to better capture the intricacies of such catalyst structure-property relationships. La2/3S1/3rMnO3 films are grown using molecular beam epitaxy for a controlled study on the effects of surface and sub-surface structure of metal oxides on the oxygen reduction reaction (ORR) catalysis. Ambient pressure X-ray photoelectron spectroscopy of the films show that the surface and sub-surface structures control the balance between electronic benefits vs. parasitic surface reactions for the ORR. The low atomic number group of an amorphous cobalt oxide catalyst in a phosphate network (CoPi) is studied using home-built stimulated Raman spectroscopy (SRS). In situ SRS reveals previously unreported phosphate motifs in CoPi under oxygen evolution reaction conditions. Isotopic studies show that the phosphate structure is intimately linked to the aqueous environment with implications for the catalyst microstructure and deposition. Extensions of the dissertation on the in situ spectroscopy of a quinone electrochemical systems is discussed in the end.

ISBN: 9798645486938Subjects--Topical Terms:

543314
Materials science.
Subjects--Index Terms:

Electrochemistry

In Situ Spectroscopy of Metal Oxides Reveal Electrocatalyst Structure-Property Relationships.
LDR:02685nmm a2200337 4500 001 2273066
005 20201105110334.5
008 220629s2020 ||||||||||||||||| ||eng d
020 $a 9798645486938
035 $a (MiAaPQ)AAI27740385
035 $a AAI27740385
040 $a MiAaPQ $c MiAaPQ
100 1 $a Eom, Chuhyon John. $3 3550495
245 1 0 $a In Situ Spectroscopy of Metal Oxides Reveal Electrocatalyst Structure-Property Relationships.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2020
300 $a 124 p.
500 $a Source: Dissertations Abstracts International, Volume: 81-12, Section: B.
500 $a Advisor: Suntivich, Jin.
502 $a Thesis (Ph.D.)--Cornell University, 2020.
506 $a This item must not be sold to any third party vendors.
520 $a The structure-property relationship is a foundational concept of materials science and engineering. Tuning the catalytic properties of materials by varying their structural properties like stoichiometry and crystal facets have been integral to advances in electrocatalysis. Traditionally, these studies rely on ex situ, bulk structural characterizations to describe catalytic properties. Catalysis, however, occurs on a dynamic catalytic surface sensitive to its local environment. This dissertation uses in situ spectroscopy of metal oxide electrocatalysts to better capture the intricacies of such catalyst structure-property relationships. La2/3S1/3rMnO3 films are grown using molecular beam epitaxy for a controlled study on the effects of surface and sub-surface structure of metal oxides on the oxygen reduction reaction (ORR) catalysis. Ambient pressure X-ray photoelectron spectroscopy of the films show that the surface and sub-surface structures control the balance between electronic benefits vs. parasitic surface reactions for the ORR. The low atomic number group of an amorphous cobalt oxide catalyst in a phosphate network (CoPi) is studied using home-built stimulated Raman spectroscopy (SRS). In situ SRS reveals previously unreported phosphate motifs in CoPi under oxygen evolution reaction conditions. Isotopic studies show that the phosphate structure is intimately linked to the aqueous environment with implications for the catalyst microstructure and deposition. Extensions of the dissertation on the in situ spectroscopy of a quinone electrochemical systems is discussed in the end.
590 $a School code: 0058.
650 4 $a Materials science. $3 543314
650 4 $a Inorganic chemistry. $3 3173556
653 $a Electrochemistry
653 $a Metal oxide
653 $a Spectroscopy
690 $a 0794
690 $a 0488
710 2 $a Cornell University. $b Materials Science and Engineering. $3 3547480
773 0 $t Dissertations Abstracts International $g 81-12B.
790 $a 0058
791 $a Ph.D.
792 $a 2020
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=27740385