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Structure-activity relationships in Ni-Fe (oxy)hydroxide oxygen evolution electrocatalysts.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Structure-activity relationships in Ni-Fe (oxy)hydroxide oxygen evolution electrocatalysts./
Author:	Batchellor, Adam S.
Description:	1 online resource (140 pages)
Notes:	Source: Dissertation Abstracts International, Volume: 78-07(E), Section: B.
Contained By:	Dissertation Abstracts International78-07B(E).
Subject:	Physical chemistry. -
Online resource:	click for full text (PQDT)
ISBN:	9781369610246

Structure-activity relationships in Ni-Fe (oxy)hydroxide oxygen evolution electrocatalysts.
Batchellor, Adam S.

Structure-activity relationships in Ni-Fe (oxy)hydroxide oxygen evolution electrocatalysts. - 1 online resource (140 pages)

Source: Dissertation Abstracts International, Volume: 78-07(E), Section: B.

Thesis (Ph.D.)

Includes bibliographical references

The oxygen evolution reaction (OER) is kinetically slow and hence a significant efficiency loss in electricity-driven water electrolysis. Understanding the relationships between architecture, composition, and activity in high-performing catalyst systems are critical for the development of better catalysts.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9781369610246Subjects--Topical Terms:

1148725
Physical chemistry.
Index Terms--Genre/Form:

554714
Electronic books.

Structure-activity relationships in Ni-Fe (oxy)hydroxide oxygen evolution electrocatalysts.
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245 1 0 $a Structure-activity relationships in Ni-Fe (oxy)hydroxide oxygen evolution electrocatalysts.
264 0 $c 2016
300 $a 1 online resource (140 pages)
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500 $a Source: Dissertation Abstracts International, Volume: 78-07(E), Section: B.
500 $a Advisers: Catherine J. Page; Shannon W. Boettcher.
502 $a Thesis (Ph.D.) $c University of Oregon $d 2016.
504 $a Includes bibliographical references
520 $a The oxygen evolution reaction (OER) is kinetically slow and hence a significant efficiency loss in electricity-driven water electrolysis. Understanding the relationships between architecture, composition, and activity in high-performing catalyst systems are critical for the development of better catalysts.
520 $a This dissertation discusses areas both fundamental and applied that seek to better understand how to accurately measure catalyst activity as well as ways to design higher performing catalysts. Chapter I introduces the work that has been done in the field to date. Chapter II compares various methods of determining the electrochemically active surface area of a film. It further discusses how pulsed and continuous electrodepostition techniques effect film morphology and behavior, and shows that using a simple electrodeposition can create high loading films with architectures that outperform those deposited onto inert substrates. The reversibility of the films, a measure of the films transport efficiency, is introduced and shown to correlate strongly with performance. Chapter III uses high energy x-ray scattering to probe the nanocrystalline domains of the largely amorphous NiFe oxyhydroxide catalysts, and shows that significant similarities in the local structure are not responsible for the change in performance for the films synthesized under different conditions. Bond lengths for oxidized and reduced catalysts are determined, and show no significant phase segregation occurs. Chapter IV seeks to optimize the deposition conditions introduced in Chapter II and to provide a physical representation of how tuning each of the parameters affects film morphology. The deposition current density is shown to be the most important factor affecting film performance at a given loading. Chapter V highlights the different design considerations for films being used in a photoelectrochemical cell, and how in situ techniques can provide information that may otherwise be unobtainable. Chapter VI serves as a summary and provides future directions.
520 $a This dissertation contains previously published coauthored material.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
650 4 $a Physical chemistry. $3 1148725
650 4 $a Chemical engineering. $3 555952
650 4 $a Materials science. $3 557839
655 7 $a Electronic books. $2 local $3 554714
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690 $a 0542
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710 2 $a ProQuest Information and Learning Co. $3 1178819
710 2 $a University of Oregon. $b Department of Chemistry and Biochemistry. $3 1182135
773 0 $t Dissertation Abstracts International $g 78-07B(E).
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10194893 $z click for full text (PQDT)