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Design and Investigation of Clean Energy Materials : = From Stable Perovskites to Economical Catalysts for Oxygen Evolution Reaction.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Design and Investigation of Clean Energy Materials :/
Reminder of title:	From Stable Perovskites to Economical Catalysts for Oxygen Evolution Reaction.
Author:	Singh, Kamalpreet.
Description:	1 online resource (220 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 85-01, Section: B.
Contained By:	Dissertations Abstracts International85-01B.
Subject:	Chemistry. -
Online resource:	click for full text (PQDT)
ISBN:	9798379770747

Design and Investigation of Clean Energy Materials : = From Stable Perovskites to Economical Catalysts for Oxygen Evolution Reaction.
Singh, Kamalpreet.

Design and Investigation of Clean Energy Materials :From Stable Perovskites to Economical Catalysts for Oxygen Evolution Reaction. - 1 online resource (220 pages)

Source: Dissertations Abstracts International, Volume: 85-01, Section: B.

Thesis (Ph.D.)--University of Toronto (Canada), 2023.

Includes bibliographical references

As we strive to find sustainable and economical materials for green technologies, developing next-generation materials that are efficient, durable, and affordable is crucial. In this thesis, I present my research on improving phase and bandgap stability in lead halide perovskites and explore nanostructuring and non-precious metal alloys as a route to economical catalysts for oxygen evolution reaction (OER) in an acidic medium.In the first section of the thesis, I discuss my work on perovskites. I start with a density functional theory (DFT) study of a dual-dopant strategy to increase the structural stability of the black phase CsPbI3 (chapter 4). The DFT studies revealed the importance of stereoelectronic effects in dopant-induced phase stabilization and found that the combination of Ca and Mn-doped CsPbI3 is the most effective in stabilization. The synthesized dual-doped thin films retained the black phase for up to 16 days at 40-60% relative humidity, while the non-doped controls degraded on the order of seconds.I also used DFT to evaluate additive-based design principles to improve the bandgap stability of lead halide perovskites and aid in elucidating the structure of the smallest CdSe magic-sized cluster. My work reveals the ability of chelating agents to modulate the quantum-well distribution of CsPbBr3 to achieve bandgap stability. My computational work also highlighted the importance of surface coverage in mitigating the phase segregation that plagues mixed-halide perovskites. The results are supported via experimental validation, producing spectrally stable blue and red PeLEDs.In the second part of the thesis, I discuss my work on economical catalysts for OER in an acidic medium. I demonstrate the use of a metal-organic framework (MOF) structure to bolster the performance of Mn, a non-precious metal catalyst, in this application. The Mn MOF outperformed the classical bulk MnO2 under the same conditions. I also demonstrate the OER capability of a commercially available FeAlCr alloy (Kanthal) as an affordable catalyst in an acidic medium.I conclude by offering my perspective on the future directions of the outlined work, thereby delivering the desired efficient, durable, and affordable next-generation materials.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798379770747Subjects--Topical Terms:

593913
Chemistry.
Subjects--Index Terms:

Clean energyIndex Terms--Genre/Form:

554714
Electronic books.

Design and Investigation of Clean Energy Materials : = From Stable Perovskites to Economical Catalysts for Oxygen Evolution Reaction.
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