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Design and Synthesis of Porous Materials for Water and Energy Applications /

Record Type:	Electronic resources : Monograph/item
Title/Author:	Design and Synthesis of Porous Materials for Water and Energy Applications /Cassidy Carey.
Author:	Carey, Cassidy,
Description:	1 electronic resource (137 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 86-11, Section: B.
Notes:	Advisors: Matzger, Adam J. Committee members: Kamcev, Jovan; Chen, Zhan; McNeil, Anne J.
Contained By:	Dissertations Abstracts International86-11B.
Subject:	Materials science.
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=32092683
ISBN:	9798314875704

Design and Synthesis of Porous Materials for Water and Energy Applications /
Carey, Cassidy,

Design and Synthesis of Porous Materials for Water and Energy Applications /Cassidy Carey. - 1 electronic resource (137 pages)

Source: Dissertations Abstracts International, Volume: 86-11, Section: B.

Access to clean water and energy is one of the greatest challenges facing humanity. The water and energy sectors are intertwined in a way that if one is under stress the other is also affected. This phenomenon, also known as the water-energy nexus, drives the need to develop more efficient water purification and energy storage materials to meet increasing demands. Recently, new classes of porous materials have emerged due to their exceptionally high surface areas and unique ability to selectively adsorb and store a target chemical species in both the liquid and gas phases. Due to varying chemical compositions and properties, one challenge within the field of porous materials is selecting an appropriate material for an intended application. This thesis seeks to develop structure-property relationships by synthesizing a variety of porous materials and evaluating performance governing properties across applications ranging from water purification, battery technology, and gas storage. Chapter 1 serves as an introduction to this thesis, contextualizing the major challenges in both porous material development and across each application.In Chapter 2, mixed matrix ion exchanges membranes (IEMs) are designed for simultaneous desalination and boron removal through the incorporation of boron selective porous aromatic frameworks (PAF-1-NMDG) into crosslinked methacrylate monomer-based IEM polymer matrices. Over 90% of the PAF-1-NMDG chelation sites were accessible to boron within the IEMs. The incorporation of PAF-1-NMDG substantially impacted IEM ionic conductivity with 13 wt % PAF-1-NMDG incorporation resulting in 20 % and 15 % reductions in ionic conductivity compared to the controls for the AEMs and CEMs, respectively. The effects of PAF-1-NMDG addition on IEM co-ion concentration were vastly different between the AEMs and CEMs with co-ion concentration remaining constant across all loadings for the AEMs but increasing by an order of magnitude at only 5 wt % loading for the CEMs. The influences of PAF-1-NMDG on ion transport properties were attributed to increased ion diffusional path lengths with the IEMs and interfacial interactions between PAF-1-NMDG and the surrounding polymer matrices.In Chapter 3, mixed matrix membranes are designed for non-aqueous redox flow batteries by incorporating a series of functionalized metal-organic frameworks (MOFs) into a linear polymer matrix. The UiO-66-NH2-based mixed matrix membranes (MMMs) showed exceptional selectivity with a redox species permeability on the order of 5 × 10-10 cm2/s. Notably, MOFs dual modified with polymers and sulfate ester groups showed significantly improved dispersion compared to those without polymer modification. Furthermore, the ionic conductivities of the dual-modified MOF-based MMMs were an order of magnitude higher than the UiO-66-NH2 based MMMs. Chapter 4 establishes strategies to suppress MOF interpenetration using lattice interacting additives. MOFs synthesized in the presence of geometrically designed additives exhibited a 20 % increase in gravimetric surface area compared to their interpenetrated counterparts. Furthermore, the optical properties of the synthesized MOFs enabled in-situ monitoring of interpenetration, laying groundwork for mechanistic understandings that are generally absent in the field.Chapter 5 concludes the major findings of this work and discusses future directions of porous material design, with emphasis on forthcoming directions within the field such as MOF morphology engineering. This work highlights new synthetic strategies across each application and establishes structure-property relationships related to PAF-IEM interactions, MOF functionalization and interpenetration. This work will improve porous material design across many applications and result in the development of next-generation water purification and energy storage materials.

English

ISBN: 9798314875704Subjects--Topical Terms:

221779
Materials science.
Subjects--Index Terms:

Porous polymers

Design and Synthesis of Porous Materials for Water and Energy Applications /
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