PUKYONG

Hydrogel-functionalized Anodic Aluminium Oxide Membranes for Power Generation from Concentration Gradient

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Alternative Title
기능성 하이드로젤이 도입된 양극 산화 알루미늄 멤브레인의 형성과 농도 구배 발전에 대한 연구
Abstract
An ion exchange membrane can convert a concentration gradient into electrical energy. Electrochemical gradients flow down ionic currents generated by charged ions moving through membrane channels. Nanopores are able to drive ions substantially better than non-structured membranes, so anodic aluminum oxide (AAO) membrane has previously been utilized as a nanofluidic system. In this study, The surface of AAO membrane was functionalized with 3-(aminopropyl)triethoxysilane (APTES) to enrich the charge density. The APTES-modified AAO was then filled with a positively charged poly(3-acrylamidopropyl) trimethylammonium chloride hydrogel. Then, the energy harvested by these composite membranes was studied by applying them to salted solutions
이온 교환막은 농도 구배를 전기 에너지로 변환할 수 있습니다. 전기화학적 구배는 막 채널을 통해 이동하는 하전 이온에 의해 생성된 이온 전류를 따라 흐릅니다. 나노 기공은 구조화되지 않은 멤브레인보다 훨씬 더 나은 이온을 구동할 수 있으므로 양극 산화 알루미늄(AAO) 멤브레인은 이전에 나노 유체 시스템으로 활용되었습니다. 이 연구에서 AAO 멤브레인의 표면은 전하 밀도를 풍부하게 하기 위해 3-(아미노프로필)트리에톡시실란(APTES)으로 기능화되었습니다. APTES로 변형된 AAO를 양전하를 띤 폴리(3-아크릴아미도프로필) 트리메틸암모늄 클로라이드 하이드로겔로 채웠습니다. 그런 다음 이러한 복합 멤브레인에서 수확된 에너지를 염 용액에 적용하여 연구했습니다
Author(s)
Tissasera Iseki
Issued Date
2022
Awarded Date
2022. 2
Type
Dissertation
Publisher
부경대학교
URI
https://repository.pknu.ac.kr:8443/handle/2021.oak/24124
http://pknu.dcollection.net/common/orgView/200000606649
Affiliation
Pukyong National University, Graduate school
Department
대학원 화학융합공학부
Advisor
Seong Il Yoo
Table Of Contents
Chapter I. Introduction 1
I-1. Energy harvesting from concentration gradients 1
I-2. Ion exchange membrane 2
I-2.1. Ion selectivity 5
I-2.2. Nanochannel membranes 8
I-3. AAO membranes 11
I-4. Hydrogel 11
Chapter II. Hydrogel-functionalized Anodic Aluminium Oxide Membranes for Power Generation from Concentration Gradient 13
II-1. Introduction 13
II-2. Experimental Section 15
II-2.1. Material 15
II-2.2. Procedure 16
II-2.2.1. Silane modification of AAO surface 16
II-2.2.2. Ion-exchange capacity and rate of AAO 17
II-2.2.3. Fabrication of APTES-AAO/poly(APTMACl) membrane 17
II-2.3. Measurement 17
II-3. Result and Discussion 20
II-3.1. Characteristic of functionalized AAO 20
II-3.2. Energy conversion behavior 26
II-3.3. Enhanced energy harvesting performance 32
II-3.4. Applications 37
II-4. Conclusion 41
References 42
Acknowledgment 46
Degree
Master
Appears in Collections:
대학원 > 화학융합공학부
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