서브메뉴
검색
Engineering Metal Oxide-Based Anode Catalysts For Water Electrolysis
Engineering Metal Oxide-Based Anode Catalysts For Water Electrolysis
Detailed Information
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202104740
- ISBN
- 9798290651699
- DDC
- 540
- 저자명
- Baek, Jihyun.
- 서명/저자
- Engineering Metal Oxide-Based Anode Catalysts For Water Electrolysis
- 발행사항
- [Sl] : Stanford University, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 188 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-01, Section: B.
- 주기사항
- Advisor: Zheng, Xiaolin.
- 학위논문주기
- Thesis (Ph.D.)--Stanford University, 2024.
- 초록/해제
- 요약Water electrolysis stands as a cornerstone technology for the sustainable production of green hydrogen, a pivotal energy carrier in the global shift towards a low-carbon economy. The efficiency and economic viability of water electrolysis are heavily influenced by the oxygen evolution reaction (OER), a process marked by slow kinetics and substantial overpotential, which impedes overall system efficiency. To address these challenges, this thesis adopts a multidirectional approach to engineer innovative metal oxide-based anode catalysts that can effectively catalyze OER with reduced energy demands and improved durability. The research begins by addressing the limitations of traditional noble metal anodes, such as iridium and ruthenium, which, despite their high catalytic activities, are hindered by issues of cost, scarcity, and durability under operational conditions. This thesis explores the synthesis and application of high-entropy oxides (HEOs) as alternative anode materials. These oxides benefit from a diverse and tunable composition that can be precisely engineered to optimize interaction with OER intermediates, thereby enhancing catalytic activity and stability. The unique properties of HEOs, particularly their configurational entropy, are studied, both theoretically and experimentally, to understand their influence on catalytic performance, potentially leading to significant advancements in electrolysis efficiency. Furthermore, the research extends to exploring alternative anodic reactions that yield valuable chemical products such as hydrogen peroxide (H2O2) instead of oxygen, offering a greener and more manageable approach with reduced operational risks. The production of H2O2involves a two-electron transfer process, which, although requiring higher potentials than the OER, opens avenues for the selective catalysis using perovskite oxides. These materials are screened theoretically by introducing three different stability criteria and, particularly, LaAlO3is investigated for its activity, selectivity, and stability among the library of 2000 perovskite oxides. Lastly, the integration of solar energy into the electrolysis process through photoelectrochemical water splitting is examined. This part of the study focuses on the development of a BiVO4photoanode, where doping and junction engineering strategies are employed to improve its light absorption efficiency and charge separation efficiency in the bulk and at the surface of the catalyst, further enhancing the overall water splitting performance. This comprehensive research provides a detailed examination of the challenges associated with OER at the anode in water electrolysis. It features significant advancements in anode material research, focusing on the synthesis, characterization, and performance evaluation of novel catalytic materials. By addressing critical technological challenges and leveraging advanced material engineering strategies, this work aims to pave the way for next-generation anode materials that could substantially enhance the efficiency and scalability of water electrolysis systems.
- 일반주제명
- Crystal structure
- 일반주제명
- Electrolytes
- 일반주제명
- Electrons
- 일반주제명
- Oxidation
- 일반주제명
- Glass substrates
- 일반주제명
- Nanoparticles
- 일반주제명
- Water
- 일반주제명
- Heat
- 일반주제명
- Metal oxides
- 일반주제명
- Energy
- 일반주제명
- Voltammetry
- 일반주제명
- Hydrogen peroxide
- 일반주제명
- Entropy
- 기타저자
- Stanford University.
- 기본자료저록
- Dissertations Abstracts International. 87-01B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
008260126s2024 us c eng d■001000017358708
■00520260202104740
■006m o d
■007cr#unu||||||||
■020 ▼a9798290651699
■035 ▼a(MiAaPQ)AAI32149698
■035 ▼a(MiAaPQ)Stanfordnv516jy6979
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a540
■1001 ▼aBaek, Jihyun.
■24510▼aEngineering Metal Oxide-Based Anode Catalysts For Water Electrolysis
■260 ▼a[Sl]▼bStanford University▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a188 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-01, Section: B.
■500 ▼aAdvisor: Zheng, Xiaolin.
■5021 ▼aThesis (Ph.D.)--Stanford University, 2024.
■520 ▼aWater electrolysis stands as a cornerstone technology for the sustainable production of green hydrogen, a pivotal energy carrier in the global shift towards a low-carbon economy. The efficiency and economic viability of water electrolysis are heavily influenced by the oxygen evolution reaction (OER), a process marked by slow kinetics and substantial overpotential, which impedes overall system efficiency. To address these challenges, this thesis adopts a multidirectional approach to engineer innovative metal oxide-based anode catalysts that can effectively catalyze OER with reduced energy demands and improved durability. The research begins by addressing the limitations of traditional noble metal anodes, such as iridium and ruthenium, which, despite their high catalytic activities, are hindered by issues of cost, scarcity, and durability under operational conditions. This thesis explores the synthesis and application of high-entropy oxides (HEOs) as alternative anode materials. These oxides benefit from a diverse and tunable composition that can be precisely engineered to optimize interaction with OER intermediates, thereby enhancing catalytic activity and stability. The unique properties of HEOs, particularly their configurational entropy, are studied, both theoretically and experimentally, to understand their influence on catalytic performance, potentially leading to significant advancements in electrolysis efficiency. Furthermore, the research extends to exploring alternative anodic reactions that yield valuable chemical products such as hydrogen peroxide (H2O2) instead of oxygen, offering a greener and more manageable approach with reduced operational risks. The production of H2O2involves a two-electron transfer process, which, although requiring higher potentials than the OER, opens avenues for the selective catalysis using perovskite oxides. These materials are screened theoretically by introducing three different stability criteria and, particularly, LaAlO3is investigated for its activity, selectivity, and stability among the library of 2000 perovskite oxides. Lastly, the integration of solar energy into the electrolysis process through photoelectrochemical water splitting is examined. This part of the study focuses on the development of a BiVO4photoanode, where doping and junction engineering strategies are employed to improve its light absorption efficiency and charge separation efficiency in the bulk and at the surface of the catalyst, further enhancing the overall water splitting performance. This comprehensive research provides a detailed examination of the challenges associated with OER at the anode in water electrolysis. It features significant advancements in anode material research, focusing on the synthesis, characterization, and performance evaluation of novel catalytic materials. By addressing critical technological challenges and leveraging advanced material engineering strategies, this work aims to pave the way for next-generation anode materials that could substantially enhance the efficiency and scalability of water electrolysis systems.
■590 ▼aSchool code: 0212.
■650 4▼aCrystal structure
■650 4▼aElectrolytes
■650 4▼aElectrons
■650 4▼aOxidation
■650 4▼aGlass substrates
■650 4▼aNanoparticles
■650 4▼aWater
■650 4▼aHeat
■650 4▼aMetal oxides
■650 4▼aEnergy
■650 4▼aVoltammetry
■650 4▼aHydrogen peroxide
■650 4▼aEntropy
■650 4▼aAtoms & subatomic particles
■690 ▼a0791
■71020▼aStanford University.
■7730 ▼tDissertations Abstracts International▼g87-01B.
■790 ▼a0212
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17358708▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
Preview
Export
ChatGPT Discussion
AI Recommended Related Books
Подробнее информация.
- Бронирование
- не существует
- моя папка
- Первый запрос зрения
- Non-Book Loan Application
- Nighttime Book Loan Application
Available after logging in.


