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Molecular-Level Understanding of Electrode-Electrolyte Interface in Hydrogen Evolution Reaction
Molecular-Level Understanding of Electrode-Electrolyte Interface in Hydrogen Evolution Rea...
Molecular-Level Understanding of Electrode-Electrolyte Interface in Hydrogen Evolution Reaction

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자료유형  
 학위논문 서양
최종처리일시  
20250211151941
ISBN  
9798382786032
DDC  
540
저자명  
Shah, Aamir Hassan.
서명/저자  
Molecular-Level Understanding of Electrode-Electrolyte Interface in Hydrogen Evolution Reaction
발행사항  
[Sl] : University of California, Los Angeles, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
146 p
주기사항  
Source: Dissertations Abstracts International, Volume: 85-12, Section: B.
주기사항  
Advisor: Duan, Xiangfeng.
학위논문주기  
Thesis (Ph.D.)--University of California, Los Angeles, 2024.
초록/해제  
요약The hydrogen evolution reaction (HER) is one of the most fundamental and critical reactions in renewable energy conversion. The recent advancement in various platinum (Pt) nanocatalyst designs has led to greatly improved HER activity. It is well recognized that the HER kinetics is drastically slower in alkaline media compared to acidic media, but the descriptors of the HER kinetics are still elusive. Specifically, in the presence of alkali metal cations and hydroxyl anions, the electrode-electrolyte (platinum-water) interface in an alkaline electrolyte is far more complex than that in an acidic electrolyte. The effects of different alkali metal cations (AM+ ) and pH on these reactions are poorly understood due to a lack of suitable experimental methods. We are combining surface-sensitive electrical transport spectroscopy (ETS) with other electrochemistry techniques and computational studies to probe and understand the fundamental role of different AM+ and pH on the reaction kinetics of HER. Our study provides fundamental insights into how and why AM+ and pH influence the HER in alkaline media. We expect that this research will provide the molecular-level understanding that will shed new insights into electrolyte engineering as an alternative pathway to control electrochemical reaction kinetics.
일반주제명  
Chemistry
일반주제명  
Energy
일반주제명  
Computational chemistry
키워드  
Electrical transport spectroscopy
키워드  
Electrochemistry
키워드  
Hydrogen evolution reaction
키워드  
Interfacial electrochemistry
키워드  
Renewable energy
키워드  
Water splitting
기타저자  
University of California, Los Angeles Chemistry 0153
기본자료저록  
Dissertations Abstracts International. 85-12B.
전자적 위치 및 접속  
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MARC

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■020    ▼a9798382786032
■035    ▼a(MiAaPQ)AAI31302228
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a540
■1001  ▼aShah,  Aamir  Hassan.
■24510▼aMolecular-Level  Understanding  of  Electrode-Electrolyte  Interface  in  Hydrogen  Evolution  Reaction
■260    ▼a[Sl]▼bUniversity  of  California,  Los  Angeles▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a146  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  85-12,  Section:  B.
■500    ▼aAdvisor:  Duan,  Xiangfeng.
■5021  ▼aThesis  (Ph.D.)--University  of  California,  Los  Angeles,  2024.
■520    ▼aThe  hydrogen  evolution  reaction  (HER)  is  one  of  the  most  fundamental  and  critical  reactions  in  renewable  energy  conversion.  The  recent  advancement  in  various  platinum  (Pt)  nanocatalyst  designs  has  led  to  greatly  improved  HER  activity.  It  is  well  recognized  that  the  HER  kinetics  is  drastically  slower  in  alkaline  media  compared  to  acidic  media,  but  the  descriptors  of  the  HER  kinetics  are  still  elusive.  Specifically,  in  the  presence  of  alkali  metal  cations  and  hydroxyl  anions,  the  electrode-electrolyte  (platinum-water)  interface  in  an  alkaline  electrolyte  is  far  more  complex  than  that  in  an  acidic  electrolyte.  The  effects  of  different  alkali  metal  cations  (AM+  )  and  pH  on  these  reactions  are  poorly  understood  due  to  a  lack  of  suitable  experimental  methods.  We  are  combining  surface-sensitive  electrical  transport  spectroscopy  (ETS)  with  other  electrochemistry  techniques  and  computational  studies  to  probe  and  understand  the  fundamental  role  of  different  AM+  and  pH  on  the  reaction  kinetics  of  HER.  Our  study  provides  fundamental  insights  into  how  and  why  AM+  and  pH  influence  the  HER  in  alkaline  media.  We  expect  that  this  research  will  provide  the  molecular-level  understanding  that  will  shed  new  insights  into  electrolyte  engineering  as  an  alternative  pathway  to  control  electrochemical  reaction  kinetics.
■590    ▼aSchool  code:  0031.
■650  4▼aChemistry
■650  4▼aEnergy
■650  4▼aComputational  chemistry
■653    ▼aElectrical  transport  spectroscopy
■653    ▼aElectrochemistry
■653    ▼aHydrogen  evolution  reaction
■653    ▼aInterfacial  electrochemistry
■653    ▼aRenewable  energy
■653    ▼aWater  splitting
■690    ▼a0485
■690    ▼a0219
■690    ▼a0791
■71020▼aUniversity  of  California,  Los  Angeles▼bChemistry  0153.
■7730  ▼tDissertations  Abstracts  International▼g85-12B.
■790    ▼a0031
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17162171▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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