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Atomic- To Reactor-Scale: Using In-Situ ETEM and Autonomous Reactors to Understand Plasmonic Photocatalysis
Atomic- To Reactor-Scale: Using In-Situ ETEM and Autonomous Reactors to Understand Plasmon...
Atomic- To Reactor-Scale: Using In-Situ ETEM and Autonomous Reactors to Understand Plasmonic Photocatalysis

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자료유형  
 학위논문 서양
최종처리일시  
20260202105622
ISBN  
9798265428462
DDC  
000
저자명  
Bourgeois, Briley.
서명/저자  
Atomic- To Reactor-Scale: Using In-Situ ETEM and Autonomous Reactors to Understand Plasmonic Photocatalysis
발행사항  
[Sl] : Stanford University, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
167 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-05, Section: B.
주기사항  
Advisor: Dionne, Jennifer.
학위논문주기  
Thesis (Ph.D.)--Stanford University, 2024.
초록/해제  
요약The demands of the petrochemical industry put a large stress on the environment, motivating a search for more sustainable methods of chemical manufacturing. One promising technology is plasmonic photocatalysis. Plasmons, the collective oscillation of conduction electron in response to light, give rise to geometry dependent optical properties in nanostructured metallic particles. These resonant optical interactions lead to high energy charge carriers which may participate in chemical reactions. Unfortunately, the ultrasmall and ultrafast interaction of these carriers with molecules is difficult to probe. The focus of this work is to combine automated ensemble level approaches with fundamental investigations in search of the underlying mechanisms of plasmonic photocatalysis. An introduction to the challenges of characterizing plasmonic chemistry is provided in addition to background information on in situ electron microscopy and our model system, Pd hydride. Chapter 2 demonstrates the considerations needed for building a photocatalysis system from scratch. The proceeding two chapters describe the synthesis and testing of two plasmonic alloyed catalysts and their behavior for light-driven acetylene hydrogenation. Finally, similar alloy catalysts are explored using environmental transmission electron microscopy to understand their structure under working conditions, and the final chapter documents efforts to push the frontier of this measurement technique through both rigorous optically coupled ETEM measurements and system improvements. The goal of this project is to explore plasmonic photocatalysis using a multimodal approach in which practical demonstration and fundamental investigation can be performed on the same system.
일반주제명  
Temperature effects
일반주제명  
Fourier transforms
일반주제명  
Fossil fuels
일반주제명  
Single crystals
일반주제명  
Lasers
일반주제명  
Nanoparticles
일반주제명  
Chemical reactions
일반주제명  
Microscopy
일반주제명  
Isotopes
일반주제명  
Phase transitions
일반주제명  
Chemistry
일반주제명  
Chromatography
일반주제명  
Hydrogenation
일반주제명  
Catalysis
일반주제명  
Photocatalysis
일반주제명  
Energy consumption
일반주제명  
Atoms & subatomic particles
일반주제명  
Atomic physics
일반주제명  
Mathematics
일반주제명  
Nanotechnology
일반주제명  
Optics
기타저자  
Stanford University.
기본자료저록  
Dissertations Abstracts International. 87-05B.
전자적 위치 및 접속  
로그인 후 원문을 볼 수 있습니다.

MARC

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■035    ▼a(MiAaPQ)AAI32316516
■035    ▼a(MiAaPQ)Stanfordmp024kw7032
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a000
■1001  ▼aBourgeois,  Briley.
■24510▼aAtomic-  To  Reactor-Scale:  Using  In-Situ  ETEM  and  Autonomous  Reactors  to  Understand  Plasmonic  Photocatalysis
■260    ▼a[Sl]▼bStanford  University▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a167  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-05,  Section:  B.
■500    ▼aAdvisor:  Dionne,  Jennifer.
■5021  ▼aThesis  (Ph.D.)--Stanford  University,  2024.
■520    ▼aThe  demands  of  the  petrochemical  industry  put  a  large  stress  on  the  environment,  motivating  a  search  for  more  sustainable  methods  of  chemical  manufacturing.  One  promising  technology  is  plasmonic  photocatalysis.  Plasmons,  the  collective  oscillation  of  conduction  electron  in  response  to  light,  give  rise  to  geometry  dependent  optical  properties  in  nanostructured  metallic  particles.  These  resonant  optical  interactions  lead  to  high  energy  charge  carriers  which  may  participate  in  chemical  reactions.  Unfortunately,  the  ultrasmall  and  ultrafast  interaction  of  these  carriers  with  molecules  is  difficult  to  probe.  The  focus  of  this  work  is  to  combine  automated  ensemble  level  approaches  with  fundamental  investigations  in  search  of  the  underlying  mechanisms  of  plasmonic  photocatalysis.  An  introduction  to  the  challenges  of  characterizing  plasmonic  chemistry  is  provided  in  addition  to  background  information  on  in  situ  electron  microscopy  and  our  model  system,  Pd  hydride.  Chapter  2  demonstrates  the  considerations  needed  for  building  a  photocatalysis  system  from  scratch.  The  proceeding  two  chapters  describe  the  synthesis  and  testing  of  two  plasmonic  alloyed  catalysts  and  their  behavior  for  light-driven  acetylene  hydrogenation.  Finally,  similar  alloy  catalysts  are  explored  using  environmental  transmission  electron  microscopy  to  understand  their  structure  under  working  conditions,  and  the  final  chapter  documents  efforts  to  push  the  frontier  of  this  measurement  technique  through  both  rigorous  optically  coupled  ETEM  measurements  and  system  improvements.  The  goal  of  this  project  is  to  explore  plasmonic  photocatalysis  using  a  multimodal  approach  in  which  practical  demonstration  and  fundamental  investigation  can  be  performed  on  the  same  system.
■590    ▼aSchool  code:  0212.
■650  4▼aTemperature  effects
■650  4▼aFourier  transforms
■650  4▼aFossil  fuels
■650  4▼aSingle  crystals
■650  4▼aLasers
■650  4▼aNanoparticles
■650  4▼aChemical  reactions
■650  4▼aMicroscopy
■650  4▼aIsotopes
■650  4▼aPhase  transitions
■650  4▼aChemistry
■650  4▼aChromatography
■650  4▼aHydrogenation
■650  4▼aCatalysis
■650  4▼aPhotocatalysis
■650  4▼aEnergy  consumption
■650  4▼aAtoms  &  subatomic  particles
■650  4▼aAtomic  physics
■650  4▼aMathematics
■650  4▼aNanotechnology
■650  4▼aOptics
■690    ▼a0485
■690    ▼a0748
■690    ▼a0405
■690    ▼a0652
■690    ▼a0752
■71020▼aStanford  University.
■7730  ▼tDissertations  Abstracts  International▼g87-05B.
■790    ▼a0212
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360808▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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