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Exploring Inorganic Materials Synthesis Prediction With High Dimensional Phase Diagrams
Exploring Inorganic Materials Synthesis Prediction With High Dimensional Phase Diagrams
Exploring Inorganic Materials Synthesis Prediction With High Dimensional Phase Diagrams

상세정보

자료유형  
 학위논문 서양
최종처리일시  
20250211152951
ISBN  
9798384041788
DDC  
621.3
저자명  
Chen, Jiadong.
서명/저자  
Exploring Inorganic Materials Synthesis Prediction With High Dimensional Phase Diagrams
발행사항  
[Sl] : University of Michigan, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
171 p
주기사항  
Source: Dissertations Abstracts International, Volume: 86-03, Section: B.
주기사항  
Advisor: Sun, Wenhao.
학위논문주기  
Thesis (Ph.D.)--University of Michigan, 2024.
초록/해제  
요약Why are certain compounds synthesizable while others are not? This question represents a fundamental inquiry in the field of solid-state chemistry. It also serves as a central focus within the realm of computational materials prediction, aligning closely with the objectives of the Materials Genome Initiative. This dissertation primarily focuses on the prediction of material synthesis with a dual-pronged approach. Firstly, it extensively explores material stability by constructing high-dimensional phase diagrams driven by fundamental thermodynamics. This process aims to generate phase diagrams for complex experimental synthesis conditions, and offers a comprehensive visual thermodynamic representation of material stability. Additionally, this dissertation delves into targeted material synthesis, utilizing high dimensional phase diagram to enhance target material stability or design efficient synthesis recipes. These approaches accelerate the realization of theoretically predicted materials and guides the process of high-throughput robotic experimental synthesis, ultimately advancing our understanding and capabilities in materials synthesis. Phase diagrams are crucial tools for materials scientists, indicating the equilibrium phases under specific thermodynamic conditions. While most phase diagrams are two-dimensional, with axes typically representing temperature-pressure or temperature-composition, the complexity of modern materials demands consideration of additional thermodynamic factors, such as elastic, surface, electromagnetic, or electrochemical work. This expansion necessitates phase diagrams in higher dimensions (≥3). In our pursuit of constructing high-dimensional phase diagrams with any thermodynamic variable on its axes, we explore the duality between extensive and intensive conjugate variables in equilibrium and non-equilibrium thermodynamics. This duality takes various forms, including distinctions between closed and open boundary conditions, relationships between Internal Energy and its Legendre transformations, and the point-line duality in convex hulls versus half-space intersections. Specifically, we derive the duality relationships for chemical work involving extensive composition variables (N) and intensive chemical potentials (μ). Designing thermodynamic conditions to enhance or diminish the stability of a target material is a crucial task in materials engineering. For instance, during materials synthesis, the objective is often to increase the stability of a target phase relative to its precursors or competing byproduct phases. To facilitate this, we introduced a generalized Clausius-Clapeyron relation, guiding the identification of optimal directions on a high-dimensional phase diagram for stabilizing or destabilizing a target phase. Using this approach, we analyze the acid stability of manganese oxide catalysts through a 4-dimensional Pourbaix diagram with axes representing pH, redox potential, nanoparticle size, and aqueous potassium ion concentration. Additional discussions on Pourbaix diagrams with varying natural variables and in different solvents like aqueous solutions, supercritical ammonia and ethanol contribute to the broadening of Pourbaix diagram applications. Efficient synthesis is essential for realizing predicted materials and producing complex ones. However, solid-state synthesis of multicomponent oxides often encounters challenges from undesired by-product phases, which can stall reactions kinetics. Here, we present a thermodynamic strategy to navigate high-dimensional phase diagrams, seeking precursors that avoid low-energy competing by-products and maximize reaction energy for rapid kinetics. Validating this strategy using a robotic inorganic materials synthesis laboratory, we find our predicted precursors often yield purer target materials than traditional ones. Robotic labs offer a data-driven platform for experimental synthesis science, guiding both human and robotic chemists.
일반주제명  
Computer engineering
일반주제명  
Physics
일반주제명  
Materials science
일반주제명  
Physical chemistry
일반주제명  
Thermodynamics
키워드  
Computational materials
키워드  
Phase diagrams
키워드  
Synthesis prediction
키워드  
Automated laboratory
키워드  
Pourbaix diagrams
기타저자  
University of Michigan Materials Science and Engineering
기본자료저록  
Dissertations Abstracts International. 86-03B.
전자적 위치 및 접속  
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MARC

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■24510▼aExploring  Inorganic  Materials  Synthesis  Prediction  With  High  Dimensional  Phase  Diagrams
■260    ▼a[Sl]▼bUniversity  of  Michigan▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a171  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  86-03,  Section:  B.
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■5021  ▼aThesis  (Ph.D.)--University  of  Michigan,  2024.
■520    ▼aWhy  are  certain  compounds  synthesizable  while  others  are  not?  This  question  represents  a  fundamental  inquiry  in  the  field  of  solid-state  chemistry.  It  also  serves  as  a  central  focus  within  the  realm  of  computational  materials  prediction,  aligning  closely  with  the  objectives  of  the  Materials  Genome  Initiative.  This  dissertation  primarily  focuses  on  the  prediction  of  material  synthesis  with  a  dual-pronged  approach.  Firstly,  it  extensively  explores  material  stability  by  constructing  high-dimensional  phase  diagrams  driven  by  fundamental  thermodynamics.  This  process  aims  to  generate  phase  diagrams  for  complex  experimental  synthesis  conditions,  and  offers  a  comprehensive  visual  thermodynamic  representation  of  material  stability.  Additionally,  this  dissertation  delves  into  targeted  material  synthesis,  utilizing  high  dimensional  phase  diagram  to  enhance  target  material  stability  or  design  efficient  synthesis  recipes.  These  approaches  accelerate  the  realization  of  theoretically  predicted  materials  and  guides  the  process  of  high-throughput  robotic  experimental  synthesis,  ultimately  advancing  our  understanding  and  capabilities  in  materials  synthesis.  Phase  diagrams  are  crucial  tools  for  materials  scientists,  indicating  the  equilibrium  phases  under  specific  thermodynamic  conditions.  While  most  phase  diagrams  are  two-dimensional,  with  axes  typically  representing  temperature-pressure  or  temperature-composition,  the  complexity  of  modern  materials  demands  consideration  of  additional  thermodynamic  factors,  such  as  elastic,  surface,  electromagnetic,  or  electrochemical  work.  This  expansion  necessitates  phase  diagrams  in  higher  dimensions  (≥3).  In  our  pursuit  of  constructing  high-dimensional  phase  diagrams  with  any  thermodynamic  variable  on  its  axes,  we  explore  the  duality  between  extensive  and  intensive  conjugate  variables  in  equilibrium  and  non-equilibrium  thermodynamics.  This  duality  takes  various  forms,  including  distinctions  between  closed  and  open  boundary  conditions,  relationships  between  Internal  Energy  and  its  Legendre  transformations,  and  the  point-line  duality  in  convex  hulls  versus  half-space  intersections.  Specifically,  we  derive  the  duality  relationships  for  chemical  work  involving  extensive  composition  variables  (N)  and  intensive  chemical  potentials  (μ).  Designing  thermodynamic  conditions  to  enhance  or  diminish  the  stability  of  a  target  material  is  a  crucial  task  in  materials  engineering.  For  instance,  during  materials  synthesis,  the  objective  is  often  to  increase  the  stability  of  a  target  phase  relative  to  its  precursors  or  competing  byproduct  phases.  To  facilitate  this,  we  introduced  a  generalized  Clausius-Clapeyron  relation,  guiding  the  identification  of  optimal  directions  on  a  high-dimensional  phase  diagram  for  stabilizing  or  destabilizing  a  target  phase.  Using  this  approach,  we  analyze  the  acid  stability  of  manganese  oxide  catalysts  through  a  4-dimensional  Pourbaix  diagram  with  axes  representing  pH,  redox  potential,  nanoparticle  size,  and  aqueous  potassium  ion  concentration.  Additional  discussions  on  Pourbaix  diagrams  with  varying  natural  variables  and  in  different  solvents  like  aqueous  solutions,  supercritical  ammonia  and  ethanol  contribute  to  the  broadening  of  Pourbaix  diagram  applications.  Efficient  synthesis  is  essential  for  realizing  predicted  materials  and  producing  complex  ones.  However,  solid-state  synthesis  of  multicomponent  oxides  often  encounters  challenges  from  undesired  by-product  phases,  which  can  stall  reactions  kinetics.  Here,  we  present  a  thermodynamic  strategy  to  navigate  high-dimensional  phase  diagrams,  seeking  precursors  that  avoid  low-energy  competing  by-products  and  maximize  reaction  energy  for  rapid  kinetics.  Validating  this  strategy  using  a  robotic  inorganic  materials  synthesis  laboratory,  we  find  our  predicted  precursors  often  yield  purer  target  materials  than  traditional  ones.  Robotic  labs  offer  a  data-driven  platform  for  experimental  synthesis  science,  guiding  both  human  and  robotic  chemists.
■590    ▼aSchool  code:  0127.
■650  4▼aComputer  engineering
■650  4▼aPhysics
■650  4▼aMaterials  science
■650  4▼aPhysical  chemistry
■650  4▼aThermodynamics
■653    ▼aComputational  materials
■653    ▼aPhase  diagrams
■653    ▼aSynthesis  prediction
■653    ▼aAutomated  laboratory
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■71020▼aUniversity  of  Michigan▼bMaterials  Science  and  Engineering.
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■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17164345▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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