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Deep Learning Frameworks for Accelerating Catalyst Simulations
Deep Learning Frameworks for Accelerating Catalyst Simulations
Deep Learning Frameworks for Accelerating Catalyst Simulations

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자료유형  
 학위논문 서양
최종처리일시  
20250211153146
ISBN  
9798896070160
DDC  
660
저자명  
Kolluru, Adeesh.
서명/저자  
Deep Learning Frameworks for Accelerating Catalyst Simulations
발행사항  
[Sl] : Carnegie Mellon University, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
136 p
주기사항  
Source: Dissertations Abstracts International, Volume: 86-04, Section: B.
주기사항  
Advisor: Kitchin, John R.
학위논문주기  
Thesis (Ph.D.)--Carnegie Mellon University, 2024.
초록/해제  
요약Machine learning (ML) methods have the potential to solve the longstanding challenge of discovering catalysts that can convert renewable energy to fuel, discovering molecules with desired properties, and discovering drugs as they are up to O(105) times faster than the conventional quantum mechanical (QM) simulators like Density Functional Theory (DFT). Graph Neural Networks (GNNs) have emerged as promising approximators of DFT but face challenges with generalization. Moreover, for a few simulations replacing DFT with GNNs is not sufficient to perform large-scale screening and requires the development of fundamentally novel approaches to accelerate simulations.This thesis explores advanced machine learning (ML) methodologies and frameworks for accelerating materials discovery, with a primary focus on heterogeneous catalysis. The research addresses challenges in large-scale ML applications within catalysis, examining out-of-distribution generalization, metrics, and methodological approaches. A novel transfer learning framework is proposed to improve the generalization of the model across atomic domains. While generalizable ML potentials significantly expedite catalyst simulation by substituting density functional theory (DFT), the thesis demonstrates that novel ML frameworks can further accelerate simulations. To this end, a GNN model is developed to efficiently learn and directly predict the optimal adsorbate-catalyst configurations. The research culminates in the development of a diffusion framework designed to accelerate adsorbate-catalyst optimization processes.
일반주제명  
Chemical engineering
일반주제명  
Computer engineering
일반주제명  
Energy
키워드  
Computational catalysis
키워드  
Diffusion models
키워드  
Graph Neural Networks
키워드  
Machine learning
키워드  
Transfer learning
기타저자  
Carnegie Mellon University Chemical Engineering
기본자료저록  
Dissertations Abstracts International. 86-04B.
전자적 위치 및 접속  
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■1001  ▼aKolluru,  Adeesh.▼0(orcid)0000-0001-8125-6881
■24510▼aDeep  Learning  Frameworks  for  Accelerating  Catalyst  Simulations
■260    ▼a[Sl]▼bCarnegie  Mellon  University▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a136  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  86-04,  Section:  B.
■500    ▼aAdvisor:  Kitchin,  John  R.
■5021  ▼aThesis  (Ph.D.)--Carnegie  Mellon  University,  2024.
■520    ▼aMachine  learning  (ML)  methods  have  the  potential  to  solve  the  longstanding  challenge  of  discovering  catalysts  that  can  convert  renewable  energy  to  fuel,  discovering  molecules  with  desired  properties,  and  discovering  drugs  as  they  are  up  to  O(105)  times  faster  than  the  conventional  quantum  mechanical  (QM)  simulators  like  Density  Functional  Theory  (DFT).  Graph  Neural  Networks  (GNNs)  have  emerged  as  promising  approximators  of  DFT  but  face  challenges  with  generalization.  Moreover,  for  a  few  simulations  replacing  DFT  with  GNNs  is  not  sufficient  to  perform  large-scale  screening  and  requires  the  development  of  fundamentally  novel  approaches  to  accelerate  simulations.This  thesis  explores  advanced  machine  learning  (ML)  methodologies  and  frameworks  for  accelerating  materials  discovery,  with  a  primary  focus  on  heterogeneous  catalysis.  The  research  addresses  challenges  in  large-scale  ML  applications  within  catalysis,  examining  out-of-distribution  generalization,  metrics,  and  methodological  approaches.  A  novel  transfer  learning  framework  is  proposed  to  improve  the  generalization  of  the  model  across  atomic  domains.  While  generalizable  ML  potentials  significantly  expedite  catalyst  simulation  by  substituting  density  functional  theory  (DFT),  the  thesis  demonstrates  that  novel  ML  frameworks  can  further  accelerate  simulations.  To  this  end,  a  GNN  model  is  developed  to  efficiently  learn  and  directly  predict  the  optimal  adsorbate-catalyst  configurations.  The  research  culminates  in  the  development  of  a  diffusion  framework  designed  to  accelerate  adsorbate-catalyst  optimization  processes.
■590    ▼aSchool  code:  0041.
■650  4▼aChemical  engineering
■650  4▼aComputer  engineering
■650  4▼aEnergy
■653    ▼aComputational  catalysis
■653    ▼aDiffusion  models
■653    ▼aGraph  Neural  Networks
■653    ▼aMachine  learning
■653    ▼aTransfer  learning
■690    ▼a0542
■690    ▼a0464
■690    ▼a0791
■71020▼aCarnegie  Mellon  University▼bChemical  Engineering.
■7730  ▼tDissertations  Abstracts  International▼g86-04B.
■790    ▼a0041
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17165187▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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