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Linking reaction mechanisms and quantum chemistry: An ontological approach

Accepted version
Peer-reviewed

Type

Article

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Abstract

In this paper, a linked-data framework for connecting species in chemical kinetic reaction mechanisms with quantum calculations is presented. A mechanism can be constructed from thermodynamic, reaction rate, and transport data that has been obtained either experimentally, computationally, or by a combination of both. This process in practice requires multiple sources of data, which raises, inter alia, species naming and data inconsistency issues. A linked data-centric knowledge-graph approach is taken in this work to address these challenges. In order to implement this approach, two existing ontologies, namely OntoKin, for representing chemical kinetic reaction mechanisms, and OntoCompChem, for representing quantum chemistry calculations, are extended. In addition, a new ontology, which we call OntoSpecies, is developed for uniquely representing chemical species. The framework also includes agents to populate and link knowledge-bases created through the instantiation of these ontologies. In addition, the developed knowledge-graph and agents naturally form a part of the J-Park Simulator (JPS) – an Industry 4.0 platform which combines linked data and an eco-system of autonomous agents for cross-domain applications. The functionality of the framework is demonstrated via a use-case based on a hydrogen combustion mechanism.

Description

Keywords

Chemical kinetic reaction mechanism, Quantum chemistry, Linked data, Chemical ontology, Thermodynamic data, Knowledge-graph, J-Park Simulator

Journal Title

Computers and Chemical Engineering

Conference Name

Journal ISSN

0098-1354
1873-4375

Volume Title

137

Publisher

Elsevier BV
Sponsorship
National Research Foundation Singapore (via Cambridge Centre for Advanced Research and Education in Singapore (CARES)) (unknown)
European Commission Horizon 2020 (H2020) Societal Challenges (724145)
1. The National Research Foundation (NRF), Prime Minister’s Office, Singapore under its Campus for Research Excellence and Technological Enterprise (CREATE) programme. 2. The European Union Horizon 2020 Research and Innovation Programme under grant agreement 724145. 3. Alexander von Humboldt foundation.