Role of Quantum Chemistry in Catalysis: A Comprehensive Review

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Year : 2026 | Volume : 13 | 01 | Page :
    By

    Ravuri Hema Krishna,

  1. Professor, Department of Chemistry, Amrita Sai Institute of Science and Technology, Andhra Pradesh, India

Abstract

Catalysis plays a crucial role in modern chemical manufacturing, energy conversion, and environmental protection by enabling chemical reactions to occur more rapidly, selectively, and with reduced energy consumption. A fundamental understanding of catalytic processes at the atomic and electronic levels is essential for the rational design and optimization of catalysts. Quantum chemistry has emerged as a powerful theoretical and computational framework that enables detailed investigation of electronic structure, reaction energetics, and catalytic mechanisms. By providing molecular-level insight into electron distribution, orbital interactions, and transition-state stabilization, quantum chemical methods bridge the gap between experimental observations and microscopic reaction dynamics. This review comprehensively examines the role of quantum chemistry in catalysis research, highlighting fundamental concepts, computational methodologies, mechanistic insights, and practical applications. Key quantum-mechanical principles relevant to catalysis, including electronic structure theory, potential energy surfaces, transition states, and donor–acceptor orbital interactions, are discussed in the context of catalytic activity and selectivity. Major computational approaches such as Hartree–Fock theory, post–Hartree–Fock correlated methods, and density functional theory are evaluated in terms of their theoretical foundations, computational efficiency, and applicability to catalytic systems. In addition, hybrid techniques such as quantum mechanics/molecular mechanics (QM/MM) are explored for studying complex catalytic environments, particularly enzymatic systems and supported catalysts. The review further highlights the application of quantum chemistry in homogeneous, heterogeneous, and enzymatic catalysis, demonstrating how computational methods reveal reaction mechanisms, determine activation energies, and identify rate-determining steps. Case studies such as ammonia synthesis illustrate how quantum chemical calculations contribute to mechanistic understanding and catalyst optimization. Recent developments including high-throughput computational screening, machine-learning-assisted catalyst discovery, multiscale modeling, and emerging quantum computing technologies are also discussed. Despite challenges related to computational cost and methodological limitations, the continued integration of quantum chemistry with experimental studies and data-driven approaches is expected to accelerate catalyst discovery and support the development of efficient, selective, and sustainable catalytic systems for future chemical and energy technologies.

Keywords: Quantum chemistry; catalysis; density functional theory; reaction mechanisms; potential energy surface; catalyst design

How to cite this article:
Ravuri Hema Krishna. Role of Quantum Chemistry in Catalysis: A Comprehensive Review. Journal of Catalyst & Catalysis. 2026; 13(01):-.
How to cite this URL:
Ravuri Hema Krishna. Role of Quantum Chemistry in Catalysis: A Comprehensive Review. Journal of Catalyst & Catalysis. 2026; 13(01):-. Available from: https://journals.stmjournals.com/jocc/article=2026/view=241650


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Ahead of Print Subscription Review Article
Volume 13
01
Received 09/02/2026
Accepted 16/03/2026
Published 28/03/2026
Publication Time 47 Days
1

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