Reinforcement learning world models for catalyst surface reconstruction: state-of-the-art review
1 State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, China
2 School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, China
3 School of Management, Northwestern Polytechnical University, Xi’an 710072, China
Abstract

Catalyst surfaces are dynamic objects that constantly rebuild in response to stimuli like temperature, electrochemical potentials, and adsorbates under reactive conditions. Conventional catalyst design paradigms, relying on static pre-catalyst structures, fail to account for this intrinsic dynamism, leading to imprecise predictions of catalytic activity and stability. This review critically analyzes the shortcomings of empirical and simulation-based design approaches while synthesizing basic surface restructuring phenomena (such as oxidation-state dynamics in PtCu single-atom alloys and adsorbate-induced phase transitions in AgPd nanoalloys). We investigate the possibilities of World Models guided Reinforcement Learning frameworks based on neural networks as a viable method for controlling and predicting surface reconstruction. These methods allow adaptive policy optimization in dynamic catalytic systems by combining experimental data with physics-informed atomistic simulations. The review describes important challenges in uncertainty quantification, reward balancing, and latent state interpretability for future catalyst-specific world models, while highlighting how AI frameworks trained on operando data, when paired with simulations informed by physics, opens new avenues for predictive catalyst design.

Keywords

reinforcement learning world models; catalyst surface reconstruction; model-based reinforcement learning; dreamer algorithm; adaptive catalyst surface control; computational catalysis; density functional theory; surrogate models; inverse design in catalysis

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