| Texto completo | |
| Autor(es): |
Venkatkarthick, Radhakrishnan
Número total de Autores: 1
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| Tipo de documento: | Artigo Científico |
| Fonte: | CHEMICAL RECORD; v. N/A, p. 39-pg., 2025-12-26. |
| Resumo | |
Electrochemical water splitting offers a sustainable pathway for green hydrogen production; however, it remains constrained by the sluggish kinetics of the hydrogen evolution and oxygen evolution reactions. Nature's metalloenzymes, such as [FeFe] hydrogenases and the Mn4CaO5 cluster in photosystem II, exemplify exceptional catalytic efficiency using earth-abundant metals via proton-coupled electron transfer and cooperative metal-site interactions. This review highlights the advances in biomimetic electrocatalysts and traces their evolution from molecular analogs to heterogeneous systems, including oxygen-evolving complex mimic Mn/Ca clusters, biomimetic metal-porphyrinoids, metal-organic and covalent frameworks, nanostructured layered double hydroxides, Janus chalcogenides, high-entropy alloys, and single-atom catalysts. Hierarchical, self-healing, and dynamically stable architectures that sustain catalytic activity under operational stress are emphasized, supported by ultrafast operando spectroscopies that capture real-time active-site transformations. Emerging strategies, such as decoupled water splitting, direct seawater electrolysis, and the integration of machine learning and digital twin frameworks, are accelerating predictive catalyst design and system-level optimization. Adapting bioinspired design principles into electrolyzer architectures further enhances system efficiency. Despite meaningful advances, biomimetic systems remain hampered by their constrained durability, synthetic scale-up challenges, and unresolved mechanistic intricacies. Their progress toward practical electrolyzer technologies hinges on the concerted integration of bioinspired design, material innovation, and high-fidelity characterization. (AU) | |
| Processo FAPESP: | 22/07207-9 - Eletrodos a base de Au e Cu modificados superficialmente por moléculas funcionais com grupos alcalinos e hidrofóbicos para a redução de dióxido de carbono |
| Beneficiário: | Radhakrishnan Venkatkarthick |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |