Energy-efficient anodic reactions for sustainable hydrogen production via water electrolysis

Chemical Synthesis, Год журнала: 2023, Номер 3(4)

Опубликована: Окт. 13, 2023

Overall water splitting is considered as an effective technique for hydrogen (H2) production; however, it usually requires large operating voltage mainly due to the high equilibrium potential of anodic oxygen evolution reaction (OER). Replacing OER with energy-saving anode reactions not only reduces H2 production but also generates high-value-added chemicals or purifies wastewater. This review article provides overview fundamental principles overall and typical alternative reactions, including methanol oxidation, hydrazine urea oxidation reactions. Then, preparation methods, regulation strategies, composition/structure-performance relations advanced catalysts these energy-efficient generation technologies are discussed. Finally, we propose underlying challenges perspectives this promising field.

Язык: Английский

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Regulating HER and OER Performances of 2D Materials by the External Physical Fields

Acta Physico-Chimica Sinica, Год журнала: 2023, Номер 0(0), С. 0 - 0

Опубликована: Янв. 1, 2023

Abstract: Hydrogen fuel has long been considered a promising and practical alternative to conventional fossil fuels for shaping the future of our energy landscape. The electrocatalytic water-splitting technique, sustainable eco-friendly technology, provides viable solution efficiently abundantly producing high-purity hydrogen on large scale. However, applications this technology require continuous improvement in reaction kinetics evolution (HER) at anode oxygen (OER) cathode. Additionally, ongoing optimization catalyst's catalytic activity structural stability is crucial implementation technology. selection suitable catalysts paramount importance water splitting. As result, two-dimensional (2D) nanomaterials have become focal point electrolysis due their unique physicochemical properties abundant active sites. atomic thinness 2D materials makes electronic structure easily adjustable, allowing precise control performance through morphological modifications, defect engineering, phase transitions, cocatalyst deposition, element doping. complex system design potentially mutual interference various chemical components could hinder further improvements performance. Fortunately, distinctive characteristics can synergize with external physical fields, leading enhanced distinct effects. For example, magnetic electric light fields induce thermal effects, effectively reducing charge transfer resistance bubble coverage catalyst surface. Strain regulate d-band center, thus controlling adsorption energy. Moreover, superposition multiple effects single field offer enormous potential enhancing It evident that regulation holds significant untapped potential. Consequently, roles mechanisms assistance HER OER garnered increasing attention. External such as strain, light, temperature, ultrasound be applied synthesis electrocatalysis. This paper first summary research field-assisted electrolytic catalysts. then classifies studies based different mechanisms. Finally, it outlines key challenges prospects rapidly evolving field.

Язык: Английский

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Efficient Charge Separation in Ag/PCN/UPDI Ternary Heterojunction for Optimized Photothermal‐Photocatalytic Performance via Tandem Electric Fields

Small, Год журнала: 2024, Номер 20(28)

Опубликована: Май 21, 2024

Charge separation driven by the internal electric field is a research hotspot in photocatalysis. However, it remains challenging to accurately control continuously accelerate charge transfer. Herein, strategy of constructing tandem transfer photocatalysts proposed. The plasma field, interface and intramolecular are integrated into Ag/g-C

Язык: Английский

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Atomically dispersed Pd on defective BN nanosheets for nitrite electroreduction to ammonia

Journal of Colloid and Interface Science, Год журнала: 2023, Номер 653, С. 390 - 395

Опубликована: Сен. 16, 2023

Язык: Английский

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Cathode materials for halide-based aqueous redox flow batteries: recent progress and future perspectives

Nanoscale, Год журнала: 2023, Номер 15(9), С. 4250 - 4260

Опубликована: Янв. 1, 2023

Various electrode materials and relevant modification approaches used for zinc-halogen, hydrogen-halogen, polysulfide-halogen ARFB systems are summarized, the mechanisms regulatory means illustrated.

Язык: Английский

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