V、S共掺杂促进析氢反应诱导Co3O4表面重构

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-06-30 DOI:10.1016/j.matlet.2025.139004

Lin Xu , Yixue Xu , Chenyang Hao , Yuqiao Wang

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引用次数: 0

摘要

采用V、S双掺杂策略优化Co3O4的电子环境，诱导表面重构。V掺杂利用空电子轨道促进了重构过程中的电荷转移。S掺杂促进了Co3+活性位点的生成，为表面重构创造了必要条件。重构后，在V、S双掺杂的Co3O4 （V, S-Co3O4）表面生成CoOOH活性相，所得CoOOH/V， S-Co3O4的析氢反应过电位低至35 mV。

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Surface reconstruction of Co3O4 induced by V, S co-doping for boosting hydrogen evolution reaction

The strategy of dual doping with V and S was adopted to optimise the electronic environment of Co₃O₄ and induce surface reconstruction. V doping facilitated charge transfer during the reconstruction process by utilising vacant electron orbitals. S doping promoted the generation of Co³⁺ active sites, creating the necessary condition for surface reconstruction. After reconstruction, CoOOH active phase was generated on the surface of V, S dual doped Co₃O₄ (V, S-Co₃O₄), and the obtained CoOOH/V, S-Co₃O₄ exhibited a low overpotential of 35 mV for hydrogen evolution reaction (HER).

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive