Ternary ZnO/Co3O4/CuO heterostructure nanocomposites derived from trimetallic metal-organic frameworks for efficient electrocatalytic water oxidation

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

Materials Letters Pub Date : 2024-11-07 DOI:10.1016/j.matlet.2024.137692

Peng Zhong , Jiacheng Wang , Jie Zhu , Haoran Lin , Lin Li , Xiaoming Lin , Yuchen Zheng , Hao Yang , Lei Hu

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Abstract

Enhancing the electrocatalytic performance of transition-metal oxide catalysts by optimizing the active center at the multi-component heterointerface is a daunting task. Herein, the three-component ZnO/Co₃O₄/CuO heterostructure composite catalyst was effectively produced through a room-temperature precipitation reaction, followed by calcination in air. The ZnO/Co₃O₄/CuO ternary heterostructure catalyst showed superior oxygen evolution reaction (OER) performance, characterized by a low overpotential (312 mV at 10 mA cm⁻²) and Tafel slope (83.5 mV dec^-1) compared to the ZnO, Co₃O₄, ZnO/CuO, ZnO/Co₃O₄, and Co₃O₄/CuO catalysts. The research shows that the property of electrocatalytic oxygen evolution is greatly enhanced due to the combined impact of each component.

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源自三金属金属有机框架的三元 ZnO/Co3O4/CuO 异质结构纳米复合材料用于高效电催化水氧化

通过优化多组分异质界面的活性中心来提高过渡金属氧化物催化剂的电催化性能是一项艰巨的任务。本文通过室温沉淀反应，然后在空气中煅烧，有效地制备了三组分 ZnO/Co3O4/CuO 异质结构复合催化剂。与 ZnO、Co3O4、ZnO/CuO、ZnO/Co3O4 和 Co3O4/CuO 催化剂相比，ZnO/Co3O4/CuO 三元异质结构催化剂的过电位（10 mA cm-2 时为 312 mV）和 Tafel 斜率（83.5 mV dec-1）均较低，因此氧进化反应（OER）性能优越。研究表明，在各组分的共同作用下，电催化氧进化的性能大大增强。

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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