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首页> 外文期刊>Advanced Sustainable Systems >MoS2 Nanosheets Uniformly Anchored on NiMoO4 Nanorods, a Highly Active Hierarchical Nanostructure Catalyst for Oxygen Evolution Reaction and Pseudo‐Capacitors
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MoS2 Nanosheets Uniformly Anchored on NiMoO4 Nanorods, a Highly Active Hierarchical Nanostructure Catalyst for Oxygen Evolution Reaction and Pseudo‐Capacitors

机译：MoS2纳米片均匀锚定在NiMoO4纳米棒上，NiMoO4纳米棒是一种用于析氧反应的高活性多级结构纳米结构催化剂和赝电容器

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Abstract Hierarchical nanostructures have attracted considerable research attention due to their applications in the catalysis field. Herein, we design a versatile hierarchical nanostructure composed of NiMoO4 nanorods surrounded by active MoS2 nanosheets on an interconnected nickel foam substrate. The as‐prepared nanostructure exhibits excellent oxygen evolution reaction performance, producing a current density of 10 mA cm−2 at an overpotential of 90 mV, in comparison with 220 mV necessary to reach a similar current density for NiMoO4. This behavior originates from the structural/morphological properties of the MoS2 nanosheets, which present numerous surface‐active sites and allow good contact with the electrolyte. Besides, the structures can effectively store charges, due to their unique branched network providing accessible active surface area, which facilitates intermediates adsorptions. Particularly, NiMoO4/MoS2 shows a charge capacity of 358 mAhg−1 at a current of 0.5 A g−1 (230 mAhg−1 for NiMoO4), thus suggesting promising applications for charge‐storing devices.
机译：抽象层次纳米结构有由于引起了相当多的研究的关注他们在催化领域的应用。在此,我们设计一个通用的层次纳米结构由NiMoO4纳米棒活跃的二硫化钼nanosheets包围在一个相互关联的泡沫镍衬底。作为纳米结构表现出优秀的准备氧进化反应性能,生产马10厘米−2的电流密度90 mV的过电压,相比,220 mV需要达到一个类似的电流密度NiMoO4。结构/二硫化钼的形态属性nanosheets,目前大量的表面活性网站,让良好的接触电解液。有效的存储费用,由于其独特的分支网络提供访问活动表面积,促进中间体吸附。电荷容量358 mAhg−1电流为0.5g−1 (230 mAhg NiMoO4−1),因此建议应用前景为电荷的存储设备。

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