降低边缘硫密度，触发二硫化钼纳米阵列生长成分支，促进其析氢反应

IF 9.5 2区材料科学 Q1 CHEMISTRY, PHYSICAL

Journal of Materials Chemistry A Pub Date : 2025-10-07 DOI:10.1039/d5ta05873b

Ruifeng Qi, Xiaohua Qiao, Jinhong Hou, Tianyu Zhang, Junqi Liu, Qin Liu, Feng Gao, Qingsong Huang

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引用次数: 0

摘要

利用动态磁场，可以在1分钟内将二硫化钼（MoS2）纳米阵列种植在特殊的衬底上。高质量的二硫化钼纳米阵列垂直竖立在衬底上。减小S/Mo比可以增加MoS2纳米阵列的活性边。同时，氢蚀刻有利于生长过程中MoS2边缘的倍增。由此获得的MoS2纳米阵列表现出优异的HER性能，表明在过电位（η）为238 mV时，可以获得100 mA cm-2的几何催化电流密度。此外，在100 mA cm-2下进行24小时的计时安培（CP）测试后，催化剂电极的结构可以保持稳定。

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Lowering sulfur density in margin to trigger Molybdenum disulfide nanoarray growth into branches for boosting their hydrogen evolution reaction

Planting molybdenum disulfide (MoS₂) nanoarrays in special substrate can be realized in 1 minute by dynamic magnetic fields. The high-quality MoS₂ nanoarrays were vertically standing on the substrates. Decreasing the S/Mo ratio can proliferate the active edges of MoS₂ nanoarrays. Meanwhile, hydrogen etching benefits multiplying MoS₂ edges during the growth process. Thus-obtained MoS₂ nanoarrays exhibited excellent HER performance, suggesting a geometric catalytic current density of 100 mA cm^-2 at overpotential (η) of 238 mV can be available. In addition, the structure of the catalyst electrode can be kept stable after a 24-hour chronoamperometric (CP) test at 100 mA cm^-2.

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来源期刊

Journal of Materials Chemistry A CHEMISTRY, PHYSICAL-ENERGY & FUELS

CiteScore

19.50

自引率

5.00%

发文量

1892

审稿时长

1.5 months

期刊介绍： The Journal of Materials Chemistry A, B & C covers a wide range of high-quality studies in the field of materials chemistry, with each section focusing on specific applications of the materials studied. Journal of Materials Chemistry A emphasizes applications in energy and sustainability, including topics such as artificial photosynthesis, batteries, and fuel cells. Journal of Materials Chemistry B focuses on applications in biology and medicine, while Journal of Materials Chemistry C covers applications in optical, magnetic, and electronic devices. Example topic areas within the scope of Journal of Materials Chemistry A include catalysis, green/sustainable materials, sensors, and water treatment, among others.