Cobalt Nanoparticle-Decorated RuSe2 Nanorods: A Chemical Vapor Deposition Approach for Efficient Electrolytic Hydrogen Evolution

IF 3.2 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Crystal Growth & Design Pub Date : 2024-06-13 DOI:10.1021/acs.cgd.4c00451

Daba Deme Megersa, Gutema Teshome Gudena, Youngho Kim and Hak Ki Yu*,

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Abstract

Highly stable cobalt nanoparticle-decorated ruthenium diselenide nanorods were grown on carbon paper, resulting in the Co-RuSe₂/C structure which was directly utilized as a catalyst for the hydrogen evolution reaction (HER) in an alkaline medium. A reactive chemical vapor deposition (CVD) process with a low temperature, low pressure, and a short reaction time was employed to synthesize the Co-RuSe₂/C catalyst. Structural analysis via high-resolution transmission electron microscopy (HRTEM) and elemental distribution using scanning transmission electron microscopy energy-dispersive X-ray spectroscopy (STEM-EDS) confirmed the uniform distribution of cobalt nanoparticles (Co NPs) on densely grown RuSe₂ nanorods (NRs). Surface studies using X-ray photoelectron spectroscopy (XPS) revealed the presence of electron-deficient Ru and Se species indicating successful surface electronic structure modification of the Co-RuSe₂/C structure. Furthermore, the HER performance of the Co-RuSe₂/C catalysts was evaluated in 1 M KOH, demonstrating an excellent performance sustained over an extended period.

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钴纳米粒子装饰的 RuSe2 纳米棒：用于高效电解氢气生成的化学气相沉积方法

在碳纸上生长出高度稳定的钴纳米粒子装饰二硒化钌纳米棒，形成了 Co-RuSe2/C 结构，可直接用作碱性介质中氢气进化反应（HER）的催化剂。合成 Co-RuSe2/C 催化剂采用了低温、低压、反应时间短的反应性化学气相沉积（CVD）工艺。通过高分辨率透射电子显微镜（HRTEM）进行的结构分析和通过扫描透射电子显微镜能量色散 X 射线光谱（STEM-EDS）进行的元素分布分析证实，钴纳米颗粒（Co NPs）均匀分布在密集生长的 RuSe2 纳米棒（NRs）上。利用 X 射线光电子能谱 (XPS) 进行的表面研究显示，存在缺电子的 Ru 和 Se 物种，这表明 Co-RuSe2/C 结构的表面电子结构修饰取得了成功。此外，还评估了 Co-RuSe2/C 催化剂在 1 M KOH 中的 HER 性能，结果表明这种催化剂在较长时间内都能保持优异的性能。

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来源期刊

Crystal Growth & Design 化学-材料科学：综合

CiteScore

6.30

自引率

10.50%

发文量

650

审稿时长

1.9 months

期刊介绍： The aim of Crystal Growth & Design is to stimulate crossfertilization of knowledge among scientists and engineers working in the fields of crystal growth, crystal engineering, and the industrial application of crystalline materials. Crystal Growth & Design publishes theoretical and experimental studies of the physical, chemical, and biological phenomena and processes related to the design, growth, and application of crystalline materials. Synergistic approaches originating from different disciplines and technologies and integrating the fields of crystal growth, crystal engineering, intermolecular interactions, and industrial application are encouraged.