电化学修饰接枝一种新型的端乙氧基金刚石表面

IF 5.1 3区材料科学 Q2 MATERIALS SCIENCE, COATINGS & FILMS

Diamond and Related Materials Pub Date : 2025-10-04 DOI:10.1016/j.diamond.2025.112922

F.N. Li , Y.Y. Ma , J.W. Zhang , H.X. Wang

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引用次数: 0

摘要

本研究提出了一种新的电化学方法，通过高压乙醇离子处理来制备环氧终止型金刚石（EtO-diamond）表面。利用x射线光电子能谱（XPS）系统表征了电压依赖性表面化学，揭示了两步接枝机制：乙氧基自由基吸氢，然后形成共价键，由CO和CHx峰证明。施加的电压严格控制表面组成，高压诱导的竞争途径（例如，sp2碳的形成）。相对氢离子处理增强了CHx基团，避免了sp2碳的形成，表明氧化最小。

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A novel ethoxy terminated diamond surface grafted via electrochemical modification

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A novel ethoxy terminated diamond surface grafted via electrochemical modification

This study presents a novel electrochemical approach for fabricating ethoxy terminated diamond (EtO-diamond) surfaces through high-voltage ethoxide ion treatment in ethanol. Using X-ray photoelectron spectroscopy (XPS), we systematically characterized the voltage dependent surface chemistry, revealing a two-step grafting mechanism: hydrogen abstraction by ethoxy radicals followed by covalent bond formation, as evidenced by CO and CH_x peaks. The applied voltage critically governs surface composition, high voltages induced competing pathways (e.g., sp² carbon formation). Comparative hydrogen ion treatment enhanced CH_x groups and avoided sp² carbon formation, indicating minimal oxidation.

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来源期刊

Diamond and Related Materials 工程技术-材料科学：综合

CiteScore

6.00

自引率

14.60%

发文量

702

审稿时长

2.1 months

期刊介绍： DRM is a leading international journal that publishes new fundamental and applied research on all forms of diamond, the integration of diamond with other advanced materials and development of technologies exploiting diamond. The synthesis, characterization and processing of single crystal diamond, polycrystalline films, nanodiamond powders and heterostructures with other advanced materials are encouraged topics for technical and review articles. In addition to diamond, the journal publishes manuscripts on the synthesis, characterization and application of other related materials including diamond-like carbons, carbon nanotubes, graphene, and boron and carbon nitrides. Articles are sought on the chemical functionalization of diamond and related materials as well as their use in electrochemistry, energy storage and conversion, chemical and biological sensing, imaging, thermal management, photonic and quantum applications, electron emission and electronic devices. The International Conference on Diamond and Carbon Materials has evolved into the largest and most well attended forum in the field of diamond, providing a forum to showcase the latest results in the science and technology of diamond and other carbon materials such as carbon nanotubes, graphene, and diamond-like carbon. Run annually in association with Diamond and Related Materials the conference provides junior and established researchers the opportunity to exchange the latest results ranging from fundamental physical and chemical concepts to applied research focusing on the next generation carbon-based devices.