Hydrothermally synthesized Ag2Te on metallic 2D templates

IF 2.4 4区物理与天体物理 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Current Applied Physics Pub Date : 2024-07-23 DOI:10.1016/j.cap.2024.07.010

Ha Heun Lee , Minji Bak , Hyo Gyeong Kim , Eunji Lim , Sunwoo Kim , Woohyun Cho , Shibo Xi , Heejun Yang , Woo-Jae Kim , Suyeon Cho

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Abstract

Silver telluride, Ag₂Te, was synthesized on various 2D templates of carbon nanotubes (CNT) and transition-metal dichalcogenides (WTe₂ and VTe₂) via hydrothermal synthesis. X-ray diffraction (XRD) and Raman spectroscopy revealed that Ag₂Te was synthesized on the 2D templates under optimal synthesis conditions. Differential scanning calorimetry (DSC) confirmed that the structural phase transition of Ag₂Te underwent endothermic and exothermic reactions at approximately 410 and 425 K, respectively. Among various metallic templates, a large amount of Ag₂Te has been synthesized on strongly acidic CNT. X-ray absorption near-edge structure (XANES) revealed that the chemical state of the metallic support influenced the electronic structure of the as-grown Ag₂Te on the metallic supports. Our findings demonstrated that the hybrid 2D catalysts with an appropriate 2D metallic template can be a promising strategy for achieving efficient catalysis.

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在金属二维模板上水热合成 Ag2Te

通过水热合成法，在碳纳米管（CNT）和过渡金属二卤化物（WTe 和 VTe）的各种二维模板上合成了碲化银（AgTe）。X 射线衍射（XRD）和拉曼光谱显示，AgTe 是在最佳合成条件下在二维模板上合成的。差示扫描量热法（DSC）证实，AgTe 的结构相变分别在约 410 和 425 K 发生了内热和放热反应。在各种金属模板中，在强酸性 CNT 上合成了大量 AgTe。X 射线吸收近边结构（XANES）显示，金属支架的化学状态影响了金属支架上生长的 AgTe 的电子结构。我们的研究结果表明，采用适当的二维金属模板的混合二维催化剂是实现高效催化的一种很有前途的策略。

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来源期刊

Current Applied Physics 物理-材料科学：综合

CiteScore

4.80

自引率

0.00%

发文量

213

审稿时长

33 days

期刊介绍： Current Applied Physics (Curr. Appl. Phys.) is a monthly published international journal covering all the fields of applied science investigating the physics of the advanced materials for future applications. Other areas covered: Experimental and theoretical aspects of advanced materials and devices dealing with synthesis or structural chemistry, physical and electronic properties, photonics, engineering applications, and uniquely pertinent measurement or analytical techniques. Current Applied Physics, published since 2001, covers physics, chemistry and materials science, including bio-materials, with their engineering aspects. It is a truly interdisciplinary journal opening a forum for scientists of all related fields, a unique point of the journal discriminating it from other worldwide and/or Pacific Rim applied physics journals. Regular research papers, letters and review articles with contents meeting the scope of the journal will be considered for publication after peer review. The Journal is owned by the Korean Physical Society.