Structure, morphology and phase composition of anodized titanium dioxide nanotubes loaded with Pt and Pd

Q4 Chemistry

Voprosy Khimii i Khimicheskoi Tekhnologii Pub Date : 2023-10-01 DOI:10.32434/0321-4095-2023-150-5-43-49

V. Knysh, O. Shmychkova, T. Luk'yanenko, A. Velichenko

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引用次数: 0

Abstract

This study focuses on titanium dioxide (TiO2) nanotubes on solid substrates, which may find wide applications as photocatalysts and catalysts. To address the need for more stable and active electrocatalysts with reduced noble metal content, the study explores TinO2n–1 suboxides as promising substrates for the electrocatalysts. Notably, the addition of water in the fluoride-containing electrolyte plays a critical role in shaping the morphology of TiO2 nanotubes, leading to the formation of ordered structures under specific water concentration conditions. The study also examines the effects of platinum and palladium deposition on TiO2 nanotubes, enhancing their surface crystallinity and structural arrangement. The presence of an unidentified phase, possibly titanium hydride, is observed in certain samples. The findings highlight the potential of TiO2 nanotubes as efficient electrocatalysts and the influence of water content and substrate choice on their properties, opening up new avenues for advanced applications in various fields.

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负载Pt和Pd的阳极氧化二氧化钛纳米管的结构、形貌和相组成

二氧化钛(TiO2)纳米管作为光催化剂和催化剂具有广泛的应用前景。为了满足对更稳定、活性更强、贵金属含量更低的电催化剂的需求，本研究探索了TinO2n-1亚氧化物作为电催化剂的底物。值得注意的是，在含氟电解质中加入水对TiO2纳米管的形态形成起着至关重要的作用，在特定的水浓度条件下，TiO2纳米管可以形成有序的结构。该研究还考察了铂和钯沉积对TiO2纳米管的影响，增强了其表面结晶度和结构排列。在某些样品中观察到一种不明相的存在，可能是氢化钛。这些发现突出了TiO2纳米管作为高效电催化剂的潜力，以及水含量和底物选择对其性能的影响，为其在各个领域的先进应用开辟了新的途径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Voprosy Khimii i Khimicheskoi Tekhnologii Chemical Engineering-Chemical Engineering (all)

CiteScore

0.90

自引率

0.00%

发文量

期刊介绍： Voprosy Khimii i Khimicheskoi Tekhnologii (Issues of Chemistry and Chemical Technology) is published bimonthly by the Ukrainian State University of Chemical Technology and accepts Ukrainian- or English language high-quality original articles and reviews concerning various fields of research in chemistry and chemical engineering. Our unusual title “Voprosy khimii i khimicheskoi tekhnologii” originates from the transliterated initial Russian title “Issues of Chemistry and Chemical Technology“. The fact of the matter is that Voprosy khimii i khimicheskoi tekhnologii was founded in 1965 as a scientific journal mainly for Russian-reading and Russian-speaking readership when «the Iron Curtain» existed. Since 1991, after Ukraine declared its independence, our Journal began to publish the articles in Ukrainian and English. Multilingualism is our established tradition. We remember and cherish our traditions, but we follow the latest trends in modern science. Papers that are multidisciplinary or address new or emerging areas of chemistry and chemical engineering are particularly encouraged. Thus, the scope is dynamic. It includes but is not limited to the traditional areas of general, inorganic, organic, analytical, physical chemistry and electrochemistry, as well as all conventional areas of chemical engineering (chemistry of high molecular compounds, technology of inorganic and organic substances, processing of combustible minerals, chemical technology of silicates, processes and apparatus of chemical productions, etc.). The Journal publishes papers dealing with newer interdisciplinary areas such as materials science, nano-science, catalysis, computational and theoretical chemistry, surface phenomenon and colloidal systems, environmental chemistry, green chemistry.