p型铜钛混合氧化物的氢气感测性能：元素组成和退火温度的影响

IF 8.1 2区工程技术 Q1 CHEMISTRY, PHYSICAL

International Journal of Hydrogen Energy Pub Date : 2025-06-06 DOI:10.1016/j.ijhydene.2025.06.017

Ewa Mańkowska, Michał Mazur

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引用次数: 0

摘要

在这项工作中，提出了铜和钛氧化物（CuTiOx）的混合物薄膜作为p型氢传感材料。在磁控溅射沉积后，薄膜在三种温度下退火，最高温度为300℃。考察了后处理改性对合金形貌和组织的影响，以及不同铜氧化物与钛氧化物配比对合金形貌和组织的影响。结果表明，与铜氧化物或钛氧化物相比，CuTiOx对氢的反应更好。薄膜在300°C退火后获得了最高的传感器响应（超过11）。为了建立气敏机制，研究了氢与表面的相互作用。氢将铜氧化物和钛氧化物还原为Cu2O和Ti2O3。CuTiOx的传感机理受氧吸附和氢反应的影响，也受传感材料还原的影响。

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Hydrogen gas sensing performance of p-type copper and titanium mixed oxides: influence of the elemental composition and the annealing temperature

In this work, mixtures of copper and titanium oxides (CuTiOx) thin films are proposed as p-type hydrogen sensing material. After the deposition by magnetron sputtering, thin films were annealed at three temperatures, up to 300 °C. The influence of post-process modification on morphology and microstructure and the effect of various ratio of copper oxides to titanium oxides was investigated. It was found that for CuTiOx exhibited an improved response to hydrogen in comparison to copper oxides or titanium oxides. The highest sensor responses (over 11) were obtained after annealing at 300 °C for thin film. To create a gas sensing mechanism, the interaction of hydrogen with the surface was investigated. Hydrogen reduces copper oxides and titanium oxides to Cu₂O and Ti₂O₃. The sensing mechanism of CuTiOx is influenced by the adsorption of oxygen and reaction with hydrogen and also by the reduction of the sensing material.

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来源期刊

International Journal of Hydrogen Energy 工程技术-环境科学

CiteScore

13.50

自引率

25.00%

发文量

3502

审稿时长

60 days

期刊介绍： The objective of the International Journal of Hydrogen Energy is to facilitate the exchange of new ideas, technological advancements, and research findings in the field of Hydrogen Energy among scientists and engineers worldwide. This journal showcases original research, both analytical and experimental, covering various aspects of Hydrogen Energy. These include production, storage, transmission, utilization, enabling technologies, environmental impact, economic considerations, and global perspectives on hydrogen and its carriers such as NH3, CH4, alcohols, etc. The utilization aspect encompasses various methods such as thermochemical (combustion), photochemical, electrochemical (fuel cells), and nuclear conversion of hydrogen, hydrogen isotopes, and hydrogen carriers into thermal, mechanical, and electrical energies. The applications of these energies can be found in transportation (including aerospace), industrial, commercial, and residential sectors.