Zinc orthostannate nanorods assembled into coral-like clusters with improved acetone gas sensitivity and selectivity

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-09-18 DOI:10.1016/j.matlet.2025.139529

Chaofu Zhang , Liji Su , Changyun Li , Lei Xu , Heliang Fan , Hanzhuo Zhang

引用次数: 0

Abstract

As an n-type semiconductor, zinc orthostannate (Zn₂SnO₄) has been studied for years while its morphology modulation and semiconductor characteristics need further exploring. In this paper, Zn₂SnO₄ nanorods with random orientations and self-assembly into coral-like clusters were synthesized by hydrothermal processes for gas sensing investigations. High response values of 58.9, rapid response time of 11 s and improved sensitivity to 100 ppm acetone were revealed at optimal working temperature of 200 °C, which might be related with oordination effects between carbonyl oxygen in acetone and more Sn⁴⁺/Zn²⁺ active centers in as-prepared Zn₂SnO₄.

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正锡酸锌纳米棒组装成珊瑚状簇，具有提高的丙酮气体敏感性和选择性

正锡酸锌（Zn2SnO4）作为一种n型半导体材料，其形貌调制和半导体特性有待进一步研究。本文采用水热法合成了具有随机取向和自组装成类似珊瑚簇的Zn2SnO4纳米棒，用于气敏研究。在最佳工作温度为200℃时，反应值高达58.9，反应时间为11 s，对100 ppm丙酮的灵敏度提高，这可能与丙酮中的羰基氧与制备的Zn2SnO4中Sn4+/Zn2+活性中心之间的配位作用有关。

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

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive