非晶mosx /结晶mnwo4异质结中丙酮的检测

IF 6.3 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Journal of Alloys and Compounds Pub Date : 2025-07-17 DOI:10.1016/j.jallcom.2025.182311

Wei Wang, Heng Guan, Yizhuo Fan, Jian Fang, Duo Sun, Yu Chen, Shengping Ruan

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引用次数: 0

摘要

钨酸锰（MnWO4）是一种新型的催化半导体金属氧化物，在丙酮传感方面具有未开发的应用潜力。非晶异质结的构建为开发新型高性能气敏材料提供了广阔的前景。本文构建了一种无定形mosx /crystalline-MnWO4复合材料，并对其丙酮传感性能进行了研究。由于丰富的表面悬垂键和无定形硫化钼的缺陷作为气体吸附和反应位点，MoSx/MnWO4材料具有更丰富的表面吸附氧和丙酮传感性能。结合p-n异质结的载流子调节效应，降低了MoSx/MnWO4复合材料的最佳工作温度（120℃），提高了对丙酮的响应，达到10.54 (100 ppm)，约为纯MnWO4材料的4.5倍。该工作对非晶MoSx在气体传感领域的应用和高性能丙酮传感器的构建具有参考意义。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Detection of acetone from amorphous-MoSx/crystalline-MnWO4 heterojunction

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Detection of acetone from amorphous-MoSx/crystalline-MnWO4 heterojunction

Manganese tungstate (MnWO₄) is a novel catalytic semiconductor metal oxide with untapped potential for acetone-sensing applications. The construction of amorphous-crystalline heterojunctions shows promising prospects for developing new high-performance gas-sensitive materials. Here, an amorphous-MoS_x/crystalline-MnWO₄ composite material was constructed, and the acetone-sensing properties were explored. Due to the abundant surface hanging bonds and defects of amorphous molybdenum sulfide as gas adsorption and reaction sites, the MoS_x/MnWO₄ material has a richer surface adsorption oxygen and acetone sensing properties. Combined with carrier regulation effect of the p-n heterojunction, the optimum operating temperature of the MoS_x/MnWO₄ composite is reduced (120 °C) and the response towards acetone is improved, reaching a value of 10.54 (100 ppm), which is approximately 4.5 times higher than that of the pure MnWO₄ material. This work is of reference significance for the application of amorphous MoS_x in the field of gas sensing and the construction of high-performance acetone sensors.

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来源期刊

Journal of Alloys and Compounds 工程技术-材料科学：综合

CiteScore

11.10

自引率

14.50%

发文量

5146

审稿时长

67 days

期刊介绍： The Journal of Alloys and Compounds is intended to serve as an international medium for the publication of work on solid materials comprising compounds as well as alloys. Its great strength lies in the diversity of discipline which it encompasses, drawing together results from materials science, solid-state chemistry and physics.