Ammonia sensor based on flower-like <i>h</i>-MoO<sub>3</sub> nanorods@graphene

CHANG Yu; ZHANG Jianan; LIU Hailong; Ivan S.Babichuk; YANG Jian

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Ammonia sensor based on flower-like h-MoO₃ nanorods@graphene

Design & Manufacture | 更新时间：2026-03-01

- Ammonia sensor based on flower-like h-MoO₃ nanorods@graphene
- Vol. 45, Issue 2, Pages: 123-127(2026)
- 作者机构：
  
  五邑大学机械与自动化工程学院,广东,江门,529000
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP212;TB332
- Published：2026
- 稿件说明：
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CHANG Yu, ZHANG Jianan, LIU Hailong, et al. Ammonia sensor based on flower-like h-MoO₃ nanorods@graphene[J]. 2026, 45(2): 123-127.
DOI：

CHANG Yu, ZHANG Jianan, LIU Hailong, et al. Ammonia sensor based on flower-like h-MoO₃ nanorods@graphene[J]. 2026, 45(2): 123-127. DOI：

摘要

以钼酸铵溶液为原料，采用化学浴沉积法制备了花状

-MoO

纳米棒，通过扫描电子显微镜(SEM)和拉曼光谱对产物的表面形貌及晶相结构进行表征，探讨了溶液浓度对

-MoO

表面形貌和晶相结构的影响，并对其生成机理进行了研究。随后将

-MoO

纳米棒沉积在化学气相沉积（CVD）生长的大面积石墨烯薄膜上制备成氨气(NH

)传感器，并通过自搭建的测试平台对

-MoO

@石墨烯传感器的气敏性能进行测试。结果表明:该传感器的灵敏度要明显优于纯石墨烯基氨气传感器，在室温下，对低至1×10

-6

氨气有较强的响应，对(1~30)×10

-6

浓度范围内的氨气均呈现良好的重复性。

Abstract

The flower-like

-MoO

nanorods are prepared by chemical bath deposition method from ammonium molybdate solution

the surface morphology and crystal structure of the products are characterized using scanning electron microscope(SEM)and Raman spectroscopy

the effects of the solution concentration on the surface morphology and crystal structure of

-MoO

are then discussed

the formation mechanism is studied.Subsequently

an ammonia(NH

)sensor is prepared by the deposition of

-MoO

nan

orods on the large-area chemical vapor deposition(CVD)-grown graphene film

and the gas-sensitive performance of the prepared

-MoO

@graphene sensor is measured by the customized test platform.The results indicate that the sensitivity of this sensor is significantly better than the pure graphene-based ammonia sensor.It shows robust response to ammonia concentrations as low as 1×10

-6

at room temperature

and it shows good repeatability ammonia concentration range of (1~30)×10

-6

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Ammonia sensor based on flower-like h-MoO3 nanorods@graphene

DOI：

摘要

Abstract

关键词

Keywords

references

Ammonia sensor based on flower-like h-MoO₃ nanorods@graphene