High performance tube sensor based on PANI/Eu3+ nanofiber for low-volume NH3 detection

Zhang, Wenqian; Li, Guishun; She, Changkun; liu, Aiyun; Cheng, Jianing; Li, Hongkai; Liu, Shaohua; Jing, Chengbin; Cheng, Ya; Chu, Junhao

doi:10.1016/j.aca.2019.09.049

Cited by 23 publications

(23 citation statements)

References 36 publications

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“…Another commonly used coating method is spin-coating, where revolutions per minute (RPM) is pivotal in producing the desired film thickness and morphology [ 29 , 32 , 109 , 110 , 111 ]. However, some less commonly used methods, such as spraying [ 112 ], inkjet printing [ 79 ], in situ oxidative polymerization [ 113 ] and layer-by-layer self-assembly [ 114 ] have also been reported, some of which are illustrated in Figure 1 .…”

Section: Deposition Methodsmentioning

confidence: 99%

A Review on Advanced Sensing Materials for Agricultural Gas Sensors

Love

Nazemi

El-Masri

et al. 2021

Sensors

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This work is a comprehensive review of sensing materials, which interact with several target gases pertinent to agricultural monitoring applications. Sensing materials which interact with carbon dioxide, water vapor (relative humidity), hydrogen sulfide, ethylene and ethanol are the focus of this work. Performance characteristics such as dynamic range, recovery time, operating temperature, long-term stability and method of deposition are discussed to determine the commercial viability of the sensing materials considered in this work. In addition to the sensing materials, deposition methods are considered to obtain the desired sensing material thickness based on the sensor’s mechanism of operation. Various material classes including metal oxides, conductive polymers and carbon allotropes are included in this review. By implementing multiple sensing materials to detect a single target analyte, the issue of selectivity due to cross sensitivity can be mitigated. For this reason, where possible, it is desirable to utilize more than one sensing material to monitor a single target gas. Among those considered in this work, it is observed that PEDOT PSS/graphene and TiO2-coated g-C3N4 NS are best suited for CO2 detection, given their wide dynamic range and modest operating temperature. To monitor the presence of ethylene, BMIM-NTf2, SWCNTs and PtTiO2 offer a dynamic range most suitable for the application and require no active heating. Due to the wide dynamic range offered by SiO2/Si nanowires, this material is best suited for the detection of ethanol; a gas artificially introduced to prolong the shelf life of the harvested crop. Finally, among all other sensing materials investigated, it observed that both SWCNTs and CNTs/SnO2/CuO are most suitable for H2S detection in the given application.

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Section: Deposition Methodsmentioning

confidence: 99%

A Review on Advanced Sensing Materials for Agricultural Gas Sensors

Love

Nazemi

El-Masri

et al. 2021

Sensors

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“…4). 39 Sensors based on polymers or metal oxides are very versatile and their Fig. 3 Resistance and sensor response (inset) of a Si-doped MoO 3 sensor upon expose to 1000, 700, and 400 ppb ammonia.…”

Section: Sensor Materialsmentioning

confidence: 99%

Ammonia breath analysis

Lefferts

Castell

2022

Sens. Diagn.

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“…The rare earth elements (i.e., lanthanides) could be considered as active cocatalysts and dopants for the improvement of new substances with appealing gas-sensing applications because of their 7f orbitals awarding special electronic properties [17][18][19][20][21][22][23][24][25]. Zhong et al [17] fabricated Eu 2 O 3 -doped In 2 O 3 using the sol-gel method for detecting H 2 S gas.…”

Section: Introductionmentioning

confidence: 99%

“…Er et al [21] fabricated rare earth metals (Y, Ru and Cs)-doped ZnO thin films for sensing NH 3 gas at room temperature. Jing et al [22] fabricated a PANI/Eu 3+ nanofiber for sensing NH 3 gas. Costello et al [23] fabricated Eu 3+ ion-doped ZrO 2 for sensing volatile organic compounds (VOCs).…”

Section: Introductionmentioning

confidence: 99%

Electrical and Humidity-Sensing Properties of EuCl2, Eu2O3 and EuCl2/Eu2O3 Blend Films

Choy

2021

Chemosensors

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Impedance-type humidity sensors based on EuCl2, Eu2O3 and EuCl2/Eu2O3 blend films were fabricated. The electrical properties of the pure EuCl2 and Eu2O3 films and EuCl2/Eu2O3 blend film that was blended with different amounts of EuCl2 were investigated as functions of relative humidity. The influences of the EuCl2 to the humidity-sensing properties (sensitivity and linearity) of the EuCl2/Eu2O3 blend film were thus elucidated. The impedance-type humidity sensor that was made of a 7 wt% EuCl2/Eu2O3 blend film exhibited the highest sensitivity, best linearity, a small hysteresis, a fast response time, a small temperature coefficient and long-term stability. The complex impedance plots were used to elucidate the role of ions in the humidity-sensing behavior of the EuCl2/Eu2O3 blend film.

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High performance tube sensor based on PANI/Eu3+ nanofiber for low-volume NH3 detection

Cited by 23 publications

References 36 publications

A Review on Advanced Sensing Materials for Agricultural Gas Sensors

A Review on Advanced Sensing Materials for Agricultural Gas Sensors

Ammonia breath analysis

Electrical and Humidity-Sensing Properties of EuCl2, Eu2O3 and EuCl2/Eu2O3 Blend Films

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