High performance mixed-potential type NO2 sensors based on three-dimensional TPB and Co3V2O8 sensing electrode

Liu, Fangmeng; Guan, Yu; Dai, Mingjun; Zhang, Han; Guan, Yingzhou; Sun, Ruize; Liang, Xishuang; Sun, Peng; Liu, Fengmin

doi:10.1016/j.snb.2015.04.048

Cited by 40 publications

(12 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There are numerous classes of cobalt vanadates such as Co 3 V 2 O 8 [16,17], Co 2 V 2 O 7 [18,19] and CoV 2 O 6 [20,21]. Many inquiries have been carried out on the synthesis routes of cobalt vanadates including precipitation [22], solid-state [23], sol-gel [24], hydrothermal [25,26] and electrospinning [27]. These category of vanadates have wide applications in the fields of Sensing electrode [24], pseudocapacitive electrode material or electrochemical capacitive properties [28], electrocatalytic oxygen evolution reaction [27], electrodes for asymmetric supercapacitors [29], lithium ion batteries [30] and water oxidation [31].…”

mentioning

confidence: 99%

“…Many inquiries have been carried out on the synthesis routes of cobalt vanadates including precipitation [22], solid-state [23], sol-gel [24], hydrothermal [25,26] and electrospinning [27]. These category of vanadates have wide applications in the fields of Sensing electrode [24], pseudocapacitive electrode material or electrochemical capacitive properties [28], electrocatalytic oxygen evolution reaction [27], electrodes for asymmetric supercapacitors [29], lithium ion batteries [30] and water oxidation [31]. Herein, for the first time three types of cobalt vanadate nanostructures were synthesized by simple, green, low-cost, free solvent and reproducible solid-state method in presence of Schiff base ligand as a capping agent.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Size controllable synthesis of cobalt vanadate nanostructures with enhanced photocatalytic activity for the degradation of organic dyes

Ghiyasiyan-Arani

Masjedi-Arani

Salavati‐Niasari

2016

Journal of Molecular Catalysis A: Chemical

100

View full text Add to dashboard Cite

Different types of cobalt vanadate nanostructures such as Co 3 V 2 O 8 , Co 2 V 2 O 7 and CoV 2 O 6 have been successfully prepared via a simple solid-state method. For the first time, cobalt vanadate nanostructures were synthesized via Schiff-base ligand and vanadyl sulfate as a capping agent and vanadium source, respectively. The effect of a Schiff-base ligand (N,N-Bis (salicylaldehyde) ethylenediamine = H 2 salen) as a capping agent, molar ratio of Co: H 2 salen and Co:V on type of products, morphology and size of cobalt vanadate nanoparticles was investigated to reach optimum condition. The as-prepared nanostructures were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmittance electron microscopy (TEM), Fourier transform infrared (FT-IR) spectra, energy dispersive X-ray microanalysis (EDX) and ultraviolet-visible (UV-Vis) spectroscopy. This work is the first study on photocatalytic activity of cobalt vanadate nanostructures in different conditions. The influence of different parameters such as type of cobalt vanadate nanostructures, type of dye, size of particles and nanostructures dosage as a catalyst on photocatalytic activity of samples were studied.

show abstract

mentioning

confidence: 99%

mentioning

confidence: 99%

Size controllable synthesis of cobalt vanadate nanostructures with enhanced photocatalytic activity for the degradation of organic dyes

Ghiyasiyan-Arani

Masjedi-Arani

Salavati‐Niasari

2016

Journal of Molecular Catalysis A: Chemical

100

View full text Add to dashboard Cite

show abstract

“…Another new type of composite oxide Co 3 V 2 O 8 mixed with YSZ particles was used as the NO 2 gases sensing material for an MPT sensor. With the mixture ratio between Co 3 V 2 O 8 mixed and YSZ particles configured at 60:40, the largest sensitivity of 81 mV/decade for NO 2 was achieved in the range of 10–400 ppm at 700 °C [19]. To further increase MPT sensors’ sensitivity, various techniques have been applied to increase the sensing material’s area, including etching the YSZ substrate surface using the hydrofluoric acid and template method with a self-assembled polystyrene sphere [20,21].…”

Section: Introductionmentioning

confidence: 99%

Flexible Mixed-Potential-Type (MPT) NO2 Sensor Based on An Ultra-Thin Ceramic Film

You

Cui

2017

Sensors

View full text Add to dashboard Cite

A novel flexible mixed-potential-type (MPT) sensor was designed and fabricated for NO2 detection from 0 to 500 ppm at 200 °C. An ultra-thin Y2O3-doped ZrO2 (YSZ) ceramic film 20 µm thick was sandwiched between a heating electrode and reference/sensing electrodes. The heating electrode was fabricated by a conventional lift-off process, while the porous reference and the sensing electrodes were fabricated by a two-step patterning method using shadow masks. The sensor’s sensitivity is achieved as 58.4 mV/decade at the working temperature of 200 °C, as well as a detection limit of 26.7 ppm and small response time of less than 10 s at 200 ppm. Additionally, the flexible MPT sensor demonstrates superior mechanical stability after bending over 50 times due to the mechanical stability of the YSZ ceramic film. This simply structured, but highly reliable flexible MPT NO2 sensor may lead to wide application in the automobile industry for vehicle emission systems to reduce NO2 emissions and improve fuel efficiency.

show abstract

“…Among all of these NO x sensors announced, − yttria-stabilized zirconia (YSZ) based gas sensor received more attention due to its reliable performance in harsh conditions (e.g., high temperature). − Besides, relatively high selectivity and sensitivity to NO and/or NO 2 are witnessed for this type of sensor by utilizing diverse NO x electroactive metal oxides as the sensing electrode (SE). , Nevertheless, in comparison with the response behavior to NO, YSZ-based gas sensor is relatively more sensitive to NO 2 . − Meanwhile, an opposite response signal is typically given by this kind of sensor that is operated at potentiometric mode. ,, For instance, a positive response value to NO 2 (electrochemical reduction reaction) is usually given by the YSZ-based sensor, while a negative response value can be frequently found when sensing NO (electrochemical oxidation reaction). As a result, in most of the cases, the total concentration of NO x cannot be simultaneously accessed by estimating from the response signal generated by the sensor.…”

mentioning

confidence: 99%

“…15−18 Meanwhile, an opposite response signal is typically given by this kind of sensor that is operated at potentiometric mode. 13,15,19 For instance, a positive response value to NO 2 (electrochemical reduction reaction) is usually given by the YSZ-based sensor, while a negative response value can be frequently found when sensing NO (electrochemical oxidation reaction). As a result, in most of the cases, the total concentration of NO x cannot be simultaneously accessed by estimating from the response signal generated by the sensor.…”

mentioning

confidence: 99%

Compact Yttria-Stabilized Zirconia Based Total NO_x Sensor with a Dual Functional Co₃O₄/NiO Sensing Electrode

Zeng

et al. 2019

ACS Sens.

View full text Add to dashboard Cite

Yttria-stabilized zirconia (YSZ) based potentiometric gas sensors have been widely utilized for detecting NO x (NO and NO 2 ). Nevertheless, it is still remains challenging issue for YSZ-based sensors to sense total NO x due to the opposite response signals to NO and NO 2 . Herein, we report an efficient strategy to sense total NO x at high temperature (above 300 °C) by designing a dual functional sensing electrode (SE); namely, the SE will simultaneously convert NO (in NO x mixture) to NO 2 and electrocatalyze all of the obtained NO 2 to generate the response signal of total NO x . In comparison with those previously reported total NO x sensors, the proposed total NO x sensor will be featured with a simplified sensor configuration and desirable long-term stability. To confirm the practicability of the proposed strategy, the NO conversion rate of several metal oxides and their composites have been measured and it turns out that the Co 3 O 4 /NiO shows relatively high NO conversion rate. Further study indicates a YSZ-based sensor consisting of (Co 3 O 4 + 20 wt % NiO)-SE and Mn-based RE demonstrates satisfactory performance in detecting total NO x . For instance, analogous response magnitude to NO and NO 2 as well as the mixture of NO/NO 2 (within 35 ppm) is witnessed for the sensor; particularly, the sensor gives acceptable stability and response/recovery rate at the operating temperature of 500 °C within the examined period. In summary, the use of dual functional SE (e.g., Co 3 O 4 /NiO composite SE) indeed addressed those issues of concern in monitoring the level of total NO x and has provided a promising alternative way for designing future high-performance total NO x sensor.

show abstract

High performance mixed-potential type NO2 sensors based on three-dimensional TPB and Co3V2O8 sensing electrode

Cited by 40 publications

References 35 publications

Size controllable synthesis of cobalt vanadate nanostructures with enhanced photocatalytic activity for the degradation of organic dyes

Size controllable synthesis of cobalt vanadate nanostructures with enhanced photocatalytic activity for the degradation of organic dyes

Flexible Mixed-Potential-Type (MPT) NO2 Sensor Based on An Ultra-Thin Ceramic Film

Compact Yttria-Stabilized Zirconia Based Total NO_x Sensor with a Dual Functional Co₃O₄/NiO Sensing Electrode

Contact Info

Product

Resources

About

High performance mixed-potential type NO2 sensors based on three-dimensional TPB and Co3V2O8 sensing electrode

Cited by 40 publications

References 35 publications

Size controllable synthesis of cobalt vanadate nanostructures with enhanced photocatalytic activity for the degradation of organic dyes

Size controllable synthesis of cobalt vanadate nanostructures with enhanced photocatalytic activity for the degradation of organic dyes

Flexible Mixed-Potential-Type (MPT) NO2 Sensor Based on An Ultra-Thin Ceramic Film

Compact Yttria-Stabilized Zirconia Based Total NOx Sensor with a Dual Functional Co3O4/NiO Sensing Electrode

Contact Info

Product

Resources

About

Compact Yttria-Stabilized Zirconia Based Total NO_x Sensor with a Dual Functional Co₃O₄/NiO Sensing Electrode