Room Temperature Hydrogen Gas Sensing Using Zn<sub>2</sub>TiO<sub>4</sub> Thin Film

Kerketta, Ujjaval; Daniel, T.; Yadav, Vimal Kumar Singh; Paily, Roy

doi:10.1109/lsens.2023.3241312

Cited by 3 publications

(3 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(c) Selectivity of the SnO 2 and NiO-SnO 2 sensors to 200 ppm gases under isothermal and temperature-pulsed operation modes. (d) Comparison of H 2 response in this study and in previous works, including doping[10,11,13,38], Au decoration[9,39], morphology control[40][41][42], heterojunction[16], core-shell structure[43], and nanocomposite[12,18,44,45].…”

mentioning

confidence: 77%

“…Hence, the NiO-SnO 2 sensor shows a good selectivity for H 2 . Figure 5(d) compares the [10,11,13,38], Au decoration [9,39], morphology control [40][41][42], heterojunction [16], core-shell structure [43], and nanocomposite [12,18,44,45].…”

Section: Gas Sensing Performancementioning

confidence: 99%

“…To date, monitoring H 2 leakage is critical not only in energy storage facilities but also for the fuel gas and clean energy industries [17]. H 2 also poses a significant flammability risk, as its presence in the air ranging from ∼4 to 75 vol.% may lead to explosion [18]. Further, 'thermal runaway' frequently plagues rechargeable lithium-ion batteries (LIBs) under rapid or extended cycling conditions, attributed to the inevitable growth of lithium dendrites on graphite anodes [19].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

High performance H₂ sensors based on NiO-SnO₂ nanosheets in temperature-pulsed operation mode

Li,

Luo,

Yan

2024

Smart Mater. Struct.

View full text Add to dashboard Cite

Enhancements in the responses of semiconductor gas sensors for hydrogen (H2) are imperative to ensure the safety for industrial processes and fuel cells applications. Alternative to the conventional method of maintaining an optimum isothermal temperature, this study presents a novel technique that sequentially modulates the physisorption and chemisorption processes of the target gas and oxygen species through a temperature-pulsed strategy. This method substantially amplified the electrical responses of a NiO-doped SnO2 gas sensor to H2 vapor. Under the optimum pulsed-heating condition, the sensor achieved a remarkable response of 252 to 300 ppm H2, which is comparable to or better than that of many existing H2 sensors. The integration of a pulse-driven microheater with a heterojunction-forming sensing layer has led to improved sensitivity, providing additional opportunities for H2 monitoring.

show abstract

mentioning

confidence: 77%

Section: Gas Sensing Performancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

High performance H₂ sensors based on NiO-SnO₂ nanosheets in temperature-pulsed operation mode

Li,

Luo,

Yan

2024

Smart Mater. Struct.

View full text Add to dashboard Cite

show abstract

Polyaniline/Poly(vinyl alcohol) Conductive Hydrogel for a Chemiresistive Ultrasensitive Ammonia Gas Sensor

Devi,

Daniel,

Paily

et al. 2024

ACS Appl. Polym. Mater.

View full text Add to dashboard Cite

Printing technology is an emerging microfabrication technique that is being explored as a potential alternative to traditional semiconductor technology. This innovative approach allows for high precision, ease of fabrication, integration of multiple incompatible materials, and scalability, leading to the production of low-cost and high-performance devices. Herein, we present the fabrication and investigation of a chemiresistive sensor utilizing micro girder (μG) printing technology employing a repetitive freeze−thaw (FT)-cycled polyaniline/poly(vinyl alcohol) (PANI/PVA) hydrogel as the sensing material for the detection of ammonia (NH 3 ) gas down to 100 ppm at room temperature. The sensor shows an improved sensitivity of 94.7% for detecting 100 ppm of NH 3 with a limit of detection of 1 ppm. The repetitive FT cycles promote the formation of well-defined microstructures of the hydrogels, which has been shown by detailed structural and morphological analyses. This hydrogel-based chemiresistive sensor demonstrated a good response to NH 3 gas by monitoring changes in resistance, offering a cost-effective and practical alternative for NH 3 detection. The sensor exhibited high sensitivity to NH 3 with rapid response and recovery times of 25 and 10 s, respectively, making it suitable for real-time applications. Additionally, the study explored the hydrogel sensor's cross-sensitivity to NH 3 , nitrogen dioxide (NO 2 ), and carbon dioxide (CO 2 ). The sensitivity of the sensor toward some of the breath volatile organic compounds is also analyzed. The sensor's behavior is found to adhere to the Langmuir adsorption/desorption model, further confirming its efficacy in gas detection. The excellent sensing ability with a high cross-sensitivity of the developed sensor is attributed to the formation of well-developed cross-linked network structures during FT cycles. The stability of hydrogel-based sensors over a 3-month period further supports their potential for practical deployment in various environmental and healthcare monitoring scenarios, aiming to provide a straightforward strategy for detecting exhaled breath ammonia.

show abstract

Enhancement of Hydrogen Sensing with Multi-Reflection Raman Scattering

Yamamoto,

Umehara,

Inoue

et al. 2023

2023 Ieee Sensors

View full text Add to dashboard Cite

Room Temperature Hydrogen Gas Sensing Using Zn₂TiO₄ Thin Film

Cited by 3 publications

References 31 publications

High performance H₂ sensors based on NiO-SnO₂ nanosheets in temperature-pulsed operation mode

High performance H₂ sensors based on NiO-SnO₂ nanosheets in temperature-pulsed operation mode

Polyaniline/Poly(vinyl alcohol) Conductive Hydrogel for a Chemiresistive Ultrasensitive Ammonia Gas Sensor

Enhancement of Hydrogen Sensing with Multi-Reflection Raman Scattering

Contact Info

Product

Resources

About

Room Temperature Hydrogen Gas Sensing Using Zn2TiO4 Thin Film

Cited by 3 publications

References 31 publications

High performance H2 sensors based on NiO-SnO2 nanosheets in temperature-pulsed operation mode

High performance H2 sensors based on NiO-SnO2 nanosheets in temperature-pulsed operation mode

Polyaniline/Poly(vinyl alcohol) Conductive Hydrogel for a Chemiresistive Ultrasensitive Ammonia Gas Sensor

Enhancement of Hydrogen Sensing with Multi-Reflection Raman Scattering

Contact Info

Product

Resources

About

Room Temperature Hydrogen Gas Sensing Using Zn₂TiO₄ Thin Film

High performance H₂ sensors based on NiO-SnO₂ nanosheets in temperature-pulsed operation mode

High performance H₂ sensors based on NiO-SnO₂ nanosheets in temperature-pulsed operation mode