Flexible hydrogen gas sensor: ZnO decorated SnO2 nanowire on over head projector (OHP) sheet substrate

Pradeep, Natarajan; Venkatraman, Uma; Grace, Andrews Nirmala

doi:10.1016/j.matpr.2020.11.493

Cited by 10 publications

(4 citation statements)

References 29 publications

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“…At present, novel ZnO-based heterostructures or core-shell structures have been followed closely to enhance the performance of hydrogen sensors (Li et al , 2011). ZnO decorated SnO2 nanowire on overhead projector sheet substrate was used as flexible gas sensor for hydrogen sensing by the authors of Pradeep et al (2019). Graphene (GR) hybrid materials (Latif and Dickert, 2015; Sham and Notley, 2013) have been widely used in the field of hydrogen sensing and detection.…”

Section: In-depth Analysis Resultsmentioning

confidence: 99%

Hotspot and frontier discovery of hydrogen detection technology based on bibliometrics

Yang

Chen

Huang

et al. 2022

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Purpose With the acceleration of global energy structure transformation, hydrogen has been widely used for its non-pollution and high efficiency, and hydrogen detection is used to guarantee the hydrogen safety. The purpose of this paper is to study the research foundation, trend and hotspots of hydrogen detection field. Design/methodology/approach A total of 4,076 literature records from 2000 to 2021 were retrieved from the core collection of the Web of Science database selected as data sources. The literature information mining was realized by using CiteSpace software. Bibliometrics was used to analyze information, such as keywords, authors, journals, institutions, countries and cited references, and to track research hotspots. Findings Since the 21st century, the number of publications in the hydrogen detection field has been in a stable stepped uptrend. In terms of research foundation, the hotspots such as core-shell structures, nano-hybrid materials and optical fiber hydrogen sensors have been studied extensively. In combination with the discipline structure and research frontier, the selectivity, sensitivity, response speed and other performance parameters of hydrogen sensors need further improvement. The establishment of an interdisciplinary knowledge system centered on materials science and electronic science will become a long-term trend in the research of hydrogen detection. Originality/value This study presents an overview of research status, hotspots and laws in hydrogen detection field, through the quantitative analysis of much literature in the field and the use of data mining, so as to provide credible references for the research of hydrogen detection technology.

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Section: In-depth Analysis Resultsmentioning

confidence: 99%

Hotspot and frontier discovery of hydrogen detection technology based on bibliometrics

Yang

Chen

Huang

et al. 2022

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“…Due to their high flexibility, small size, and portability, flexible gas sensors can be easily integrated into the surfaces of any objects such as bags, clothes, watches, and even human skin. This type of sensor is mainly composed of nanostructured sensing materials, metal contacts, and flexible substrates [13][14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Flexible sensor based on multi-walled carbon nanotube-SnO₂ nanocomposite material for hydrogen detection

Aleksanyan¹,

Sayunts²,

Shahkhatuni³

et al. 2022

Adv. Nat. Sci: Nanosci. Nanotechnol.

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This study aimed to develop a high-performance hydrogen flexible sensor based on multi-walled carbon nanotube (MWCNT):SnO2 material. The MWCNT:SnO2 thin film was deposited onto a flexible polyimide substrate by the electron-beam deposition method to perform the low temperature detection of hydrogen. The thickness and surface morphology of the sensing layers have been determined by the thickness measuring profilometer and the scanning electron microscope (SEM), respectively. The flexible MWCNT:SnO2 sensor exhibited excellent sensitive characteristics to hydrogen in a range of 25–3000 ppm. H2 sensing parameters like sensor response, recovery, and response times were investigated at different operating temperatures. The minimum response and recovery times of the sensor corresponding to 1000 ppm H2 concentrations were found to be 37 and 554 s, respectively. The investigated sensing parameters demonstrate that this work can provide the possibility of a versatile route to fabricate flexible hydrogen sensor with high sensitivity and selectivity, which demonstrates its great potential in hydrogen leakage monitoring.

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“…In any of the existing forms, ZnO is a semiconductor material with a wide and direct bandgap ranging from 3.1 to 3.3 eV and a gap bond energy of 60 meV, making it a material with low photocatalytic activity [3,4]. Due to its excellent dielectric, ferroelectric, piezoelectric and pyroelectric properties, ZnO is considered a multifunctional materials and has a wide range of applications such as solar cells [5], gas sensors [6], piezoelectric devices and field emission devices [7].…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic Degradation of Rhodamine B Dye in Aqueous Suspension by ZnO and M-ZnO (M = La3+, Ce3+, Pr3+ and Nd3+) Nanoparticles in the Presence of UV/H2O2

2021

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In this study, nanoparticles of five photocatalytic systems based on pure zinc oxide and with rare earths ions M-ZnO (M = La3+, Ce3+, Pr3+ or Nd3+) calcined at 500 °C or 700 °C were synthesized and investigated as potential photocatalysts for the removal of dyes. The addition of rare earth ions causes a decrease in the bandgap of ZnO; therefore, it can be well used to improve the photocatalytic properties. The photocatalytic activity of the synthesized nanoparticles was evaluated by the degradation of Rhodamine B in the presence of H2O2 under ultraviolet illumination. The results indicate that all the synthesized nanoparticles show good dye degradation efficiency. The highest degradation efficiency was 97.72% for the Ce-ZnO sample calcined at 500 °C and was achieved in 90 min with an excellent constant of the dye degradation rate k = 0.0363 min−1 following a first-order kinetic mechanism. The presence of oxychlorides as secondary phases inhibits the rate of the photocatalytic reaction.

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Flexible hydrogen gas sensor: ZnO decorated SnO2 nanowire on over head projector (OHP) sheet substrate

Cited by 10 publications

References 29 publications

Hotspot and frontier discovery of hydrogen detection technology based on bibliometrics

Hotspot and frontier discovery of hydrogen detection technology based on bibliometrics

Flexible sensor based on multi-walled carbon nanotube-SnO₂ nanocomposite material for hydrogen detection

Photocatalytic Degradation of Rhodamine B Dye in Aqueous Suspension by ZnO and M-ZnO (M = La3+, Ce3+, Pr3+ and Nd3+) Nanoparticles in the Presence of UV/H2O2

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Flexible hydrogen gas sensor: ZnO decorated SnO2 nanowire on over head projector (OHP) sheet substrate

Cited by 10 publications

References 29 publications

Hotspot and frontier discovery of hydrogen detection technology based on bibliometrics

Hotspot and frontier discovery of hydrogen detection technology based on bibliometrics

Flexible sensor based on multi-walled carbon nanotube-SnO2 nanocomposite material for hydrogen detection

Photocatalytic Degradation of Rhodamine B Dye in Aqueous Suspension by ZnO and M-ZnO (M = La3+, Ce3+, Pr3+ and Nd3+) Nanoparticles in the Presence of UV/H2O2

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Flexible sensor based on multi-walled carbon nanotube-SnO₂ nanocomposite material for hydrogen detection