Hydrogen Gas Sensing Using Palladium-Graphene Nanocomposite Material Based on Surface Acoustic Wave

Ha, Nguyen Hai; Nam, Nguyễn Hoàng; Dũng, Đặng Đức; Phương, Nguyen Huy; Thach, Phan Duy; Hong, Hoang Si

doi:10.1155/2017/9057250

Cited by 23 publications

(12 citation statements)

References 19 publications

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“…Therefore, noble metal catalysts coated onto graphene have been used for H 2 sensing. Among different kinds of noble metal catalysts, the palladium (Pd) nanoparticle (NP) has been demonstrated as a good H 2 sensing material due to its high H 2 solubility at RT. − Johnson et al reported chemical vapor deposition (CVD)-based multilayer graphene/Pd for H 2 sensing; however, the reported multilayer graphene nanoribbon was obtained through 800 °C thermal de-intercalation, the vacuum-filtration process, and anodic alumina (AAO) filter membranes, and therefore, it required a time-consuming and expensive process . Lupan et al introduced ultralight aerographite microtubes for H 2 sensing .…”

Section: Introductionmentioning

confidence: 99%

Biomimetic Turbinate-like Artificial Nose for Hydrogen Detection Based on 3D Porous Laser-Induced Graphene

Zhu

Cho

et al. 2019

ACS Appl. Mater. Interfaces

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Inspired by the turbinate structure in the olfaction system of a dog, a biomimetic artificial nose based on 3D porous laser-induced graphene (LIG) decorated with palladium (Pd) nanoparticles (NPs) has been developed for room-temperature hydrogen (H2) detection. A 3D porous biomimetic turbinate-like network of graphene was synthesized by simply irradiating an infrared laser beam onto a polyimide substrate, which could further be transferred onto another flexible substrate such as polyethylene terephthalate (PET) to broaden its application. The sensing mechanism is based on the catalytic effect of the Pd NPs on the crystal defect of the biomimetic LIG turbinate-like microstructure, which allows facile adsorption and desorption of the nonpolar H2 molecules. The sensor demonstrated an approximately linear sensing response to H2 concentration. Compared to chemical vapor-deposited (CVD) graphene-based gas sensors, the biomimetic turbinate-like microstructure LIG-gas sensor showed ∼1 time higher sensing performance with much simpler and lower-cost fabrication. Furthermore, to expand the potential applications of the biomimetic sensor, we modulated the resistance of the biomimetic LIG sensor by varying laser sweeping gaps and also demonstrated a well-transferred LIG layer onto transparent substrates. Moreover, the LIG sensor showed good mechanical flexibility and robustness for potential wearable and flexible device applications.

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Section: Introductionmentioning

confidence: 99%

Biomimetic Turbinate-like Artificial Nose for Hydrogen Detection Based on 3D Porous Laser-Induced Graphene

Zhu

Cho

et al. 2019

ACS Appl. Mater. Interfaces

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“…As indicated in Fig. 5 c, with the presence of oxygen, the dissociated H 2 atoms react with oxygen and form water 34 , 40 . Then, the concentration of H 2 bounded by the sensitive layer decreases.…”

Section: Discussionmentioning

confidence: 94%

“…On the one hand, good electrical properties of graphene were given high consideration and the majority of H 2 sensors using graphene-like sensitive layers worked on account of the variation of conductivity induced by adsorbed H 2 5 , 27 – 31 . On the other hand, ultrasonic H 2 sensors using graphene-like sensitive layers were also presented 32 – 34 . By adopting Pd as a catalyzer, the sensitivity was increased from 5.8 kHz to 30 kHz towards 1% H 2 mixed in air at room temperature 36 .…”

Section: Introductionmentioning

confidence: 99%

A room-temperature ultrasonic hydrogen sensor based on a sensitive layer of reduced graphene oxide

Zhang

et al. 2021

Sci Rep

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It is challenging to increase the sensitivity of a hydrogen sensor operating at room temperature due to weak sorption and tiny mass of hydrogen. In this work, an ultrasonic sensor is presented for detecting hydrogen, which is composed of a 128° YX-LiNbO3 substrate and a reduced graphene oxide (RGO) sensitive layer with a platinum catalyzer. By optimizing the depositing parameters of RGO and platinum, a considerably high sensitivity is achieved at room temperature. A frequency shift of 308.9 kHz is obtained in 100 ppm hydrogen mixed with argon, and a frequency shift of 24.4 kHz is obtained in 1000 ppm hydrogen mixed in synthetic air. It is demonstrated that in addition to strong sorption of the sensitive layer, the coaction of mass load and conductivity variation is key to high sensitivity of the sensor. By establishing the original conductivity of the sensitive layer within the “conductivity window” for enhancing electrical response, we improve the sensitivity of the ultrasonic sensor, which is available for detecting hydrogen with an extremely low concentration of 5 ppm.

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“…Sayago et al [89] reported high sensitivities of 3087 Hz/ppm to DMMP and 760 Hz/ppm to DPGME with the same type of sensitive material. A shift of 25 kHz to 0.5 % of H2 concentration was reported, with good repeatability and stability, by using a SAW platform associated with Pd-Gr nanocomposite [90]. Similarly, SWCNTs were investigated with SAW platform for the detection of ethyl acetate and toluene vapors with sensitivities of 5.45 kHz/ppm and 7.47 kHz/ppm, respectively [91], and a SWCNTs -Cu nanoparticles composite based SAW platform exhibited a sensitivity of 2.6 kHz/ppm to H2 gas [92].…”

Section: A Acoustic Waves Based Platforms For Chemical and Bio Sensing And Monitoringmentioning

confidence: 91%

Passive Resonant Sensors: Trends and Future Prospects

et al. 2021

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Sensors based on "resonance phenomenon" span a broad spectrum of important current applications including detection of biological and chemical agents, and measurements of physical quantities. Resonance phenomena occur with all types of waves: electromagnetic, optic, and acoustic. This review reports about the most recent advances in the design and applications of resonant "passive" sensors, i.e. resonant sensors able to operate with a distant power source and/or able to communicate with a distant transceiver. The sensors considered in this review include acoustic, magnetoelastic, and electromagnetic transducers. They are presented through their relevant technological aspects and through they major advantages which include their integrability within embedded systems and/or systems requiring energy autonomy. Furthermore, the use of these resonant sensors is illustrated in a large variety of applications, ranging from environmental monitoring, structural health monitoring, food packaging monitoring, wearable or implanted sensors for the monitoring of physiological parameters in healthcare related applications, to IoT and future industry monitoring applications.

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Hydrogen Gas Sensing Using Palladium-Graphene Nanocomposite Material Based on Surface Acoustic Wave

Cited by 23 publications

References 19 publications

Biomimetic Turbinate-like Artificial Nose for Hydrogen Detection Based on 3D Porous Laser-Induced Graphene

Biomimetic Turbinate-like Artificial Nose for Hydrogen Detection Based on 3D Porous Laser-Induced Graphene

A room-temperature ultrasonic hydrogen sensor based on a sensitive layer of reduced graphene oxide

Passive Resonant Sensors: Trends and Future Prospects

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