Amperometric hydrogen gas sensor based on Pt/C/Nafion electrode and ionic electrolyte

Zhi, Zinan; Gao, Wanshuo; Yang, Jiawei; Yang, Boxuan; Tian, Chen; Fan, Shurui; Li, Haoyi; Li, Jinpo; Hua, Zhongqiu

doi:10.1016/j.snb.2022.132137

Cited by 23 publications

(15 citation statements)

References 20 publications

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“…5. 70 By incorporating a Pt/C/Nafion film into the carbon electrode, the sensor's sensitivity was heightened. The Pt/C/Nafion suspension was added to the carbon electrodes dropwise for easy and efficient modification.…”

Section: Chemical Hydrogen Sensing Methodsmentioning

confidence: 99%

Review—Recent Progress in the Design of Chemical Hydrogen Sensors

Wang,

Song

2024

J. Electrochem. Soc.

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The potential of hydrogen gas as a clean and renewable energy source has attracted considerable interest as a fuel for new energy vehicles. In order to guarantee the security and efficiency of these vehicles, the development of chemical hydrogen sensors has become essential. This paper offers a synopsis of the architecture of smart hydrogen detectors. It delves into the fundamentals, technical characteristics, and practical uses of these sensors. This review delves into a variety of hydrogen sensors, such as resistive sensors, electrochemical sensors, field-effect transistor (FET) sensors, and other sensors. This review provides researchers in the field of chemical sensor design with useful information about the current and future potential of hydrogen sensors.

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Section: Chemical Hydrogen Sensing Methodsmentioning

confidence: 99%

Review—Recent Progress in the Design of Chemical Hydrogen Sensors

Wang,

Song

2024

J. Electrochem. Soc.

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“…3D-printed cells can be used to assemble sensing materials and devices. For example, electrochemical cells for hydrogen sensors, 188 ABS printed gas chamber, 189 and 3D packages for Pt/C/Nafion film (Figure 10a,b) 190 all played important roles in recently reported sensing systems. Modifying the inner structures of chambers and cells to conform to aerodynamics is an effective approach for optimizing gas adsorption and desorption processes.…”

Section: D-printed Functional Componentsmentioning

confidence: 99%

Programmable and Modularized Gas Sensor Integrated by 3D Printing

Zhou,

Zhao,

Xun

et al. 2024

Chem. Rev.

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The rapid advancement of intelligent manufacturing technology has enabled electronic equipment to achieve synergistic design and programmable optimization through computer-aided engineering. Three-dimensional (3D) printing, with the unique characteristics of near-net-shape forming and mold-free fabrication, serves as an effective medium for the materialization of digital designs into usable devices. This methodology is particularly applicable to gas sensors, where performance can be collaboratively optimized by the tailored design of each internal module including composition, microstructure, and architecture. Meanwhile, diverse 3D printing technologies can realize modularized fabrication according to the application requirements. The integration of artificial intelligence software systems further facilitates the output of precise and dependable signals. Simultaneously, the self-learning capabilities of the system also promote programmable optimization for the hardware, fostering continuous improvement of gas sensors for dynamic environments. This review investigates the latest studies on 3D-printed gas sensor devices and relevant components, elucidating the technical features and advantages of different 3D printing processes. A general testing framework for the performance evaluation of customized gas sensors is proposed. Additionally, it highlights the superiority and challenges of programmable and modularized gas sensors, providing a comprehensive reference for material adjustments, structure design, and process modifications for advanced gas sensor devices.

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“…Hydrogen (H 2 ) gas sensors have been intensively studied for decades. Various types of hydrogen sensors, including metal oxide semiconductor (MOS) sensors [3][4][5][6] , electrochemical sensors 7 , work function-based sensors (e.g., Schottky diode sensors, FET sensors) [8][9][10][11] , and catalytic reaction sensors 12 , have been developed, and many efforts have been made to improve hydrogen gas detection performance. Generally, oxide semiconductor sensors and electrochemical sensors have high sensitivity, and low concentrations of hydrogen gas can be detected 3,[13][14][15][16][17][18] .…”

Section: Introductionmentioning

confidence: 99%

1ppm-detectable hydrogen gas sensors by using highly sensitive P+/N+ single-crystalline silicon thermopiles

Zhang

Jia

et al. 2023

Microsyst Nanoeng

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Hydrogen (H2) is currently of strategic importance in the pursuit of a decarbonized, environmentally benign, sustainable global energy system; however, the explosive nature of H2 requires leakage monitoring to ensure safe application in industry. Therefore, H2 gas sensors with a high sensitivity and fast response across a wide concentration range are crucial yet technically challenging. In this work, we demonstrate a new type of MEMS differential thermopile gas sensor for the highly sensitive, rapid detection of trace H2 gas in air. Facilitated by a unique MIS fabrication technique, pairs of single-crystalline silicon thermopiles (i.e., sensing and reference thermopiles) are batch fabricated with high-density single-crystalline silicon thermocouples, yielding an outstanding temperature sensitivity at the sub-mK level. Such devices ensure the detection of miniscule temperature changes due to the catalytic reaction of H2 with a detection limit as low as ~1 ppm at an operating temperature of 120 °C. The MEMS differential thermopiles also exhibit a wide linear detection range (1 ppm-2%, more than four orders of magnitude) and fast response and recovery times of 1.9 s and 1.4 s, respectively, when detecting 0.1% H2 in air. Moreover, the sensors show good selectivity against common combustible gases and volatile organics, good repeatability, and long-term stability. The proposed MEMS thermopile H2 sensors hold promise for the trace detection and early warning of H2 leakage in a wide range of applications.

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Amperometric hydrogen gas sensor based on Pt/C/Nafion electrode and ionic electrolyte

Cited by 23 publications

References 20 publications

Review—Recent Progress in the Design of Chemical Hydrogen Sensors

Review—Recent Progress in the Design of Chemical Hydrogen Sensors

Programmable and Modularized Gas Sensor Integrated by 3D Printing

1ppm-detectable hydrogen gas sensors by using highly sensitive P+/N+ single-crystalline silicon thermopiles

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