Investigation of catalytic hydrogen sensors with platinum group catalysts

Ivanov, Ivan; Baranov, Alexander; Talipov, V. A.; Миронов, С. М.; Akbari, Saba; Kolesnik, Irina V.; Orlova, Elena D.; Napolskii, K. S.

doi:10.1016/j.snb.2021.130515

Cited by 38 publications

(16 citation statements)

References 26 publications

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“…Generally, selective hydrogen sensors are based on the catalytic reactivity and solubility of hydrogen with some noble metal elements, such as palladium and platinum 9 – 12 . Interaction of hydrogen with the sensing element causes changes in resistance 13 , 14 , work function 15 , volume 8 , 11 , temperature 16 , and refractive index 17 , which can be used to detect and quantify the hydrogen gas concentration. Existing electrical sensing techniques such as thermal conductivity based 18 , and resistance based 13 , 14 , electrochemical 19 and semiconductor junction 20 based usually operate at high temperatures and biasing condition, which increase the system complexity, the risk of explosion and the power consumption.…”

Section: Introductionmentioning

confidence: 99%

On-chip ultrasensitive and rapid hydrogen sensing based on plasmon-induced hot electron–molecule interaction

et al. 2023

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Hydrogen energy is a zero-carbon replacement for fossil fuels. However, hydrogen is highly flammable and explosive hence timely sensitive leak detection is crucial. Existing optical sensing techniques rely on complex instruments, while electrical sensing techniques usually operate at high temperatures and biasing condition. In this paper an on-chip plasmonic–catalytic hydrogen sensing concept with a concentration detection limit down to 1 ppm is presented that is based on a metal–insulator–semiconductor (MIS) nanojunction operating at room temperature and zero bias. The sensing signal of the device was enhanced by three orders of magnitude at a one-order of magnitude higher response speed compared to alternative non-plasmonic devices. The excellent performance is attributed to the hydrogen induced interfacial dipole charge layer and the associated plasmonic hot electron modulated photoelectric response. Excellent agreements were achieved between experiment and theoretical calculations based on a quantum tunneling model. Such an on-chip combination of plasmonic optics, photoelectric detection and photocatalysis offers promising strategies for next-generation optical gas sensors that require high sensitivity, low time delay, low cost, high portability and flexibility.

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Section: Introductionmentioning

confidence: 99%

On-chip ultrasensitive and rapid hydrogen sensing based on plasmon-induced hot electron–molecule interaction

et al. 2023

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“…However, the response of the bridge circuit for the hydrogen can be seen even at sufficiently low heating temperatures, which is associated with the high activity of the catalyst containing platinum and palladium. (6) In principle, to determine the hydrogen concentration, one can take any temperature value in the range from 20 to 200 ℃. Since the initiation of the explosion of hydrogen-air mixtures requires a very small amount of energy (about 20 µJ), the lower the temperature of the sensor, the safer its use.…”

Section: Approach To Low-temperature Measurementmentioning

confidence: 99%

“…The main transducers used in instruments for gas analysis include electrochemical, (4) semiconductor, (5) and catalytic sensors. (6,7) Each type of sensor has its own advantages and disadvantages, which determine their fields of application. The electrochemical and semiconductor sensors are most effective in the ppm range of hydrogen concentrations, and the catalytic ones, in the pre-explosive concentration range (0.1-2 vol.% ).…”

Section: Introductionmentioning

confidence: 99%

Development of an Approach to Increase Hydrogen Measurement Selectivity

Ivanov¹,

Баранов²,

Миронов³

et al. 2023

Sensors and Materials

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Hydrogen monitoring in industrial premises, when other gases are also present in air, is an urgent task. For safety reasons, it is necessary that a hydrogen sensor provides measurements at the lowest possible temperature. In this paper, we propose an approach to the selective measurement of the concentration of hydrogen, which is part of multicomponent hydrocarbon mixtures. Binary and ternary mixtures of hydrogen with methane, propane, and butane were used in this study. The traditional method is based on measuring the catalytic sensor response, and a new method that is based on measuring the amount of heat released during hydrogen combustion was used to solve the problem of selectivity. An industrial catalytic sensor was used for the measurements. It was shown that for the selective measurement of hydrogen in hydrocarbon mixtures, it is necessary to reduce the sensor temperature below 200 ℃. Measurements of hydrogen concentration and a comparison of results were carried out at 105 ℃. Such a low operating temperature is an excellent result for a catalytic sensor. It is shown that the method based on measuring the amount of heat released during hydrogen combustion is more accurate than the traditional method, and the average error was 7.7%.

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“…Современные исследования термокаталитических сенсоров сосредоточены на уменьшении размеров датчиков [15,16], снижении их энергопотребления [17] и повышении стабильности используемых катализаторов для обеспечения стабильной чувствительности в долгосрочной перспективе [18]. В частности, использование МЭМС и различных технологий осаждения каталитического материала помогло значительно уменьшить энергопотребление датчиков [14,19,20].…”

Section: Introductionunclassified

Термокаталитический Газовый Сенсор На Основе Наночастиц Палладия, Синтезируемых Методом Искровой Абляции

Vlasov¹,

Kornyushin²,

Kameneva³

et al. 2022

MIST

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Продемонстрирована возможность изготовления термокаталитических газовых сенсоров с каталитическим слоем на основе наночастиц палладия, синтезируемых методом искровой абляции с использованием слитков палладия чистотой 99,96 масс.% в качестве исходного материала. Для реализации сенсора использована коммерчески доступная МЭМС платформа на основе тонкой мембраны из стеклокерамики толщиной 50–60 мкм с интегрированным микронагревателем. Синтезированные наночастицы в составе устойчивых функциональных чернил с концентрацией порядка 25 масс.% наносились на обратную относительно микронагревателя сторону мембраны с помощью специализированного микроплоттера SonoPlot GIX Microplotter II. Полученная структура отжигалась при температуре 400 °C для удаления органического связующего из сухого остатка нанесенных чернил, в результате чего на поверхности мембраны формировался однородный слой каталитически активного материала толщиной около 3 мкм. Сенсор, реализованный на основе двух МЭМС платформ (одна – с каталитическим слоем, вторая – исходная (без слоя)), включенных в мостовую схему, демонстрирует высокую чувствительность к метану (50 мВ на 1% метана) при полной потребляемой мощности порядка 350 мВт, что сопоставимо с характеристиками коммерческих аналогов, производимых Figaro USA Inc., SGX Sensortech, Zhengzhou Winsen Electronics Technology Co.

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Investigation of catalytic hydrogen sensors with platinum group catalysts

Cited by 38 publications

References 26 publications

On-chip ultrasensitive and rapid hydrogen sensing based on plasmon-induced hot electron–molecule interaction

On-chip ultrasensitive and rapid hydrogen sensing based on plasmon-induced hot electron–molecule interaction

Development of an Approach to Increase Hydrogen Measurement Selectivity

Термокаталитический Газовый Сенсор На Основе Наночастиц Палладия, Синтезируемых Методом Искровой Абляции

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