Electrochemical bulk and film-type oxygen sensors: Strategies for detecting extremely low concentration in hydrogen environments
نویسندگان
چکیده
Potentiometric oxygen sensors with excellent sensitivity in a low concentration range are designed based on intrinsic logarithmic response characteristics, and an asymmetric electrode structure, differentiated from conventional reference gases or parts exposed to air, is implemented. Electrolytes materials that formulate sensor devices evaluated by comprehensively considering their reactivity trace oxygen, ion formation, ease of movement. The using yttria-stabilized zirconia bulk ceramic electrolyte measures the oxygen-hydrogen mixture down 0.5%, time 7.8 s. Nafion proton conductor film polyimide gas separation membrane allows room-temperature sensing minimum 2%.
منابع مشابه
on the relationship between iranian learners personality type and communication strategies in speaking.
چکیده شخصیت به مجموعه عوامل روانی، عقلی، احساسی، و فیزیکی تشکیل دهنده یک فرد اطلاق میشود، خصوصا فرد ازدیدگاه دیگران ( مرجع). تدابیر یاد گیری سعی در اگاهی از اقدامات زبان اموزان موفق زبان دوم یا یک زبان بیگانه را دارد که توسط خود زبان اموزان گزارش میشود،یا حین یادگیری زبان دوم یا زبان بیگانه از انها قابل مشاهده است( روبین و وندن 1987). همچنین تدابیر ارتباطی به زبان اموزان کمک می کند تا بر مشکلا...
15 صفحه اولCalibrating Bulk Built-in Current Sensors for Detecting Transient Faults
This work presents a novel circuit for detecting transient faults in combinational and sequential logic. The detection mechanism features a built-in current sensor connected to the bulks of the monitored logic. The proposed circuit was optimized in terms of power consumption and enhanced with low-power sleep-mode. In addition, a calibration method for bulk built-in current sensors is presented....
متن کاملResistive Oxygen Gas Sensors for Harsh Environments
Resistive oxygen sensors are an inexpensive alternative to the classical potentiometric zirconia oxygen sensor, especially for use in harsh environments and at temperatures of several hundred °C or even higher. This device-oriented paper gives a historical overview on the development of these sensor materials. It focuses especially on approaches to obtain a temperature independent behavior. It ...
متن کاملPhotonic Crystal-Based Sensors for Detecting Alcohol Concentration
Polystyrene (PS) opal and titania (TiO2) inverse opal films were fabricated by the self-assembly colloidal crystal template technique. Based on Bragg’s law, these sensors were used to detect the different concentrations of ethanol solution. The results indicated that TiO2 inverse opal films were advantageous over PS opal film for detecting the ethanol concentration. TiO2 inverse opal films sint...
متن کاملElectrochemical Oxygen Reduction for the Production of Hydrogen Peroxide
The development of economical, stable, and highly active electrocatalysts for the oxygen reduction reaction (ORR) to form water represents a major thrust in the research area of polymerelectrolyte-membrane fuel cells. However, one of the main challenges facing these low-temperature fuel cells is slow ORR kinetics at the cathode, even with the use of Pt-based catalysts. In addition, Pt-based cat...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of vacuum science and technology
سال: 2023
ISSN: ['2166-2746', '2166-2754']
DOI: https://doi.org/10.1116/6.0002631