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Editors’ Choice—Review—Recent Advances in Mixed Potential Sensors

Journal Article · · Journal of the Electrochemical Society (Online)
Gas sensors are widely used in environmental monitoring and provide controls especially when working with toxic gases. YSZ based λ-sensors have been utilized in the automobile industry for exhaust gas monitoring for more than 40 years. However, recent regulations on emissions reduction has forced further development of toxic gases monitoring in various applications. Mixed potential sensors with YSZ electrolyte are receiving increased attention due to their higher sensitivity and durability under harsh conditions. This review focuses on recent (past 5 years) developments made on electrode and electrolyte structure along with new sensing electrode materials towards detecting gases such as NOx, NH3, H2, CO and hydrocarbons (HCs). The theory of mixed potential sensors is discussed along with recent developments in detection of multi-gas mixtures using the output from an array of sensors in a mathematical model. Future directions for mixed potential sensor research, and methodologies to improving sensing characteristics are also outlined
Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
89233218CNA000001
OSTI ID:
1614841
Report Number(s):
LA-UR--19-30274
Journal Information:
Journal of the Electrochemical Society (Online), Journal Name: Journal of the Electrochemical Society (Online) Journal Issue: 3 Vol. 167; ISSN 1945-7111
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English

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Sub-ppb SO2 gas sensor based on NASICON and LaxSm1-xFeO3 sensing electrode journal March 2018
Enhanced sensing performance of mixed potential ammonia gas sensor based on Bi0.95Ni0.05VO3.975 by silver journal April 2018
Enhanced mixed potential NOx gas response performance of surface modified and NiO nanoparticles infiltrated solid-state electrochemical-based NiO-YSZ composite sensing electrodes journal June 2018
Using sensor arrays to decode NO /NH3/C3H8 gas mixtures for automotive exhaust monitoring journal July 2018
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Effect of the Heterogeneous Catalytic Activity of Electrodes for Mixed Potential Sensors journal January 2018
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Potentiometric Ethene Sensor for Postharvest Detection Applications journal January 2019
Mixed Potential Response for Hydrocarbons in a Proton-Conductive Electrochemical Cell Operated at Room Temperature journal January 2014
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Editors' Choice—Field Trials Testing of Mixed Potential Electrochemical Hydrogen Safety Sensors at Commercial California Hydrogen Filling Stations journal January 2017
Electrochemical Sensors for Air Quality Monitoring journal January 2019
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High Performance Mixed Potential Type NO2 Gas Sensor Based on Porous YSZ Layer Formed with Graphite Doping journal July 2019
Development of an Al2O3/ZrO2-Composite High-Accuracy NOx Sensor conference April 2010
High-temperature CO / HC gas sensors to optimize firewood combustion in low-power fireplaces journal January 2017

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