1  Introduction
  1.1  Background of Research
    1.1.1  Significance of Fuel-Powered Automobile Exhaust Detection
    1.1.2  Overview of Gas Sensors
    1.1.3  Application Status of Exhaust Detection Sensors
  1.2  Overview of Solid Electrolyte Sensors
    1.2.1  Research on Solid Electrolyte Material
    1.2.2  Research on YSZ Material
    1.2.3  Working Principles and Classification of Solid Electrolyte Gas Sensors
  1.3  Overview of YSZ-Based Mixed Potential NO2 Sensor
    1.3.1  Working Principle of YSZ-Based Mixed Potential NO2 Sensor
    1.3.2  Status Quo of Research on YSZ-Based Mixed Potential NO2 Sensor
    1.3.3  Shortcomings in the Present Research on YSZ-Based Mixed Potential NO2 Sensor
  1.4  Main Research in This Paper
  References
2  Research on Optimization of Sensitive Properties of Sensor Electrode Materials
  2.1  Introduction
  2.2  Research on Sensitive Materials of Binary Composite Oxide
    2.2.1  Preparation for Material Synthesis
    2.2.2  Synthesis and Preparation of Ce/Fe and Ce/Cr Binary Composite Oxides
    2.2.3  Material Characterization of Ce/Fe and Ce/Cr Binary Composite Oxides
  2.3  Preparation of Planar NO2  Sensors Based on Ce/Fe and Ce/Cr Sensing Electrodes
    2.3.1  Sensor Preparation
    2.3.2  Preparation and Encapsulation of Planar YSZ-Based NO2 Sensors
  2.4  Performance Testing and Analysis of Ce/Fe, Ce/Cr Composite Oxide NO2 Sensors
    2.4.1  Testing Methods and Characterization of Sensors
    2.4.2  Analysis on Experimental Results and Phenomena
  References
3  Research on Enhancement Technique of Sensor Boundary Activity
  3.1  Introduction
  3.2  Research on Improvement Technology of Surface Microstructure by Low-Energy Ion Beam Etching
    3.2.1  Experimental Materials and Equipment
    3.2.2  Improvement Scheme of Low-Energy Ion Beam for YSZ Surface Microstructures
    3.2.3  Microstructural Characterization and Analysis of YSZ Surfaces
  3.3  Preparation and Characterization of NiO Sensing Electrode Materials
    3.3.1  Preparation for Material Synthesis
    3.3.2  Synthesis and Preparation of NiO Sensing Materials
    3.3.3  Characterization of NiO Sensing Electrode Materials
    3.3.4  Preparation of Planar YSZ-Based NO2 Sensors
  3.4  Performance Test and Analysis of NO2 Sensors
  3.5  Summary
  References
4  Research and Development of Flexible Mixed Potential NO2 Sensors with Low Power Consumption
  4.1  Introduction
  4.2  Simulation and Design of Integrated Microheaters
    4.2.1  Presentation and Design of YSZ-Based Microheaters
    4.2.2  Simulation Results and Analysis of Microheaters
  4.3  Fabrication and Characterization of Flexible YSZ-Based NO2 Sensors
    4.3.1  Selection and Preparation of YSZ Film Materials
    4.3.2  Experimental Materials and Equipment
    4.3.3  Preparation of YSZ-Based NO2  Sensors with the “Sandwich” Structure
    4.3.4  Fabrication Process Characterization of the Sensor
  4.4  Performance Test and Analysis of Mixed Potential NO2 Sensors
    4.4.1  Test Methods and Characterization of Sensors
    4.4.2  Experimental Results and Phenomenon Analysis
  4.5  Summary
  References
5  Summary and Prospects
  5.1  Summary of this Paper
  5.2  Research Prospects