Earticle

초록

영어

In the paper,We can prepare the PANI in different conditions of acid (HCl, HNO3, H2SO4 and C7H6O6S · 2H2O) by using aniline monomercc chemical oxidative polymerization.With the test of scanning electron microscopy (SEM) ,it shows that the powder of preparation is nanoscale particles, and the size of particle is in the order of tens to hundreds of nanometers. It has good dispersion, but the particle size is nonuniform; With differential thermogravimetric analyzer (DTA) test ,we can obtain the properties of powder in temperature of thermal decomposition and stability. At the room temperature, we test the sensitivity of gas for the ammonia concentration range of 1-7ppm. The result shows that, in different conditions of acids (HCl, HNO3, H2SO4 and C7H6O6S · 2H2O) ,the relationship of sensitivity of gas sensor is linear in response to ammonia gas.With the analysis of the sensitive mechanism for ammonia gas of PANI material,ultimately, we can concluded that, in different conditions of acid, doped PANI materials are suitable to be detected for ammonia in a wide concentration range, the recovery time of response to ammonia gas is shorter and more stabile for the larger organo functional proton acid (C7H6O6S · 2H2O).

목차

Abstract
 1. Introduction
 2. The Experiment
  2.1 Reagents and Instruments
  2.2 Preparation of PANI
  2.3 Making and Measurement of Components
 3. Results and Discussion
  3.1 Characterization of Materials
  3.2 Gas Sensing Properties
  3.3 Sensitive Mechanism
 4. Conclusion
 References

키워드

저자

• Mingxin Song [ Harbin University of Science and Technology ]
• Fangfang Liu [ Harbin University of Science and Technology ]
• Xintian Ma [ Harbin University of Science and Technology ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Control and Automation

• 간기

  월간

• pISSN

  2005-4297

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605