Earticle

초록

영어

The objective of this study was to investigate the electrochemical properties of Nafion/Pt-TiO2 composite membrane under various humidifying conditions. In this study, I synthesized TiO2 nanoparticles followed by the in-situ deposition of Pt nanoparticles on TiO2. The membrane electrolyte assembly (MEA) was fabricated with Nafion/Pt-TiO2 composite membrane and tested for the cell performance and discussed. In this work, TiO2 nano-powders and TiO2/Pt nano-composites were prepared via sol-gel method. To evaluate and compare the electrochemical properties of the prepared material with the ones synthesized with commercial TiO2 nano-powders, X-ray diffraction analysis, FTIR spectroscopy, electron microscopy (TEM, SEM), and PEMFC cell test were utilized. The results showed that sol-gel TiO2 had better surface characteristics and crystallinity when it underwent calcination and Pt-particles were deposited better on materials prepared through sol-gel method. It was concluded that optimum condition for high cell performance was obtained when TiO2 was processed through sulfonation and synthesized with sol-gel method.

목차

ABSTRACT
 1. INTRODUCTION
 2. THEORETICAL BACKGROUND
 3. EXPERIMENT
  3.1. Synthesis of TiO2 nanoparticles
  3.2. Synthesis of TiO2-SO3H
  3.3. In-situ deposit of platinum nanoparticles onto TiO2
  3.4. Preparation of Nafion/Pt-TiO2 composite membrane
  3.5. Preparation of catalyst ink
  3.6. Membrane Electrode Assembly
  3.7. Characterization of physical properties
  3.8. Electrochemical measurement
 4. RESULTS AND DISCUSSION
 5. CONCLUSIONS
 6. ACKNOWLEDGEMENTS
 7. REFERENCES

저자

• Jea Hyun KIM [ Korean Minjok Leadership Academy, 800 Bongwha Anheung Hoengsong Gangwon, Republic of Korea ] Corresponding author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  APEC Youth Scientist Journal [APEC 청소년 과학학술지]

• 간기

  반년간

• pISSN

  2005-5625

• 수록기간

  2009~2022

• 십진분류

  KDC 405 DDC 505