Earticle

초록

영어

Carbon monoxide (CO) is one of the most common and widely distributed poisonous air pollutants. Oxidation of it to CO2 is an important process. Mixed metal oxides, cobalt oxide and zinc oxide with varying mole ratios were synthesized by co-precepitation technique. The synthesized materials were characterized by powder X-ray diffraction (XRD) for detection of crystalline phases, Fourier Transform Infrared Spectroscopy (FTIR), Brunauer-Emmett-Teller (BET) technique, Scanning electron microscopy (SEM) for morphology, diffuse reflectance ultraviolet-visible (DRS-UV-vis) to understand the oxidation state and coordination number of metal ions in solid samples. The XRD patterns carried the peaks pertaining to Co3O4 phase along with the crystalline wurtzite phase of ZnO in the mixed oxide catalyst. The CO oxidation performance of the synthesized catalyst was tested and the results revealed that the catalyst containing equal mole ratio of both the metal oxides exhibited high activity at low temperature of 70° C, while others showed the maximum conversion at 120 ° C. Presence of zinc oxide lowers the oxidation temperature. Hence cobalt oxide- zinc oxide catalyst is considered as one of the better choice of catalyst system for CO oxidation.

목차

Abstract
 1. Introduction
 2. Experimental
  2.1. Materials
  2.2. Methods
  2.3. Catalyst Characterization
  2.4. CO conversion experiments
 3. Results and Discussion
  3.1. Characterization
  3.2. CO oxidation
 4. Conclusions
 Acknowledgements
 References

키워드

저자

• Hyun Tae Jang [ Department of Chemical Engineering, Hanseo University, Seosan-si 356-706, South Korea ]
• Eui Min Jung [ Department of Chemical Engineering, Hanseo University, Seosan-si 356-706, South Korea ]
• Sang Hyun Park [ Department of Chemical Engineering, Hanseo University, Seosan-si 356-706, South Korea ]
• Pushparaj Hemalatha [ Department of Chemical Engineering, Hanseo University, Seosan-si 356-706, South Korea ]

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