UTHM Institutional Repository

The effect of milling speed and calcinations temperature towards composite cathode LSCF-SDC carbonate

Ahmad, Sufizar and Bakar, M.S.A. and Muchtar, Andanastuti and Muhamad, N. and Rahman, H.A. The effect of milling speed and calcinations temperature towards composite cathode LSCF-SDC carbonate. In: International Conference on Advances in Manufacturing and Materials Engineering 2012 (ICAMME 2012) , 3-5 July 2012, Kuala Lumpur, Malaysia.

Full text not available from this repository.

Abstract

The effects of milling speed and calcinations temperature towards La0.6Sr0.4CO0.2Fe0.8O3-δ-SDC carbonate (LSCF-SDC carbonate) composite cathodes were investigated. The preparation of samarium-doped ceria (SDC) carbonate was firstly done by milling the SDC nanopowder with carbonate using the high-energy ball milling (HEBM) in air at room temperature. The obtained SDC carbonate was then used to mill with composite powder of lanthanum strontium cobalt ferrite (LSCF) which is one of the promising materials for the cathode of solid oxide fuel cells (SOFC). The purpose of milling LSCF composite powder with SDC carbonate was to get new composite cathode for intermediate-to low-temperature solid oxide fuel cells (IT-TLSOFC). LSCF composite powder with SDC carbonate was milled using high-energy ball milling with milling speed of 150 rpm and 550 rpm and calcinations temperatures of 750°C, 800°C, 850°C and 900°C. Field emission scanning electron microscopy (FESEM) analysis revealed the presence of large particle resulting from the increasing of calcinations temperature. FESEM also shows the particle size decrease in size with the increasing of milling speed. Therefore, the speed of 550 rpm and temperature of 900°C were found to be the best milling speed and calcinations temperature in producing the composite cathode of LSCF-SDC carbonate.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: SOFC; ball milling; composite; FESEM
Subjects: T Technology > T Technology (General)
Depositing User: Normajihan Abd. Rahman
Date Deposited: 13 Aug 2018 03:41
Last Modified: 13 Aug 2018 03:41
URI: http://eprints.uthm.edu.my/id/eprint/7942
Statistic Details: View Download Statistic

Actions (login required)

View Item View Item