Abstract
Multiwalled carbon nanotubes (MWCNTs) supported LaxCa1−xMnO3 (x = 0.2, 0.3) were synthesized via wet impregnation method, calcined at 450 °C and under vacuum oven at 200 °C for six hours. The x-ray diffraction (XRD) analysis inferred the presence of carbon within parent crystal orientation of LaCaMnO3 in synthesized MWCNT/LaxCa1−xMnO3 (x = 0.2, 0.3). Compositional analysis and binding energies profile of elements presents in synthesized samples was studied via x-ray photoelectron spectroscopy (XPS). Maximum output power density of La0.2Ca0.8MnO3/MWCNTs and La0.3Ca0.7MnO3/MWCNTs was found to be 277 mW cm−2 and 151 mW cm−2 at 600 °C observed from fuel cell data.
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