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All Journal Indonesian Journal of Chemistry
Ramli, Muhammad Mahyiddin
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Chemical Engineering, Chemistry & Bioengineering Chemistry

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Biomass Waste Incorporation in La0.6Sr0.4Co0.2Fe0.8O3-α˗Ba(Ce0.6Zr0.4)0.9Y0.1O3-δ Composite Cathode: Effects on Microstructural and Physical Properties Ismail, Ismariza; Abdullah, Nur Ashafieka; Karim, Norizah Abd; Johari, Shazlina; Ramli, Muhammad Mahyiddin
Indonesian Journal of Chemistry Vol 25, No 2 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.100764

Abstract

This study explores the incorporation of rice straw as a pore-forming agent in fabricating the La0.6Sr0.4Co0.2Fe0.8O3-α˗Ba(Ce0.6Zr0.4)0.9Y0.1O3–δ (LSCF-BCZY) composite cathode, focusing on its microstructural and physical properties. Conventional cathode materials often face challenges in balancing porosity and structural stability, with synthetic pore formers posing environmental and consistency concerns. To address these issues, rice straw was introduced into the cathode matrix at varying weight percentages, and the composites were sintered at 1000 °C. The addition of rice straw was evaluated using X-ray diffraction, scanning electron microscopy, and densitometry. The results revealed that increasing rice straw content significantly enhanced cathode porosity, rising from 5.53 to 27.74%, with a concomitant reduction in density from 1.33 to 0.93 g/cm3, while maintaining the crystalline stability of the LSCF-BCZY composite. Enhanced porosity suggests improved reactant diffusion to active sites, potentially benefiting the cell's performance in future energy applications. This work highlights the potential of agricultural waste as a sustainable and effective alternative to synthetic pore formers in cathode fabrication.
Co-Authors Abdullah, Nur Ashafieka Ismail, Ismariza Johari, Shazlina Karim, Norizah Abd