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The Exploration of Cerium Metal Ions Effect on LaSrTiO3 – δ Ceramic Anode for Fuel Cell

  • ELECTROCHEMISTRY. GENERATION AND STORAGE OF ENERGY FROM RENEWABLE SOURCES
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Abstract

Perovskite based materials have become an attractive anode for fuel cell due to the significant conductivity, carbon resistivity and sulphur tolerance. Doping of Ce on B-site of the La0.4Sr0.6CexTi1−xO\(_{{3-\delta }}\) (x = 0.02, 0.04, 0.06, 0.08) with different dopant concentrations is prepared using sol-gel technique. The synthesized material is analyzed by numerous techniques. X-ray diffraction confirmed the cubic perovskite structure (JCPDS 01-079- 0183) with average crystallite size of 35 nm. UV–Vis spectroscopy revealed the red shift in band gap (2.76 eV) compared to LaSrTiO\(_{{3-\delta }}\). Scanning electron microscopy shows the homogeneity and porosity in the prepared material. The observed particle size is in the range of 50–60 nm. The presence of the lanthanum, strontium, cerium, titanium and oxygen ions is confirmed by EDX. The Raman spectra and XRD, confirmed that cerium ions have been diffused in the lattice structure of LSTO\(_{{3-\delta }}\). The La0.4Sr0.6Ce0.08Ti0.92O\(_{{3-\delta }}\) anode showed the highest conductivity of 2.67 S cm–1 with lower activation energy of 0.20 eV as compared to other three samples. The power density of 58 mW cm–2 at 600°C with 0.9 V OCV is achieved for the composition La0.4Sr0.6Ce0.08Ti0.92O\(_{{3-\delta }}\) using sub-bituminous fuel. The observed results show that prepared material is potential ceramic anode for direct carbon fuel cell.

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Funding

This work was supported by Punjab Higher Education Commission (PHEC) through PIRCA research Grant no. PHEC/ARA/PIRCA/20372/17.

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Authors and Affiliations

  1. Department of Physics, University of Okara, 56300, Okara, Pakistan

    Muhammad Farhan & Amjad Ali

  2. Clean Energy Research Lab (CERL), Department of Physics, COMSATS University Islamabad, 54000, Lahore Campus, Pakistan

    Amjad Ali & Rizwan Raza

  3. National Institute of Lasers and Optronics College, Pakistan Institute of Engineering and Applied Sciences, 45650, Nilore, Islamabad, Pakistan

    Zulfiqar Ali

  4. Department of Physics, Chemistry and Biology (IFM), Linköping University, 581 83, Linköping, Sweden

    Rizwan Raza

Authors
  1. Muhammad Farhan
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  2. Amjad Ali
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Correspondence to Amjad Ali.

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Farhan, M., Ali, A., Ali, Z. et al. The Exploration of Cerium Metal Ions Effect on LaSrTiO3 – δ Ceramic Anode for Fuel Cell. Russ. J. Phys. Chem. 97, 2592–2602 (2023). https://doi.org/10.1134/S0036024423110249

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  • DOI: https://doi.org/10.1134/S0036024423110249

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