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Tri-doped ceria (M0...
Tri-doped ceria (M0.2Ce0.8O2-δ, M= Sm0.1 Ca0.05 Gd0.05) electrolyte for hydrogen and ethanol-based fuel cells
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- Ullah, Muhammad Kaleem (författare)
- COMSATS University Islamabad
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- Raza, Rizwan (författare)
- COMSATS University Islamabad
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- Asghar, M. I. (författare)
- Aalto-Yliopisto,Aalto University
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- Ali, Amjad (författare)
- COMSATS University Islamabad
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- Rafique, Asia (författare)
- COMSATS University Islamabad
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- Abbas, Ghazanfar (författare)
- COMSATS University Islamabad
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- Ahmad, Muhammad Ashfaq (författare)
- COMSATS University Islamabad
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- Hanif, Imran, 1980 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Akbar, Muhammad (författare)
- COMSATS University Islamabad
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- Lund, P. D. (författare)
- Aalto-Yliopisto,Aalto University
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(creator_code:org_t)
- Elsevier BV, 2019
- 2019
- Engelska.
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Ingår i: Journal of Alloys and Compounds. - : Elsevier BV. - 0925-8388. ; 773, s. 548-554
- Relaterad länk:
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https://doi.org/10.1...
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https://research.cha...
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Abstract
Ämnesord
Stäng
- In recent scientific research, an interest has been gained significantly by rare earth metals such as cerium (Ce), samarium (Sm) and gadolinium (Gd) due to their use in fuel cells as electrolyte and catalysts. When used in an electrolyte, these materials lower the fuel cell's operating temperature compared to a conventional electrolyte, for example, yittria-stabilized zirconia (YSZ) which operates at a high temperature (≥800 °C). In this paper, the tri-doped ceria, M0.2Ce0.8O2-δ(M = Sm0.1Ca0.05Gd0.05) electrolyte powders was synthesized using the co-precipitation method at 80 °C. These dopants were used for CeO2with a total molar ratio of 1 M. Dry-pressed powder technique was used to make fuel cell pellets from the powder and placed them in the furnace to sinter at 700 °C for 60 min. Electrical conductivity of such a pellet in air was 1.2 × 10−2S cm−1at 700 °C measured by the ProboStat-NorECs setup. The crystal structure was determined with the help of X-ray diffraction (XRD), which showed that all the dopants were successfully doped in CeO2. Raman spectroscopy and UV-VIS spectroscopy were also carried out to analyse the molecular vibrations and absorbance, respectively. The maximum open-circuit voltages (OCVs) for hydrogen and ethanol fuelled at 550 °C were observed to be 0.89 V and 0.71 V with power densities 314 mW cm−2and 52.8 mW cm−2, respectively.
Ämnesord
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Keramteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Ceramics (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Nyckelord
- Hydrogen
- Ethanol
- Solid oxide fuel cells
- Tri-doped
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- Av författaren/redakt...
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Ullah, Muhammad ...
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Raza, Rizwan
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Asghar, M. I.
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Ali, Amjad
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Rafique, Asia
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Abbas, Ghazanfar
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visa fler...
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Ahmad, Muhammad ...
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Hanif, Imran, 19 ...
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Akbar, Muhammad
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Lund, P. D.
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visa färre...
- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Kemi
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och Oorganisk kemi
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- TEKNIK OCH TEKNOLOGIER
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TEKNIK OCH TEKNO ...
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och Materialteknik
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och Keramteknik
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- NATURVETENSKAP
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NATURVETENSKAP
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och Kemi
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och Materialkemi
- Artiklar i publikationen
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Journal of Alloy ...
- Av lärosätet
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Chalmers tekniska högskola