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| 001 | 837636 | ||
| 005 | 20240711113729.0 | ||
| 024 | 7 | _ | |a 10.1016/j.tsf.2017.06.038 |2 doi |
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| 100 | 1 | _ | |a Engels, J. |0 P:(DE-Juel1)164145 |b 0 |
| 245 | _ | _ | |a Thin film proton conducting membranes for micro-solid oxide fuel cells by chemical solution deposition |
| 260 | _ | _ | |a Amsterdam [u.a.] |c 2017 |b Elsevier |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 520 | _ | _ | |a Micro solid oxide fuel cells (μ-SOFC) were manufactured with perovskite type proton conductors on silicon substrates and with structured Pt-grid electrodes. In order to miniaturize the μ-SOFCs and to shorten the ion path through the electrolyte, the thin film proton conductors were only ~ 510 nm thick. The thin films consist of 10 mol% yttrium-doped BaZrO3 (BZY10) and they were deposited by means of chemical solution deposition (CSD). CSD was applied, because it represents a highly attractive fabrication method, considering the relatively low investment costs and flexibility with regard to stoichiometry. The backsides of the μ-SOFCs on the substrates were opened by wet chemical and plasma etching to form the freestanding membranes. The completed μ-SOFCs resist up to a temperature of 450 °C. Their electrical properties, such as permittivity, and resistivity were investigated. By means of electrochemical impedance spectroscopy (EIS) in the temperature range of 100 °C to 450 °C, the resistivity properties and the activation energies of the model μ-SOFC were studied with humid hydrogen in nitrogen at the anode and different oxygen partial pressures at the cathode. The results provide a clear hint for a dominating protonic defect transport mechanism in the electrolyte. In the 450 °C measurement, the model μ-SOFCs reached an open circuit voltage of 600 mV with 100% oxygen at the cathode and humid hydrogen in nitrogen at the anode. |
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| 700 | 1 | _ | |a Griesche, D. |0 P:(DE-HGF)0 |b 1 |
| 700 | 1 | _ | |a Waser, R. |0 P:(DE-Juel1)131022 |b 2 |
| 700 | 1 | _ | |a Schneller, T. |0 P:(DE-HGF)0 |b 3 |e Corresponding author |
| 773 | _ | _ | |a 10.1016/j.tsf.2017.06.038 |g Vol. 636, p. 446 - 457 |0 PERI:(DE-600)1482896-0 |p 446 - 457 |t Thin solid films |v 636 |y 2017 |x 0040-6090 |
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