The electrolyte-layer free fuel cell using a semiconductor-ionic Sr2Fe1.5Mo0.5O6-δ – Ce0.8Sm0.2O2-δ composite functional membrane

Deng, Hui; Feng, Cheng; Zhang, Wei; Mi, Youquan; Wang, Xunying; Dong, Wenjing; Wang, Baoyuan

doi:10.1016/j.ijhydene.2017.08.113

Cited by 36 publications

(15 citation statements)

References 35 publications

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“…Several candidates have been suggested, e.g. Schottky junctions [37][38][39][40] and the formation of electron barriers or depletion zones due to p-n junctions [40][41][42][43] between the edges of the cell. State-of-the-art SLFCs and their suggested working principles are presented in detail in Subchapter 3.1.2.…”

Section: Single-layer Fuel Cellmentioning

confidence: 99%

“…Schottky barriers, i.e. contacts between metals and semiconductors, have been reported as well in SLFCs [37][38][39][40]. A model developed by Liu et al showed that the reaction depths for H2 and O2 are 1-2 orders of magnitude lower than the typical SLFC thickness, explaining why the gas mixing is not occurring even in porous SLFCs [42].…”

Section: Single-layer Fuel Cellmentioning

confidence: 99%

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Investigation of factors affecting the performance of a single-layer nanocomposite fuel cell

2021

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Section: Single-layer Fuel Cellmentioning

confidence: 99%

Section: Single-layer Fuel Cellmentioning

confidence: 99%

Investigation of factors affecting the performance of a single-layer nanocomposite fuel cell

2021

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“…NCAL -(La, Pr, Nd co-doped ceria) has achieved 1187 mW/cm 2 [19], LSCF -(Ca, Sm co-doped ceria) 1080 and 1000 mW/cm 2 in [21] and [22] respectively and NCAL -(Na 2 CO 3 -SDC) 1072 mW/cm 2 at 550 °C [16]. With single-doped ceria, the power densities are lower: 600 mW/cm 2 with Li 0.15 Ni 0.45 Zn 0.4 O (LNZ) -SDC [6], 655 mW/cm 2 with BSCF-SDC [25], 741 mW/cm 2 with Sm 0.5 Sr 0.5 CoO 3 -SDC [26] and 841 mW/cm 2 with Sr 2 Fe 1.5 Mo 0.5 O 6-δ -SDC [27] have been reported at °C.…”

Section: Introductionmentioning

confidence: 99%

Carbonate dual-phase improves the performance of single-layer fuel cell made from mixed ionic and semiconductor composite

Jouttijärvi

Yao

Asghar

et al. 2020

Preprint

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A mixed ionic and semiconducting composite in a single-layer configuration has been shown to work as a fuel cell at a lower temperature (500-600 oC) than a traditional solid-oxide fuel cell. The performance of a single-layer fuel cell (SLFC) is often limited by high resistive losses. Here, an eutectic mixture of alkali-carbonates was added to SLFC to improve the ionic conductivity. The dual-phase composite ionic conductor consisted of a ternary carbonate (sodium lithium potassium carbonate, NLKC) mixed with gadolinium-doped cerium oxide (GDC). Lithium nickel zinc oxide (LNZ) was used as the semiconducting material. The LNZ-GDC-NLKC SLFC reached a high power density, 582 mW/cm2 (conductivity 0.22 S/cm) at 600 °C, which is more than 30 times better than without the carbonate. The best results were obtained with the ternary carbonate which decreased the ohmic losses of the cell by more than 95%, whereas the SLFC with a binary carbonate (sodium lithium carbonate, NLC) showed a lower conductivity and performance (243 mW/cm2, 0.17 S/cm at 600°C). It is concluded that adding carbonates to LNZ-GDC will improve the ionic conductivity and positively contribute to the cell performance. These results suggest a potential path for further development of SLFCs, but also imply the need for efforts on up-scaling and stability to produce practical applications with SLFC.

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“…Also CuFe 2 O 4 [20] and different perovskites, such as La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3-δ (LSCF) [21][22][23][24], Ba 0.5 Sr 0.5 Co 0.8 Fe 0.2 O 3-δ (BSCF) [25] and Pr 0.4 Sr 0.6 Co 0.2-Fe 0.7 Nb 0.1 O 3 − δ [18] have been reported. The typical ionic conductors are based on doped ceria: GDC [5,7,15], Smdoped ceria (SDC) [6,14,[25][26][27], co-doped cerias [19,[21][22][23] and mixtures of doped ceria and alkali carbonates [8, 13, 16-18, 28, 29] have been reported. The doped ceria alkali carbonate mixture has been reported widely to improve the ionic conductivity of the electrolyte in threelayer fuel cells [30,31].…”

Section: Introductionmentioning

confidence: 99%

“…NCAL -(La, Pr, Nd co-doped ceria) has achieved 1187 mW/cm 2 [19], LSCF -(Ca, Sm co-doped ceria) 1080 and 1000 mW/ cm 2 in [21,22] respectively and NCAL -(Na 2 CO 3 -SDC) 1072 mW/cm 2 at 550°C [17]. With single-doped ceria, the power densities are lower: 600 mW/cm 2 with Li 0.15 Ni 0.45 Zn 0.4 O (LNZ) -SDC [6], 655 mW/cm 2 with BSCF-SDC [25], 741 mW/cm 2 with Sm 0.5 Sr 0.5 CoO 3 -SDC [26] and 841 mW/cm 2 with Sr 2 Fe 1.5 Mo 0.5 O 6-δ -SDC [27] have been reported at 550°C.…”

Section: Introductionmentioning

confidence: 99%

Carbonate dual-phase improves the performance of single-layer fuel cell made from mixed ionic and semiconductor composite

et al. 2020

View full text Add to dashboard Cite

A mixed ionic and semiconducting composite in a single-layer configuration has been shown to work as a fuel cell at a lower temperature (500-600°C) than a traditional solid-oxide fuel cell. The performance of a single-layer fuel cell (SLFC) is often limited by high resistive losses. Here, a eutectic mixture of alkali-carbonates was added to SLFC to improve the ionic conductivity. The dual-phase composite ionic conductor consisted of a ternary carbonate (sodium lithium potassium carbonate, NLKC) mixed with gadolinium-doped cerium oxide (GDC). Lithium nickel zinc oxide (LNZ) was used as the semiconducting material. The LNZ-GDC-NLKC SLFC reached a high power density, 582 mW/cm 2 (conductivity 0.22 S/cm) at 600°C, which is 30 times better than without the carbonate. The best results were obtained with the ternary carbonate which decreased the ohmic losses of the cell by more than 95%, whereas the SLFC with a binary carbonate (sodium lithium carbonate, NLC) showed a lower conductivity and performance (243 mW/cm 2 , 0.17 S/cm at 600°C). It is concluded that adding carbonates to LNZ-GDC will improve the ionic conductivity and positively contribute to the cell performance. These results suggest a potential path for further development of SLFCs, but also imply the need for efforts on up-scaling and stability to produce practical applications with SLFC.

show abstract

The electrolyte-layer free fuel cell using a semiconductor-ionic Sr2Fe1.5Mo0.5O6-δ – Ce0.8Sm0.2O2-δ composite functional membrane

Cited by 36 publications

References 35 publications

Investigation of factors affecting the performance of a single-layer nanocomposite fuel cell

Investigation of factors affecting the performance of a single-layer nanocomposite fuel cell

Carbonate dual-phase improves the performance of single-layer fuel cell made from mixed ionic and semiconductor composite

Carbonate dual-phase improves the performance of single-layer fuel cell made from mixed ionic and semiconductor composite

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