H2S Solid oxide fuel cell based on a modified Barium cerate perovskite proton conductor

Winie, Tan; Zhong, Qin; Miao, Ming; Qu, Hongxia

doi:10.1007/s11581-008-0278-0

Cited by 18 publications

(8 citation statements)

References 19 publications

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“…In the second part of this manuscript, the diffraction, Raman, IR, TGA results obtained for four different proton conducting perovskite high dense ceramics: BaZr 0.9 Yb 0.1 O 3−δ (BZ:Yb), SrZr 0.9 Yb 0.1 O 3−δ (SZ:Yb), BaZr 0.25 In 0.75 O 3−δ (BZ:In) and BaCe 0.5 Zr 0.3 Y 0.16 Zn 0.04 O 3−δ (BCZ:Y,Zn) will be presented in order to compare their stability aspects. These perovskite compositions are widely studied by many academic and industrial groups up to the demonstrator scale [ 6 , 9 , 12 , 13 , 14 , 15 , 16 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 ]. They appear promising candidates for various electrochemical applications where a combination of high conductivity and high stability is required.…”

Section: Introductionmentioning

confidence: 99%

Testing the Chemical/Structural Stability of Proton Conducting Perovskite Ceramic Membranes by in Situ/ex Situ Autoclave Raman Microscopy

et al. 2013

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Ceramics, which exhibit high proton conductivity at moderate temperatures, are studied as electrolyte membranes or electrode components of fuel cells, electrolysers or CO2 converters. In severe operating conditions (high gas pressure/high temperature), the chemical activity towards potentially reactive atmospheres (water, CO2, etc.) is enhanced. This can lead to mechanical, chemical, and structural instability of the membranes and premature efficiency loss. Since the lifetime duration of a device determines its economical interest, stability/aging tests are essential. Consequently, we have developed autoclaves equipped with a sapphire window, allowing in situ Raman study in the 25–620 °C temperature region under 1–50 bar of water vapor/gas pressure, both with and without the application of an electric field. Taking examples of four widely investigated perovskites (BaZr0.9Yb0.1O3−δ, SrZr0.9Yb0.1O3−δ, BaZr0.25In0.75O3−δ, BaCe0.5Zr0.3Y0.16Zn0.04O3−δ), we demonstrate the high potential of our unique set-up to discriminate between good/stable and instable electrolytes as well as the ability to detect and monitor in situ: (i) the sample surface reaction with surrounding atmospheres and the formation of crystalline or amorphous secondary phases (carbonates, hydroxides, hydrates, etc.); and (ii) the structural modifications as a function of operating conditions. The results of these studies allow us to compare quantitatively the chemical stability versus water (corrosion rate from ~150 µm/day to less than 0.25 µm/day under 200–500 °C/15–80 bar PH2O) and to go further in comprehension of the aging mechanism of the membrane.

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Section: Introductionmentioning

confidence: 99%

Testing the Chemical/Structural Stability of Proton Conducting Perovskite Ceramic Membranes by in Situ/ex Situ Autoclave Raman Microscopy

et al. 2013

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“…The summation of Reaction (4), Reaction (5), and Reaction (7) yields the same overall reaction as in Reaction (6). Thus, Reaction ( 6) is considered the dominant reaction in the operation of SOFC with H2S/air at 1100 K and 1 atm.…”

Section: Electrochemical Modelmentioning

confidence: 99%

“…Although it is effective in treating H 2 S to protect human health, quite a little value is extracted from H 2 S through the Claus process. [1,[6][7][8][9] Overall, this method produces elemental sulfur along with low-grade steam through the partial oxidation of H 2 S with air. [10] Instead of the low-grade steam, it would be possible to generate electrical power and high-grade steam if the combustion furnace in the first step of the Claus process is replaced by H 2 S/air-fed solid oxide fuel cell (SOFC).…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Modeling and Performance Assessment of H₂S/Air Solid Oxide Fuel Cell

et al. 2020

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Hydrogen sulfide (H2S) is an abundantly present, corrosive, and noxious compound. Though the Claus process is effective in processing H2S, it extracts minimal energy from H2S. Solid oxide fuel cell (SOFC) can harvest the chemical energy of H2S to generate electric power. For practical implementations, the performance of H2S/air SOFCs and the potential losses in the system are determined. The present study aims to develop the complete electrochemical model of H2S/air SOFC system and to analyze its performance. The theoretical cell potential of H2S/air SOFC is determined, and the deviations from the theoretical cell potential due to polarization are studied. According to the results, H2S/air SOFC generates electric power with energetic, exergetic, and voltaic efficiencies of 59.0%, 43.0%, and 89.7%, respectively, at atmospheric pressure and a temperature of 1100 K. Further efficiencies can be achieved if the output heat is utilized for useful applications. Moreover, the SO2 formed by the electrochemical reactions in SOFC can be recovered as elemental sulfur or sulfuric acid as an additional useful commodity. In brief, this study demonstrates the performance of H2S/air SOFC to serve as a basis for the implementation of H2S/air SOFC toward eliminating the environmental impact of H2S and converting it into electric power.

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“…There are some applications of such systems as use of sulfur dioxide in Li-SO 2 batteries for space applications [11], and use of sulfur dioxide in the gas electrochemical cells [12]. Hydrogen sulfide is widely investigated in high-temperature fuel cells as well [2,4,[13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Using Sulfur-Containing Gases in Low-Temperature Fuel Cell at Sulfuric Acid Production Site

Duysebaev¹,

Abramov²,

Berstenev³

et al. 2014

Eur Chem Tech J

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The possibility and effectiveness of using sulfur dioxide and hydrogen sulfide as the fuel in lowtemperature fuel cells at the sulfuric acid production site has been investigated. A fuel cell has been designed and constructed using palladium as a catalyst, which enables conversion of the energy of oxidation of sulfur dioxide and hydrogen sulfide to the electric energy. The experimental data showed that the use of hydrogen sulfide and sulfur dioxide as a fuel allows achieving the power of 1.0 and 0.5 mW, respectively. The comparative studies with the use of hydrogen in the same fuel cell resulted in the power of about 2.0 mW, i.e. the use of hydrogen sulfide delivers a performance comparable with that of the hydrogen. The processes of oxidizing of the sulfur containing gases are used in our company in production of sulfuric acid. Oxidation of these gases conducted using the conventional technological processes. The use of these processes to produce energy as a byproduct could be an attractive way to reduce the energy consumption of the whole process. Considering the relatively high power obtained in this work for the sulfur containing gases fed fuel cells, the substitution of conventional oxidation of sulfur containing gases in this technological chain by the fuel cell oxidation, and by-producing the electric energy, could be very profitable for the energy efficiency enhancement of the main production process. In the future work, the design and development of fuel cell catalysts and membranes to enhance the performances of sulfur containing fuel cells will be significant.

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H2S Solid oxide fuel cell based on a modified Barium cerate perovskite proton conductor

Cited by 18 publications

References 19 publications

Testing the Chemical/Structural Stability of Proton Conducting Perovskite Ceramic Membranes by in Situ/ex Situ Autoclave Raman Microscopy

Testing the Chemical/Structural Stability of Proton Conducting Perovskite Ceramic Membranes by in Situ/ex Situ Autoclave Raman Microscopy

Electrochemical Modeling and Performance Assessment of H₂S/Air Solid Oxide Fuel Cell

Investigation of Using Sulfur-Containing Gases in Low-Temperature Fuel Cell at Sulfuric Acid Production Site

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H2S Solid oxide fuel cell based on a modified Barium cerate perovskite proton conductor

Cited by 18 publications

References 19 publications

Testing the Chemical/Structural Stability of Proton Conducting Perovskite Ceramic Membranes by in Situ/ex Situ Autoclave Raman Microscopy

Testing the Chemical/Structural Stability of Proton Conducting Perovskite Ceramic Membranes by in Situ/ex Situ Autoclave Raman Microscopy

Electrochemical Modeling and Performance Assessment of H2S/Air Solid Oxide Fuel Cell

Investigation of Using Sulfur-Containing Gases in Low-Temperature Fuel Cell at Sulfuric Acid Production Site

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Electrochemical Modeling and Performance Assessment of H₂S/Air Solid Oxide Fuel Cell