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Issue
Korean Chemical Engineering Research,
Vol.59, No.4, 557-564, 2021
H2S를 포함하는 연료를 사용하기 위한 고체산화물 연료전지용 Sr0.92Y0.08Ti1-xVxO3-δ연료극 특성
Characteristics of Sr0.92Y0.08Ti1-xVxO3-δ (x = 0.01, 0.04, 0.07, 0.12) Anode for Using H2S Containing Fuel in Solid Oxide Fuel Cells
장근영, 김준호, 모수인, 박광선, 윤정우
페로브스카이트 구조를 갖는 Sr0.92Y0.08Ti1-xVxO3-δ (SYTV)는 고체산화물 연료 전지(Solid oxide fuel cell, SOFC)에서 H2S를 포함하는 연료를 사용하기 위한 대체 연료극으로 연구되었다. Sr0.92Y0.08TiO3-δ (SYT)의 전기화학적 성능을 향상시키기 위해 페로브스카이트의 B-사이트에 위치한 티타늄을 바나듐으로 치환하였다. 페치니법을 통해 합성된 SYTV는 작동 온도 조건에서 추가적인 부산물의 형성 없이 YSZ(yttria-stabilized zirconia) 전해질과 화학적으로 안정했다. 바나듐의 치환량이 증가함에 따라 산소 공공 결함(Oxygen vacancy)이 증가하였으며, 생성된 산소 공공 결함으로 인해 연료극의 이온 전도도가 증가했다. 전지 성능은 850 °C 순수한 H2 연료 조건에서 바나듐 치환 정도에 따라 1 mol.%의 바나듐이 치환된 경우 19.30 mW/cm2 이고 7 mol.%의 바나듐이 치환된 경우 34.87 mW/cm2이다. 1000 ppm의 H2S를 포함하는 H2 연료조건에서 cell의 최대 전력밀도는 1 mol.%의 경우 22.34 mW/cm2이고 7 mol.%의 경우 73.11 mW/cm2로 증가하였다.
Sr0.92Y0.08Ti1-xVxO3-δ (SYTV) with perovskite structure was investigated as an alternative anode to utilize H2S containing fuels in solid oxide fuel cells. To improve the electrochemical performance of Sr0.92Y0.08TiO3-δ (SYT), vanadium(V) was substituted to titanium(Ti) at the B-site of the SYT perovskites. The SYTV synthesized by the Pechini method was chemically compatible with the YSZ electrolyte without additional by-products formation under the cell fabricating conditions. As increasing V substitution amounts, the oxygen vacancies increased, resulting to increasing ionic conductivity of the anode. The cell performance in pure H2 at 850 °C is 19.30 mW/cm² and 34.87 mW/cm2 for a 1 mol.% and 7 mol.% of V substituted anodes, respectively. The cell performance using H2 fuel containing 1000 ppm of H2S at 850 °C was 23.37 mW/cm² and 73.11 mW/cm2 for a 1 mol.% and 7 mol.% of V substituted anodes, respectively.
Keywords: Solid oxide fuel cells; Hydrogen sulfide; Sr0.92Y0.08Ti1-xVxO3-δ; Vanadium substitution; Alternative anode
[References]
  1. Singhal SC, Solid State Ion., 152, 405, 2002
  2. Steele BCH, Heinzel A, Nature, 414, 345, 2001
  3. Minh NQ, J. Am. Ceram. Soc., 76(3), 563, 1993
  4. Niakolas DK, Appl. Catal. A: Gen., 486, 123, 2014
  5. Kwak BH, Park J, Yoon H, Kim HH, Kim L, Chung JS, Korean J. Chem. Eng., 31(1), 29, 2014
  6. Yun JW, Yoon SP, Han J, Park S, Kim HS, Nam SW, J. Electrochem. Soc., 157(12), B1825, 2010
  7. Pujare NU, Semkow KW, Sammells AF, J. Electrochem. Soc., 134(10), 2639, 1987
  8. Pujare NU, Tsai KJ, Sammuells AF, J. Electrochem. Soc., 136(12), 2662, 1989
  9. Yates C, Winnick J, J. Electrochem. Soc., 146(8), 2841, 1999
  10. Liu M, Wei GL, Luo JL, Sanger AR, Chuang KT, J. Electrochem. Soc., 150(8), A1025, 2003
  11. Wei GL, Luo JL, Sanger AR, Chuang KT, J. Electrochem. Soc., 151(2), A232, 2004
  12. Devianto H, Yoon SP, Nam SW, Han J, Lim TH, J. Power Sources, 159(2), 1147, 2006
  13. He H, Gorte RJ, Vohs JM, Electrochem. Solid St., 8(6), A279, 2005
  14. Zha S, Tsang P, Cheng Z, Liu M, J. Solid State Chem., 178, 1844, 2005
  15. Li Y, Wang Z, Li J, Zhu X, Zhang Y, Huang X, Zhou Y, Zhu L, Lu Z, J. Alloy. Compd., 698, 794, 2017
  16. Abdalla AM, Hossain S, Azad AT, Petra PMI, Begum F, Eriksson SG, Azad AK, Renew. Sust. Energ. Rev., 82, 353, 2018
  17. Wang S, Liu M, Winnick J, J. Solid State Electr., 5(3), 188, 2001
  18. Marina OA, Canfield NL, Stevenson JW, Solid State Ion., 149(1-2), 21, 2002
  19. Yun JW, Ham HC, Kim HS, Song SA, Nam SW, Yoon SP, J. Electrochem. Soc., 160(2), F153, 2013
  20. Kim KIN, Kim HS, Kim HS, Yun JW, J. Ind. Eng. Chem., 68, 187, 2018
  21. Kim JH, Yun JW, J. Electrochem. Sci. Tech., 9(2), 133, 2018
  22. Park EK, Lee S, Yun JW, Appl. Surf. Sci., 429, 171, 2018
  23. Popa M, Kakihana M, Solid State Ion., 151(1-4), 251, 2002
  24. Bantawal H, Shenoy US, Bhat DK, Appl. Surf. Sci., 513, 145858, 2020
  25. Ji P, Gao X, Du X, Zheng C, Luo Z, Cen K, Catal. Sci. Technol., 6, 1187, 2016
  26. Kim GS, Lee BY, Accardo G, Ham HC, Moon J, Yoon SP, J. Power Sources, 423, 305, 2019
  27. Bantawal H, Shenoy US, Bhat DK, Appl. Surf. Sci., 513, 145858, 2020
  28. Cheng Z, “Investigations Into the Interactions Between Sulfur and Anodes for Solid Oxide Fuel Cells” (2008).
  29. Cheng Z, Zha SW, Aguilar L, Liu ML, Solid State Ion., 176(23-24), 1921, 2005
  30. Izaki M, Omi T, J. Electrochem. Soc., 143(3), L53, 1996
  31. Yentekakis IV, Vayenas CG, J. Electrochem. Soc., 136(4), 996, 1989
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