Znn3bq.jpeg
ÉÇÍ·´óѧº£Ñó¿ÆÑ§½ÓÊܵ÷¼Á
²é¿´: 390  |  »Ø¸´: 0

sz198756

гæ (ÕýʽдÊÖ)

[½»Á÷] Ë«¸ÆîÑ¿óÐÍPrBaCo2 xFexO5£©Òõ¼«²ÄÁϵĵ绯ѧºÍÈÈÁ¦Ñ§ÌØÐԵĵÄÑо¿

º«¹úεɽ¹úÁ¢¿Æ¼¼Ñ§Ôº Ë«¸ÆîÑ¿óÐÍPrBaCo2 xFexO5£¨x = 0ʱ£¬0.5£¬1£©Òõ¼«²ÄÁϵĵ绯ѧºÍÈÈÁ¦Ñ§ÌØÐԵĵÄÑо¿ ¡¶Journal of Power Sources ¡·
The effect of Fe substitution for Co on the thermodynamic and electrical properties of the double perovskites, PrBaCo2−xFexO5+ı (PBCF, x = 0, 0.5, 1), are investigated as cathode materials for intermediatetemperature solid oxide fuel cells (IT-SOFCs). At a given temperature, the electrical conductivity decreases with increasing Fe content, x, in the PBCF¨CYSZ composites in air. PBCF¨CYSZ (x = 1) composite appear to be more stable than PBCF¨CYSZ (x = 0) composite down to lower oxygen partial pressure, p(O2), at the same temperature. The higher oxidation enthalpies of the x = 1 composite can also explain the superior stability at roughly the same p(O2). The high entropy change for the x = 1 composite can indicate the high probability in the formation of interstitial oxygen at approximately the same p(O2). Impedance spectra of symmetrical cells (PBCF¨CYSZ/YSZ/PBCF¨CYSZ) show lower cathode polarization losses with increasing amounts of Fe. The maximum power densities of x = 0 composite and x = 0.5 composite are 0.68 and
0.72 W cm−2, respectively, at 973 K. The maximum power density of the x = 1 composite is, however, about 20% higher than that of the other composites. Considering redox stability and electrochemical performance, higher Fe content of PrBaCo2−xFexO5+ı (x = 1) is more suitable as a cathode material than x = 0
composite in IT-SOFC application.
Keywords:
Solid oxide fuel cells £¬Cathode£¬Double perovskite£¬Oxygen nonstoichiometry
£¬Thermodynamic property£¬Electrochemical performance
²¶»ñ123.PNG
»Ø¸´´ËÂ¥

» ±¾Ìû¸½¼þ×ÊÔ´Áбí

  • »¶Ó­¼à¶½ºÍ·´À¡£ºÐ¡Ä¾³æ½öÌṩ½»Á÷ƽ̨£¬²»¶Ô¸ÃÄÚÈݸºÔð¡£
    ±¾ÄÚÈÝÓÉÓû§×ÔÖ÷·¢²¼£¬Èç¹ûÆäÄÚÈÝÉæ¼°µ½ÖªÊ¶²úȨÎÊÌ⣬ÆäÔðÈÎÔÚÓÚÓû§±¾ÈË£¬Èç¶Ô°æÈ¨ÓÐÒìÒ飬ÇëÁªÏµÓÊÏ䣺xiaomuchong@tal.com
  • ¸½¼þ 1 : Choi-2012-Theelectrochemical.pdf
  • 2012-11-28 10:23:36, 1.57 M

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹ØÉ̼ÒÍÆ¼ö: (ÎÒÒ²ÒªÔÚÕâÀïÍÆ¹ã)

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ sz198756 µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] ÇóÖúµ÷¼Á£¬¿çµ÷ +13 XÊ®¸¦´çY 2026-04-11 14/700 2026-04-13 22:21 by zhq0425
[¿¼ÑÐ] Ò»Ö¾Ô¸¹þ¹¤´ó 085600 277 12²Ä¿Æ»ùÇóµ÷¼Á 5+5 chenny174 2026-04-10 36/1800 2026-04-13 22:17 by zhq0425
[¿¼ÑÐ] 291 Çóµ÷¼Á +33 »¯¹¤2026½ì±ÏÒµÉ 2026-04-09 33/1650 2026-04-13 22:16 by pies112
[¿¼ÑÐ] ÉúÎïÒ½Ò©µ÷¼Á£üSCIÖпÆÔºÈýÇøÒ»×÷+¶àÏî¿ÆÑгɹû +9 likangxing 2026-04-07 12/600 2026-04-13 21:35 by áÇá¼Ò©Í¯
[¿¼ÑÐ] Ò»Ö¾Ô¸211 0703»¯Ñ§ 346·ÖÇóµ÷¼Á +26 ÍÁ¶¹er? 2026-04-09 29/1450 2026-04-13 15:15 by ¶À×íÃι³Ç
[¿¼ÑÐ] ÉúÎïѧµ÷¼Á£¬Ò»Ö¾Ô¸Î÷ÄÏ´óѧ348£¬TopÆÚ¿¯Ò»Çø¶þ×÷¡¢¶þÇøÈý×÷£¬ÈýµÈ½±Ñ§½ðÈý´Î +5 candyyyi 2026-04-09 5/250 2026-04-13 09:02 by ¿Éµ­²»¿ÉÍü
[¿¼ÑÐ] Çóµ÷¼Á288 +7 ioodiiij 2026-04-10 9/450 2026-04-13 08:33 by Hayaay
[¿¼ÑÐ] 22408 352·ÖÇóµ÷¼Á +5 ŬÁ¦µÄÏÄÄ© 2026-04-09 5/250 2026-04-12 19:17 by wj165256
[¿¼ÑÐ] 295·ÖÇóµ÷¼Á +13 ?ÒªÉϰ¶? 2026-04-10 13/650 2026-04-12 15:37 by laoshidan
[¿¼ÑÐ] 352 Çóµ÷¼Á +6 yzion 2026-04-11 8/400 2026-04-11 16:24 by Ã÷Ô´ËʱÓÐ
[¿¼ÑÐ] 296Çóµ÷¼Á +6 Íô£¡£¿£¡ 2026-04-09 6/300 2026-04-11 11:25 by zhq0425
[¿¼ÑÐ] Ò»Ö¾Ô¸211£¬»¯Ñ§Ñ§Ë¶£¬310·Ö£¬±¾¿ÆÖصãË«·Ç£¬Çóµ÷¼Á +27 ŬÁ¦·Ü¶·112 2026-04-07 30/1500 2026-04-10 15:06 by Kilig0317
[¿¼ÑÐ] »úе»¹Óл¹ÓÐÃû¶îÂð£¿Ì«ÄÑÁË +6 ЦЦԬ 2026-04-10 6/300 2026-04-10 11:54 by ¸ßά´º
[¿¼ÑÐ] 314Çóµ÷¼Á +14 weltZeng 2026-04-09 14/700 2026-04-09 23:14 by wolf97
[¿¼ÑÐ] ²ÄÁÏר˶(0856) 339·ÖÇóµ÷¼Á +9 ¹þ¹þ¹þ¶ì¹þ¹þ¹þ 2026-04-09 10/500 2026-04-09 20:01 by Orcid
[¿¼ÑÐ] ¸´ÊÔµ÷¼Á£¬Ò»Ö¾Ô¸Ö£ÖÝ´óѧ²ÄÁÏÓ뻯¹¤289·Ö +31 ˶ÐǸ° 2026-04-08 31/1550 2026-04-09 16:54 by Delta2012
[¿¼ÑÐ] 349ѧ¿Æ»¯Ñ§045106Çóµ÷¼Á£¬»¯Ñ§Àà¶¼¿ÉÒÔ +8 ±£ºÃ¶®¶® 2026-04-08 8/400 2026-04-09 14:03 by xulei3024
[¿¼ÑÐ] 328Çóµ÷¼Á +17 lftmya 2026-04-07 18/900 2026-04-09 08:05 by 5268321
[¿¼ÑÐ] »úеר˶273ÇëÇóµ÷¼Á +6 ¸ýÉêÈÉÉê 2026-04-07 6/300 2026-04-08 22:41 by bljnqdcc
[¿¼ÑÐ] 22408 266Çóµ÷¼Á +11 masss11222 2026-04-07 14/700 2026-04-08 11:06 by yulian1987
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û