2022Äê8ÔÂ23ÈÕ£¬Ç廪´óѧÖ÷°ìµÄÄÜԴѧÊõÆÚ¿¯Nano Research Energy£¨https://www.sciopen.com/journal/2790-8119 £©±àί¡¢Ïæ̶´óѧÁõÒæ½­¸±½ÌÊÚ¿ÎÌâ×éÌá³öÒ»ÖÖ¼òµ¥ÓÐЧµÄԭλÖƱ¸Fe₃NºÍFeCoÄÉÃ׿ÅÁ£ÐÞÊεÄÔÓ»¯Ì¼²ÄÁϵķ½·¨²¢ÓÃÓÚ¸ßЧÑõ»¹Ô­´ß»¯·´Ó¦¡£ÂÛÎÄÌâĿΪ¡°Metal-coordinated porous polydopamine nanospheres derived Fe₃N-FeCo encapsulated N-doped carbon as a highly efficient electrocatalyst for oxygen reduction reaction¡±¡£

ͼ1. (a) Fe₃N-FeCo@NCµÄÖƱ¸Ê¾Òâͼ£»Fe₃N-FeCo@NCµÄTEM (b)ºÍHRTEM (c)ÕÕƬ£»Fe₃N-FeCo@NCµÄLSVÇúÏß(d)£»»ùÓÚFe₃N-FeCo@NCµÄп¿Õµç³ØµÄ¹¦ÂÊÃÜ¶È (e)¡£

Ñõ»¹Ô­·´Ó¦(ORR)ÊǽðÊô¿ÕÆøµç³ØµÄÖØÒª°ë·´Ó¦£¬µ«ÊÇ·´Ó¦¶¯Á¦Ñ§³Ù»º¡£Pt»ù´ß»¯¼ÁÄÜÓÐЧÌáÉýORR¶¯Á¦Ñ§£¬µ«´æÔÚÎȶ¨ÐԵ͡¢×ÊÔ´½ôȱ¡¢¼Û¸ñ°º¹óµÈÎÊÌâ£¬ÏÞÖÆÁ˽ðÊô¿ÕÆøµç³ØµÄÉÌÒµ»¯Ó¦Óá£Òò´Ë£¬¿ª·¢·Ç¹ó½ðÊôORR´ß»¯¼ÁÖÁ¹ØÖØÒª¡£ÔÚÒÑ¿ª·¢µÄ¸÷Öַǹó½ðÊô´ß»¯¼ÁÖÐ£¬½ðÊôµª»¯Îï²ôÔÓµÄ̼²ÄÁÏ£¨MN_x-C£©ÒòΪÆä¸ßµ¼µçÐÔ¡¢ÓÅÒìµÄÑõ»¹Ô­´ß»¯»îÐԺ;­¼ÃÊÊÓÃÐÔ±»ÈÏΪÊÇ×îÓпÉÄÜÈ¡´úPt»ù´ß»¯¼ÁµÄÒ»Àà²ÄÁÏ¡£ÆäÖÐ£¬µª»¯Ìú£¨Fe₃N£©ÐÞÊεÄ̼²ÄÁÏ£¨Fe₃N-C£©¾ßÓпÉÓëPt/CæÇÃÀµÄORR´ß»¯»îÐÔ¡£È»¶ø£¬ÐγÉFe₃N¿ÅÁ£Í¨³£ÐèÒª¸ßΰ±»¯£¬Õâ²»½öÔö¼ÓÁËÖƱ¸³É±¾Ò²´æÔÚ°²È«Òþ»¼¡£ÈçºÎͨ¹ý·Ç¸ßΰ±»¯·½·¨À´ÖƱ¸Fe₃NÄÉÃ׿ÅÁ£ÐÞÊεÄ̼²ÄÁϲ¢ÏÔÖøÌáÉýÆäORR´ß»¯»îÐÔ³ÉΪÁËеĹØ×¢µã¡£

Òò´Ë£¬ÁõÒæ½­¿ÎÌâ×éÌá³öÒ»ÖÖ¼òµ¥ÓÐЧµÄԭλÖƱ¸Fe₃NºÍFeCoÄÉÃ׿ÅÁ£ÐÞÊεÄÔÓ»¯Ì¼²ÄÁϵķ½·¨²¢ÓÃÓÚ¸ßЧÑõ»¹Ô­´ß»¯·´Ó¦¡£Ê×ÏÈ£¬Í¨¹ýÈéÒº×é×°ºÍ×Ծۺϵķ½·¨ÖƱ¸Á˶à¿×¾Û¶à°Í°·½ðÊôÄÉÃ×Çò£¨ÈçFe-PDA@Co£©£¬ËæºóÀûÓþ۶à°Í°·¡¢½ðÊôÓëÈý¾ÛÇè°·µÄÏ໥×÷ÓÃÔÚ¾Û¶à°Í°·½ðÊôÄÉÃ×Çò±íÃæ°ü¸²Èý¾ÛÇè°·µÃµ½Fe-PDA@Co@melamineÂçºÏÎï£¬×îºóͨ¹ý¸ßÎÂÈȽâµÃµ½Fe₃NºÍFeCoÐÞÊεĶà¿×̼ÇòºÍ̼ÄÉÃ×Ƭ¹²´æµÄÔÓ»¯Ì¼²ÄÁÏFe₃N-FeCo@NC¡£ÔÚ±¾¹¤×÷Öв»ÐèÒª¾­¹ý¸ßΰ±»¯¼´¿ÉԭλÐγÉFe₃NÄÉÃ׿ÅÁ££¬ÕâÖ÷ÒªµÃÒæÓÚÈéÒº×é×°ºÍ×Ô¾ÛºÏÏà½áºÏµÄ²ßÂÔ£¬Ê¹Ìú¾ùÔÈ·ÖÉ¢ÔÚ¾Û¶à°Í°·¶à¿×ÇòÖÐ£¬Í¬Ê±Èý¾ÛÇè°·ÓëÌúÒ²ÓÐÏ໥×÷ÓÃ£¬Òò´Ë²»ÐèÒª¶îÍâµÄ¸ßΰ±»¯¡£Fe₃N-FeCo@NC¾ßÓнϴóµÄ±È±íÃæ»ýºÍ¶à¼¶¿×½á¹¹£¬Í¬Ê±¾ßÓÐFe₃N¡¢FeCo¡¢M-N_xµÈ»îÐÔÖÖ£¬Òò´Ë¾ßÓÐÓÅÒìµÄÑõ»¹Ô­µç´ß»¯»îÐÔ¡£ÔÚ0.1M KOH½éÖÊÖÐ£¬Fe₃N-FeCo@NCµÄÆðʼµçλΪ1.05 V£¬°ë²¨µçλΪ0.89 V£¬³¬¹ýPt/CµÄÆðʼµç루0.97 V£©ºÍ°ë²¨µç루0.85 V£©£¬Ò²Ô¶Ô¶³¬¹ý²Î±ÈÑùÆ·Fe/NC£¨Ç°ÇýÌå²»º¬CoºÍÈý¾ÛÇè°·£©ºÍFe,Co/NC£¨Ç°ÇýÌå²»º¬Èý¾ÛÇè°·£©£¬ÊÇÄ¿Ç°MN_x-C²ÄÁÏ ORRÐÔÄܵÄ×î¸ßÖµÖ®Ò»¡£´ËÍâ£¬Fe₃N-FeCo@NCµÄÎȶ¨ÐԺͿ¹¼×´¼ÐÔÄÜÒ²Ô¶Ô¶³¬¹ýPt/C¡£»ùÓÚFe₃N-FeCo@NCΪ¿ÕÆøÒõ¼«µÄп¿ÕÆøµç³ØµÄ¿ªÂ·µçѹΪ1.50 V£¬¹¦ÂÊÃܶȴï141 mW¡¤cm^?2£¬±ÈÈÝÁ¿Îª806.6 mAh¡¤g^?1Zn£¬ÏÔÖø¸ßÓÚPt/C×é×°µÄµç³Ø£¨¿ªÂ·µçѹΪ1.48 V£¬¹¦ÂÊÃܶÈ113 mW¡¤cm^?2£¬±ÈÈÝÁ¿Îª660.6 mAh¡¤g^?1Zn£©¡£Í¬Ê±£¬»ùÓÚFe₃N-FeCo@NCµÄп¿ÕÆøµç³Ø¾ßÓÐÓÅÒìµÄ±¶ÂÊÐÔÄܺÍÎȶ¨ÐÔ¡£ÒÔÉϽá¹û±íÃ÷Fe₃N-FeCo@NCÊÇÒ»ÖÖ¸ßЧÇÒÎȶ¨µÄORRµç´ß»¯¼Á£¬ÓÐÀûÓÚÍƽøп¿Õµç³ØµÄʵ¼ÊÓ¦Óá£

Ïà¹ØÂÛÎÄÐÅÏ¢£º

Guo, F. J.; Zhang, M. Y.; Yi, S. C.; Li, X. X.; Xin, R.; Yang, M.; Liu, B.; Chen, H. B.; Li, H. M.; Liu, Y. J. Metal-coordinated porous polydopamine nanospheres derived Fe3N-FeCo encapsulated N-doped carbon as a highly efficient electrocatalyst for oxygen reduction reaction. Nano Res. Energy 2022, 1: e9120027. DOI: 10.26599/NRE.2022.9120027. https://doi.org/10.26599/NRE.2022.9120027 .

×÷ΪNano Researchæ¢Ãÿ¯£¬Nano Research Energy (ISSN: 2791-0091; e-ISSN: 2790-8119; ¹ÙÍø: https://www.sciopen.com/journal/2790-8119)ÓÚ2022Äê3Ô´´¿¯£¬ÓÉÇ廪´óѧÇúÁ¼Ìå½ÌÊÚºÍÏã¸Û³ÇÊдóѧ֧´ºÒå½ÌÊÚ¹²Í¬µ£ÈÎÖ÷±à¡£Nano Research EnergyÊÇÒ»±¾¹ú¼Ê»¯µÄ¶àѧ¿Æ½»²æ£¬È«Ó¢ÎÄ¿ª·Å»ñÈ¡ÆÚ¿¯£¬¾Û½¹ÄÉÃײÄÁϺÍÄÉÃ׿Æѧ¼¼ÊõÔÚÐÂÐÍÄÜÔ´Ïà¹ØÁìÓòµÄÇ°ÑØÑо¿ÓëÓ¦ÓÃ£¬¶Ô±ê¹ú¼Ê¶¥¼¶ÄÜÔ´ÆÚ¿¯£¬ÖÂÁ¦ÓÚ·¢±í¸ßˮƽµÄÔ­´´ÐÔÑо¿ºÍ×ÛÊöÀàÂÛÎÄ¡£2023Äê֮ǰÃâÊÕAPC·ÑÓÃ£¬»¶Ó­¸÷λÀÏʦӻԾͶ¸å¡£Í¶¸åÇëÁªÏµ£ºNanoResearchEnergy@tup.tsinghua.edu.cn.