文献类型：期刊文献

中文题名：Ion exchange coupled biomineral self-sacrificial template synthesis of N-enriched porous carbon as robust electrocatalyst for rechargeable Zn-air battery

英文题名：Ion exchange coupled biomineral self-sacrificial template synthesis of N-enriched porous carbon as robust electrocatalyst for rechargeable Zn-air battery

作者：Xiao, Xiao[1,2];Zhao, Hui[1,2];Li, Lin-Feng[1,2];Qu, Bing-Liang[1,2];Wu, Yu-Lian[1];Zhu, Yin-Ling[1];Chen, Bei-Bei[3];Pan, Gang[2,4]

机构：[1]Guangdong Ocean Univ, Sch Chem & Environm, Zhanjiang 524088, Peoples R China;[2]Guangdong Ocean Univ, Res Ctr Coastal Environm Protect & Ecol Resilience, Zhanjiang 524088, Peoples R China;[3]Guangdong Ocean Univ, Coll Coastal Agr Sci, Zhanjiang 524088, Peoples R China;[4]York St John Univ, Sch Humanities, Lord Mayors Walk, York YO31 7EX, North Yorkshire, England

年份：2023

卷号：42

期号：4

起止页码：1186

中文期刊名：Rare Metals

外文期刊名：RARE METALS

收录：SCI-EXPANDED(收录号：WOS:000917102700003)、CSTPCD、、EI(收录号：20230313407935)、CSCD2023_2024、Scopus(收录号：2-s2.0-85146395933)、WOS、CSCD、PubMed

基金：AcknowledgementsThis study was financially supported by the Innovative Youth Talents of Guangdong Education Department Support Program (No. 2021KQNCX027), the Youth Innovative Talents Project of Zhanjiang (No. 2021E05016) and the Program for Scientific Research Start-Up Funds of Guangdong Ocean University (Nos. 060302122010 and R19047).

语种：英文

中文关键词：Rechargeable Zn-air battery(RZAB);Bifunctional electrocatalyst;N-enriched porous carbon;Biomineral self-sacrificial template;Ion exchange

外文关键词：Rechargeable Zn-air battery (RZAB); Bifunctional electrocatalyst; N-enriched porous carbon; Biomineral self-sacrificial template; Ion exchange

中文摘要：To realize the commercialize of rechargeable Zn-air battery(RZAB),developing metal-free bifunctional electrocatalysts with satisfactory activity for oxygen reduction reaction(ORR)and oxygen evolution reaction(OER)is one of the emerging issues.Herein,a prawn shells-derived N-enriched porous carbon(PSNC)is synthesized via an ion exchange coupled biomimetic selfsacrificing template strategy.The resulting PSNC displays unique functional components,including the interconnected macro-meso-micropores structure to shorten charge and mass transfer pathway,high content of pyridinic and graphitic nitrogen to construct rich catalytic active site and improve conductivity.As electrocatalysts in alkaline condition,the optimized PSNC-0.8 achieves excellent bifunctional catalytic propriety with a narrow potential gap(ΔE)value of 0.80 V.Meanwhile,PSNC-0.8-based RZAB displays a high peak power density of 176.5 mW·cm^(-2)and considerable cycling durability with a small battery efficiency delay of 6.5%after 480 cycles(320 h).This study enlightens a simple and effective conception to design high-performance metal-free bifunctional electrocatalysts from seafood waste.

外文摘要：To realize the commercialize of rechargeable Zn-air battery (RZAB), developing metal-free bifunctional electrocatalysts with satisfactory activity for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is one of the emerging issues. Herein, a prawn shells-derived N-enriched porous carbon (PSNC) is synthesized via an ion exchange coupled biomimetic self-sacrificing template strategy. The resulting PSNC displays unique functional components, including the interconnected macro-meso-micropores structure to shorten charge and mass transfer pathway, high content of pyridinic and graphitic nitrogen to construct rich catalytic active site and improve conductivity. As electrocatalysts in alkaline condition, the optimized PSNC-0.8 achieves excellent bifunctional catalytic propriety with a narrow potential gap (delta E) value of 0.80 V. Meanwhile, PSNC-0.8-based RZAB displays a high peak power density of 176.5 mW center dot cm(-2) and considerable cycling durability with a small battery efficiency delay of 6.5% after 480 cycles (320 h). This study enlightens a simple and effective conception to design high-performance metal-free bifunctional electrocatalysts from seafood waste.