氮掺杂多孔碳/FeS复合催化剂的制备及其电催化性能研究
Preparation of N-doped porous carbon supported FeS composite catalyst and study on its electrochemical property
A N-doped porous carbon-supported FeS nanoparticles electrocatalyst is synthesized via the simple freeze drying and pyrolysis processes by using glucose,dicyandiamide,ferrous sulphate and thiourea as carbon,nitrogen,iron and sulfur sources,respectively,as well as NaCl as a template.The results indicate that the synthesized porous carbon catalyst has a high specific surface area and abundant pore structure,which provides more active sites for electrochemical reaction,makes the supported FeS nanoparticles disperse uniformly,and prevents FeS from agglomeration.Thanks to the above advantages,the catalyst exhibits superior electrochemical activity and stability in both oxygen reduction reaction (ORR) and oxygen evolution reaction (OER).Furthermore,the zinc-air battery fabricated with this catalyst achieves a high power density of 123 mW·cm-2 and an excellent cycling stability.
Zn-Air battery / oxygen reduction reaction / oxygen evolution reaction / porous carbon materials
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塔里木大学校长自然科学基金项目(TDZKSS202322)
塔里木大学校长自然科学基金项目(TDZKSS202325)
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