Sb₂S₃@PPy Coaxial Nanorods: A Versatile and Robust Host Material for Reversible Storage of Alkali Metal Ions.

Yang Shi,Wen Luo,Liang He,Feng Li,Qing Ai,Yi Zhang

doi:10.3390/nano9040560

Abstract

Chalcogenides have attracted great attention as functional materials in optics, electronics, and energy-related applications due to their typical semiconductor properties. Among those chalcogenides, Sb2S3 holds great promise in energy storage field, especially as an anode material for alkali metal (Li, Na, and K) batteries. In this work, a one-dimensional coaxial Sb2S3@PPy is investigated as a versatile and robust anode in three kinds of alkali metal batteries for the first time, and the energy storage mechanism of these batteries is systematically discussed. As an anode material for sodium ion batteries (SIBs) and potassium ion batteries (KIBs), Sb2S3@PPy exhibits high reversible capacity and impressive cycle lifespan. Sb2S3@PPy anode demonstrates an adsorption behavior that has a significant influence on its sodium storage behavior, providing a universal model for studying the application of chalcogenide compounds.

Highlights

Chalcogenides are important inorganic materials with excellent optical and electrical properties
We systematically explored the electrochemical performances of Sb2S3@PPy nanorods as anode materials of alkali metal batteries, including lithium ion batteries (LIBs), sodium ion batteries (SIBs), and KIBs
The eSnbe2Srg3@yPsPtoyrcaogaeximalencahnaonriosmds whaads aa gcorenavteerlseicotrnorcehaecmtiiocanl apnedrfoarnmaalnlocyeiwngherneaacptipolnied[1i7n].KUIBnsl.ikTehethe sodeinuemrgsytosrtaograegperomceescsh,atnhiesrme wwaassaavocoltnavgeerspiloantforremactiinonthaencdhaarngeaallnodyidnigscrheaarcgtieocnu[r1v7e],.bUunt liitkwe atshenot as osobdviiuomussatosrtahgaetpinroLceIBsss,.tIhtesrienwitiaasl arevvoelrtasigbeleplcaatpfoarcmityinwthaes uchpatroge70an0dmdAishchga−rg1 eatcu0r.1veA, bgu−t1i,thwigahs er thannotthaossoebovfiorueps oarsttehdatSibn2SL3IBms.aIttesriinailtsi.al reversible capacity was up to 700 mAh g−1 at 0.1 A g−1, higher thaAnt tlhaosts,etohferpeperofrotremd aSnb2cSe3smoaf tSeIrBiaslsa.nd KIBs in our work were compared with the reported works

Summary

Introduction

Chalcogenides are important inorganic materials with excellent optical and electrical properties. They are widely applied in photocatalysis [1], supercapacitors [2], solar cells [3], and batteries [4,5,6]. As an important kind of chalcogenides, metal sulfide is one of the research hotspots in recent years. Chalcogenides have received extensive attention in the energy storage field owing to the ultra-high theoretical specific capacity. Hu et al [9] first reported FeS2 as an anode for sodium ion batteries (SIBs), and the assembled half cell showed excellent cycling performance (90% after 20,000 cycles) and rate performance (170 mAh g−1 at 20 A g−1)

Methods

Results

Conclusion