K. Park , H.Y. Hong , S.Y. Gwon , E.C. Jeon , M.F.M. Sabri
{"title":"Enhanced thermoelectric properties of Bi1.92Li0.08Sr2Co2Oy/x wt% SiC composites","authors":"K. Park , H.Y. Hong , S.Y. Gwon , E.C. Jeon , M.F.M. Sabri","doi":"10.1016/j.inoche.2024.113596","DOIUrl":null,"url":null,"abstract":"<div><div>In this work, Bi<sub>1.92</sub>Li<sub>0.08</sub>Sr<sub>2</sub>Co<sub>2</sub>O<em><sub>y</sub></em>/<em>x</em> wt% SiC (1.0 ≤ <em>x</em> ≤ 4.0 wt%) composites are fabricated through a solid-state reaction followed by spark plasma sintering. The resulting composites exhibit plate-like grains and high density. The addition of SiC nanoparticles reduces electrical conductivity due to decreased hole mobility and increases the Seebeck coefficient due to an enhanced scattering factor and effective mass. Furthermore, the incorporation of SiC nanoparticles significantly enhances phonon scattering, thereby reducing phonon thermal conductivity. The Bi<sub>1.92</sub>Li<sub>0.08</sub>Sr<sub>2</sub>Co<sub>2</sub>O<em><sub>y</sub></em>/2.0 wt% SiC composite exhibits the largest <em>ZT</em> of 0.17 at 973 K due to its high Seebeck coefficient and low thermal conductivity. Our results demonstrate that incorporating SiC nanoparticles is a highly effective strategy for enhancing the thermoelectric properties of Bi<sub>1.92</sub>Li<sub>0.08</sub>Sr<sub>2</sub>Co<sub>2</sub>O<em><sub>y</sub></em>.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"171 ","pages":"Article 113596"},"PeriodicalIF":4.4000,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Inorganic Chemistry Communications","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1387700324015867","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
引用次数: 0
Abstract
In this work, Bi1.92Li0.08Sr2Co2Oy/x wt% SiC (1.0 ≤ x ≤ 4.0 wt%) composites are fabricated through a solid-state reaction followed by spark plasma sintering. The resulting composites exhibit plate-like grains and high density. The addition of SiC nanoparticles reduces electrical conductivity due to decreased hole mobility and increases the Seebeck coefficient due to an enhanced scattering factor and effective mass. Furthermore, the incorporation of SiC nanoparticles significantly enhances phonon scattering, thereby reducing phonon thermal conductivity. The Bi1.92Li0.08Sr2Co2Oy/2.0 wt% SiC composite exhibits the largest ZT of 0.17 at 973 K due to its high Seebeck coefficient and low thermal conductivity. Our results demonstrate that incorporating SiC nanoparticles is a highly effective strategy for enhancing the thermoelectric properties of Bi1.92Li0.08Sr2Co2Oy.
期刊介绍:
Launched in January 1998, Inorganic Chemistry Communications is an international journal dedicated to the rapid publication of short communications in the major areas of inorganic, organometallic and supramolecular chemistry. Topics include synthetic and reaction chemistry, kinetics and mechanisms of reactions, bioinorganic chemistry, photochemistry and the use of metal and organometallic compounds in stoichiometric and catalytic synthesis or organic compounds.