Enhanced thermoelectric properties of Bi1.92Li0.08Sr2Co2Oy/x wt% SiC composites

IF 4.4 3区 化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR
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 ,&nbsp;H.Y. Hong ,&nbsp;S.Y. Gwon ,&nbsp;E.C. Jeon ,&nbsp;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.

Abstract Image

Bi1.92Li0.08Sr2Co2Oy/x wt% SiC复合材料热电性能增强
在本研究中,通过固相反应和放电等离子烧结制备了Bi1.92Li0.08Sr2Co2Oy/x wt% SiC(1.0≤x≤4.0 wt%)复合材料。所得到的复合材料具有板状晶粒和高密度。SiC纳米颗粒的加入由于降低了空穴迁移率而降低了电导率,并且由于散射系数和有效质量的增强而增加了塞贝克系数。此外,SiC纳米颗粒的掺入显著增强了声子散射,从而降低了声子的导热性。Bi1.92Li0.08Sr2Co2Oy/2.0 wt% SiC复合材料由于具有较高的塞贝克系数和较低的导热系数,在973 K时ZT最大,为0.17。我们的研究结果表明,加入SiC纳米颗粒是提高Bi1.92Li0.08Sr2Co2Oy热电性能的有效策略。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Inorganic Chemistry Communications
Inorganic Chemistry Communications 化学-无机化学与核化学
CiteScore
5.50
自引率
7.90%
发文量
1013
审稿时长
53 days
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.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信