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Journal:Nano Energy
Abstract:Copper sulfide has received wide attention as a potential thermoelectric material with high performance and abundant resource. While the liquid-like Cu ions play an important role for the low κL and high ZT values, grain-boundary engineering is needed to further enhance the phonon scattering and the thermal stability of Cu2-xS. Here, we introduced the 3D graphene heterointerface into the Cu2-xS matrix by a facile technique combining mechanical alloying (MA) and spark plasma sintering (SPS). A significant ZT enhancement was realized with the highest ZT up to 1.56 and a high power factor of 1197 μW m−1 K−2 at 873 K in the sample with 0.75 wt% graphene. Additionally, the composite showed excellent reproducibility of PF after five cycles testing from room temperature to 873 K, which confirmed the practical application potentiality of this composite.
Indexed by:Article
Document Code:Volume 49, July 2018, Pages 267-273
Document Type:J
Translation or Not:no
Date of Publication:2023-09-13
Included Journals:SCI
Links to published journals:https://www.sciencedirect.com/sdfe/arp/cite?pii=S221128551830288X&format=text%2Fplain&withabstract=true
Pre One:Thermoelectric SnS and SnS-SnSe solid solutions prepared by mechanical alloying and spark plasma sintering: Anisotropic thermoelectric properties
Next One:Enhancing the thermoelectric performance of Cu1.8S by Sb/Sn co-doping and incorporating multiscale defects to scatter heat-carrying phonons
唐怀超,男,中共党员,工学博士、高级工程师(副高)、全国优秀创新创业博士后、福建省高层次人才。2019年毕业于清华大学材料科学与工程学院,先后参加包括973、国家基础科学中心重大项目及自然科学基金面上项目等,参与及主持多项企业重点研发项目。发表SCI文章多篇,包括《Nano Energy》、《J. Mater. Chem. C》、《Nanoscale》、《Sci. China Mater.》、《Energy Environ. Sci.》、《J. Am. Chem. Soc.》 等,H-index 14。申请专利30+项(其中,第一发明人 16 项,均为发明, 已授权 5项; PCT 国际发明 16 项,非完全统计)。现任中国矿业大学低碳能源与动力工程学院储能系副教授。
研究方向:
针对能量转化与存储过程中的关键电极材料,致力于调控电极材料结构与成分,并着重探索其对器件层级的规律变化。
1)大容量电化学电池的热失控机理、诱发与防控;
2)高性能油系电池,包括碱金属离子电池及高能量密度、预金属化等方向;
3)储能用新型水系电池,包括多价态离子电池、枝晶抑制、低温改性等方向;
4)碳基功能材料制备及性能优化等。
招生条件:
1)在化学、化工、材料、能源等方面有一定基础;
2)有一定的英文阅读和理解能力,以及较好的写作能力;
3)遵守道德法纪,心态积极阳光;
4)具有科研探索精神,以及探究人类未知领域的兴趣。
研究条件及待遇:
1)课题组提供良好的实验设备和经费。
2)组内师生关系融洽,科研气氛良好,有完善的办公条件;
3)在中国矿业大学研究生补贴的基础上,导师额外发放具有竞争力的补贴以及科研奖励;
4)课题组与国内外研究机构密切合作,有参与国内外学术交流的机会;
5)方向紧贴能源革命发展方向,毕业前景好。
欢迎有志之士加入,我们一起做些有趣、有用,且激动人心的研究。