{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,8]],"date-time":"2026-10-08T13:49:58Z","timestamp":1791467398540,"version":"4.3.4"},"reference-count":61,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,10,8]],"date-time":"2026-10-08T00:00:00Z","timestamp":1791417600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,10,8]],"date-time":"2026-10-08T00:00:00Z","timestamp":1791417600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["52302340"],"award-info":[{"award-number":["52302340"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Small"],"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Chevrel phases are promising medium\u2010 to high\u2010temperature thermoelectrics owing to their structural stability and intrinsically low lattice thermal conductivity, yet prolonged high\u2010temperature synthesis causes grain coarsening and limits microstructural control. Here, we report an ultrafast solid\u2010state synthesis strategy for preparing phase\u2010pure ternary Chevrel phases within 20 min, reducing the reaction time by up to two orders of magnitude. Phase\u2010evolution analysis and density functional theory calculations suggest a possible formation pathway involving metal\u2010vapor insertion into metastable Mo\n                    <jats:sub>6<\/jats:sub>\n                    S\n                    <jats:sub>8<\/jats:sub>\n                    intermediates, potentially facilitated by reaction\u2010induced local overheating. This strategy is successfully extended to multiple sulfide\u2010 and selenide\u2010based Chevrel phases. The shortened synthesis process suppresses grain growth and enables microstructure\u2010mediated transport optimization. As a model system, microstructure\u2010refined Cu\n                    <jats:sub>2<\/jats:sub>\n                    Mo\n                    <jats:sub>6<\/jats:sub>\n                    S\n                    <jats:sub>8<\/jats:sub>\n                    exhibits suppressed lattice thermal conductivity and a peak\n                    <jats:italic>zT<\/jats:italic>\n                    of 0.40 at 900 K. Further increasing the Cu content to Cu\n                    <jats:sub>3.66<\/jats:sub>\n                    Mo\n                    <jats:sub>6<\/jats:sub>\n                    S\n                    <jats:sub>8<\/jats:sub>\n                    introduces enhanced structural disorder and interface\u2010induced energy filtering, simultaneously improving the Seebeck coefficient and reducing lattice thermal conductivity at elevated temperatures. Consequently, Cu\n                    <jats:sub>3.66<\/jats:sub>\n                    Mo\n                    <jats:sub>6<\/jats:sub>\n                    S\n                    <jats:sub>8<\/jats:sub>\n                    achieves a peak\n                    <jats:italic>zT<\/jats:italic>\n                    of 0.44 at 900 K, the highest value reported for ternary sulfide\u2010based Chevrel phases, together with a high average\n                    <jats:italic>zT<\/jats:italic>\n                    over 300\u2013950 K.\n                  <\/jats:p>","DOI":"10.1002\/smll.76143","type":"journal-article","created":{"date-parts":[[2026,10,8]],"date-time":"2026-10-08T12:51:46Z","timestamp":1791463906000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Ultrafast Solid\u2010State Synthesis of Chevrel Phases for Microstructure\u2010Enabled Thermoelectric Transport Optimization"],"prefix":"10.1002","author":[{"ORCID":"https:\/\/orcid.org\/0009-0005-8893-5592","authenticated-orcid":false,"given":"Zhenyu","family":"Chen","sequence":"first","affiliation":[{"name":"Superconducting Materials Research Center Northwest Institute for Non\u2010ferrous Metal Research  China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zongchen","family":"Jiang","sequence":"additional","affiliation":[{"name":"School of Materials Science and Engineering Northeastern University  China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Haoran","family":"Luo","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Deep Earth Sciences and Geothermal Energy Exploitation and Utilization, Institute of Deep Earth Sciences and Green Energy Shenzhen University  Shenzhen China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ziyan","family":"Hao","sequence":"additional","affiliation":[{"name":"Superconducting Materials Research Center Northwest Institute for Non\u2010ferrous Metal Research  China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3284-7954","authenticated-orcid":false,"given":"Shengnan","family":"Zhang","sequence":"additional","affiliation":[{"name":"Superconducting Materials Research Center Northwest Institute for Non\u2010ferrous Metal Research  China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9682-8173","authenticated-orcid":false,"given":"Lipeng","family":"Hu","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Deep Earth Sciences and Geothermal Energy Exploitation and Utilization, Institute of Deep Earth Sciences and Green Energy Shenzhen University  Shenzhen China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Binrong","family":"Huang","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Deep Earth Sciences and Geothermal Energy Exploitation and Utilization, Institute of Deep Earth Sciences and Green Energy Shenzhen University  Shenzhen China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yitao","family":"Lu","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Deep Earth Sciences and Geothermal Energy Exploitation and Utilization, Institute of Deep Earth Sciences and Green Energy Shenzhen University  Shenzhen China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ying","family":"Cao","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Deep Earth Sciences and Geothermal Energy Exploitation and Utilization, Institute of Deep Earth Sciences and Green Energy Shenzhen University  Shenzhen China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Botao","family":"Shao","sequence":"additional","affiliation":[{"name":"Superconducting Materials Research Center Northwest Institute for Non\u2010ferrous Metal Research  China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jixing","family":"Liu","sequence":"additional","affiliation":[{"name":"Superconducting Materials Research Center Northwest Institute for Non\u2010ferrous Metal Research  China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chengshan","family":"Li","sequence":"additional","affiliation":[{"name":"Superconducting Materials Research Center Northwest Institute for Non\u2010ferrous Metal Research  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