雷云，四川大学特聘研究员（正高级）、博士生导师和硕士生导师（2025年至今），入选云南省“百名海外高层次人才引进计划”、四川大学“双百人才工程”A计划，日本东京大学博士（材料工程，2012年），日本京都大学高级研究学者（2023年），重庆大学硕士（冶金工程，2009年），重庆大学双学士（冶金工程和工程管理，2006年），历任昆明理工大学讲师（2014-2015年）、副教授（破格，2015-2019年）、教授（破格，2019-2025年）和博士生导师（2020年-2025年）、昆明贵金属研究所助理研究员（2012-2014年）；任《Transactions of Nonferrous Metals Society of China》中英文两刊、《International Journal of Minerals, Metallurgy and Materials》、《矿产保护与利用》的青年编委。主持国家自然科学基金项目4项（地区2项、应急管理1项、青年1项）、国家重点研发计划子课题1项（108.16万元）、省级及其他项目7项。共发表高水平论文130余篇，其中第1作者或通讯作者SCI论文近70篇（中科院分区1区和2区论文占比82%），以第1发明人获授权国家发明专利20件，其中1项技术正在企业实施转化。获中国有色金属工业科学技术一等奖1项、云南省教育成果奖二等奖1项。参编英文著作1部。兼任近30个国际高水平期刊的审稿人。担任多个国家级和省部级项目的评审专家。
在研究生培养方面，指导学生在本学科竞赛中获国家级特等奖2人次、一等奖1人次、三等奖3人次，获省级二等奖和三等奖10人次；指导的研究生获国家奖学金5人次、云南省政府奖学金2人次、云南省三好学生和优秀毕业生各1人次；近五年，指导的全日制研究生以第1作者在本领域高水平SCI期刊发表期刊论文38篇，其中中科院分区1区和2区论文占比98.7%；指导的研究生以第2发明人申请获授权国家发明专利11件，在国内学术会议上做分会报告40多人次。
招收博士、硕士研究生专业：化学工程、材料化工、冶金工程、材料科学与工程、材料加工、新能源器件与材料。
联系方式：leiyn2008@163.com；leiyun@scu.edu.cn.
办公地址：四川大学望江校区化学工程学院
研究方向：相分离的高温物理化学与先进材料制备。
通过单晶生长技术（液-固相的高温分离）、真空分离提纯技术（液-气相的高温分离提纯）、电磁定向结晶分离提纯技术（液-固相的高温分离提纯）、熔盐电化学分离提纯技术（固-固相的高温分离提纯）、电子束和等离子熔炼的分离提纯技术（液-气相的高温分离提纯）、渣金分离提纯技术（液-液相的高温分离提纯）、合金溶剂高温萃取分离提纯技术（液-液相的高温分离提纯）等高温相分离提纯技术实现稀贵金属固废资源材料化、半导体单晶材料、高纯材料等先进材料制备。
具体研究内容：
（1）高纯半导体材料制备（宽禁带半导体SiC单晶和高纯多晶粉、太阳能级硅、高纯钛等高纯金属）；
（2）新能源动力电池的循环利用与原材料制备（电动汽车电池、光伏电池等）；
（3）稀贵金属固废资源的清洁利用与材料化（失效汽车催化剂、失效石化催化剂、失效废SCR催化剂、含钛高炉渣、稀土固废、晶硅废料等，并将其直接制备成先进材料或稀贵金属富集物）；
（4）多元合金材料的设计与循环利用（共晶高熵合金、多元废铝合金循环利用与共晶化设计，多元硅化物热电材料设计等）。
代表性创新性研究：
（1）在宽禁带半导体（第3代半导体）SiC单晶的生长方面，开发了一系列Si-RE（稀土）溶剂法低温快速生长SiC单晶的技术，使液相法生长SiC单晶的生长温度降低至1550℃-1600℃且单晶生长速度仍高于传统的液相法和PVT法，解决了纯稀土溶液不能生长SiC单晶的问题，使稀土在溶液法生长SiC单晶的低温、增碳、低污染、快速生长等方面发挥了独特优势。另外，提出了采用Si-RE（稀土）溶剂法低温快速合成高纯SiC多晶的新技术，SiC多晶粉的纯度为~99.999%。
（2）在稀贵金属固废资源的清洁利用与材料化方面，提出了硅作为稀贵金属捕集剂的新概念，尤其提出了硅作为一种全新的、绿色高效捕集贵金属的捕集剂，硅的轻金属特性避免了传统重金属捕集剂的污染，硅对失效汽车催化剂、石化催化剂中铂族金属的捕集率高于99%，且能同时回收废催化剂中98%的Zr以及60%以上的稀土元素。另外，创新性地将真空电磁定向结晶技术应用于稀贵金属资源的清洁利用，经过“熔炼捕集+真空电磁定向结晶分离提纯”2个步骤后，不仅实现废汽车催化剂、石化催化剂、含钛高炉渣、新能源关键金属资源、稀土废渣、含铬渣、晶硅废料、低品位锰矿、废SCR催化剂等多种关键金属资源的绿色高效利用，还同时制备了高纯硅、TiAl合金、硅化物、SiC陶瓷高温钎焊用的共晶硅基焊料等先进材料，并获得了稀贵金属富集物，整个过程无废酸、废气和有害固废排放。
（3）在多元合金材料的设计与循环利用方面，提出了采用电磁定向结晶分离技术设计、制备和验证多元/高熵共晶合金，设计了一系列成分不同的Al-Co-Cr-Fe-Ni新型共晶高熵合金；另外，将电磁定向结晶分离技术应用到多元硅合金的分离与材料设计，设计了多种新型硅基热电能源原材料；此外，将电磁定向结晶分离技术应用到多元废铝合金的绿色循环利用与新型多元铝合金设计。
代表性国家级科研项目：
（1）国家自然科学基金委员会，地区基金项目，22368031，晶硅废料捕集失效汽车催化剂中稀贵金属的热力学及电磁强化机理研究，2024-01至2027-12， 32万元，在研，项目负责人
（2）国家自然科学基金委员会，地区基金项目，61964009，Si-RE-C助溶剂法低温高速生长高质量SiC单晶的基础研究，2020-01至2023-12，39万元，已结题，项目负责人
（3）国家重点研发计划子课题，2019TFC1907500，废汽车尾气净化催化剂中铂族金属的高效合金化机理与优化调控机制，2020-01至2022-12，108.16万元，已结题，项目负责人
（4）国家自然科学基金委员会，应急管理项目，61751403，稀土金属助溶剂法低温高速生长高质量SiC单晶的基础研究，2018-01至2018-12，10万元，已结题，项目负责人
（5）国家自然科学基金委员会，青年基金项目，51504118，基于Al-Si合金精炼硅技术的微量金属添加剂对硼的捕获行为及其热力学研究，2016-01至2018-12，23.74万元，已结题，项目负责人
近5年以第1作者或通讯作者发表的论文：
(1)Yang, Dongfang; Chen, Jiao; Ma, Wenhui; Ren, Yongsheng; Luo, Sen; Lei, Yun*; Green separation and enrichment of rare and precious metals from spent automotive catalysts via Si collection and electromagnetic directional crystallization, Green Chemistry, accepted, 2025.
(2)Li, Junhua; Yang, Dongfang*; Ma, Wenhui; Ren, Yongsheng*; Lei, Yun*; Cooperative utilization of Ti-containing blast furnace slag and diamond wire cut silicon waste: preparation of eutectic Si-Ti solder for welding SiC ceramics, Chemical Engineering Journal, 2025, 515, 163480.
(3)Gong, Zhe; Li, Zhanchao*; Ren, Yongsheng*; Ma, Wenhui; Lei, Yun*; Separation of low-purity Si-Mn melts to prepare clean MnSi1.73–1.75 and Si1-xMnx alloys for the sustainability of Si and Mn resources, Journal of Environmental Chemical Engineering, 2025, 13, 116821.
(4)Xu, Yongchao Xu; Lei, Yun*; Ma, Wenhui; Suo, Kangning; Design of a new eutectic high-entropy/multicomponent alloy by a single experiment of electromagnetic directional crystallization and the verification method, Intermetallics, 2025, 182, 108786.
(5)Han, Chen; Lei, Minpeng; Wang, Zongxian; Yang, Hongyu; Ma, Wenhui; Lei, Yun*; A promising Si-Cr-Nd-C solution system designed for rapid growth of 3C-SiC at a low temperature of 1873 K, CrystEngComm, 2025,27, 7610-7619.
(6)Suo, Kangning; Xu, Yongchao; Ma, Wenhui; Ren, Yongsheng*; Lei, Yun*; Separation of Al-Si-(Fe, Ni) melt for simultaneous recycling of Al-Si scrap and preparation of Al-Si eutectic alloys, Separation and Purification Technology, 2025, 363: 132032.
(7)Li, Zhanchao; Ma, Wenhui; Wang, Shiding; Li, Jianzhou; Lei, Yun*; An approach to prepare novel TiSi2 alloy for clean utilization of spent V2O5-WO3/TiO2 catalysts and diamond-wire silicon slitting powder, 2025, Separation and Purification Technology, 354: 129347.
(8)Yang, Dongfang; Wu, Jian*; Xiong, Qingfeng*; Wang, Shiding; Ma, Wenhui; Sun, Hongfei; Lei, Yun*; Accurate Determination of Platinum and Rhodium in Spent Automotive Catalyst via Copper Fire Assay Method for Resource Sustainability, ACS Sustainable Resource Management, 2024, 12, 2575-2582.
(9)Wang, Shiding; Li, Zhanchao; Ma, Wenhui; Lei, Minpeng; Yang, Dongfang; Lei, Yun*; Simultaneous preparation of high-purity Si and eutectic Si-Nd alloy utilizing Nd2O3-containing waste slag and diamond-wire sawing silicon waste, Chemical Engineering Journal, 2024, 499:156307.
(10)Li, Zhanchao; Yang, Lei; Ma, Wenhui; Lei, Yun*; Eutectic Si-Ti brazing alloy prepared from spent selective catalytic reduction catalyst and diamond-wire sawing silicon waste, Chemical Engineering Journal, 2024, 496: 154053.
(11)Wang, Meng; Zhang, Yakun*; Li, Zhanchao; Li, Jianzhou; Ma, Wenhui; Lei, Yun*; Preparation of low-oxygen Ti-Al alloy by sustainable recovery of spent SCR catalyst, Separation and Purification Technology, 2024, 343: 127060.
(12)Lei, Minpeng; Han, Chen; Deng, Huan; Ma, Wenhui; Lei, Yun*; Achieving rapid synthesis of high-purity SiC at 1923 K via a liquid-state reaction, ACS Sustainable Chemistry & Engineering, 2024, 12: 12608-12618.
(13)Zhang, Yakun; Lei, Yun*; Ma, Wenhui*, Ren, Yongsheng; Evaluation of thermal conductivities and thermal expansion coefficients of TiSi2 and Ti5Si3 ceramics prepared from Ti- and Si-rich wastes, Ceramics International, 2024, 50: 3373-3380.
(14)Deng, Huan; Lei, Minpeng; Ma, Wenhui; Guo, Chao; Mu, Fengwen; Lei, Yun*; Rapid growth of high-purity 3C-SiC crystals using a SiC saturated Si–Pr–C solution, Crystal Growth & Design, 2024，24:1180-1187.
(15)Zhang, Yakun*; Lei, Yun*; Ren, Yongsheng; Ma, Wenhui; Thermodynamic study of high-purity TiSi2 prepared by directional solidification, Metallurgical and Materials Transactions B, 2024, 55: 3012-3017.
(16)Zhang, Yakun; Lei, Yun*; Ma, Wenhui; Ren, Yongsheng; Simultaneous recycling of Si and Ti from diamond wire saw silicon powder and Ti–bearing blast furnace slag via reduction smelting: An investigation of the effects of refractories on recycling, Waste Management, 2023, 157: 36-46.
(17)Yang, Dongfang; Yang, Qingyuan; Ma, Wenhui; Wang, Shiding; Lei, Yun*; Co-treatment of diamond-wire-saw silicon kerf and spent automotive catalysts for simultaneous recovery of PGMs, REEs, Zr, and high-purity Si, Waste Management, 2023, 171: 237-247.
(18)Zhang, Chenkangjian, Li, Zhanchao; Zhang, Yakun; Lei, Minpeng; Ma, Wenhui; Lei, Yun*; Comprehensive utilization of diamond wire saw silicon powder waste and low-grade Mn ore to prepare MnSi1.73-1.75-rich alloy, ACS Sustainable Chemistry & Engineering, 2023, 11: 12714-12723.
(19)Li, Jianzhou; Li, Zhanchao; Lei, Minpeng; Wang, Meng; Ma, Wenhui; Lei, Yun*; Simultaneous recycling of chromium-containing waste slag and diamond-wire silicon slitting scrap to prepare high-purity CrSi2 and eutectic Si–Cr alloy, ACS Sustainable Chemistry & Engineering, 2023, 11, 46, 16554-16566.
(20)Yang, Dongfang; Yang, Qingyuan; Ma, Wenhui; Ma, Xiaodong; Wang, Shiding; Lei, Yun*; Characteristics of spent automotive catalytic converters and their effects on recycling platinum-group-metals and rare-earth-elements, Separation and Purification Technology, 2023, 308: 122977.
(21)Zhang, Yakun; Lei, Yun*; Ren, Yongsheng; Ma, Wenhui*, Removal of Fe impurities from Al alloy scraps by electromagnetic directional solidification combined with Si addition, Journal of Materials Research and Technology, 2023, 26: 8738-8747.
(22)Yang, Qingyuan; Lei, Yun*; Yang, Dongfang; Ma, Wenhui; Ma, Xiaodong; A harmless slagging treatment to separate key impurities from Fe-PGMs alloys for improving the recovery ratio of PGMs from spent auto-catalysts, Journal of Environmental Chemical Engineering, 2023, 11: 110669.
(23)Zhang, Yakun; Lei, Yun*; Ma, Wenhui*; Ren, Yongsheng; Purification of Si-Ti alloys via vacuum evaporation: A thermodynamic and kinetic study of Ca impurity removal, Vacuum, 2023，209: 111787.
(24)Li, Peng; Lei, Minpeng; Ma, Wenhui; Guo, Chao; Mu, Fengwen; Lei, Yun*; Promising approach for rapid growth of high-quality SiC crystals using Si-Nd-C solutions, Crystal Growth & Design, 2023, 23, 5173-5180.
(25)Li, Zhanchao; Lei, Yun*; Ma, Wenhui*; Zhang, Yakun; Wang, Shiding; Green recovery of Ti, W, and V from spent V2O5-WO3/TiO2 catalyst to prepare W- and V-containing Si-Ti alloy, Metallurgical and Materials Transactions B, 2023, 54: 2614–2628.
(26)赵上强，雷云*，马文会，陈永泰，谢明，方继恒，氮化硅陶瓷连接的研究进展，昆明理工大学学报（自然科学版），2023, 48: 16-27。
(27)Li, Zhanchao; Lei, Yun*; Ma, Wenhui*; Zhang, Yakun; Wang, Shiding; Ren, Yongsheng; Lv, Guoqiang; An approach to prepare high-purity TiSi2 for clean utilization of Ti-bearing blast furnace slag, Green Chemistry, 2022, 24: 3344.
(28)Zhang, Yakun; Lei, Yun*; Ma, Wenhui; Ren, Yongsheng; Chen, Qiushi; Huan, Zhaoyang; Environmentally friendly approach for sustainable recycling of spent SCR catalyst and Al alloy scrap to prepare TiAl3 and low-Fe Al alloys, Green Chemistry, 2022, 24，6241.
(29)Zhang, Yakun; Lei, Yun*; Ma, Wenhui*; Zhai, Chaoran; Shi, Zhe; Ren, Yongsheng; A novel approach for simultaneous recycling of Ti-bearing blast furnace slag, diamond wire saw Si powder, and Al alloy scrap for preparing TiSi2 and Al-Si alloys, Journal of Hazardous Materials, 2022, 427: 127905.
(30)He, Yong; Lei, Minpeng; Ma, Wenhui; Zhang, Rilin; Lei, Yun*; A new approach to determine/design the eutectic composition of binary, ternary, and high-entropy alloys using electromagnetic directional crystallization, Journal of Alloys and Compounds, 2022, 916: 165410.
(31)Lei, Yun; Ma, Xiaodong; Wang, Ye; Chen, Zhiyuan; Ren, Yongsheng; Ma, Wenhui; Morita, Kazuki*; Recent progress in upgrading metallurgical-grade silicon to solar-grade silicon via pyrometallurgical routes, International Journal of Minerals, Metallurgy and Materials, 2022, 767, (4): 767-782（北京科技大学建校70周年特邀综述论文）.
(32)Zhang, Yakun; Lei, Yun*; Ma, Wenhui*; Li, Zhaochao; Wang Chao; A green approach for simultaneously preparing Ti5Si3 and Ti5Si4-TiAl3 alloys using spent SCR catalyst, Ti-bearing blast furnace slag, and Al alloy scrap, Chemical Engineering Journal, 2022,430,132916.
(33)Lei, Minpeng; He, Yong; Ma, Wenhui; Zhang, Rilin; Lei, Yun*; Novel approach for the simultaneous recovery of Nd from Nd2O3-containing slag and the preparation of high-purity Si, ACS Sustainable Chemistry & Engineering, 2021, 9, 15591−15602.
(34)Zhang, Rilin; Lei, Minpeng; He, Yong; Ma, Wenhui; Lei, Yun*; Simultaneous preparation of high-purity silicides, eutectic Si/MSi2 (M: Nb,Ta, Mo, or W) alloys, and silicon through the separation of Si–M solvents using electromagnetic directional crystallization, Separation and Purification Technology, 2021, 278: 119412.
(35)Wang, Chao; Lei, Yun*; Ma, Wenhui; Qiu, Peng; An approach for simultaneous treatments of diamond wire saw silicon kerf and Ti-bearing blast furnace slag, Journal of Hazardous Materials, 2021, 401:123446.
(36)Zhang, Yakun; Sun, Luen; Lei, Yun*; Ma, Wenhui*; Li, Zhaochao; Corrosion behavior of carbon, Al2O3, and MgO refractories during the preparation of a Ti–Si–Al alloy via the aluminothermic reduction of a Ti-bearing blast-furnace slag, Ceramics International, 2021, 47: 18044-18052.
(37)Li, Zhanchao; Lei, Yun*; Ma, Wenhui*; Wang, Chao; Preparation of high-purity TiSi2 and eutectic Si-Ti alloy by separation of Si-Ti alloy for clean utilization of Ti-bearing blast furnace slag, Separation and Purification Technology, 2021, 265: 118473.
(38)Xian, Peishuai; Lei, Yun*; Ma, Wenhui; Wang, Chao; Separation of Al-Si-Fe-(Mn/Cr) melts for simultaneous recycle of Al-Si scraps and purification of silicon, Separation and Purification Technology, 2021, 264: 118402.
(39)Lei, Yun*; Qiu, Peng; Ma, Wenhui; Wang, Chao; Novel approach for clean utilization of complex low-grade metal resources using silicon as metal getter, Journal of Cleaner Production, 2020, 260: 121063.
(40)Zhang, Yakun; Lei, Yun*; Ma, Wenhui*; Wang, Hao; Hu, Yuqiu; Wei, Kuixian; Li, Shaoyuan; Preparation of high-purity Ti–Si alloys by vacuum directional solidification, Journal of Alloys and Compounds, 2020, 832: 153989.
