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个人信息Personal Information
教授 博士生导师
招生学科专业:
化学 -- 【招收硕士研究生】 -- 材料科学与技术学院
材料科学与工程 -- 【招收博士、硕士研究生】 -- 材料科学与技术学院
材料与化工 -- 【招收博士、硕士研究生】 -- 材料科学与技术学院
能源动力 -- 【招收博士、硕士研究生】 -- 材料科学与技术学院
性别:男
学历:南京大学
学位:理学博士学位
所在单位:材料科学与技术学院
办公地点:江宁校区1号楼14楼408A
联系方式:18005152399
电子邮箱:
Cross-Linking-Derived Synthesis of Porous CoxNiy/C Nanocomposites for Excellent Electromagnetic Behaviors
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所属单位:材料科学与技术学院
发表刊物:ACS APPLIED MATERIALS & INTERFACES
关键字:CoxNiy/C alloy porous carbon alginate electromagnetic wave absorption
摘要:The magnet/dielectric composites with tunable structure and composition have drawn much attention because of their particular merits in magnetoelectric properties compared with the sole dielectric or magnetic composites. In addition, porous materials at the nanoscale can satisfy the growing requirements in many industries. Therefore, constructing porous metal alloy/carbon nanocomposites is to be an admirable option. Unfortunately, traditional synthesis methods involve multistep routes and complicated insert-and-remove templates approaches. Here we report a facile process to synthesize CoxNiy/C composites via a spontaneous cross-linking reaction and subsequent calcination process, during which multiple processes, including reducing polyvalent metal ions, forming alloy, and encapsulating alloy nanoparticles into porous carbon matrix, are achieved almost simultaneously. By adjusting the feed ratio of Co2+ to Ni2+ ions, controllable composition of CoxNiy/C composites can be gained. It should be noted that the CoxNiy/C composites are demonstrated to be excellent microwave absorbers from every aspect of assessment criteria including reflection loss, effective bandwidth, thickness, and weight of absorber. Our study opens up a promising technique for the synthesis of alloy/carbon compdsites with porous nanostructures with target functionalities.
ISSN号:1944-8244
是否译文:否
发表时间:2017-11-08
合写作者:权斌,梁小会,张亚男,徐国跃,都有为
通讯作者:姬广斌