Pan Desheng, Xiao Bin, Wang Qing, Wang Hong
Department of Materials Science and Engineering & Shenzhen Engineering Research Center for Novel Electronic Information Materials and Devices, South University of Science and Technology, Shenzhen, 518055, China.
Chem Commun (Camb). 2021 Mar 4;57(18):2309-2312. doi: 10.1039/d0cc07791g. Epub 2021 Feb 3.
Chemical conversion provides a versatile platform for the synthesis of advanced nanomaterials with targeted phase, composition, and architecture. Here, we report a trioctylphosphine (TOP)-driven chemical conversion route to transform lamellar FeCoS-DETA (x = 0.1, 0.3, 0.5, 0.7, DETA = diethylenetriamine) inorganic-organic hybrid solid solutions into two-dimensional (2D) single-crystal FeCo alloy with controllable composition and dimensionality. Synergetic transformation coupled with DETA removal and sulfur extraction of lamellar FeCoS-DETA hybrids was examined in detail. The highest magnetization of 175 emu g was recorded for the prepared FeCo. Our results not only provide a new lamellar inorganic-organic hybrid solid solution but also extend the chemical conversion strategy to the synthesis of previously unavailable magnetic alloy nanosheets.
化学转化为合成具有特定相、组成和结构的先进纳米材料提供了一个通用平台。在此，我们报告了一种由三辛基膦（TOP）驱动的化学转化路线，可将层状FeCoS-DETA（x = 0.1、0.3、0.5、0.7，DETA = 二乙烯三胺）无机-有机杂化固溶体转化为具有可控组成和维度的二维（2D）单晶FeCo合金。详细研究了层状FeCoS-DETA杂化物的协同转化以及DETA去除和硫提取过程。制备的FeCo记录到最高磁化强度为175 emu g。我们的结果不仅提供了一种新的层状无机-有机杂化固溶体，还将化学转化策略扩展到了合成以前无法获得的磁性合金纳米片。
