| 自组装多功能Fe3O4分级微球:高效的锂离子电池材料和加氢催化剂 |
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| 作者姓名： | 吴孔林 凌敏 曾培源 张亮 吴涛 关平丽 张永臻 陈郑 方臻 魏先文 |
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| 作者单位： | Institute of Clean Energy and Advanced Nanocatalysis（iClean）;College of Chemistry and Materials Science;Department of Physics and Chemistry |
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| 基金项目： | the financial support from the National Natural Science Foundation of China (21501004,21771003,21901007 and 21671005);Anhui Provincial Natural Science Foundation for Distinguished Youth (1808085J27)。 |
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| 摘 要： | 本论文发展了一种简单、低成本的一步"同步还原-自组装(SRSA)"水热法并制备了自组装Fe3O4分级结构的微球(Fe3O4HMSs).在合成过程中,仅使用甘油、水和铁氰化钾作为反应物,而无需任何其他还原剂、表面活性剂或添加剂即可获得自组装Fe3O4HMSs.其中,K3Fe(CN)6]和甘油是合成自组装Fe3O4HMSs的两个重要因素.自组装Fe3O4HMSs可以作为高性能的锂离子存储材料,在0.5Ag-1的电流密度下,经过270次循环后比容量大于1000 mA hg-1.进一步充电和放电结果表明自组装Fe3O4HMSs表现出良好的可逆性能(放电比容量维持在1000mA h g-1以上)和循环稳定性(700次循环).此外,作为多功能材料,自组装Fe3O4HMSs的饱和磁化强度达到99.5 emu g-1,其可以进一步作为高效、磁性可回收的催化剂用于高效的硝基化合物加氢反应.
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| 关 键 词： | 饱和磁化强度 放电比容量 锂离子电池材料 多功能材料 分级结构 铁氰化钾 循环稳定性 可逆性 |
Self-assembled multifunctional Fe3O4 hierarchical microspheres: high-efficiency lithium-ion battery materials and hydrogenation catalysts |
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| Authors: | Konglin Wu Min Ling Peiyuan Zeng Liang Zhang Tao Wu Pingli Guan Weng-Chon Cheong Zheng Chen Zhen Fang Xianwen Wei |
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| Affiliation: | (Institute of Clean Energy and Advanced Nanocatalysis(iClean),School of Chemistry and Chemical Engineering,Anhui University of Technology,Maanshan 243002,China;College of Chemistry and Materials Science,Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes,the Key Laboratory of Functional Molecular Solids,Ministry of Education,Anhui Normal University,Wuhu 241002,China;Department of Physics and Chemistry,Faculty of Science and Technology,University of Macao,Macao,China) |
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| Abstract: | Self-assembled Fe3O4hierarchical microspheres(HMSs) were prepared by a one-pot synchronous reduction–self-assembling (SRSA) hydrothermal method.In this simple and inexpensive synthetic process,only glycerol,water,and a single iron source (potassium ferricyanide (K3Fe(CN)6]))were employed as reactants without additional reductants,surfactants,or additives.The iron source,K3Fe(CN)6],and glycerol significantly affected the synthesis of Fe3O4HMSs.Fe3O4HMSs with a self-assembled spherical shape readily functioned as high-performance anode materials for lithiumion batteries with a specific capacity of>1000 mA h g-1at0.5 A g-1after 270 cycles.Further charging and discharging results revealed that Fe3O4HMSs displayed good reversible performance (>1000 mA h g-1) and cycling stability (700 cycles) at 0.5 A g-1.Furthermore,as multifunctional materials,the as-obtained Fe3O4HMSs also exhibited high saturation magnetization (99.5 emu g-1) at room temperature (25°C) and could be further employed as efficient and magnetically recyclable catalysts for the hydrogenation of nitro compounds. |
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| Keywords: | iron oxide hierarchical structure energy storage material lithium-ion battery hydrogenation catalyst |
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