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Five-transition-metal high-entropy MXene material as well as preparation method and application thereof
The invention discloses a preparation method of a five-transition-metal high-entropy MXene material, which comprises the following steps: firstly, constructing a 514-phase high-entropy MAX material (TiVCrNbMo) 5AlC4, then reacting with an etching agent to obtain high-entropy MXene (TiVCrNbMo) 5C4Tx, and then preparing the high-entropy MXene (TiVCrNbMo) 5C4Tx into high-entropy MXene (TiVCrNbMo) 5C4Tx aerogel, namely obtaining the five-transition-metal high-entropy MXene material. According to the five-transition-metal high-entropy MXene material prepared through the method, five metal elements are evenly distributed and not gathered, and the five-transition-metal high-entropy MXene material is of an irregular-shaped three-dimensional macroporous structure and a thin-hole-wall structure which are formed by stacking a single layer or a few layers of MXene sheets and has a larger working voltage range, more excellent rate capability and more excellent ion and electron conductivity; and thus, higher conductivity and charge storage capacity are achieved. And the high-entropy MXene electrode material prepared from the five-transition metal high-entropy MXene material has excellent capacitance and excellent cycling stability.
本发明公开了一种五过渡金属高熵MXene材料的制备方法，其包括如下步骤，首先通过构建514相高熵MAX材料(TiVCrNbMo)5AlC4，随后与刻蚀剂反应得到高熵MXene(TiVCrNbMo)5C4Tx，再通过将高熵MXene(TiVCrNbMo)5C4Tx制备成高熵MXene(TiVCrNbMo)5C4Tx气凝胶，即获得五过渡金属高熵MXene材料。本发明制备所得的五过渡金属高熵MXene材料，五种金属元素分布均匀，不聚集，其具有由单层或少层MXene薄片叠加形成不规则形状的三维大孔结构，薄孔壁结构，具有更大的工作电压范围、更优异的倍率性能以及更优异的离子和电子电导率，进而具有更高的导电性与电荷存储能力。且由该五过渡金属高熵MXene材料制备得到的高熵MXene电极材料优异的电容与卓越的循环稳定性。
Five-transition-metal high-entropy MXene material as well as preparation method and application thereof
The invention discloses a preparation method of a five-transition-metal high-entropy MXene material, which comprises the following steps: firstly, constructing a 514-phase high-entropy MAX material (TiVCrNbMo) 5AlC4, then reacting with an etching agent to obtain high-entropy MXene (TiVCrNbMo) 5C4Tx, and then preparing the high-entropy MXene (TiVCrNbMo) 5C4Tx into high-entropy MXene (TiVCrNbMo) 5C4Tx aerogel, namely obtaining the five-transition-metal high-entropy MXene material. According to the five-transition-metal high-entropy MXene material prepared through the method, five metal elements are evenly distributed and not gathered, and the five-transition-metal high-entropy MXene material is of an irregular-shaped three-dimensional macroporous structure and a thin-hole-wall structure which are formed by stacking a single layer or a few layers of MXene sheets and has a larger working voltage range, more excellent rate capability and more excellent ion and electron conductivity; and thus, higher conductivity and charge storage capacity are achieved. And the high-entropy MXene electrode material prepared from the five-transition metal high-entropy MXene material has excellent capacitance and excellent cycling stability.
本发明公开了一种五过渡金属高熵MXene材料的制备方法，其包括如下步骤，首先通过构建514相高熵MAX材料(TiVCrNbMo)5AlC4，随后与刻蚀剂反应得到高熵MXene(TiVCrNbMo)5C4Tx，再通过将高熵MXene(TiVCrNbMo)5C4Tx制备成高熵MXene(TiVCrNbMo)5C4Tx气凝胶，即获得五过渡金属高熵MXene材料。本发明制备所得的五过渡金属高熵MXene材料，五种金属元素分布均匀，不聚集，其具有由单层或少层MXene薄片叠加形成不规则形状的三维大孔结构，薄孔壁结构，具有更大的工作电压范围、更优异的倍率性能以及更优异的离子和电子电导率，进而具有更高的导电性与电荷存储能力。且由该五过渡金属高熵MXene材料制备得到的高熵MXene电极材料优异的电容与卓越的循环稳定性。
Five-transition-metal high-entropy MXene material as well as preparation method and application thereof
一种五过渡金属高熵MXene材料及其制备方法和应用
DANG JIE (Autor:in) / MA WANSEN (Autor:in) / TAN CHAOWEN (Autor:in) / LYU XUEWEI (Autor:in) / QIU GUIBAO (Autor:in) / YOU ZHIXIONG (Autor:in) / HU LIWEN (Autor:in)
08.08.2023
Patent
Elektronische Ressource
Chinesisch
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