当前位置: X-MOL 学术Mater. Chem. Front. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Janus MXene nanosheets for macroscopic assemblies
Materials Chemistry Frontiers ( IF 7 ) Pub Date : 2020/01/15 , DOI: 10.1039/c9qm00681h
Sai Zhao 1, 2, 3, 4, 5 , Lulu Li 2, 3, 5, 6, 7 , Hao-Bin Zhang 1, 2, 3, 4, 5 , Bingqing Qian 3, 5, 7, 8 , Jia-Qi Luo 2, 3, 5, 6, 7 , Zhiming Deng 2, 3, 5, 6, 7 , Shaowei Shi 3, 5, 7, 8 , Thomas P. Russell 3, 5, 7, 8, 9 , Zhong-Zhen Yu 2, 3, 5, 6, 7
Affiliation  

The versatile surface chemistry of MXenes affords a simple way by which the surface of MXene nanosheets can be modified. Here, by selectively grafting polystyrene onto one side of MXene nanosheets, a new amphiphilic surfactant nanomaterial, termed Janus MXene nanosheets (JMNs) or MXene nanosheet surfactants, is designed and synthesized. The prepared JMNs can be dispersed in either water or oil, and can spontaneously assemble at the water–oil interface to reduce the interfacial tension, making a promising solid surfactant to stabilize emulsions. Macroscopic assemblies of JMNs can also be easily prepared by interfacial assembly. Using creamed emulsions as templates, a lightweight, isotropic MXene aerogel is produced in one-step freeze-drying, where the matrix comprises the anchored PS and the pore structure is commensurate with the parent emulsion.

中文翻译:

用于宏观组装的Janus MXene纳米片

MXenes的通用表面化学性质提供了一种简单的方法,可以对MXene纳米片的表面进行改性。在这里,通过选择性地将聚苯乙烯接枝到MXene纳米片的一侧,设计并合成了一种新的两亲表面活性剂纳米材料,称为Janus MXene纳米片(JMNs)或MXene纳米片表面活性剂。制备的JMN可以分散在水中或油中,并且可以在水-油界面上自发组装以降低界面张力,从而成为一种有前景的固体表面活性剂,可以稳定乳液。JMN的宏观组装也可以很容易地通过界面组装来准备。使用乳化乳液作为模板,可通过一步冷冻干燥制得轻质,各向同性的MXene气凝胶,其中基质包含锚定的PS,并且孔结构与母体乳液相当。
更新日期:2020-03-05
down
wechat
bug