Creating ultrathin amorphous metal hydroxide and oxide nanosheet libraries
Creating ultrathin amorphous metal hydroxide and oxide nanosheet libraries
复制标题
创建超薄非晶金属氢氧化物和氧化物纳米片库
DOI：
10.1039/c8ta11525g
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发表时间：
2019-03-07
影响因子：
11.9
通讯作者：
Guo, Lin
中科院分区：
文献类型：
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作者：
Jia, Binbin;Hao, Rui;Guo, Lin
设计一个通用的策略来合成一系列的二维非晶纳米材料的新兴应用已经变得越来越迷人和必要。在本文中，我们报告了一种通用的牺牲模板策略，其产生10个不同的2D无定形金属氢氧化物纳米片的库，包括单金属氢氧化物纳米片、二元金属氢氧化物纳米片和三元金属氢氧化物纳米片。合成的关键问题集中在Cu2O模板的蚀刻速率和金属氢氧化物的沉积速率之间的平衡。通过在氩气气氛中对金属氢氧化物前体进行简单的热处理，可以很容易地获得相应的无定形多孔金属氧化物纳米片。这种通用方法提供了可预测的途径来合成否则无法获得的2D无定形材料。
Designing a general strategy for synthesizing a series of 2D amorphous nanomaterials for emerging applications has become more and more fascinating and necessary. Herein, we report a general sacrificial template strategy which yields a library of 10 distinct 2D ultrathin amorphous metal hydroxide nanosheets, including mono-metal hydroxide nanosheets, binary-metal hydroxide nanosheets and ternary-metal hydroxide nanosheets. The key issue of synthesis is focused on the balance between the etching rate of the Cu2O template and deposition rate of the metal hydroxide. Through a simple thermal treatment of the metal hydroxide precursors in an argon atmosphere, the corresponding amorphous porous metal oxide nanosheets can be easily obtained. This general method provides predictable pathways to synthesize 2D amorphous materials that are otherwise inaccessible.