利用设计的二维表面活性剂固体对分子级薄铂纳米片进行定制合成。

Tailored synthesis of molecularly thin platinum nanosheets using designed 2D surfactant solids.

作者信息

Yamamoto Eisuke, Suzuki Akiko, Kobayashi Makoto, Osada Minoru

机构信息

Department of Materials Chemistry & Institute of Materials and Systems for Sustainability (IMaSS), Nagoya University, Nagoya 464-8601, Japan.

Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST), Saitama 332-0012, Japan.

出版信息

Nanoscale. 2022 Aug 18;14(32):11561-11567. doi: 10.1039/d2nr01807a.

DOI:10.1039/d2nr01807a

PMID:35866472

Abstract

The assembly of the surfactants has been utilized as unique templates for the controlled synthesis of metal nanosheets. However, current strategies for metal nanosheets have mainly focused on the liquid-phase surfactant assembly. Herein, we found the solid-state surfactants as designable crystals suitable for nanostructural control and proposed a novel synthetic route for molecularly thin Pt metal nanosheets using solid surfactant crystals as a precursor. The 2D surfactant crystals containing planarly arranged Pt complexes were prepared, and the subsequent UV-ozone treatment and reduction process allowed us to obtain Pt metal nanosheets. Pt metal nanosheets had a distinct morphology with various thicknesses (from 1.5 nm to 3.0 nm), characteristic of 2D surfactant crystals.

摘要

表面活性剂的组装已被用作可控合成金属纳米片的独特模板。然而，目前合成金属纳米片的策略主要集中在液相表面活性剂组装上。在此，我们发现固态表面活性剂是适用于纳米结构控制的可设计晶体，并提出了一种以固态表面活性剂晶体为前驱体合成分子级超薄铂金属纳米片的新路线。制备了含有平面排列铂配合物的二维表面活性剂晶体，随后的紫外臭氧处理和还原过程使我们获得了铂金属纳米片。铂金属纳米片具有独特的形态，厚度各异（从1.5纳米到3.0纳米），这是二维表面活性剂晶体的特征。