相关实验视频

Updated: Jun 27, 2025

Synthesis of a Water-soluble Metal–Organic Complex Array

Synthesis of a Water-soluble Metal–Organic Complex Array

Published on: October 8, 2016

稳定水溶性超原子银集群的开发利用一个受多氧酸盐保护的策略:巨型核型Ag₈@Nb₁₆₂光纳米集群

Li-Hao Hong¹, Sheng-Nan Yue¹, Xing Huang¹

¹Fujian Provincial Key Laboratory of Advanced Inorganic Oxygenated Materials State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350108, China.

Angewandte Chemie (International ed. in English)

|May 7, 2024

概括

研究人员开发了一种新方法,使用多氧化酸盐 (PONbs) 制造稳定,水溶性银纳米集群 (AgNCs). 这一突破使新的光学材料和防伪技术成为可能.

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
无机化学无机化学

背景情况:

原子精确的低核度银纳米集群 (AgNCs) 具有独特的光学特性,但由于不稳定性,它们难以合成.
聚氧基酸盐 (PONbs) 是高度负的和氧化还原无效的无机配体,具有稳定金属集群的潜力.

研究的目的:

开发一种新且可行的方法来合成稳定的低核度AgNCs.
探索使用PONbs作为全无机配体用于AgNC稳定.
研究合成的AgNCs的光学特性和应用.

主要方法:

使用多氧基酸盐 (PONbs) 作为配体,对银离子进行聚类.
一种由[LiNb27O75]14-多氧离子稳定的新型八核基[Ag8]6+AgNC的合成.
关于Ag-PONb复合纳米团{Ag8@(LiNb27O75) 6} (Ag8@Nb162) 的表征.

主要成果:

成功合成了第一个PONb受保护的超原子AgNC,Ag8@Nb162,具有球形核心外结构.
Ag8@Nb162纳米团在环境条件下稳定,水溶性,在水溶液中保持其结构.
证明了Ag8@Nb162纳米团的温度和pH值依赖的可逆光反应.

结论:

这项工作为合成稳定的PONb受保护的AgNCs提供了一个有希望的策略.
合成的AgNC显示出开发新光学功能材料的潜力.
可逆光响应可用于反伪造技术的多种光学加密模式.

关键词:

光是一种光.大分子分子是巨分子.纳米集群中的纳米集群.聚氧基酸盐是多氧基酸盐.银,银,银,银,银,银,银,银,银,银,银,银,银,银,银,银

更多相关视频

A Simple Method for the Size Controlled Synthesis of Stable Oligomeric Clusters of Gold Nanoparticles under Ambient Conditions

A Simple Method for the Size Controlled Synthesis of Stable Oligomeric Clusters of Gold Nanoparticles under Ambient Conditions

Published on: February 5, 2016

Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates

Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates

Published on: February 15, 2016

相关概念视频

Formation of Complex Ions

Formation of Complex Ions

A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a transition metal cation, surrounded by ions or molecules called ligands. These ligands can be neutral molecules like H2O or NH3, or ions such as CN− or OH−. Often, the ligands act as Lewis bases, donating a pair of electrons to the central atom. These types of Lewis acid-base reactions are examples of a broad subdiscipline called coordination...

Colloidal precipitates

Colloidal precipitates

The high insolubility of some precipitates can result in an unfavorable relative supersaturation. This can lead to colloidal particles with a large surface-to-mass ratio, where adsorption is promoted. For instance, in the precipitation of silver chloride, silver ions are adsorbed on the surface of the colloidal particles, forming a primary layer. This layer attracts ions of opposite charge (such as nitrate ions), forming a diffuse secondary layer of adsorbed ions. This electric double layer...