A new type of capping agent in nanoscience : metal cations

A new type of capping agent in nanoscience : metal cations

Capping agents are the essential factor in nanoscience and nanotechnology. However, the types of capping agents are greatly limited. Defying conventional beliefs, here is shown that metal cations can also be considered as capping agents for oxide nanoparticles, particularly in maintaining their coll...

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Bibliographic Details
Main Authors: Liu, Jiawei, Wang, Shaoyan, Cai, Kai, Li, Yefei, Liu, Zhipan, Liu, Lingmei, Han, Yu, Wang, Hong, Han, Heyou, Chen, Hongyu
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2020
Subjects:
Science::Chemistry
Aluminium Ion
Capping Agent
Online Access:https://hdl.handle.net/10356/143352
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Institution: Nanyang Technological University
Language: English
Description
Summary:Capping agents are the essential factor in nanoscience and nanotechnology. However, the types of capping agents are greatly limited. Defying conventional beliefs, here is shown that metal cations can also be considered as capping agents for oxide nanoparticles, particularly in maintaining their colloidal stability and controlling their facets. Here the general stabilizing effects of multivalent cations for oxide nanoparticles, and the facet controlling role of Al3+ ions in the growth and ripening of Cu2O octahedra, are demonstrated. This discovery broadens the view of capping agent and opens doors for nanosynthesis, surface treatment, and beyond.

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