Abstract
Conventional templating synthesis confines the growth of seeds in rigid spaces to achieve faithful morphological replication. Herein, we explore the use of spherical shape-deformable polymeric nanoshells to regulate the anisotropic growth of Ag nanoplates. The flexible shells deform adaptively to accommodate the initial overgrowth of the seeds but restrict the growth in the directions where the shells are fully stretched, eventually producing nanoplates with an unconventional circular profile. The diameter of the final Ag nanoplates can be precisely predicted by stretching and flattering the nanoshells into a plate-like capsule while retaining their original internal surface area. Furthermore, unlike conventional templates, the polymer shells eventually turn themselves into a conformal coating that binds to the surface of the full-grown Ag nanoplates and significantly enhances their stability against oxidative etching.
| Original language | English |
|---|---|
| Pages (from-to) | 4117-4124 |
| Number of pages | 8 |
| Journal | Angewandte Chemie - International Edition |
| Volume | 60 |
| Issue number | 8 |
| DOIs | |
| State | Published - Feb 19 2021 |
| Externally published | Yes |
Funding
This work was financially supported by the U.S. National Science Foundation (CHE‐1808788). J.C. acknowledges the support from National Natural Science Foundation of China (51901147) and China Postdoctoral Science Foundation (2019M651939), and the helpful discussion with Dr. Xiaojing Wang (Los Alamos National Laboratory) and Dr. Qianqian Fu (East China Normal University). The authors also thank Dr. Mingxing Gong (Huazhong University of Science and Technology) and the Central Facility for Advanced Microscopy and Microanalysis at UCR for help with TEM analysis. This work was financially supported by the U.S. National Science Foundation (CHE-1808788). J.C. acknowledges the support from National Natural Science Foundation of China (51901147) and China Postdoctoral Science Foundation (2019M651939), and the helpful discussion with Dr. Xiaojing Wang (Los Alamos National Laboratory) and Dr. Qianqian Fu (East China Normal University). The authors also thank Dr. Mingxing Gong (Huazhong University of Science and Technology) and the Central Facility for Advanced Microscopy and Microanalysis at UCR for help with TEM analysis.
Keywords
- anisotropic growth
- confined space
- deformable materials
- plasmonics
- silver nanoplates