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Intermediate Valence Ion-Mediated Electrodeposition Process
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DOI：10.1002/smll.202203229.png)
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摘要
En 中文
The assembly of biomolecules and ions (e.g., biomineralization process) generates many intricate structures in nature. However, human beings' control over the assembly processes of ions is in its infant stage compared with nature. Here, it is reported that the intermediate valence metal ions in the electrolyte can influence the growth speed of certain crystal facets and in turn adjust the shape of the electrodeposits created by anodic electrodeposition. This is because the intermediate valence metal ions (e.g., Pb2+, Mn2+, etc.) can be oxidized by the electrochemically oxidized high valence ions (e.g., Ag2+ and Ag3+). Therefore, the concentration of the electrochemically oxidized high valence ions can be controlled by the intermediate valence ions, affecting the growth kinetics of the electrodeposits. Taking the anodic electrodeposition of Ag7O8NO3 as an example, the role of intermediate valence ions in tailoring the shape of the Ag7O8NO3 electrodeposits is demonstrated. Moreover, the growth location of the second-order structure can be controlled by the intermediate valence metal ions. Additionally, the designed complex microarchitectures starting from certain crystal facets to form hollow nanoframes can be selectively etched. The control capability over the electrochemical assembly process of metal ions is significantly strengthened by introducing intermediate valence ions into the electrolyte.
Keyword:
Ag
O-7
8NO
(3)
electrodeposition
intermediate valence ions
microstructure design
期刊
IF:
12.1
论文数:
3.0W
被引数:
16.4W
机构
引用论文
25th Anniversary Article: Galvanic Replacement: A Simple and Versatile Route to Hollow Nanostructures with Tunable and Well-Controlled Properties25周年文章: 电替换: 具有可调和良好控制特性的中空纳米结构的简单而通用的路线.png)
ADVANCED MATERIALS
ADVANCED MATERIALSIF26.8
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