Nanoscale visualization of metallic electrodeposition in a well-controlled chemical environment.

Autor:	Cheng N; Information Materials and Intelligent Sensing Laboratory of Anhui Province, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, People's Republic of China., Sun H; DENSsolutions B.V., Informaticalaan 12, 2628 ZD Delft, The Netherlands., Beker AF; DENSsolutions B.V., Informaticalaan 12, 2628 ZD Delft, The Netherlands., van Omme JT; DENSsolutions B.V., Informaticalaan 12, 2628 ZD Delft, The Netherlands., Svensson E; DENSsolutions B.V., Informaticalaan 12, 2628 ZD Delft, The Netherlands., Arandiyan H; Laboratory of Advanced Catalysis for Sustainability, School of Chemistry, The University of Sydney, 2006, Sydney, Australia., Lee HR; Department of Electrical Engineering, Stanford University, Stanford, CA 94305, United States of America.; Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States of America., Ge B; Information Materials and Intelligent Sensing Laboratory of Anhui Province, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, People's Republic of China., Basak S; Institute of Energy and Climate Research, Fundamental Electrochemistry (IEK-9), Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany.; Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany., Eichel RA; Institute of Energy and Climate Research, Fundamental Electrochemistry (IEK-9), Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany.; Institute of Physical Chemistry, RWTH Aachen University, D-52074 Aachen, Germany., Pivak Y; DENSsolutions B.V., Informaticalaan 12, 2628 ZD Delft, The Netherlands., Xu Q; DENSsolutions B.V., Informaticalaan 12, 2628 ZD Delft, The Netherlands., Hugo Pérez Garza H; DENSsolutions B.V., Informaticalaan 12, 2628 ZD Delft, The Netherlands., Shao Z; WA School of Mines: Minerals, Energy, and Chemical Engineering, Curtin University, Perth, WA 6845, Australia.
Jazyk:	angličtina
Zdroj:	Nanotechnology [Nanotechnology] 2022 Aug 15; Vol. 33 (44). Date of Electronic Publication: 2022 Aug 15.
DOI:	10.1088/1361-6528/ac83c7
Abstrakt:	Liquid phase transmission electron microscopy (TEM) provides a useful means to study a wide range of dynamics in solution with near-atomic spatial resolution and sub-microsecond temporal resolution. However, it is still a challenge to control the chemical environment (such as the flow of liquid, flow rate, and the liquid composition) in a liquid cell, and evaluate its effect on the various dynamic phenomena. In this work, we have systematically demonstrated the flow performance of an in situ liquid TEM system, which is based on 'on-chip flow' driven by external pressure pumps. We studied the effects of different chemical environments in the liquid cell as well as the electrochemical potential on the deposition and dissolution behavior of Cu crystals. The results show that uniform Cu deposition can be obtained at a higher liquid flow rate (1.38 μ l min -1 ), while at a lower liquid flow rate (0.1 μ l min -1 ), the growth of Cu dendrites was observed. Dendrite formation could be further promoted by in situ addition of foreign ions, such as phosphates. The generality of this technique was confirmed by studying Zn electrodeposition. Our direct observations not only provide new insights into understanding the nucleation and growth but also give guidelines for the design and synthesis of desired nanostructures for specific applications. Finally, the capability of controlling the chemical environment adds another dimension to the existing liquid phase TEM technique, extending the possibilities to study a wide range of dynamic phenomena in liquid media. (© 2022 IOP Publishing Ltd.)
Databáze:	MEDLINE
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