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Volume 21
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10.3390/ijms21093271
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Article

Network of Palladium-Based Nanorings Synthesized by Liquid-Phase Reduction Using DMSO-H2O: In Situ Monitoring of Structure Formation and Drying Deformation by ASEM

by
Takuki Komenami
1,
Akihiro Yoshimura
1,
Yasunari Matsuno
1,*,
Mari Sato
2 and
Chikara Sato
2,*
1
Graduate School of Science and Engineering, Chiba University, Chiba 263-8522, Japan
2
Health and Medical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 305-8566, Japan
*
Authors to whom correspondence should be addressed.
Int. J. Mol. Sci. 2020, 21(9), 3271; https://doi.org/10.3390/ijms21093271
Submission received: 25 March 2020 / Revised: 28 April 2020 / Accepted: 28 April 2020 / Published: 5 May 2020
(This article belongs to the Special Issue Liquid-Phase Electron Microscopy in Biological Applications and Material Sciences)
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Abstract

We developed a liquid-phase synthesis method for Pd-based nanostructure, in which Pd dissolved in dimethyl sulfoxide (DMSO) solutions was precipitated using acid aqueous solution. In the development of the method, in situ monitoring using atmospheric scanning electron microscopy (ASEM) revealed that three-dimensional (3D) Pd-based nanonetworks were deformed to micrometer-size particles possibly by the surface tension of the solutions during the drying process. To avoid surface tension, critical point drying was employed to dry the Pd-based precipitates. By combining ASEM monitoring with critical point drying, the synthesis parameters were optimized, resulting in the formation of lacelike delicate nanonetworks using citric acid aqueous solutions. Precipitation using HCl acid aqueous solutions allowed formation of 500-nm diameter nanorings connected by nanowires. The 3D nanostructure formation was controllable and modifiable into various shapes using different concentrations of the Pd and Cl ions as the parameters.
Keywords: atmospheric scanning electron microscopy; critical point drying; nanoparticles; nanostructures; precious metals atmospheric scanning electron microscopy; critical point drying; nanoparticles; nanostructures; precious metals
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MDPI and ACS Style

Komenami, T.; Yoshimura, A.; Matsuno, Y.; Sato, M.; Sato, C. Network of Palladium-Based Nanorings Synthesized by Liquid-Phase Reduction Using DMSO-H2O: In Situ Monitoring of Structure Formation and Drying Deformation by ASEM. Int. J. Mol. Sci. 2020, 21, 3271. https://doi.org/10.3390/ijms21093271

AMA Style

Komenami T, Yoshimura A, Matsuno Y, Sato M, Sato C. Network of Palladium-Based Nanorings Synthesized by Liquid-Phase Reduction Using DMSO-H2O: In Situ Monitoring of Structure Formation and Drying Deformation by ASEM. International Journal of Molecular Sciences. 2020; 21(9):3271. https://doi.org/10.3390/ijms21093271

Chicago/Turabian Style

Komenami, Takuki, Akihiro Yoshimura, Yasunari Matsuno, Mari Sato, and Chikara Sato. 2020. "Network of Palladium-Based Nanorings Synthesized by Liquid-Phase Reduction Using DMSO-H2O: In Situ Monitoring of Structure Formation and Drying Deformation by ASEM" International Journal of Molecular Sciences 21, no. 9: 3271. https://doi.org/10.3390/ijms21093271

APA Style

Komenami, T., Yoshimura, A., Matsuno, Y., Sato, M., & Sato, C. (2020). Network of Palladium-Based Nanorings Synthesized by Liquid-Phase Reduction Using DMSO-H2O: In Situ Monitoring of Structure Formation and Drying Deformation by ASEM. International Journal of Molecular Sciences, 21(9), 3271. https://doi.org/10.3390/ijms21093271

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