Synthesis of metallic aluminum particles by electrolysis in aqueous solution

Abstract The present work proposes a method for fabricating metallic Al particles in aqueous solution. An aqueous colloidal solution was prepared from an aqueous aluminum nitrate nonahydrate solution by electrolysis using metallic Al plates as the anode and cathode under ultrasonic irradiation in wa...

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Main Authors: Takefumi Hosoya, Takehiro Yonezawa, Noriko Yamauchi, Kouichi Nakashima, Yoshio Kobayashi
Format: Article
Language:English
Published: SpringerOpen 2021-12-01
Series:Micro and Nano Systems Letters
Subjects:
Online Access:https://doi.org/10.1186/s40486-021-00141-4
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author Takefumi Hosoya
Takehiro Yonezawa
Noriko Yamauchi
Kouichi Nakashima
Yoshio Kobayashi
author_facet Takefumi Hosoya
Takehiro Yonezawa
Noriko Yamauchi
Kouichi Nakashima
Yoshio Kobayashi
author_sort Takefumi Hosoya
collection DOAJ
description Abstract The present work proposes a method for fabricating metallic Al particles in aqueous solution. An aqueous colloidal solution was prepared from an aqueous aluminum nitrate nonahydrate solution by electrolysis using metallic Al plates as the anode and cathode under ultrasonic irradiation in water at 25–45 °C. The sizes of the particles in the colloidal solutions prepared at 25, 35, and 45 °C were 76.3, 77.0, and 84.7 nm, respectively. The powder obtained from the colloidal solution prepared at 25 °C was not crystalline. By contrast, the powders obtained from the colloidal solutions prepared at 35 and 45 °C had a crystal structure of cubic Al and crystal sizes of 55.7 and 59.3 nm, respectively. Thus, elevated temperatures promoted both particle growth and crystal growth, which was explained by higher temperatures increasing the frequency and energy of particle collisions. The metallic Al particles were chemically stable in both an aqueous solution and the ambient atmosphere. The chemically stable metallic Al particles are expected to be used as sources for fabricating materials related to fuels, energy storage, and pigments.
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spelling doaj.art-41e5f0f6e6a049c1914d42684e2afbf12022-12-21T22:41:44ZengSpringerOpenMicro and Nano Systems Letters2213-96212021-12-01911610.1186/s40486-021-00141-4Synthesis of metallic aluminum particles by electrolysis in aqueous solutionTakefumi Hosoya0Takehiro Yonezawa1Noriko Yamauchi2Kouichi Nakashima3Yoshio Kobayashi4Department of Materials Science and Engineering, Graduate School of Science and Engineering, Ibaraki UniversityCentral Research Institute, Mitsubishi Materials CorporationDepartment of Materials Science and Engineering, Graduate School of Science and Engineering, Ibaraki UniversityDepartment of Materials Science and Engineering, Graduate School of Science and Engineering, Ibaraki UniversityDepartment of Materials Science and Engineering, Graduate School of Science and Engineering, Ibaraki UniversityAbstract The present work proposes a method for fabricating metallic Al particles in aqueous solution. An aqueous colloidal solution was prepared from an aqueous aluminum nitrate nonahydrate solution by electrolysis using metallic Al plates as the anode and cathode under ultrasonic irradiation in water at 25–45 °C. The sizes of the particles in the colloidal solutions prepared at 25, 35, and 45 °C were 76.3, 77.0, and 84.7 nm, respectively. The powder obtained from the colloidal solution prepared at 25 °C was not crystalline. By contrast, the powders obtained from the colloidal solutions prepared at 35 and 45 °C had a crystal structure of cubic Al and crystal sizes of 55.7 and 59.3 nm, respectively. Thus, elevated temperatures promoted both particle growth and crystal growth, which was explained by higher temperatures increasing the frequency and energy of particle collisions. The metallic Al particles were chemically stable in both an aqueous solution and the ambient atmosphere. The chemically stable metallic Al particles are expected to be used as sources for fabricating materials related to fuels, energy storage, and pigments.https://doi.org/10.1186/s40486-021-00141-4AluminumParticleAqueous colloidal solutionElectrolysis
spellingShingle Takefumi Hosoya
Takehiro Yonezawa
Noriko Yamauchi
Kouichi Nakashima
Yoshio Kobayashi
Synthesis of metallic aluminum particles by electrolysis in aqueous solution
Micro and Nano Systems Letters
Aluminum
Particle
Aqueous colloidal solution
Electrolysis
title Synthesis of metallic aluminum particles by electrolysis in aqueous solution
title_full Synthesis of metallic aluminum particles by electrolysis in aqueous solution
title_fullStr Synthesis of metallic aluminum particles by electrolysis in aqueous solution
title_full_unstemmed Synthesis of metallic aluminum particles by electrolysis in aqueous solution
title_short Synthesis of metallic aluminum particles by electrolysis in aqueous solution
title_sort synthesis of metallic aluminum particles by electrolysis in aqueous solution
topic Aluminum
Particle
Aqueous colloidal solution
Electrolysis
url https://doi.org/10.1186/s40486-021-00141-4
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AT takehiroyonezawa synthesisofmetallicaluminumparticlesbyelectrolysisinaqueoussolution
AT norikoyamauchi synthesisofmetallicaluminumparticlesbyelectrolysisinaqueoussolution
AT kouichinakashima synthesisofmetallicaluminumparticlesbyelectrolysisinaqueoussolution
AT yoshiokobayashi synthesisofmetallicaluminumparticlesbyelectrolysisinaqueoussolution