Hydrothermal Synthesis of Nanoparticles: 2nd Edition

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Nanofabrication and Nanomanufacturing".

Deadline for manuscript submissions: 14 March 2025 | Viewed by 2099

Special Issue Editors


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Guest Editor
Department of Environmental and Energy Engineering, The University of Suwon, 17, Wauan-Gil, Hwaseong-si 18323, Gyeonggi-do, Republic of Korea
Interests: supercritical hydrothermal synthesis of metal and metal oxides; non-equilibrium material synthesis; metal substitution; organic-inorganic hybrid materials; nanocatalysts; heavy oil upgrading; lignin degradation; methane reforming; methane oxidative coupling reaction
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Guest Editor
Center for Research, Advanced Studies of the National Polytechnic Institute, Mexico City, Mexico
Interests: hydrothermal synthesis of perovskite oxide materials; hydrothermal self-assembling particle crystal growth on silicate oxides; hydrothermal microwave-assisted processing for nanoparticle synthesis
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The hydrothermal synthesis of nanoparticles is a processing technique that has gained particular interest within material science in the last two decades. Recent developments in the preparation of nanoparticles via heterogeneous chemical solution reactions have allowed for the production of a large number of advanced functional materials. Additionally, the particle size control enhanced using high crystallization kinetics occurring in aqueous substances provides the sufficient conditions to produce nanoparticles of various inorganic compounds. The innovation of technology triggers the challenge of optimizing the synthesis of nanostructured advanced and functional materials to overcome the requirements of the current technology. Hence, hydrothermal synthesis (including the supercritical region) of nanoparticles has emerged as a sustainable technique to produce inorganic materials on a large scale in continuous flow reactors at a relatively low cost.

Therefore, this Special Issue intends to gather state-of-the-art advances—regardless of selective contributions—in the research on the hydrothermal synthesis of nanomaterials. Original and review papers on scientific fundamentals and technological applications of the hydrothermal synthesis of nanoparticles of new nanomaterials for energy storage, catalysis engineering use, and environmental sustainability challenges are particularly welcome.

Dr. Gimyeong Seong
Dr. Juan Carlos Rendón-Angeles
Guest Editors

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Keywords

  • hydrothermal synthesis
  • supercritical fluids
  • reaction kinetics
  • morphology control
  • crystallization
  • crystal growth
  • heterogeneous chemical reactions
  • catalysts
  • nanoparticles
  • functional materials

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Published Papers (1 paper)

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Research

19 pages, 10051 KiB  
Article
Study on the Synthesis of Nano Zinc Oxide Particles under Supercritical Hydrothermal Conditions
by Panpan Sun, Zhaobin Lv and Chuanjiang Sun
Nanomaterials 2024, 14(10), 844; https://doi.org/10.3390/nano14100844 - 12 May 2024
Cited by 2 | Viewed by 1474
Abstract
The supercritical hydrothermal synthesis of nanomaterials has gained significant attention due to its straightforward operation and the excellent performance of the resulting products. In this study, the supercritical hydrothermal method was used with Zn(CH3COO)2·2H2O as the precursor [...] Read more.
The supercritical hydrothermal synthesis of nanomaterials has gained significant attention due to its straightforward operation and the excellent performance of the resulting products. In this study, the supercritical hydrothermal method was used with Zn(CH3COO)2·2H2O as the precursor and deionized water and ethanol as the solvent. Nano-ZnO was synthesized under different reaction temperatures (300~500 °C), reaction times (5~15 min), reaction pressures (22~30 MPa), precursor concentrations (0.1~0.5 mol/L), and ratios of precursor to organic solvent (C2H5OH) (2:1~1:4). The effects of synthesis conditions on the morphology and size of ZnO were studied. It was found that properly increasing hydrothermal temperature and pressure and extending the hydrothermal time are conducive to the more regular morphology and smaller size of ZnO particles, which is mainly achieved through the change of reaction conditions affecting the hydrothermal reaction rate. Moreover, the addition of ethanol makes the morphology of nano-zno more regular and significantly inhibits the agglomeration phenomenon. In addition to the change in physical properties of the solvent, this may also be related to the chemical bond established between ethanol and ZnO. The results show that the optimum synthesis conditions of ZnO are 450 °C, 26 MPa, 0.3 mol/L, 10 min, and the molar ratio of precursor to ethanol is 1:3. Full article
(This article belongs to the Special Issue Hydrothermal Synthesis of Nanoparticles: 2nd Edition)
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