Articles de revues : « Sol-gel »

1

Shkuropatenko, V. A. « Sol-gel synthesis of NZP phosphates ». Functional materials 23, n^o 1 (15 mars 2016) : 92–97. http://dx.doi.org/10.15407/fm23.01.092.

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MACKENZIE, John D. « Sol-Gel Optics ». Journal of the Ceramic Society of Japan 101, n^o 1169 (1993) : 1–10. http://dx.doi.org/10.2109/jcersj.101.1.

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3

NAKAZUMI, Hiroyuki. « Sol-Gel Process ». Journal of the Japan Society of Colour Material 68, n^o 4 (1995) : 245–51. http://dx.doi.org/10.4011/shikizai1937.68.245.

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4

Livage, J. « Sol-gel processes ». Current Opinion in Solid State and Materials Science 2, n^o 2 (avril 1997) : 132–38. http://dx.doi.org/10.1016/s1359-0286(97)80057-5.

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Livage, J., et C. Sanchez. « Sol-gel chemistry ». Journal of Non-Crystalline Solids 145 (janvier 1992) : 11–19. http://dx.doi.org/10.1016/s0022-3093(05)80422-3.

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Moszner, Norbert, Alexandros Gianasmidis, Simone Klapdohr, Urs Karl Fischer et Volker Rheinberger. « Sol–gel materials ». Dental Materials 24, n^o 6 (juin 2008) : 851–56. http://dx.doi.org/10.1016/j.dental.2007.10.004.

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LIVAGE, J. « Sol-gel ionics ». Solid State Ionics 50, n^o 3-4 (février 1992) : 307–13. http://dx.doi.org/10.1016/0167-2738(92)90234-g.

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8

Schmidt, H. « Sol-Gel-Processing ». Physik Journal 45, n^o 10 (octobre 1989) : 418–19. http://dx.doi.org/10.1002/phbl.19890451014.

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9

Schubert, Ulrich. « Sol-Gel-Chemie ». Chemie in unserer Zeit 52, n^o 1 (8 septembre 2017) : 18–25. http://dx.doi.org/10.1002/ciuz.201700792.

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10

Reuter, Hans. « Sol-gel processes ». Advanced Materials 3, n^o 5 (mai 1991) : 258–59. http://dx.doi.org/10.1002/adma.19910030510.

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11

Guglielmi, Massimo. « Sol-gel science ». Materials Chemistry and Physics 26, n^o 2 (octobre 1990) : 211–12. http://dx.doi.org/10.1016/0254-0584(90)90039-d.

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12

Kay, Bruce D., et Roger A. Assink. « Sol-gel kinetics ». Journal of Non-Crystalline Solids 104, n^o 1 (août 1988) : 112–22. http://dx.doi.org/10.1016/0022-3093(88)90189-5.

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13

Simonenko, E. P., et V. K. Ivanov. « Sol-gel synthesis and research of inorganic compounds, hybrid functional materials and disperse systems ». Žurnal neorganičeskoj himii 69, n^o 4 (19 octobre 2024) : 465–69. http://dx.doi.org/10.31857/s0044457x24040017.

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The results are summarised of the Seventh International Conference of CIS countries “Sol-gel synthesis and research of inorganic compounds, hybrid functional materials and disperse systems “Sol-gel 2023”, the key reports are discussed within the scientific sections: Theoretical aspects of sol-gel process; Films, coatings and membranes obtained using sol-gel technology; Hybrid organic-inorganic sol-gel materials; Xerogels, glasses and bulk ceramic materials synthesized by sol-gel method; Nano- and microstructured materials, nanotechnology; Methods of research of structure and properties of materials obtained using sol-gel synthesis.

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14

Zhou, Qi, Ping Zhao, Chun Lin He et Qing Kui Cai. « Alumina Sol-Gel Film for Pretreatment to Paint on Aluminum Alloy ». Advanced Materials Research 239-242 (mai 2011) : 1678–81. http://dx.doi.org/10.4028/www.scientific.net/amr.239-242.1678.

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Aluminum alloy coatings for pretreatment are developed by sol-gel method. The adhesion between sol-gel film and the paint film was measured by scratching circles and corrosion resistance of sol-gel film was tested by salt spraying experiment. The adhesion between sol-gel film made by pure alumina sol and the paint film was so poor that it is unsuitable for ground coatings, but the composite sol which ultrafine Al2O3 powder was added to pure alumina sol can improve the adhesion and corrosion resistance. If the first layer film is made of pure alumina sol and the second layer is made of composite sol, the neutral salt spraying time of double layers film is longer than the single-layer composite sol-gel film. The adhesion for both double composite film and single-layer composite sol-gel film are first-grade. When solution of potessium dichromate is dropped on double combinatorial film for 100s, the solution will change in color. The gloss of paint film on double composite sol-gel film is 0.827, flexibility is 2×10mm and impact resistance is 1kg∙50cm. It is possible that composite sol-gel film or combinatorial sol-gel film replace dichromate salt conversion film on aluminum alloy using for painting pretreatment.

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15

Bao, Li, Xi Wei Qi, Bo Ni, Min Zhang et Rui Bin Mei. « BiFeO₃ Powders Synthesized by Different Sol-Gel Methods ». Key Engineering Materials 697 (juillet 2016) : 84–88. http://dx.doi.org/10.4028/www.scientific.net/kem.697.84.

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The multiferroic BiFeO3 powders with perovskite structure were synthesized by sol-gel auto-combustion and conventional sol-gel methods, respectively. As-prepared powders were characterized by XRD, SEM and VSM techniques to investigate phase structure, microstructure and magnetic properties. The results show that the pure phase BiFeO3 powders are obtained successfully by sol-gel auto-combustion after calcining at 650°C for 2h and leaching by HNO3. Compared with conventional sol-gel method which got pure phase BiFeO3 powders at 800°C for 3h, the sol-gel auto-combustion technique can get more pure powders at low temperature, short time and low cost. The particle sizes of the BiFeO3 powders are smaller and well distributed by the sol-gel auto-combustion method than that of the conventional sol-gel method. Furthermore, the magnetic properties at room temperature prepared by the sol-gel auto-combustion methods are significant higher than that of conventional sol-gel method.

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16

Bowan, Christopher N., et Nicholas A. Peppas. « Sol-Gel processing : The physics and chemistry of sol-gel processing ». Journal of Controlled Release 15, n^o 2 (avril 1991) : 186. http://dx.doi.org/10.1016/0168-3659(91)90078-r.

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Zhou, Qi, Xuan Xiao, Da Li Zhao et En Jun Song. « Alumina Sol-Gel Films and Alodine Films on Al 2024 Alloy ». Advanced Materials Research 356-360 (octobre 2011) : 364–67. http://dx.doi.org/10.4028/www.scientific.net/amr.356-360.364.

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Development of the sol-gel films for painting pretreatment of aluminium alloy is to replace bichromate conversion films such as Alodine. Corrosion resistance of Alodine film and sol-gel film were evaluated through potentiodynamic polarization curves, electrochemical impedance spectroscopy, salt spraying and acidic dropping solution. Sol-gel film is almost the same as Alodine film at the film surface density, salt spraying resistance and adhesion with painting coating. Changing color times of dropping solution on sol-gel film is shorter than Alodine film. But the corrosion current of sol-gel film is lower than Alodine and the impedance value is higher than Alodine in 35g/L NaCl solution. Mechanism of corrosion resistance of alumina sol-gel film is that the cathode reaction and anodic reactions are restrained by sol-gel film in the Cl- corrosive medium. The EIS of sol-gel film consisted of only a single capacitive arc with one time constant. Sol-gel coating can prevent or delay the corrosive solution from infiltrating the substrate for its better isolation function, thus protecting 2024 aluminium alloy from corrosion. Sol-gel films can improve corrosion resistance of aluminum alloy and have the same adhesion as Alodine film. It will be a promising alternative pretreatment for aluminum alloys prior to painting.

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18

Merghes, Petru, Gheorghe Ilia, Bianca Maranescu, Narcis Varan et Vasile Simulescu. « The Sol–Gel Process, a Green Method Used to Obtain Hybrid Materials Containing Phosphorus and Zirconium ». Gels 10, n^o 10 (13 octobre 2024) : 656. http://dx.doi.org/10.3390/gels10100656.

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The sol–gel process is a green method used in the last few decades to synthesize new organic–inorganic phosphorus-containing hybrid materials. The sol–gel synthesis is a green method because it takes place in mild conditions, mostly by using water or alcohol as solvents, at room temperature. Therefore, the sol–gel method is, among others, a promising route for obtaining metal-phosphonate networks. In addition to phosphorus, the obtained hybrid materials could also contain titanium, zirconium, boron, and other elements, which influence their properties. The sol–gel process has two steps: first, the sol formation, and second, the transition to the gel phase. In other words, the sol–gel process converts the precursors into a colloidal solution (sol), followed by obtaining a network (gel). By using the sol–gel method, different organic moieties could be introduced into an inorganic matrix, resulting in organic–inorganic hybrid structures (sometimes they are also referred as organic–inorganic copolymers).

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19

Myasoedova, Tatiana N., Rajathsing Kalusulingam et Tatiana S. Mikhailova. « Sol-Gel Materials for Electrochemical Applications : Recent Advances ». Coatings 12, n^o 11 (26 octobre 2022) : 1625. http://dx.doi.org/10.3390/coatings12111625.

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This review article emphases on the modern approaches to the types of sol-gel materials that are beneficial for electrochemistry, monitored by a report of recent advances in the numerous fields of sol-gel electrochemistry. Modified electrodes for sensors and supercapacitors as well as anti-corrosion are described. Sol-gel synthesis expands the capabilities of technologists to obtain highly porous, homogeneous, and hybrid thin-film materials for supercapacitor electrode application. The widespread materials are transition metal oxides, but due to their low conductivity, they greatly impede the rate capability of electrochemical supercapacitors. The way to optimize their properties is the production of complex oxides or different composites. Among the new materials, a special place is occupied by perovskites and materials with an olivine-type structure, which can be easily obtained by the sol-gel method. The sol-gel coating process has demonstrated excellent chemical stability to advance the corrosion resistance of the various metal alloy substrates. Furthermore, the sol-gel process is a user-friendly technique for applying a hybrid sol-gel coating to provide corrosion resistance. The hybrid sol-gel coating technique is the most attractive, easy to prepare at a lower temperature, and has shown the potential to swap Cr-based coatings. The hybrid sol-gel coating has exhibited promising properties of adherent and uses chemically inert to enhance the corrosion resistance of the metal and alloys. Hence, this review article emphases on the recent advances and approaches in the sol-gel coating processes that influence the belongings of its hybrid sol-gel coating for protecting metal substrates and their alloys from corrosion. In addition, the author discusses the current problem and challenges of hybrid anti-corrosion sol-gel coatings. Metal oxides and composites based on them are actively used to create electrochemical sensors. They synthesized, including the anhydrous and citrate sol-gel methods. Such materials are widely used as glucose biosensors and harmful gas sensors.

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Ahmed, Toufique, R. Tugrul Ogulata et Osman Gülnaz. « Investigations on Different Sol-gel Incorporation Methods of Green Synthesized AgNPs in Textiles for Antibacterial Activity ». Textile & ; Leather Review 6 (12 septembre 2023) : 452–74. http://dx.doi.org/10.31881/tlr.2023.088.

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Sol-gel is an excellent antibacterial agent carrier. Different researchers incorporated various antibacterial substances, including silver nitrate (AgNO3), quarternary ammonium chloride (QAC), and titanium dioxide (TiO2) in sol-gel. However, there is limited study on the influence of pH and acid hydrolysis time (ageing) to form sol-gel. Besides, few investigations have been made on the influence of fabric structure and silver nanoparticles (AgNPs) incorporation into fabrics by the sol-gel method. This study also compared the light and heavy fabrics in terms of sol-gel application and the advantages of sol-gel over other AgNPs incorporation methods. The sol-gel-AgNPs incorporated fabric samples were characterized by Ultra Violet Spectroscopy (UV-VIS), X-ray diffraction (XRD), Scanning Electron Microscope (SEM), and Energy Dispersion spectroscopy (EDS). For AgNPs synthesis in a green way, we used Calendula arvensis, a Mediterranean weed. This study found, that for sol-gel formation the minimum acid hydrolysis time was 5.30 hours, 6.30 hours, and 8.00 hours at 60 ºC, 25 ºC, and 3 ºC, respectively. After ageing, a minuscule amount of alkaline was needed for gelation. Seven different methods for incorporating AgNPs through sol-gel have been illustrated. The lower molarity of AgNO3, having a more significant portion in the sol-gel solution, had excellent antibacterial activity and wash fastness. Besides, the ex-situ method was better than the in-situ method. Among different types of cotton fabric, lightweight knit fabric showed much better antibacterial activity than heavier twill fabric.

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21

Na, Moon Kyong, Dong Pil Kang, Hoy Yul Park, Myeong Sang Ahn et In Hye Myung. « Properties of Nano-Hybrid Sol-Gel Materials Synthesized from Colloidal Silica-Silane Containing Epoxy Silane ». Key Engineering Materials 336-338 (avril 2007) : 2278–81. http://dx.doi.org/10.4028/www.scientific.net/kem.336-338.2278.

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Three kinds of colloidal silica (CS)/silane sol solutions were synthesized in variation with parameters such as different acidity and reaction time. Sol solutions were prepared from HSA CS/ methyltrimethoxysilane (MTMS), LS CS/MTMS and LS CS/MTMS/γ -Glycidoxypropyltri methoxysilane (ES) solutions. In order to understand their physical and chemical properties, sol-gel coating films were fabricated on glass. Coating films on glass, obtained from LS/MTMS sol, had high contact angle, also, much enhanced flat surface in the case of LS/MTMS sol was observed in comparison with HSA/ MTMS sol. From all sol-gel solutions, seasoning effect of for enhancing properties of sol-gel coating layer on glass was observed while such sol-gel solutions were left for 7days. In initial stage of sol-gel reaction, all most of sol solutions used in this work seem to be unstable, formation of coating films was a little hazy and rough. However, improved coating films as observed in 4days later. LS/MTMS/ES sol solutions were synthesized with ES, adding to LS/MTMS sol. Contact angle of LS/MTMS/ES sol-gel coating films decreased, since ES played a role in forming hydrophilic hydroxyl sol. The elastic portion of coating films prepared from LS/MTMS/ES sol increased with addition of ES, but thermal stability decreased a little.

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Sangsubun, Chontira, Anucha Watcharapasorn, Manoch Naksata, Tawee Tunkasiri et Sukanda Jiansirisomboon. « Sol-Gel Bonded Piezoelectric Lead Zirconate Titanate Ceramics ». Advances in Science and Technology 45 (octobre 2006) : 2477–82. http://dx.doi.org/10.4028/www.scientific.net/ast.45.2477.

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The sol-gel bonded lead zirconate titanate, PbZr0.52Ti0.48O3 (PZT), ceramics were prepared by calcining and sintering at high temperatures the mixture between a conventional mixedoxide powder and a sol from a triol sol-gel method. The effects of sintering condition on phase formation, microstructures and dielectric properties were investigated and compared with the conventional and sol-gel PZT ceramics. X-ray diffraction analysis indicated that, in the ceramics containing sol-gel powder, the crystal structure changed from tetragonal to rhombohedral phase as the sintering temperature increased from 1150°C to 1200°C. This change in crystal structure also affected the microstructure of the ceramics. The dielectric constants at Tc of the sol-gel ceramics were found to be greatest and this suggested a possible use of sol-gel powder to produce PZT ceramics for high temperature applications.

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23

Barachevsky, V. A. « Photochromic Sol–Gel Systems ». High Energy Chemistry 55, n^o 2 (mars 2021) : 101–13. http://dx.doi.org/10.1134/s001814392102003x.

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Kelleher, M. C., T. C. Kelly et J. Corish. « Solution Sol-Gel Mullite ». Key Engineering Materials 72-74 (janvier 1992) : 453–68. http://dx.doi.org/10.4028/www.scientific.net/kem.72-74.453.

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Atkinson, Alan, J. Doorbar, D. L. Segal et P. J. White. « Sol-Gel Ceramic Pigments ». Key Engineering Materials 150 (février 1998) : 15–20. http://dx.doi.org/10.4028/www.scientific.net/kem.150.15.

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Spiccia, L., B. O. West, J. Cullen, D. De Villiers, I. Watkins, J. M. Bell, Besim Ben-Nissan, M. Anast et G. Johnston. « Sol-Gel Precursor Chemistry ». Key Engineering Materials 53-55 (janvier 1991) : 445–50. http://dx.doi.org/10.4028/www.scientific.net/kem.53-55.445.

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Klein, L. C. « Sol-Gel Optical Materials ». Annual Review of Materials Science 23, n^o 1 (août 1993) : 437–52. http://dx.doi.org/10.1146/annurev.ms.23.080193.002253.

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Ali, A. F., P. Mustarelli, E. Quartarone, C. Tomasi, P. Baldini et A. Magistris. « Sol-gel Lithium Borophosphates ». Journal of Materials Research 14, n^o 4 (avril 1999) : 1510–15. http://dx.doi.org/10.1557/jmr.1999.0202.

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In this paper we present sol-gel synthesis and thermal and structural characterization of some lithium borophosphates. The as-prepared samples are mostly partially crystalline, and densification heat treatments at 500 °C cause samples to crystallize. In the phosphorus-rich part of the composition triangle we have lithium excess with respect to the nominal composition, which is likely due to the low reactivity of the phosphorus precursor. On the boron-rich side, in contrast, lithium losses are found which probably occur during syneresis.

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Vinogradov, Vladimir V., Alexander Agafonov et David Avnir. « Conductive sol–gel films ». Journal of Materials Chemistry C 2, n^o 20 (2014) : 3914. http://dx.doi.org/10.1039/c3tc32462a.

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Pierre, A. C. « Porous sol-gel ceramics ». Ceramics International 23, n^o 3 (janvier 1997) : 229–38. http://dx.doi.org/10.1016/s0272-8842(96)00030-2.

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Hench, Larry L., et Jon K. West. « The sol-gel process ». Chemical Reviews 90, n^o 1 (janvier 1990) : 33–72. http://dx.doi.org/10.1021/cr00099a003.

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Bigham, Shaun, Jennifer Medlar, Abuzar Kabir, Chetan Shende, Abdel Alli et Abdul Malik. « Sol−Gel Capillary Microextraction ». Analytical Chemistry 74, n^o 4 (février 2002) : 752–61. http://dx.doi.org/10.1021/ac0109523.

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33

Levy, David. « Photochromic Sol−Gel Materials ». Chemistry of Materials 9, n^o 12 (décembre 1997) : 2666–70. http://dx.doi.org/10.1021/cm970355q.

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Hayashi, Yoshihiro, et John B. Blum. « Sol-gel derived PbTiO3 ». Journal of Materials Science 22, n^o 7 (juillet 1987) : 2655–60. http://dx.doi.org/10.1007/bf01082159.

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Blum, J. B., et S. R. Gurkovich. « Sol-gel-derived PbTiO3 ». Journal of Materials Science 20, n^o 12 (décembre 1985) : 4479–83. http://dx.doi.org/10.1007/bf00559337.

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Mac�do, M. A., et M. A. Aegerter. « Sol-gel electrochromic device ». Journal of Sol-Gel Science and Technology 2, n^o 1-3 (1994) : 667–71. http://dx.doi.org/10.1007/bf00486329.

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Joanny, J. F. « The sol-gel transition ». Physica B : Condensed Matter 156-157 (janvier 1989) : 381–85. http://dx.doi.org/10.1016/0921-4526(89)90684-4.

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Jean, Jau-Ho. « Sol-gel derived LiTaO3 ». Journal of Materials Science 25, n^o 2 (février 1990) : 859–64. http://dx.doi.org/10.1007/bf03372173.

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Righini, Giancarlo C., et Stefano Pelli. « Sol-gel glass waveguides ». Journal of Sol-Gel Science and Technology 8, n^o 1-3 (février 1997) : 991–97. http://dx.doi.org/10.1007/bf02436973.

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Dislich, Helmut. « Sol-Gel 1984 → 2004 (?) ». Journal of Non-Crystalline Solids 73, n^o 1-3 (août 1985) : 599–612. http://dx.doi.org/10.1016/0022-3093(85)90379-5.

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Mahltig, B., D. Fiedler et H. B�ttcher. « Antimicrobial Sol?Gel Coatings ». Journal of Sol-Gel Science and Technology 32, n^o 1-3 (décembre 2004) : 219–22. http://dx.doi.org/10.1007/s10971-004-5791-7.

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Böttcher, Horst. « Bioactive Sol-Gel Coatings ». Journal für praktische Chemie 342, n^o 5 (juin 2000) : 427–36. http://dx.doi.org/10.1002/1521-3897(200006)342:5<427 ::aid-prac427>3.0.co;2-b.

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Thomas, Jeena, Ajith Verghese George et Vinoy Thomas. « Sol-Gel Synthesis and Spectroscopic Analysis of Chromium in Sol Gel Silica ». Asian Journal of Chemistry 25, n^o 12 (2013) : 6767–70. http://dx.doi.org/10.14233/ajchem.2013.14612.

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Schelle, C., M. Mennig, H. Krug, G. Jonschker et H. Schmidt. « One step antiglare sol—gel coating for screens by sol—gel techniques ». Journal of Non-Crystalline Solids 218 (septembre 1997) : 163–68. http://dx.doi.org/10.1016/s0022-3093(97)00290-1.

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TAKAHASHI, MASAOKI. « Polymer Gel near the Sol-Gel Transition. » NIPPON GOMU KYOKAISHI 66, n^o 4 (1993) : 237–44. http://dx.doi.org/10.2324/gomu.66.237.

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Parashar, V. K., V. Raman et O. P. Bahl. « Sol—gel preparation of silica gel monoliths ». Journal of Non-Crystalline Solids 201, n^o 1-2 (juin 1996) : 150–52. http://dx.doi.org/10.1016/0022-3093(96)00183-4.

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Lim, Eun Seob, Min-Cheol Lim, Kisang Park, Gaeul Lee, Jeong-A. Lim, Min-Ah Woo, Nari Lee, Sung-Wook Choi et Hyun-Joo Chang. « Selective Binding and Elution of Aptamers for Pesticides Based on Sol-Gel-Coated Nanoporous Anodized Aluminum Oxide Membrane ». Nanomaterials 10, n^o 8 (5 août 2020) : 1533. http://dx.doi.org/10.3390/nano10081533.

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Sol-gel-based mesopores allow the entry of target small molecules retained in their cavity and aptamers to bind to target molecules. Herein, sol-gel-based materials are applied to screen-selective aptamers for small molecules, such as pesticides. To enhance the efficiency of aptamer screening using a sol-gel, it is necessary to increase the binding surface. In this study, we applied the sol-gel to an anodized aluminum oxide (AAO) membrane, and the morphological features were observed via electron microscopy after spin coating. The binding and elution processes were conducted and confirmed by fluorescence microscopy and polymerase chain reaction. The sol-gel coating on the AAO membrane formed a hollow nanocolumn structure. A diazinon-binding aptamer was bound to the diazinon-containing sol-gel-coated AAO membrane, and the bound aptamer was effectively retrieved from the sol-gel matrix by thermal elution. As a proof of concept, a sol-gel-coated AAO disc was mounted on the edge of a pipette tip, and the feasibility of the prepared platform for the systematic evolution of ligands by exponential enrichment (SELEX) of the aptamer binding was also confirmed. The proposed approach will be applied to an automated SELEX cycle using an automated dispenser, such as a pipetting robot, in the near future.

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Tan, Wai Kian, Hiroyuki Muto, Go Kawamura, Zainovia Lockman et Atsunori Matsuda. « Nanomaterial Fabrication through the Modification of Sol–Gel Derived Coatings ». Nanomaterials 11, n^o 1 (13 janvier 2021) : 181. http://dx.doi.org/10.3390/nano11010181.

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In materials processing, the sol–gel method is one of the techniques that has enabled large-scale production at low cost in the past few decades. The versatility of the method has been proven as the fabrication of various materials ranging from metallic, inorganic, organic, and hybrid has been reported. In this review, a brief introduction of the sol–gel technique is provided and followed by a discussion of the significance of this method for materials processing and development leading to the creation of novel materials through sol–gel derived coatings. The controlled modification of sol–gel derived coatings and their respective applications are also described. Finally, current development and the outlook of the sol–gel method for the design and fabrication of nanomaterials in various fields are described. The emphasis is on the significant potential of the sol–gel method for the development of new, emerging technologies.

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Li, Qiang, Wei Ying Liu, Guo Yin Sun et Juan Fang Shang. « Research Progress of Combined Application of Sol-Gel and Electrochemistry ». Key Engineering Materials 768 (avril 2018) : 119–28. http://dx.doi.org/10.4028/www.scientific.net/kem.768.119.

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There were many advantages for functional materials production using Sol-gel method, such as low operating temperature and easy doping. So, it was widely used in materials preparation, such as nano powders, films, functional glass, nanoceramic and modified electrode. The sol-gel modified electrode has extensive application in electrochemical analysis and electrochemical sensors. In addition, the film by electrodeposition can be tightly assembled on electrode substrate and its structure and shape can be easily regulated. So, The two methods are combined to make better use of their respective advantages. Up to now, the film materials using electrochemically induced sol-gel had been used in electrochemistry analysis and functional films preparation. In this paper, it was summarized that the progress of combined application of sol-gel and electrochemistry. Mainly including sol-gel materials, modified electrodes, electrochemical analysis and sensors, and electrochemical induction sol-gel method for the preparation of thin film materials.

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Kimura, Hiroshi. « Influence of Sol–Gel State in Smectite Aqueous Dispersions on Drying Patterns of Droplets ». Materials 17, n^o 12 (13 juin 2024) : 2891. http://dx.doi.org/10.3390/ma17122891.

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The sol–gel state of smectite clay dispersions varies with the volume fraction of clay and electrolyte concentration. In this study, it was elucidated that the drying patterns of droplets from four types of smectite clay dispersions vary according to their sol–gel states. Droplets in the sol state exhibited a ring-shaped pattern, while those in the gel state showed a bump-shaped pattern. Near the boundary between the sol and gel states, patterns featuring both ring and bump structures were observed regardless of whether the droplets were on the sol or gel side. When guest particles or molecules were introduced into the clay dispersion, they dispersed uniformly within the system, and the drying pattern depended on the sol–gel state of the droplets. These findings suggest that the presence or absence of convection within the droplets during drying governs the drying pattern.

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