Dependence of moisture absorption property on sol–gel process of transparent nano-structured γ-Al2O3 ceramics

Saha, Dibyajyoti; Mistry, Kalyan Kumar; Giri, Runa; Guha, A; Sensgupta, Kamalendu

doi:10.1016/j.snb.2005.01.002

Cited by 30 publications

(12 citation statements)

References 17 publications

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“…In many instances, a dry gel needs further thermal treatment to be densified [20]. The sol-gel process versatility allows incorporation of additional components that introduce material's complementary functionalities, such as UV protection [21,22], anti-fouling [23,24], anti-reflection [25][26][27][28][29], moisture resistance [29][30][31][32][33], corrosion and adhesion protection [34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50][51][52][53], along with the enhancement of mechanical, thermal, and optical properties, opening a wide range of application in several fields of science. Furthermore, this method allows the control of several experimental conditions leading to a simple sequence that may be tuned to the nature, final shape, and desired function.…”

Section: General Background Of Sol-gel Coatings For Corrosion Mitigationmentioning

confidence: 99%

Hybrid Sol-Gel Coatings: Smart and Green Materials for Corrosion Mitigation

et al. 2016

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Corrosion degradation of materials and metallic structures is one of the major issues that give rise to depreciation of assets, causing great financial outlays in their recovery and or prevention. Therefore, the development of active corrosion protection systems for metallic substrates is an issue of prime importance. The promising properties and wide application range of hybrid sol-gel-derived polymers have attracted significant attention over recent decades. The combination of organic polymers and inorganic materials in a single phase provides exceptional possibilities to tailor electrical, optical, anticorrosive, and mechanical properties for diverse applications. This unlimited design concept has led to the development of hybrid coatings for several applications, such as transparent plastics, glasses, and metals to prevent these substrates from permeation, mechanical abrasion, and corrosion, or even for decorative functions. Nevertheless, the development of new hybrid products requires a basic understanding of the fundamental chemistry, as well as of the parameters that influence the processing techniques, which will briefly be discussed. Additionally, this review will also summarize and discuss the most promising sol-gel coatings for corrosion protection of steel, aluminium, and their alloys conducted at an academic level.

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Section: General Background Of Sol-gel Coatings For Corrosion Mitigationmentioning

confidence: 99%

Hybrid Sol-Gel Coatings: Smart and Green Materials for Corrosion Mitigation

et al. 2016

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“…[16][17][18] Nanoparticles have been synthesized by a variety of techniques and methods including ball milling, 19 sol-gel, 20 pyrolysis 21 and hydrothermal 22 methods. Application of electrochemical method for generating metal oxide nanoparticles has been also reported.…”

Section: Introductionmentioning

confidence: 99%

In situ One‐pot Electrochemical Synthesis of Aluminum Oxide/polyaniline Nanocomposite; Characterization and Its Adsorption Properties towards Some Heavy Metal Ions

Piri

Rajabi

et al. 2015

J Chinese Chemical Soc

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Aluminum oxide/polyaniline nanocomposite is prepared by a new and one-pot method including in situ electrooxidation of aluminum and electropolymerization of aniline. The product has been characterized by elemental analysis, FT-IR spectroscopy, X-ray diffraction (XRD), Field Emission Scanning Electron Micrographs (FESEM), and Transmission Electron Micrographs (TEM) techniques. ICP-OES was used for determination of aluminum in the prepared nanocomposite. A porous structure of the prepared composite has been shown by FESEM images. TEM of the product confirms the presence of exfoliated aluminum oxide nanofibers. The adsorption potentials of the prepared nanocomposite towards Cu 2+ , Pb 2+ , Zn 2+ , Cd 2+ , Ni 2+ and Co 2+ ions were evaluated in batch adsorption experiments. The results show that the adsorption efficiency is controlled by aqueous phase pH. The experimental data was well interpreted by considering the Langmuir model. The kinetics of the adsorption processes can be well interpreted by pseudo-second-order equation.

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“…Sorption methods have the best set of characteristics for measuring small humidity concentrations among the known methods for humidity measurement [1][2][3][4]. It is still necessary to take into account the gas temperature, or to stabilise the temperature of the sensor's surface at measurements in the microhumidity range.…”

Section: Introductionmentioning

confidence: 99%

“…Polymer or highly porous oxide (Al 2 O 3 , SiO x , TiO x , etc.) films are usually used for these purposes [2][3][4][5]. The use of nanostructure films as sensitive layers of sorption sensors opens new prospects in sensor analysis.…”

Section: Introductionmentioning

confidence: 99%

Technology and characteristics of microhumidity sensors

Krutovertsev

Tarasova

Krutovertseva

et al. 2011

2011 16th International Solid-State Sensors, Actuators and Microsystems Conference

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Operation principle of the microhumidity sensors is based on a relationship between a capacity of doped silica film and an amount of humidity that sorbed by it. Characteristics of the films that were produced by a hydrolytic polycondensation from tetraethylorthosilicate based solutions were studied. Influence of technological factors on formation and sensitivity of the films was determined. High sensitivity enables to use the sensors to measure humidity content for especially pure gases, used in microelectronic technology, active gases at humidity content up to 193 K by dew point and organic solvents.

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Dependence of moisture absorption property on sol–gel process of transparent nano-structured γ-Al2O3 ceramics

Cited by 30 publications

References 17 publications

Hybrid Sol-Gel Coatings: Smart and Green Materials for Corrosion Mitigation

Hybrid Sol-Gel Coatings: Smart and Green Materials for Corrosion Mitigation

In situ One‐pot Electrochemical Synthesis of Aluminum Oxide/polyaniline Nanocomposite; Characterization and Its Adsorption Properties towards Some Heavy Metal Ions

Technology and characteristics of microhumidity sensors

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