A review on the application of inorganic nanoparticles in chemical surface coatings on metallic substrates

Jiang, Congcong; Cao, Yan-ke; Xiao, Gui‐yong; Zhu, Rong; Lu, Yu‐peng

doi:10.1039/c6ra25841g

Cited by 61 publications

(29 citation statements)

References 101 publications

(132 reference statements)

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“…The ability to be dispersed into discrete entities, each characterized by a size, shape, surface charge and porosity discriminate nanoparticles from the wider class of nanomaterials encompassing nanostructured objects that might present dimensions in the micro and millimeter regime, such as nanostructured films or nanotubes . Size and shape affect the nanoparticle functionalization capacity, fluid drag and diffusion, optical properties, and uptake into cells .…”

Section: Nanoparticle Parametersmentioning

confidence: 99%

Nanoparticle Characterization: What to Measure?

et al. 2019

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What to measure? is a key question in nanoscience, and it is not straightforward to address as different physicochemical properties define a nanoparticle sample. Most prominent among these properties are size, shape, surface charge, and porosity. Today researchers have an unprecedented variety of measurement techniques at their disposal to assign precise numerical values to those parameters. However, methods based on different physical principles probe different aspects, not only of the particles themselves, but also of their preparation history and their environment at the time of measurement. Understanding these connections can be of great value for interpreting characterization results and ultimately controlling the nanoparticle structure–function relationship. Here, the current techniques that enable the precise measurement of these fundamental nanoparticle properties are presented and their practical advantages and disadvantages are discussed. Some recommendations of how the physicochemical parameters of nanoparticles should be investigated and how to fully characterize these properties in different environments according to the intended nanoparticle use are proposed. The intention is to improve comparability of nanoparticle properties and performance to ensure the successful transfer of scientific knowledge to industrial real‐world applications.

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Section: Nanoparticle Parametersmentioning

confidence: 99%

Nanoparticle Characterization: What to Measure?

et al. 2019

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“…According to their report [382] addition of H 2 O 2 as an accelerator served as a source of O 2 and simultaneously generated alkaline conditions that enhanced coating formation. Jiang et al [383] had reviewed the incorporation of nanoparticles in coating systems for different metals and alloys, from which it can be easily inferred that the average sizes of most of the nanoparticles employed (mostly in the range of 15−300 nm) are not suitable for incorporation in typical anodized aluminum oxide layers with typical pore diameters in the range of 20 to 100 nm. One pot anodization and sealing strategy in which anodization and sealing with incorporation of corrosion inhibiting species is a strategy that can translate into much energy savings and thus demands investigation.…”

Section: One Pot Anodization and Sealingmentioning

confidence: 99%

The Sealing Step in Aluminum Anodizing: A Focus on Sustainable Strategies for Enhancing Both Energy Efficiency and Corrosion Resistance

2020

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Increasing demands for environmental accountability and energy efficiency in industrial practice necessitates significant modification(s) of existing technologies and development of new ones to meet the stringent sustainability demands of the future. Generally, development of required new technologies and appropriate modifications of existing ones need to be premised on in-depth appreciation of existing technologies, their limitations, and desired ideal products or processes. In the light of these, published literature mostly in the past 30 years on the sealing process; the second highest energy consuming step in aluminum anodization and a step with significant environmental impacts has been critical reviewed in this systematic review. Emphasis have been placed on the need to reduce both the energy input in the anodization process and environmental implications. The implications of the nano-porous structure of the anodic oxide on mass transport and chemical reactivity of relevant species during the sealing process is highlighted with a focus on exploiting these peculiarities, in improving the quality of sealed products. In addition, perspective is provided on plausible approaches and important factors to be considered in developing sealing procedures that can minimize the energy input and environmental impact of the sealing step, and ensure a more sustainable aluminum anodization process/industry.Coatings 2020, 10, 226 2 of 55 sealing methods. Furthermore, the applicability of another hitherto popular sealing process; chromate sealing, is currently limited to essential parts in the aerospace industry due to toxicological, health, and environmental implications traced to Cr(VI) employed in the process [7][8][9][10][11][12][13][14][15][16]. On the other hand, the advantages of another industrially utilized sealing process; the nickel fluoride (cold) sealing process is limited by the toxicity of nickel salts which narrows its range of application, and introduces added costs due to post-sealing wastewater treatments and management [17][18][19][20]. Further efforts at sealing anodized aluminum at temperatures lower than that used in hydrothermal (high temperature) sealing, have led to much variety in the chemical constitution and operating temperatures of sealing baths [21]. On the basis of temperature at which the sealing step is carried out, sealing can be classified into three major categories; high temperature, mid-temperature, and room-temperature or cold sealing. In this work sealing at temperatures from 0 to 40 • C is classified as low temperature sealing, from ≥ 40 • C to 70 • C as intermediate or mid temperature sealing, and sealing at temperatures > 70 • C as high temperature sealing.

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“…Inorganic NPs can increase the spacing between the layers of GR and reduce the force between the layers to retain the structure and properties of the monolayer GR. This synergistic effect is important for the applications [120,121]. Liu and coworkers examined the influence of two inorganic NPs, namely, SiO 2 and Al 2 O 3 , on the adsorption of 17 β-estradiol onto GR oxide using batch adsorption experiments [122].…”

Section: Carbon-based Nanomaterialsmentioning

confidence: 99%

Carbon-Based Nanomaterials in Sensors for Food Safety

et al. 2019

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Food safety is one of the most important and widespread research topics worldwide. The development of relevant analytical methods or devices for detection of unsafe factors in foods is necessary to ensure food safety and an important aspect of the studies of food safety. In recent years, developing high-performance sensors used for food safety analysis has made remarkable progress. The combination of carbon-based nanomaterials with excellent properties is a specific type of sensor for enhancing the signal conversion and thus improving detection accuracy and sensitivity, thus reaching unprecedented levels and having good application potential. This review describes the roles and contributions of typical carbon-based nanomaterials, such as mesoporous carbon, single-or multi-walled carbon nanotubes, graphene and carbon quantum dots, in the construction and performance improvement of various chemo-and biosensors for various signals. Additionally, this review focuses on the progress of applications of this type of sensor in food safety inspection, especially for the analysis and detection of all types of toxic and harmful substances in foods.

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A review on the application of inorganic nanoparticles in chemical surface coatings on metallic substrates

Abstract: Nanocomposite coatings obtained by the controlled addition of inorganic nanoparticles into the treatment baths not only improve the corrosion resistance and mechanical properties, but also enhance the functional properties.

Cited by 61 publications

References 101 publications

Nanoparticle Characterization: What to Measure?

Nanoparticle Characterization: What to Measure?

The Sealing Step in Aluminum Anodizing: A Focus on Sustainable Strategies for Enhancing Both Energy Efficiency and Corrosion Resistance

Carbon-Based Nanomaterials in Sensors for Food Safety

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