Novel package for inhibition of aluminium corrosion in alkaline solutions

Abdel‐Gaber, A. M.; Khamis, E.; Aboeldahab, Heba; Adeel, Shahid

doi:10.1016/j.matchemphys.2010.07.059

Cited by 91 publications

(41 citation statements)

References 25 publications

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“…Lupine seed extract was found to inhibit the open-circuit corrosion of a 99.6% Al alloy in 2 mol dm À3 NaOH by 62%, due to adsorption of its active ingredient onto the alloy surface and reducing the active area [109]. However, it also impeded the anodic discharge of the aluminium.…”

Section: Plant Extractsmentioning

confidence: 99%

“…Cationic surfactants could inhibit this reaction by blocking the cathodic sites on the aluminium [108]. One such cationic surfactant, cetyltrimethylammonium bromide (CTAB) weakly inhibited the corrosion of 99.6% aluminium in 2 mol dm À3 NaOH, with only 14% inhibition efficiency at opencircuit, see Table 4 [109]. In addition, the CTAB restricted the anodic oxidation of the aluminium by adsorbing at the aluminium/ alkaline solution interface reducing the active area [109].…”

Section: Cationic Surfactantsmentioning

confidence: 99%

“…Plant extracts are being considered as a corrosion inhibitor for aluminium in alkaline solutions as a replacement of toxic chemicals widely used in industry and to reduce the operating cost [109]. Lupine seed extract was found to inhibit the open-circuit corrosion of a 99.6% Al alloy in 2 mol dm À3 NaOH by 62%, due to adsorption of its active ingredient onto the alloy surface and reducing the active area [109].…”

Section: Plant Extractsmentioning

confidence: 99%

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Developments in electrode materials and electrolytes for aluminium–air batteries

Egan¹,

León²,

Wood³

et al. 2013

Journal of Power Sources

394

191

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h i g h l i g h t s< Discussion of the rationale to choose a suitable alloy for Aleair battery. < Effect of the properties and preparation route to enhance the oxidation of Al. < Effect of the inhibitors on the anode oxidation in the alkaline electrolyte. This review shows the influence of the materials, including: aluminium alloy, oxygen reduction catalyst and electrolyte type, in the battery performance. Two issues are considered: (a) the parasitic corrosion of aluminium at open-circuit potential and under discharge, due to the reduction of water on the anode and (b) the formation of a passive hydroxide layer on aluminium, which inhibits dissolution and shifts its potential to positive values. To overcome these two issues, super-pure (99.999 wt%) aluminium alloyed with traces of Mg, Sn, In and Ga are used to inhibit corrosion or to break down the passive hydroxide layer. Since high-purity aluminium alloys are expensive, an alternative approach is to add inhibitors or additives directly into the electrolyte. The effectiveness of binary and ternary alloys and the addition of different electrolyte additives are evaluated. Novel methods to overcome the self-corrosion problem include using anionic membranes and gel electrolytes or alternative solvents, such as alcohols or ionic liquids, to replace aqueous solutions. The air cathode is also considered and future opportunities and directions for the development of aluminiumeair cells are highlighted.

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Section: Plant Extractsmentioning

confidence: 99%

Section: Cationic Surfactantsmentioning

confidence: 99%

Section: Plant Extractsmentioning

confidence: 99%

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Developments in electrode materials and electrolytes for aluminium–air batteries

Egan¹,

León²,

Wood³

et al. 2013

Journal of Power Sources

394

191

View full text Add to dashboard Cite

show abstract

“…A c c e p t e d M a n u s c r i p t 39 Abdel-Gaber et al [110] evaluated the effects of the cationic surfactant cetyltrimethylammonium bromide (CTAB) and lupine seed extract as Al surface corrosion inhibitors in 2 M NaOH solution using an electrochemical technique, and the result revealed that the lupine seed extract controlled both the Al anodic dissolution and the hydrogen gas evolution on the cathodic side.…”

Section: Page 40 Of 70mentioning

confidence: 99%

Recent developments in materials for aluminum–air batteries: A review

Mokhtar

Talib

Majlan

et al. 2015

Journal of Industrial and Engineering Chemistry

243

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“…The reaction produces hydroxyl ions which migrate to the anode through the electrolyte to form zincate and a potential of 0.4 V (Equation 1). Another of the main problems for the air-cathode is related to the accumulation of the water produced during the reaction, which accelerates the degradation of the electrolyte and induces flooding at the gas diffusion cathode; also, another reaction between water and zinc occurs, resulting in hydrogen gas generation that causes severe corrosion of the metal anode (Equation 5) [11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Double-layer membrane cathode with improved oxygen diffusivity in zinc-air batteries

Ugalde

Naguib

2017

Energy Storage Materials

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. "Double-layer membrane cathode with improved oxygen diffusivity in zinc-air batteries." Energy Storage Materials 8 (2017): 1-9. Doi: 10.1016/j.ensm.2017.03.009 Copyright/LicenseThis work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/4.0/. How to cite TSpace itemsAlways cite the published version, so the author(s) will receive recognition through services that track citation counts, e.g. Scopus. If you need to cite the page number of the author manuscript from TSpace because you cannot access the published version, then cite the TSpace version in addition to the published version using the permanent URI (handle) found on the record page.This article was made openly accessible by U of T Faculty. Please tell us how this access benefits you. Your story matters. Double-Layer Membrane Cathode with Improved Oxygen Diffusivity in Zinc-Air Batteries AbstractThe commercialization of portable zinc-air batteries has been limited to the coin cell shape, mainly due to issues related to the cathode morphology. These types of batteries commonly use an aqueous electrolyte, which is susceptible to changes in air temperature and humidity that can cause leakage and block the air-cathode. This problem entails the use of bulky systems that require an empty gap between the porous cathode and the electrolyte to avoid flooding. This paper presents a novel fabrication method and morphology for a conductive and flexible doublemembrane nanocomposite air-cathode. The pore morphology for each membrane was designed for two purposes using two different foaming techniques. The foaming technique includes supercritical CO 2 in a high-pressure chamber to create a hydrophobic closed-cell structure. On the other hand, NaCl was used as a temporary space-holder to create a hydrophilic open-cell morphology. The closed-cell membrane presented an optimal performance as a hydrophobic oxygen diffusion layer whereas the hydrophilic open-cell membrane, apart from increasing the catalytic surface area, also increased the water absorption by 12 times with a swelling capacity of 68%. The electrochemical tests exhibited stable performance without presenting leaking even when bent under a relative humidity of 85-90 %. The specific energy density achieved was as high as 198 W h kg -1 , which is similar to that of some of the available commercial alkaline cells.Furthermore, the double-membrane air-cathode also has the advantages of low cost, high recyclability and the possibility of multiple configurations including flexibility for both primary and secondary configurations.

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Novel package for inhibition of aluminium corrosion in alkaline solutions

Cited by 91 publications

References 25 publications

Developments in electrode materials and electrolytes for aluminium–air batteries

Developments in electrode materials and electrolytes for aluminium–air batteries

Recent developments in materials for aluminum–air batteries: A review

Double-layer membrane cathode with improved oxygen diffusivity in zinc-air batteries

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