Articles with "sodium hydroxide" as a keyword



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Elucidating the process of hydrogen generation from the reaction of sodium hydroxide solution and ferrosilicon

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Published in 2017 at "International Journal of Energy Research"

DOI: 10.1002/er.3742

Abstract: For the first time, the process of hydrogen evolution from ferrosilicon 75 using sodium hydroxide solution has been investigated as a function of temperature using a combination of X-ray photoelectron spectroscopy, X-ray diffraction and physical… read more here.

Keywords: hydrogen; reaction; silicon; hydroxide solution ... See more keywords
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Tribological behaviors of DLC films in sulfuric acid and sodium hydroxide solutions

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Published in 2020 at "Surface and Interface Analysis"

DOI: 10.1002/sia.6747

Abstract: Tribological behaviors of three typical kinds of diamond‐like carbon (DLC) films (a‐C, a‐C:Cr, and a‐C:H) in sulfuric acid and sodium hydroxide solutions were investigated. The a‐C film showed the lowest stable coefficients of friction (COF)… read more here.

Keywords: hydroxide solutions; sodium hydroxide; sulfuric acid; acid sodium ... See more keywords
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Surface characterization and biodegradability of sodium hydroxide-treated Moso bamboo substrates

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Published in 2020 at "European Journal of Wood and Wood Products"

DOI: 10.1007/s00107-020-01613-x

Abstract: Alkali solution immersion is widely used as a pretreatment process during bamboo and wood product manufacturing. In this study, a surface analysis on bamboo chips pre-treated with sodium hydroxide (NaOH) at room temperature was performed.… read more here.

Keywords: bamboo; surface; treatment; spectroscopy ... See more keywords
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Effect of sodium hydroxide and sodium silicate solutions on strengths of alkali activated high calcium fly ash containing Portland cement

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Published in 2017 at "KSCE Journal of Civil Engineering"

DOI: 10.1007/s12205-016-0327-6

Abstract: In this paper, the mechanical performance of fly ash and Portland cement geopolymer activated with sodium hydroxide and sodium silicate solutions was studied. The Geopolymer Mortars (GM) were made from high calcium Fly Ash (FA)… read more here.

Keywords: portland cement; sodium; sodium silicate; sodium hydroxide ... See more keywords
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Effects of sodium hydroxide treatment on microstructure and mechanical properties of lotus fibers

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Published in 2017 at "Fibers and Polymers"

DOI: 10.1007/s12221-017-1136-3

Abstract: Lotus fibers were prepared from lotus stems through being treated with sodium hydroxide. The lotus fibers were characterized by scanning electron microscopy (SEM), fourier transform infrared spectrometry (FTIR), X-ray diffraction (XRD) and thermal analysis (TG… read more here.

Keywords: lotus fibers; concentration sodium; treatment; sodium hydroxide ... See more keywords
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Enhancing the Performance on Anaerobic Digestion of Vinegar Residue by Sodium Hydroxide Pretreatment

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Published in 2017 at "Waste and Biomass Valorization"

DOI: 10.1007/s12649-016-9666-2

Abstract: Vinegar residue (VR) is a by-product which produced by the process of vinegar production. To enhance the performance on methane production of VR and facilitate its resource utilization, sodium hydroxide (NaOH) pretreatment was carried out.… read more here.

Keywords: production; vinegar residue; pretreatment; anaerobic digestion ... See more keywords
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Comparison of sodium hydroxide and calcium hydroxide pretreatments on the enzymatic hydrolysis and lignin recovery of sugarcane bagasse.

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Published in 2017 at "Bioresource technology"

DOI: 10.1016/j.biortech.2017.08.101

Abstract: Sodium hydroxide (NaOH) and calcium hydroxide (Ca(OH)2) respectively dissolved in water and 70% glycerol were applied to treat sugarcane bagasse (SCB) under the condition of 80°C for 2h. NaOH solutions could remove more lignin and… read more here.

Keywords: calcium hydroxide; sodium hydroxide; enzymatic hydrolysis; hydroxide ... See more keywords
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Effect of sodium hydroxide on the carbonation behavior of β-dicalcium silicate

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Published in 2017 at "Construction and Building Materials"

DOI: 10.1016/j.conbuildmat.2017.04.145

Abstract: Abstract Carbonation of industrial solid wastes containing calcium silicate can reduce CO2 emissions as well as produce useful building materials. However, until a fully understanding of the hardening and solidification mechanism of solid wastes is… read more here.

Keywords: dicalcium silicate; carbonation; sodium; effect sodium ... See more keywords
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A review on microstructural study and compressive strength of geopolymer mortar, paste and concrete

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Published in 2018 at "Construction and Building Materials"

DOI: 10.1016/j.conbuildmat.2018.07.075

Abstract: Abstract The utmost priority in reducing the usage of ordinary Portland cement (OPC) while replicating the cementitious properties by utilizing industrial by-products in construction materials is seriously undertaken by many researchers. The technology of geopolymerization… read more here.

Keywords: strength; concrete review; compressive strength; geopolymer ... See more keywords
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Engineering properties of natural pozzolan/slag based alkali-activated concrete

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Published in 2019 at "Construction and Building Materials"

DOI: 10.1016/j.conbuildmat.2019.02.107

Abstract: Abstract The current study aims to assess engineering properties of alkali-activated concretes made with hybrid aluminosilicate precursors having different proportions of natural pozzolan as a low calcium precursor and blast furnace slag as a high… read more here.

Keywords: alkali activated; slag; sodium hydroxide; natural pozzolan ... See more keywords
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The effect of sodium hydroxide on niobium carbide precipitates in thermally sensitised 20Cr-25Ni-Nb austenitic stainless steel

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Published in 2020 at "Corrosion Science"

DOI: 10.1016/j.corsci.2020.108596

Abstract: Abstract Niobium-stabilised austenitic stainless steel (20Cr-25Ni-Nb) has been immersed in sodium hydroxide, which is used as a corrosion inhibitor. The work shows how NbC precipitates may be degraded by use of pH 13 NaOH. Initial… read more here.

Keywords: niobium; austenitic stainless; stainless steel; corrosion ... See more keywords