SKU: 39543844301

γ-Alumina oxide Nanopowder

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Description

γ-Alumina oxide NanopowderProduct Name Alumina oxide Nanopowder Product Overview High purity aluminium oxide (Al2O3) has several crystalline forms, of which phase and phase are the two main variants. phase aluminium oxide belongs to the cubic crystal system and has a spinel structure. This structure consists of nano sized particles with aluminium atoms irregularly arranged in octahedral and tetrahedral pores surrounded by oxygen atoms. phase alumina is formed at low

Product Name

γ-Alumina oxide Nanopowder

Product Overview

High purity aluminium oxide (Al2O3) has several crystalline forms, of which α-phase and γ-phase are the two main variants. γ-phase aluminium oxide belongs to the cubic crystal system and has a spinel structure. This structure consists of nano-sized particles with aluminium atoms irregularly arranged in octahedral and tetrahedral pores surrounded by oxygen atoms. γ-phase alumina is formed at low temperatures (within the range of 500~700°C), which has a uniform particle size distribution, high purity, a high specific surface, inertness against high temperatures, high activity, and is an active alumina, and is currently used most notably as a carrier for catalysts in the fields of Petrochemical industry, environmental protection and other fields.

Technical Parameter 

 

Purity:9.9 wt%

Particle size:0-15 nm

SSA:20 m2/g   

Product Features

 

Large specific surface area: rich pore space and large specific surface area. 

High surface activity: a large number of hydroxyl groups and unsaturated bonds exist on the surface, with high chemical activity. 

Adjustable pore structure: the pore size and pore volume can be adjusted by controlling the preparation conditions. 

Good adsorption performance: it can effectively adsorb various molecules and ions.

Application Fields

 

Abrasion Resistant Agent and Coating: Used as rubber abrasion resistant agent and coating scratch resistant agent to improve the durability and protective properties of materials.

Catalyst and carrier: Due to its high surface activity and large specific surface area, it is often used as a catalyst or carrier for catalysts, such as hydrogenation and dehydrogenation reactions in petrochemical industry. For example, in automobile exhaust gas purification catalyst, γ-phase alumina can be loaded with precious metals such as platinum and palladium to improve catalytic efficiency. 

Adsorbent: It is used to adsorb impurities and harmful substances in gases and liquids, such as removing heavy metal ions in water treatment. It can effectively adsorb heavy metal ions such as copper and lead in wastewater.

Ceramic material additives: used as additives in ceramic manufacturing to improve the performance of ceramics. It can improve the moulding performance and sintering activity of ceramics. 

Related Information

Please e-mail for the detailed characterization data.

E-mail:[email protected]

 

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SKU: 39543844301

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4.0 ★★★★★
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Verified Purchase
Lindybid
Whiting, US
★★★★★ 5
Awesome edger
This is our second purchase of this product. We had the first one for over ten years and we ended up breaking it(our fault). Immediately bought same one. This is a reliable machine. It goes right through thick weeds and rock hard dirt to edge a lawn or trench. Like I said our previous one lasted ten years and worked just as well in year ten never replaced the blade once. This one came with a back up blade as well which is a bonus. Highly recommend this. Easy to assemble. Takes five minutes. Durable. Powerful. There is hieght adjustment as well. Well worth the price!
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Reviewed in the United States on July 12, 2024
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Verified Purchase
linda k. bennett
New York, US
★★★★★ 5
edger
given as gift but I liked the weight and ease of handling. Seemed well made and simple to use. I was pleased with size and features.
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Reviewed in the United States on January 1, 2026
M
Verified Purchase
Movie Fan
Charlottesville, US
★★★★★ 3
Nice Edger as long as the blade doesn't come loose -- and it will come loose, repeatedly!
Probably could've/should've rated this 2 stars yet it works well when it works. I purchased this edger to edge my drive and sidewalks and not for trenching. The edger arrived very quickly after I ordered it (I am not a Prime member so this was a nice surprise). Assembly was easy and straight-forward. The first use went smoothly and the edger performed flawlessly and provided clean, smooth edging. About 20 minutes into the second use I noticed that the edger was cutting and quickly determined that the blade was spinning freely -- fortunately the hex nut was still attached to the threaded shaft. I reviewed the manual that came with the edger, grabbed the correct sized socket and torque wrench. I removed the hex nut, the first washer, the blade and then the second washer. To install I followed the directions ensuring that the flats of the washer aligned with the flat on the shaft and tightened the hex nut to the specified 140 in-lbs. The edger worked well for about 10 minutes and the blade once again became loose. This time I replaced the original blade (which did not need to be replaced from a wear perspective) with a new B&D blade and new washers. Once again I followed the instructions and this time the edger performed flawlessly until about 5 minutes remaining in my edging when once again the blade came loose. my experience has most certainly been frustrating to say the least. one should not need to carry a socket and torque wrench with them and repeatedly need to tighten the blade. So, when the edger performs as intended it does an excellent job at edging; however I have no confidence that this edger will be able to perform as intended throughout repeated uses and more importantly has shown that it cannot complete my edging without requiring tightening the blade (which requires disassembly down to the second keyed washer). Potential buyers should be prepared for this experience and make your decision accordingly. Note: I tried contacting black and decker via twitter (@blackdeckerhome) and never received a response; I could not find a separate customer service/support twitter account. Trying to contact customer service via the phone these days is an exercise in patience to say the least.
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Reviewed in the United States on November 11, 2022
R
Verified Purchase
Robert S.
Omaha, US
★★★★★ 5
Trimmer results
Was alittle hesitant with this being B&D But I was surprised how great it really is. By far way above my expectations. Works like a charm and does a great job. Chose electric because I really don't have other than a driveway to do. But it really did good around the flower beds. Cord limits you alittle but nothing to cry about. Quiet also but still use ear plugs.
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Reviewed in the United States on May 9, 2026
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Verified Purchase
Charles H. Pretti Jr.
Lexington, US
★★★★★ 5
Light weight and very functional
Incredibly light and functional, this trimmer forks with either string or resin blades. I personally prefer the blades. At the time I bought the unit I couldn’t locate replacement resin blades. I finally called Black and Decker and they sent me two packages of the replacement blades for free! The shield keeps trimming from being a messy horror show. No more back soreness because of the ligh weight of the unit. I’m very pleased with both the product and Black and Decker.
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Reviewed in the United States on July 22, 2025

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