SKU: 14247603629

WS2 powder 5.0um

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Description

WS2 powder 5.0umProduct Name Name: WS2 powder 5. 0um Product Overview Tungsten disulfide (WS2) is a type of transition metal sulfide (TMDC) with a graphene like layered structure, where the layers are stacked together by weak van der Waals forces. Single layer WS2 is composed of three layers of atoms, with the atomic planes of W and S arranged in a hexagonal array. The W atoms are sandwiched between the two layers of S atoms, forming an S W S atomic layer structure

Product Name

Name: WS2 powder 5.0um

Product Overview

Tungsten disulfide (WS2) is a type of transition metal sulfide (TMDC) with a graphene like layered structure, where the layers are stacked together by weak van der Waals forces. Single layer WS2 is composed of three layers of atoms, with the atomic planes of W and S arranged in a hexagonal array. The W atoms are sandwiched between the two layers of S atoms, forming an S-W-S atomic layer structure with a "sandwich" structure. Multi layer or block WS2 is composed of single layers stacked together. Depending on the stacking method of the single layers, WS2 has three crystal structures: 1T, 2H, and 3R.

The synthesis methods of WS2 are mainly divided into two categories: "top-down" stripping method and "bottom-up" method. The "top-down" exfoliation method includes micro mechanical exfoliation, liquid-phase exfoliation, and lithium-ion intercalation, mainly using physical means to exfoliate the bulk WS2 into a single-layer or few layer layered structure. The "bottom-up" method includes chemical vapor deposition, hydrothermal method, and high-temperature thermal decomposition method, mainly using chemical means to grow atoms and molecules into nanoscale thin films and granular WS2 under certain environmental conditions.

Technical Parameter

WS2: ¡ãC9.9%

W: ¡ãC3.0%

Particle Size: 5.0μm

acid-base property: Neutral

Appearance: Powder

Color: Ash black

 

Product Features

Layered structure: composed of a layered structure similar to graphite, with weak bonding between layers.

Good lubrication performance: With a low coefficient of friction, it performs well in the lubrication field and can effectively reduce wear between mechanical components.

Excellent electrical performance: It is a semiconductor material with certain conductivity and potential applications in electronic devices.

Good stability: It is not prone to chemical reactions with other substances in the environment and can maintain its structure and properties at high temperatures.


Application Fields

Lubricant: WS¡ãCis a solid lubricant widely used in equipment for high temperature, high pressure, high speed, high load, and transportation in chemically active media.

Petroleum catalyst: WS¡ãCcan be effectively used as a catalyst for hydrogenation, desulfurization, polymerization, reforming, hydration, dehydration, and hydroxylation processes due to its excellent cracking performance, high catalytic activity, and long service life.

Energy storage electrode material: WS¡ãCis a layered material with good thermochemical stability, lithium storage performance, and fast electron transfer rate, which can effectively improve the energy density and structural stability of electrode materials.

Additives for high-performance lubricants: Adding an appropriate amount of WS¡ãCnanoparticles to the lubricant can greatly improve its lubrication performance, reduce friction coefficient, and increase oil film strength.

Related Information

Please e-mail for the detailed characterization data.

E-mail:[email protected]

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SKU: 14247603629

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Kathryn Reynolds
Birmingham, US
★★★★★ 5
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Format: Hardcover
Grandson loves books
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Reviewed in the United States on May 15, 2026
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Lindsay L Huntington
Waukegan, US
★★★★★ 5
A book every teacher/parent should read!
Format: Hardcover
I LOVE this book because the "bad seed" reminds me of my son. I don't believe there are any "bad kids" in the world but I'm sure kids look at themselves as bad if that is all they ever hear. I love how this story gives a sympathetic backstory on how he got "so bad" and how he is trying to do better and change his bad ways. Even though my son isn't perfect, he sure does try to do good and his behavior improves when people notice the POSITIVE instead of the negative. I absolutely love the last lines of the book where the other seeds are gossiping (another lesson) saying, "Hey! There goes that bad seed," and another seed sticks up for him and says, "Actually, he isn't that bad anymore." Then the "bad seed" turns around with a smile on his face and says, "I heard that." Moral of the story.....children are always listening. Focus on the positive rather than the negative and a child's self-talk and behavior will drastically improve. My son's 2nd grade year was so negative and he was always getting into trouble. I rarely heard the good and neither did my son. His 3rd grade year was amazing. The teacher really focuses on pointing out his good choices and what a difference that made in my son's attitude toward school. Thank you Jory John for writing this book. I also love the book, "I Love You Already" which teaches readers about friendship, love, patience, loyalty and forgiveness. :)
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Reviewed in the United States on October 2, 2018
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Patty Rosebourgh
Boise, US
★★★★★ 5
Kids learn to keep going
Format: Hardcover
Used for read aloud
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Reviewed in the United States on February 18, 2026
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Jamie
Alexandria, US
★★★★★ 5
The Bad Seed is not so bad after all!
Format: Hardcover
Great little book!
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Reviewed in the United States on December 21, 2025
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Chelsea
Phoenix, US
★★★★★ 4
Love this book and will purchase again
Format: Hardcover
My son lovesss this book. Well i should say loved because our home flooded here in Asheville due to Helene. Plan to purchase it again when we have a home. He is 9months now but started reading it to him when he was 5month old. Definitely a fav
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Reviewed in the United States on October 3, 2024

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