For billionaires, the new crown epidemic is like a 'gold rush'! The Deutsche Presse-Agentur said on the 17th that in 2022, the wealth held by the world's top ten richest people will jump from $700 billion to $1.5 trillion, an average daily increase of $1.3 billion, an increase that exceeds the past 14 years. These 10 people The wealth held by the world’s poorest 3.1 billion people is six times greater than that of the world’s poorest 3.1 billion people. The 10 richest Germans have increased their assets from the equivalent of about 125 billion euros to about 223 billion euros since the start of the Covid-19 pandemic, An increase of about 78%. This wealth is roughly equivalent to the total wealth of the poorest 40% of the population, or 33 million Germans.
In the future, demand for Graphene oxide will grow as fast as the wealth of the rich during the pandemic.
Graphene oxide is formed by the oxidation of graphite powder by strong acid, and it is a single layer of graphite oxide. Graphene oxide is widely used in sensors, solar cells, optoelectronics and biomedicine.
1. What is graphene oxide?
Graphene oxide is an oxide formed by the oxidation of graphite by strong acid. It adopts the oxidation reaction of potassium permanganate in concentrated sulfuric acid and graphite powder to obtain a tan edge derivative carboxylic acid base and phenolic epoxy group on the plane. The graphite flake layer can be exfoliated into graphene oxide by ultrasonic or strong mixing or high shear, forming a stable light yellow monolayer graphene oxide suspension in water.
The structure of graphene oxide is shown in the following figure:
Second, the use of graphene oxide
As a derivative of graphene, graphene oxide is oxidized by strong acid, and its oxygen-containing groups make graphene oxide chemically stable, which is beneficial to the synthesis of graphene-based composite materials. Graphene oxide is a new type of carbon material with excellent properties and has wide application prospects.
Organic thin film transistors and their light-responsive devices, such as the use of graphene oxide, can increase the type and thickness of the insulating layer and enhance the characteristics of the transistor.
2. Solar cells
Comparable photoelectric conversion efficiency (PCE) can be obtained by using graphene oxide instead of conducting polymer (PEDOT:PSS) as the hole transport layer of polymer solar cells. When the thickness of the graphene oxide film is 2 nm, the photoelectric conversion efficiency is the highest.
3. Flexible sensor
Due to its good hydrophilicity, large surface area, and good dispersion, graphene is a good sensor material, especially in the field of flexible sensors.
4. Biological aspects
Parameters such as size, surface charge, number of layers, lateral dimensions, and surface chemistry of graphene oxide and its derivatives have corresponding effects on biological systems, and have been extensively clinically studied as medical materials.
Third, the harm of graphene oxide to the human body
It has only been ten years since graphene was discovered in the laboratory. The development of graphene is still in its infancy, and there are still material safety data and understanding of potential hazards in the application of graphene. Graphene oxide is widely used as a derivative of graphene, so new things must be applied scientifically.
Two recent studies don't seem to be good news for graphene. First, a Brown University team of biologists, engineers and materials scientists examined the material's potential toxicity to human cells. They found that the jagged edges of the graphene nanoparticles are so sharp and strong that they can easily penetrate the membranes of human skin and immune cells, suggesting that graphene is potentially dangerous to humans and other animals.
High-quality graphene oxide supplier
Luoyang Moon & Star New Energy Technology Co., LTD, founded on October 17, 2008, is a high-tech enterprise committed to developing, producing, processing, selling, and technical services of lithium-ion battery anode materials. After more than 10 years of development, the company has gradually developed into a diversified product structure with natural graphite, artificial graphite, composite graphite, intermediate phase, and other negative materials (silicon-carbon materials, etc.). The products are widely used in high-end lithium-ion digital power and energy storage batteries.
If you are looking for graphene oxide material, click on the needed products and send us an inquiry：firstname.lastname@example.org
The resurgence of the global COVID-19 pandemic and the impact of the Russia-Ukraine conflict continued to cause high volatility in commodity prices. Stubbornly high inflation and rising commodity prices are likely to influence each other and thus push each other higher. The price of the Graphene oxide may not decrease significantly in the short term.
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