CAS 7440-05-3 Pd nanopowder Ultrafine Palladium as catalyst
Size:20-30nm Purity:99.95% CAS No:7440-05-3 ENINEC No.:231-115-6 Appearance:black Powder Shape:spherical
Size:20-30nm Purity:99.95% CAS No:7440-05-3 ENINEC No.:231-115-6 Appearance:black Powder Shape:spherical
We can supply different size products of niobium silicide powder according to client's requirements. Size:1-3um; Purity:99.5%;Shape:granular CAS No:12034-80-9;ENINEC No.:234-812-3
Ni2Si particle,99.5% purity,granular shape,is used for Microelectronic integrated circuit, nickel silicide film,etc. Size:1-10um; CAS No:12059-14-2;ENINEC No.:235-033-1
1. Sprout and Foundation Period (1930s to 1960s) The birth of conductive paste is closely related to the early exploration of miniaturization and integration in the electronics industry. Origin of Technology: Technology originated in the United States in the 1930s. Its inspiration comes from the historical ceramic glazing process, which involves using glass powder as a bonding phase, mixing it with silver powder and organic matter, and forming a conductive film on ceramics through printing and sintering. This is the prototype of thick film paste. Industrialization began: In the 1960s, with the rapid development of the microelectronics industry, the United States ushered in a wave of industrialization of conductive pastes. ESL、 More than 20 companies, including DuPont and IBM, have started developing, manufacturing, and selling various electronic pastes, laying the foundation for the modern electronic paste industry. Definition and standards: During this period, the three core components of conductive paste - the conductive phase that provides conductivity (such as silver and gold powder), the bonding phase that serves as an adhesive (usually glass powder), and the organic carrier that determines processing performance - were established and are still in use today. 2. Development and Transfer Period (1970s-1990s) With the explosion of the consumer electronics market, there has been a significant shift in the technology center and industrial landscape of conductive pastes. Japan's Rise: In the 1980s, Japan quickly caught up in pulp technology with its strong strength in the consumer electronics field, becoming the only pulp producing power that could compete with the United States. Sumitomo Metal Mining, Akira Chemical, Tanaka Precious Metals, and other companies are still giants in the global slurry industry to this day. China started: Compared to the United States and Japan, China entered this field relatively late, starting in the late 1980s, represented by Kunming Precious Metals Research Institute and 4310 Factory. Early products mainly focused on conductor pastes with relatively low technical barriers and wide applications, such as silver paste and aluminum silver paste. Technological upgrade: In the 1990s, in order to meet the demand for higher density and smaller line width of integrated circuits, slurry technology began to develop towards the preparation of nanoscale powders, by reducing the particle size of conductive particles to obtain finer and denser circuits. 3. Diversification and Innovation Period (21st Century to Present) Entering the 21st century, cost and environmental protection have become the core driving forces for technological innovation, and pulp technology has presented a diversified pattern of diverse development. Substitution of base metals: The high cost of precious metals, especially silver, has driven the development of base metal pastes such as copper paste and silver coated copper paste. Especially in the field of...
Read MoreThis year's Canton Fair will start on April 15, 2026 and end on May 5, lasting nearly a month. The exhibition will be held in three phases, each lasting for 5 days. The SAT NANO participation period is from April 15th to 19th. On the first day of the previous event, just after 9 o'clock, you hardly saw many buyers - they wouldn't come so early. But this year, there have been waves of surging buyers rushing by. The return of old buyers and a significant increase in new buyers are the first changes in this year's Canton Fair. Popular exhibition areas such as small appliances, robots, new energy, automotive and motorcycle parts, and agricultural machinery can all be seen with booths filled with buyers engaged in in-depth negotiations. With the increase in the scale and quality of buyers, it will be easier to win orders. Especially in today's unstable global situation, China, which has the most stable supply chain, will definitely be the best choice for buyers. This is enough to explain why our import and export growth rate in the first quarter of this year reached the highest level in nearly five years - exports to ASEAN increased by 17.5%, exports to the EU and the UK increased by 18% and 15.3% respectively. SAT NANO， As a leading enterprise focused on nanotechnology research and application, we are proud to announce our participation in the 139th Canton Fair and showcase the most cutting-edge nanotechnology achievements. This year's Canton Fair will provide us with an excellent opportunity to showcase our innovation, quality, and technological strength to a global audience. In the exhibition hall of SAT NANO, visitors will have the opportunity to personally experience our latest research and development achievements. We will showcase a series of groundbreaking applications of nanomaterials, such as high-strength and highly conductive nano metal powders, nano oxides, carbides, etc. These innovative products will showcase the unlimited potential of nanotechnology in various fields, including healthcare, electronics, environmental protection, etc., and help promote industrial upgrading and innovative development. In addition to product displays, SAT NANO's professional team will also hold a series of themed lectures and exchange activities during the exhibition period to have in-depth exchanges with industry experts, partners, and customers, sharing the development trends and application prospects of nanotechnology. We will showcase our expertise and leading position in the field of nanotechnology, and discuss the future development direction of the industry with people from all walks of life. SAT NANO has always been committed to promoting innovation and development in nanotechnology. We look forward to collaborating with global peers at the 139th Canton Fair to jointly create a better future for nanotechnology! Based on the present and looking to the future, SAT NANO will continue to lead the new trend of nanotechnology and contribute to building a...
Read MoreThe chemical properties of silver are more reactive than gold, and its application history and scope in the fields of medicine and daily health are longer and wider. Various household products made of silver are the earliest antibacterial devices used by people. Archaeological studies have shown that China had already used silver as a drinking utensil as early as the Xia Dynasty, while ancient Greeks used silver bowls to hold drinking water, and ancient Romans used silver containers to preserve wine. These are all achieved by utilizing the natural antibacterial properties of silver. Research has shown that silver and its compounds have strong antibacterial properties, capable of killing various bacteria and breaking down biofilms formed by bacteria, making it difficult for them to reproduce on silver products and silver coatings, thereby reducing the risk of human infection. Modern medical research has shown that silver can exert antibacterial effects through the dual synergistic effect of silver ions and nanosilver. Among them, silver ions can bind to bacterial cell membranes, leading to increased permeability and inducing their death; Binding with active groups such as thiol and amino groups in bacterial metabolic enzymes leads to the loss of enzyme activity and interferes with bacterial energy metabolism; It can also bind to the DNA/RNA of bacteria, prevent gene replication and transcription, disrupt bacterial reproductive ability, and exert antibacterial and bactericidal effects. Nano silver is more likely to penetrate the cell membrane of pathogens and exert a more lasting antibacterial effect at extremely low concentrations. Under the influence of an electric field, silver containing substances can release more silver ions, enhancing local antibacterial efficiency. In addition to its powerful antibacterial function, silver also has the function of promoting tissue cell repair and regeneration, accelerating wound convergence and healing. Therefore, it is commonly used in antibacterial therapy as an external medicine or dressing for preventing and treating injuries and skin infections. In 1884, German obstetrician Karl Krede used silver nitrate solution for neonatal eye disinfection, successfully preventing neonatal gonococcal conjunctivitis, marking the official entry of silver containing drugs into the modern medical application system. Silver is a key core material for controlling wound infections and promoting their healing. In 1968, sulfamethoxazole silver, which combines the dual antibacterial effects of sulfonamide drugs and silver ions, was used for the prevention and treatment of burn wound infections, with significant effects on common pathogenic bacteria such as Pseudomonas aeruginosa. The application of this drug has become a milestone event in burn surgery, saving the lives of a large number of patients. Many silver containing drugs have important application value in local anti infective treatment. Silver nitrate solution can be...
Read MoreOver the past two decades, carbon nanotubes have been considered one of the most promising nanomaterials. From the perspective of material properties, it combines high strength, high conductivity, high thermal conductivity, and extremely low density, and is widely regarded as a key component in future advanced material systems. However, for a considerable period of time, the development speed of the carbon nanotube industry has been significantly slower than market expectations. The high production cost, difficulty in large-scale manufacturing, and lack of stable demand on the application side have resulted in this material remaining between scientific research and small-scale industrial applications for a long time. Now, this situation is changing. With the continuous growth of demand for new energy vehicles, battery technology upgrades, and advanced composite materials, carbon nanotubes have gradually become a key material in multiple industry chains. From lithium battery conductive agents to lightweight composite materials, and then to flexible electronics and transparent conductive films, the application fields of carbon nanotubes are constantly expanding. According to predictions from multiple research institutions, the global carbon nanotube market is expected to maintain double-digit growth over the next decade, with the market size continuing to expand and the industry entering a true stage of scale. Quick overview of conductivity data of carbon nanotube powder Carbon nanotube type Conductivity/resistivity Multi walled carbon nanotubes (outer diameter 10-30 nm) Conductivity>100 S/cm Multi walled carbon nanotubes (outer diameter 5-15 nm) Conductivity 8-10 S/cm Single walled carbon nanotubes (low purity) Conductivity 100 S/cm Carbon nanotube conductive filler (composite with carbon black) Volume resistivity<0.01 Ω· cm (converted to conductivity>100 S/cm) 1. Industrialization turning point: rapid expansion of carbon nanotube production capacity Carbon nanotubes can be divided into two types based on their structure: single-walled carbon nanotubes and multi walled carbon nanotubes. Single walled carbon nanotubes are formed by curling a single layer of graphene, which has superior electrical properties, but is more difficult and costly to produce; Multi walled carbon nanotubes are composed of multi-layer coaxial tube structures. Although their performance is slightly lower, they are easier to achieve large-scale production, and therefore currently have a larger market application scale. In the early stages, the production of carbon nanotubes mainly relied on arc discharge method and laser evaporation method. Although these technologies could obtain high-quality materials, the production was limited and the cost was high. With the gradual maturity of chemical vapor deposition (CVD) technology, the production efficiency of carbon nanotubes has been greatly improved, laying the foundation for industrialization. In recent years, global ca...
Read MoreDear all SAT NANO employees: On the occasion of the 2026 year Spring Festival, the company would like to extend its greetings and best wishes to you! Thank you for your efforts and contributions to the company over the past year. In order to reunite with family and celebrate the holiday together, according to the national statutory holiday arrangements and the actual situation of the company, the 2026 Spring Festival holiday arrangements are hereby notified as follows: Holiday period: The company has decided to take a 16 day break from the 11th to the 27th of February. Pre holiday preparation: Please make good pre holiday work arrangements for all departments to ensure the successful completion of year-end work goals and ensure the normal operation of the company. Post holiday arrangements: During the Spring Festival, if there is an emergency situation that needs to be handled, please contact and coordinate with the relevant department heads in a timely manner. Our contact email is admin@satnano.com Wishing all employees a happy Chinese New Year, family reunion, smooth career, good health, peace and happiness. Finally, thank you again for your hard work and support over the past year. We hope to work together and create brilliance in the new year! Wishing everyone a happy New Year! Respected by the Human Resources Department of SAT NANO Company
Read MoreAgainst the backdrop of accelerated transformation of the global energy structure and synchronous growth in demand for advanced materials, how to achieve large-scale preparation of high value-added materials while reducing carbon emissions is becoming a core issue in the fields of materials science and energy engineering. Recently, a research team from the University of Cambridge published a study in the journal Nature Energy, providing a new technological path for this problem: by systematically reconstructing the methane pyrolysis and floating catalyst chemical vapor deposition (FCCVD) process, carbon nanotubes and clean hydrogen gas were produced synchronously without producing carbon dioxide by-products throughout the entire process. The key to this achievement lies in the deep transformation of the process logic of the existing methane pyrolysis system. Methane, as the main component of natural gas and biogas, has long been regarded as an important raw material for hydrogen production and carbon materials. However, the mainstream steam methane reforming process inevitably produces carbon monoxide and carbon dioxide, making it controversial in the "low-carbon hydrogen production" path. In contrast, methane pyrolysis reaction can theoretically directly decompose methane into solid carbon and hydrogen gas, avoiding oxygen participation in the reaction and eliminating the risk of carbon dioxide emissions from the root. In previous research and industrial practice, methane pyrolysis has been regarded more as one of the preparation routes for carbon nanotubes, and its byproduct hydrogen gas is usually ignored or only exists as an incidental product. The Cambridge University team has noticed that if the hydrogen yield can be significantly improved without sacrificing the quality of carbon nanotubes, methane pyrolysis is expected to be upgraded from a "material process" to a "material energy coupling process". This approach directly points to the long-standing efficiency bottleneck in the FCCVD system. The traditional FCCVD process uses methane as the carbon source and utilizes gas-phase catalysts to generate high-quality, high aspect ratio carbon nanotubes under high temperature conditions, which has significant advantages in fields such as battery conductive agents and high-end composite materials. But this process highly relies on external hydrogen input to dilute methane and prevent smoke and dust generation. This design imposes dual constraints on FCCVD during the amplification process: on the one hand, it requires a large amount of pre hydrogen production capacity, and on the other hand, the reaction gas usually adopts a one-way flow mode, with a large amount of unreacted methane discharged with the exhaust gas, resulting in low overall atomic utilization efficiency. The breakthrough of the Cambridge team is precisely based on this "one-way high loss" model. They proposed and validated a multi-stage circulating gas flow scheme, which allows me...
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