New ORNL Catalyst Features Unsurpassed Selectivity
November 3, 2015 | ORNLEstimated reading time: 1 minute
Catalysts that power chemical reactions to produce the nylon used in clothing, cookware, machinery and electronics could get a lift with a new formulation that saves time, energy and natural resources.
The catalyst developed by researchers at the Department of Energy’s Oak Ridge National Laboratory and highlighted in a paper published in Nature Communications features unprecedented selectivity and a conversion rate nearly twice that of conventional catalysts. Selectivity refers to the ability to target a specific chemical bond. It is also significant that the catalyst can break the carbon-hydrogen bonds in hydrocarbons such as cyclohexane, the precursor of nylon, without using noble metals. This has been considered a bottle-neck step in the production of nylon.
“The greater the selectivity, the more products that can be derived,” said ORNL chemist and lead author Sheng Dai of the Chemical Sciences Division. “The catalyst is the main ingredient to speed up desired chemical reactions, and we have created one for synthesizing the nylon precursor that is especially effective at activating the carbon-hydrogen bonds.”
ORNL’s successful approach lies in the formation of an ultrahigh concentration of active sites – for breaking the carbon-hydrogen bonds – from a 50-50 atomistic mixture of manganese oxide and cerium oxide. This creates a catalyst that is extremely porous and features a high surface area, making it efficient at breaking these bonds. The high efficiency, or conversion rate, of the ORNL catalyst means more nylon can be produced from cyclohexane in less time.
Dai emphasized that this success was a team effort as he enlisted the help of ORNL postdoctoral research associate Pengfei Zhang, visiting scholar Hanfeng Lu of Zhejiang University and others to test his concept.
“Our catalyst has created a sustainable way to prepare complex mesoporous metal oxides and demonstrates outstanding performance in the selective oxidation of various hydrocarbons by oxidation,” Zhang said.
Suggested Items
Lockheed Martin Australia, The Department Of Defence Sign Strategic Partnership Head Contract
04/26/2024 | Lockheed MartinLockheed Martin Australia signed a landmark AUD$500 million contract with the Department of Defence to build Australia’s future Joint Air Battle Management System under project - AIR6500 Phase 1 (AIR6500-1).
Real Time with… IPC APEX EXPO 2024: Tools, Training, and Trends in Manufacturing Engineering
04/25/2024 | Real Time with...IPC APEX EXPOGuest Editor Kelly Dack and Product Specialist Erik Bateham of Polar Instruments discuss Polar's latest technology, including their role in aiding manufacturing engineers. They highlight the advanced capabilities of Polar's tools and the critical role of signal integrity analysis, as well as the importance of accurate modeling in board manufacturing. Polar's unique training approach and demonstration contact details are also explored.
Saab Launches New Initiative to Shape the Future of Defense and Security
04/24/2024 | SaabSaab announces the launch of Skapa by Saab, a new initiative to accelerate the development and deployment of cutting-edge technologies and solutions.
LG Display to Mass Produce World's First Gaming OLED Panel With Switchable Refresh Rate and Resolution
04/24/2024 | PRNewswireLG Display, the world's leading innovator of display technologies, announced that it has developed the first-ever Gaming OLED panel with a switchable refresh rate and resolution. The company has begun mass production of the 31.5-inch panel this month, accelerating its push into the high-end gaming display market with new concept products.
Real Time with... IPC APEX EXPO 2024: Final Finishes and IC Substrate Manufacturing
04/24/2024 | Real Time with...IPC APEX EXPOEditor Marcy LaRont and Richard DePoto, Uyemura's Business Development Manager, engage in a comprehensive discussion about the positive aspects of the show, the benefits of RAIG in final finishes, and the hurdles faced when upgrading your surface finish. Also discussed are the role of Uyemura's MEC pretreatment agents in IC substrate manufacturing and the importance of collaboration and knowledge sharing.