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Researchers at the University of Southampton in the UK converted optical fibers into photocatalytic microreactors and used solar energy to convert water into hydrogen fuel.
This groundbreaking technology encloses a photocatalyst inside microstructured fiber rods (MOFCs). This catalyst and sunlight work together to produce hydrogen, which can provide power for a wide range of sustainable applications.
Southampton chemists, physicists and engineers have published their proof of concept in ACS Photonics and will conduct more extensive research to prove the platform ’s scalability Sex.
MOFCs have been developed into high-pressure microfluidic reactors, each with multiple capillaries, which can transfer chemical reactions.
In addition to generating hydrogen from water, this multidisciplinary research team is also studying the conversion of carbon dioxide into synthetic fuel by photochemistry. This unique approach provides a viable solution for renewable energy, elimination of greenhouse gases and sustainable chemical production.
Chemistry researcher and lead author Dr. Matthew Porter said: "There is great potential for combining photoactivated chemical processes with the excellent light propagation properties of optical fibers."
"In this work, our unique photoreactor has significantly improved activity compared to existing systems. This is an ideal example of chemical engineering under green technology in the 21st century."
In recent years, fiber optic technology has played an important role in telecommunications, data storage, and network potential.
This latest study invites experts from the Southampton Optoelectronics Research Center (ORC), which is affiliated with the Zepler Institute of Photonics and Nanoelectronics, to study the unprecedented control of optical fiber propagation.
The scientists coated the surface of the fiber with titanium oxide and then decorated it with palladium nanoparticles. This method allows the coating layer to act as both a host and a catalyst, using methanol as a sacrificial reagent, for continuous indirect water splitting.
Dr. Pierre Sazio of the Zepler Institute is a co-author of this study. He said: "Optical fiber constitutes the physical layer of an astonishing 4 billion kilometers long global telecommunications network. It is currently divided at a speed of more than Mach 20. Forks and expansions, which is more than 14,000 feet per second. "
"In this project, we used ORC's facilities to reuse this extraordinary manufacturing capability, using pure silica glass to create a micro-reactor with ideal optical transparency for solar photocatalysis."
(Original source: Global Energy China New Energy Network Comprehensive)
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Duplex Stainless Steel Overview
Duplex Stainless Steels, also referred to as austenitic-ferritic stainless steels, are a family of grades with about equal proportions of ferrite and austenite. These steels have a duplex microstructure which contributes to their high strength and high resistance to stress corrosion cracking. Due to their high content of chromium, nitrogen and molybdenum, duplex steels offer good resistance to local and uniform corrosion. Duplex stainless steels have good weldability.
Today, modern duplex stainless steels can be divided into three groups:
Lean Duplex such as LDX2101
Standard Duplex such as 2205, the work-horse grade accounting for more than 80% of duplex usage
Super Duplex such as Ferralium 255 and Zeron 100 and LDX2507
Of the duplex grades, duplex 2205 is the most widely used. However, the super duplex steels like Zeron® 100 and LDX2507 are excellent for servicing severe corrosive environments, such as offshore and marine applications. Lean duplex 2101 is available as an economic alternative to 300 series stainless steels.
What are the Characteristics of Duplex Stainless Steels ?
Very good resistance to uniform corrosion
Very good resistance to pitting and crevice corrosion
High resistance to stress corrosion cracking and corrosion fatigue
High mechanical strength
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Low thermal expansion
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In what Applications are Duplex Stainless Steels® used ?
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