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Near net shape fabrication of anisotropic magnet using hot roll method
Summary:
ISU and Ames Laboratory researchers have developed a method of producing Nd-Fe-B magnets capable of operating at higher temperatures (T>150°C) without the addition of expensive heavy rare earth elements such as Dy. Mechanically milled Nd-Fe-B powder is loaded into a metal vessel which is hot rolled to produce fully dense magnets with...
Published: 7/2/2024
Category(s): Materials, Engineering & Physical Sciences, Energy, Cleantech & Environmental
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Secure message authentication in wireless relay networks
Summary:
Relays are extensively utilized in various wireless networks, such as cellular and WiFi, to extend coverage and enhance network capacity. However, the presence of relays also introduces data integrity challenges. One critical concern is the threat of data integrity attacks, where a relay maliciously modifies packets during transit. This type...
Published: 7/2/2024
Category(s): Agriculture, Healthcare, Energy, Cleantech & Environmental, Engineering & Physical Sciences, Sensors & Controls, Software & Information Technology
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Magnetic field assisted fast charging of lithium ion batteries
Summary:
ISURF 5180 describes a method for fast charging of lithium ion batteries. A major limitation of Li-ion batteries for use in many applications, including electric vehicles, is the timescale for normal charging. Although fast charging is possible, over-oxidation in charging is common as electrodeposition of the anodic surface occurs. This...
Published: 8/15/2022
Category(s): Energy, Cleantech & Environmental
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Low-voltage bipolar hydrogen production from aldehydes and water
Summary:
Iowa State University researchers have developed an electrochemical system for the production of hydrogen utilizing alkaline solution and a copper-based catalyst. Aldehyde's are used as they are more thermodynamically favorable for electrolysis than water and have the additional benefit of producing useful carboxylic acids. Both these...
Published: 8/15/2022
Category(s): Energy, Cleantech & Environmental, Engineering & Physical Sciences
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Catalytic upcycling of polyolefins into fatty alcohols and fatty acids
Summary:
ISURF #05189 describes the conversion of waste polyolefins into fatty alcohols or fatty acids by early metal or lanthanide-catalyzed chain cleavage. The alcohols or acids derived by this method are high value and useful as surfactants, detergent agents, or lubricants.
Description:
The catalyst supports a pseudo reverse-polymerization...
Published: 8/17/2022
Category(s): Energy, Cleantech & Environmental, Materials, Ames Laboratory
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Pore-encapsulated catalysts for selective hydrogenolysis of plastic
Summary:
ISURF #05082 describes a catalyst and method to break down and recycle plastic, particularly polyethylene. The catalyst mimics enzymes in that it first seeks to template the polymer chain in a configuration that yields a narrow distribution of end products. Mesoporous silica nanoparticles (MSN) are used as scaffolds that polyethylene chains...
Published: 8/17/2022
Category(s): Energy, Cleantech & Environmental, Engineering & Physical Sciences, Ames Laboratory
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Interstitial Control during Additive Manufacturing
Summary: ISURF #4767 is a method to accurately predict, and thus control, the final composition of additively manufactured metal parts.Description: Metal-based additive manufacturing (AM) is a rapidly growing method in the production of intricate or complex parts. Currently, there is no standard method to predict the composition of the as-deposited...
Published: 2/16/2022
Category(s): Energy, Cleantech & Environmental, Materials
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A Novel Facultative Methylotroph, Methylocystis daltona SB2
Description: Methylocystis daltona SB2 (SB2) is a novel facultative methanotroph capable of utilizing methane and other multi-carbon substrates for growth has been identified. SB2 constitutively expresses methane monooxygenase, enabling bioremediation of cholorinated solvents, enhanced removal of methane from the atmosphere, and for controlling emission...
Published: 2/11/2022
Category(s): Energy, Cleantech & Environmental, Life Sciences
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Transition Metal Carbides for Direct Catalytic Methane Conversion
Summary: ISU researchers have developed a transition metal carbide for the conversion of methane into a variety of higher value chemicals. Particularly this technology enables conversion from methane to C2 hydrocarbons.Description: The conversion of methane to higher value chemicals presents many technical challenges that has thus far prevented commercial...
Published: 2/11/2022
Category(s): Energy, Cleantech & Environmental, Engineering & Physical Sciences, Materials
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Acid-Free dismantling of permanent magnets to extract rare earth elements
Summary: ISURF 04971 describes a method involving the acid free recycling of permanent magnets and battery materials to extract critical and valuable elements such as Rare Earth Elements (REEs), Cobalt, and Nickel. This technology allows for a environmentally and economically sustainable process for the high percent recovery of REEs, in order to be...
Published: 2/11/2022
Category(s): Ames Laboratory, Energy, Cleantech & Environmental, Materials
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