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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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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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Mechanochemical Recovery of Co, Li, and Other Essential Components from Spent Lithium-Ion Batteries
Summary: Iowa State University and Ames Laboratory researchers have developed a method for recycling lithium-ion batteries that is more energy efficient and environmentally friendly than existing methods.Description: The growing use of lithium-ion batteries (LIBs) has increased the demand for the elements required for production, such as lithium, cobalt,...
Published: 2/11/2022
Category(s): Ames Laboratory, Energy, Cleantech & Environmental, Engineering & Physical Sciences
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Carbothermic-Silicide Method of Preparing Rare Earth Master Alloys Containing 5 to 40 Atomic Percent Silicon from the Respective Oxides
Summary: Iowa State University and Ames Laboratory researchers have developed a method of preparing rare earth-silicon alloys using carbon as a reducing agent instead of calcium that is less expensive than the traditional methods and more environmentally friendly.Description: The present invention provides a one-step process whereby rare earth-containing...
Published: 2/11/2022
Category(s): Ames Laboratory, Engineering & Physical Sciences, Materials
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Solvent-Free, Solid Phase Synthesis of Hybrid Organolead Mixed-Halide Perovskites with Superior Purity
Summary: ISU and Ames Laboratory researchers have developed a method of producing organolead halide perovskites for the use of low cost, high power conversion efficiency(PCE) photovoltaic cells. Since perovskite solar cells are tunable, the theoretical PCE limit is higher than that of silicon solar cells, and organolead halide perovskites have enhanced...
Published: 2/11/2022
Category(s): Ames Laboratory, Energy, Cleantech & Environmental, Engineering & Physical Sciences, Materials
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Electrocatalyst for water electrolysis
Summary: ISU and Ames Laboratory scientists have developed a metal chalcogenide material for use as a water electrolysis catalyst for the generation of hydrogen.
Description: Hydrogen is a unique energy carrier in that it can be produced from a number of diverse pathways utilizing a variety of domestically available feedstock, including natural gas,...
Published: 2/11/2022
Category(s): Ames Laboratory, Energy, Cleantech & Environmental, Materials
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Modified La-Fe-Si Alloys for Magnetocaloric Applications
Summary:
Iowa State University and Ames Laboratory researchers have modified the giant Magneto Caloric Effect alloy La-Fe-Si to create new alloys with greatly improved mechanical properties.
Description:
Materials with first-order magnetic phase transition (i.e., giant MCE materials) often suffer from high brittleness, making them unsuitable for...
Published: 6/17/2022
Category(s): Ames Laboratory, Materials
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Cerium, Cobalt and Copper Alloy doped with Tantalum or/and Iron as a Permanent Magnet Material
Summary: ISU and Ames Laboratory researchers have develop a gap magnet that utilizes trace amount of cheaper, abundant and non-critical cerium (Ce) as an alternative to critical rare-earths containing magnet alloys. This invention makes the magnet significantly cheaper and less dependent on supplies of rare-earth materials, with that performance surpasses...
Published: 2/11/2022
Category(s): Ames Laboratory, Engineering & Physical Sciences, Materials
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Ni-Co-Mn-Ti Intermetallics with Enhanced Magnetocaloric Properties Prepared by Combination of Different Methods
Summary: Iowa State University (ISU) and Ames Laboratory (AL) researchers have developed a method to manufacture Ni-Co-Mn-Ti intermetallics with enhanced magnetocaloric properties. The resultant materials produce an extremely large magnetocaloric effect (MCE) with a modest magnetic field change. The MCE is nearly three times greater at near room temperature...
Published: 2/11/2022
Category(s): Ames Laboratory, Engineering & Physical Sciences, Materials
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