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Search Results - energy, cleantech & environmental

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Maximally Efficient Vertical-Axis Wind Turbine
Summary: Iowa State University researchers have developed a maximally efficient vertical axis wind turbine (MEVAWT) with greatly improved efficiency. Description: Modern wind turbines generally exist in two configurations: horizontal axis wind turbine (HAWT) and vertical axis wind turbine (VAWT). HAWT configurations are inherently more efficient th...
Published: 6/10/2019
Category(s): Energy, Cleantech & Environmental
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 enh...
Published: 5/24/2019
Category(s): Ames Laboratory, Energy, Cleantech & Environmental, Engineering & Physical Sciences, Materials
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 ga...
Published: 2/14/2019
Category(s): Ames Laboratory, Energy, Cleantech & Environmental, Materials
Two dimensional early transition metal carbides (MXenes) as catalysts for water gas shift and propane dehydrogenation
ISU researchers have developed a new catalyst for efficient conversion of carbon monoxide into carbon dioxide and hydrogen as part of the water gas shift reaction and transforming shale gas efficiently into propylene via propane dehydration. Description: 2D materials have unusual electron, mechanical and optical properties and have been extensivel...
Published: 1/16/2019
Category(s): Energy, Cleantech & Environmental, Engineering & Physical Sciences, Materials
Green, Low Cost, Non-Toxic Technology for PEF Polymer Production
Summary: ISU researchers have demonstrated an inexpensive, commercially available material, as an effective catalyst for the disproportionation or isomerization of armatic carboxylates to dicarboxylates, allowing for new production routes to valuable polymers such as PET and PEF. Description: Dicarboxylic acids, such as terephthalic acid or 2,5- f...
Published: 5/24/2018
Category(s): Energy, Cleantech & Environmental, Materials
Isomerization of Muconic Acid for the Production of Bio-based Terephthalic Acid
Summary: Iowa State University researchers have developed a cost-effective method to isomerize cis-, cis- and cis-, trans- muconic acid to trans-, trans- muconic acid, which readily combines with acetylene via Diels-Alder reaction to create terepthalic acid. Description: Polyethylene-terephthalate (PET) is one of the most abundantly-used thermop...
Published: 5/21/2018
Category(s): Agriculture, Energy, Cleantech & Environmental, Materials
Synthesis of methylammonium lead iodide perovskite films via cation exchange of melt-processed films for photovoltaic applications
Summary: Iowa State University and Ames Laboratory researchers have developed a new method of making perovskite thin films for an absorber layer in photovoltaic cells. Description: Perovskite solar cells have been an area of interest in emerging solar technologies since 2009. With certified power conversion efficiency (PCE) increasing from about 1...
Published: 5/4/2018
Category(s): Ames Laboratory, Energy, Cleantech & Environmental, Materials
Polymers for Caloric Applications
Summary: Iowa State University and Ames Laboratory researchers have developed a new polymeric material that provides a larger electrocaloric effect than previously known polymer materials. Description: Highly-efficient, solid-state cooling devices offer the promise of greatly improved energy efficiency relative to vapor-compression refrigeration s...
Published: 2/26/2018
Category(s): Ames Laboratory, Energy, Cleantech & Environmental, Engineering & Physical Sciences, Materials
Alignment Promoted in Heat Treatable Magnets Through Application of External Applied Magnetic Field at the Start of Binder-Assisted Molding
Summary: Iowa State University and Ames Laboratory researchers have developed a method to produce sintered, final-shape magnets with high density and aligned microstructure. The resulting permanent magnets feature higher energy product and improved remanence versus standard processing, with improved performance in motors and generators. Descripti...
Published: 11/20/2017
Category(s): Ames Laboratory, Energy, Cleantech & Environmental, Materials
Aluminum-Alkaline Metal-Metal Composite Conductor
Summary: Iowa State University and Ames Laboratory researchers have developed a high strength, lightweight aluminum wire for high-voltage power transmission with reduced electrical resistance for overhead electrical lines. Description: High-voltage electric power transmission cables based on pure aluminum strands with a stranded steel core (ACSR) ...
Published: 5/24/2017
Category(s): Ames Laboratory, Energy, Cleantech & Environmental, Materials
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