Wisconsin Alumni Research Foundation

Technology

More Efficient Water-Splitting Cells

N-type bismuth vanadate (BiVO4) has emerged as a promising photoanode for use in solar water-splitting cells given its favorable light absorption and conduction band characteristics. To date, however,...
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Kyoung-Shin Choi, Tae Woo Kim | P140325US01

Technology

Coating Extends Life of Catalytic System

Biomass processing and many other industrial catalytic reactions are performed in hot, liquid conditions. These hydrothermal reactions may be carried out at elevated temperatures (e.g., 200 degrees C)...
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James Dumesic, Yomaira Pagan-Torres, Jeffrey Elam, Christopher Marshall, Joseph Libera | P140345US01

Technology

Preparing HMF from Biomass in Polar Aprotic Solvents

HMF (5-hydroxymethyl furfural) is a highly sought renewable compound that can be used to produce bulk and value-added chemicals. Such chemicals include FDCA, which is useful in the polymer industry, a...
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James Dumesic, George Huber, Ronen Weingarten | P140138US01

Technology

Concentrated C5 and C6 Sugars from Biomass

Widespread production of sustainable fuels and chemicals will require cost-effective methods for breaking down biomass into its constituent sugars. Attaining high yields of concentrated C5 and C6 carb...
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James Dumesic, David Martin Alonso, Jeremy Luterbacher | P140075US01

Technology

Producing Linear Alpha Olefins from Biomass

Linear alpha olefins (LAOs) are valuable commodity chemicals traditionally derived from petroleum. They are versatile building blocks for making a range of chemical products like polyethylene, synthet...
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James Dumesic, Dong Wang, David Martin Alonso, Sikander Hakim | P130275US01

Technology

Powering Devices with Piezoelectric ‘Sponge’

Piezoelectric materials produce electric charge in response to mechanical stress. Such materials can be utilized as very small ‘nanogenerators’ that absorb vibrations from the environment (e.g., a...
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Xudong Wang, Ping Zhao, Yanchao Mao | P130228US01

Technology

Powerful New Enzyme for Transforming Biomass

Converting plant cellulose and hemicellulose into fermentable sugars is a major bottleneck in the biofuel industry. Chemical pretreatment and enzyme hydrolysis (breakdown) usually are required. Amon...
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Brian Fox, Christopher Bianchetti, Taichi Takasuka | P120371US02

Technology

Environmentally Green Glue

Formaldehyde-based adhesives have been used to make interior plywood and particle board for decades. These synthetic adhesives, which are derived from petroleum, are inexpensive and perform well. Howe...
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Srinivasan Damodaran, Dani Zhu | P130276US02

Technology

Phosphine Ligands Made Cheaper, Better

Enantiomers are pairs of compounds that have the same chemical formula but different spatial structures (like your left and right hand, they are non-superimposable mirror images of each other). This i...
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Jennifer Schomaker, Robert Grigg, Ryan Van Hoveln | P130268US02

Technology

Biomass-Derived HMF Using Renewable Solvents

The sugars found in biomass can be treated with solvent and converted into many important building block chemicals. One such chemical is 5-hydroxymethylfurfural (HMF), which is used to make plastic ma...
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James Dumesic, Jean Marcel Ribeiro Gallo, David Martin Alonso | P120325US01

Technology

Modified Yeast Ferments Biomass Xylose

Producing biofuel on a useful scale requires efficient fermentation of cellulosic plant material. The sugars glucose and xylose are the most abundant carbohydrates found in hemicellulose. The yeast mo...
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Trey Sato | P120307US01

Technology

Solar Cells Track Sun

Maximizing how much sunlight strikes a solar panel is one tactic to boost efficiency. Some approaches have tried to imitate heliotropic plants by repositioning the panels to follow the sun. Unfortunat...
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Hongrui Jiang, Chensha Li, Ye Liu | P120269US01

Technology

Prolonging Solar Cell Life

Dye-sensitized solar cells (DSSCs) have attracted tremendous attention because they are cheap and efficient. The DSSCs with the highest power conversion efficiency (greater than 12 percent) are based ...
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Hongrui Jiang, Xi Zhang, Xuezhen Huang | P130136US01

Technology

Electrodes with Low-Cost Replaceable Tips

Electrodes routinely are used in electrochemical sensing, fuel cells, batteries and numerous other applications. Critically, the surface of an electrode must be clean before sensing elements can be at...
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Sundaram Gunasekaran, Jiang Yang | P120016US02

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