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Researchers at Stanford University have shown that porous polymer encapsulation of metal-supported catalysts can drive the selectivity of CO 2 conversion to hydrocarbons. This work was supported by grants from the Packard Foundation and the Precourt Institute for Energy at Stanford University. Chengshuang Zhou, Arun S.
Now, a team from the University at Buffalo, Southern Illinois University, University of South Carolina and Brookhaven National Laboratory reports a highly active and stable Ru-free catalyst from earth-abundant elements for efficient carbon-free hydrogen generation via ammonia decomposition. Resources. Tabassum et al.
The conversion normally requires significant amounts of energy in the form of high heat—a temperature of at least 700 ?C, She and her colleagues, including scientists from the University of Maryland in College Park and DENSsolutions, in Delft, the Netherlands, reported their findings in Nature Materials. —Renu Sharma.
A team of Brown University researchers has fine-tuned a copper catalyst to produce complex hydrocarbons—C 2+ products—from CO 2 with high efficiency. An open-access paper on the work is published in Nature Communications. —Kim and Palmore (2020). The research was funded by the National Science Foundation (CHE-1240020).
The electrocatalytic conversion of CO 2 using renewable energy could establish a climate-neutral, artificial carbon cycle. Conversion into liquid fuels would be advantageous because they have high energy density and are safe to store and transport. These could then be burned as needed. Credit: Angewandte Chemie. and Xiong, Y.
Researchers at the University of Oxford have developed a method to convert CO 2 directly into aviation fuel using a novel, inexpensive iron-based catalyst. The conversion reaction also produces light olefins—ethylene, propylene, and butenes—totalling a yield of 8.7%. and selectivity to C 8 –C 16 hydrocarbons of 47.8%
A team of researchers led by a group from the University of Maryland has. developed a halogen conversion–intercalation chemistry in graphite that produces composite electrodes with a capacity of 243 mAh g -1 (for the total weight of the electrode) at an average potential of 4.2 Proposed conversion–intercalation chemistry.
Kazunari Domen from The University of Tokyo, Prof. Lianzhou Wang from The University of Queensland, Prof. Photocatalytic water splitting has attracted great interest as a means of cost-effective conversion of sustainable solar energy to valuable chemicals. —Wang et al. 2021.01.001.
An interdisciplinary team at Northwestern University has found that the enzyme responsible for the methane-methanol conversion catalyzes this reaction at a site that contains just one copper ion. Credit: Northwestern University. Our study provides a major leap forward in understanding how bacteria methane-to-methanol conversion.
Recent research in electrocatalytic CO 2 conversion points the way to using CO 2 as a feedstock and renewable electricity as an energy supply for the synthesis of different types of fuel and value-added chemicals such as ethylene, ethanol, and propane. Their paper is published in Proceedings of the National Academy of Sciences (PNAS).
Scientists at Stanford University have developed electrochemical cells that convert carbon monoxide (CO) derived from CO 2 into commercially viable compounds more effectively and efficiently than existing technologies. —senior author Matthew Kanan, an associate professor of chemistry at Stanford University. —Ripatti et al.
A team from the University of Calgary and Rice University has used flash joule heating (FJH) ( earlier post ) to convert low-value asphaltenes—a by-product of crude oil refining—into a high-value carbon allotrope, asphaltene-derived flash graphene (AFG). Flash graphene from asphaltenes. (A) —Saadi et al.
American Battery Technology Company (ABTC) ( earlier post ) announced results of its third-party Qualified Person (QP)-audited Inferred Resource Report that details the analysis of its lithium deposit at its Tonopah Flats Lithium Project in Nevada. The inferred resources report concludes that Tonopah Flats may hold an estimated 15.8
Researchers at Ariel University in Israel have developed a new type of hydrogen generator for “on-demand” use with fuel cells. hours of their experiment, 110 L of hydrogen was generated with an average flow rate of 290 mL/min and 98% conversion efficiency. —Zakhvatkin et al. 1c00367.
These highly efficient, clean energy conversion devices require very active catalysts for the chemical reaction—the oxygen reduction reaction, or the “lifeblood” that makes a fuel cell efficiently function. Along with PNNL, researchers from Washington University in St. —Yuyan Shao.
Researchers from Peking University and SINOPEC have developed a one-post method for the synthesis of C 6+ branched compounds from isopropanol condenstation on Ni/MoC catalysts. The branched-chain selectivity in C 6+ and nonnecessity of H 2 give this route advantage in high-octane gasoline blendstock production. —Zhou et al.
A fast, green and one-step method for producing porous carbon spheres—a component for carbon capture technology and for new ways of storing renewable energy—has been developed by Swansea University researchers. storage and conversion, catalysis, gas adsorption and storage, drug and enzyme delivery, and water treatment.
Researchers from Northwestern University and Princeton University have explored the impact on US air quality from an aggressive conversion of internal combustion vehicles to battery-powered electric vehicles (EVs). —Jordan Schnell. Schnell, Vaishali Naik, Larry W. Horowitz, Fabien Paulot, Paul Ginoux, Ming Zhao, Daniel E.
The miscanthus biomass was harvested and baled at the INA demonstration site in Croatia in February this year and shipped for processing to Clariant’s pre-commercial sunliquid plant in Straubing, Germany for conversion into lignocellulosic sugars and ethanol.
A study by a team at University of Illinois at Urbana−Champaign has found that, with currently achievable performance levels, synthetic fuels produced via the electrochemical reduction of CO 2 and the Fischer-Tropsch (FT) process system are not economically and environmentally competitive with using petroleum-based fuel. —Li et al.
Researchers from the Dalian Institute of Chemical Physics and the University of Chinese Academy of Sciences have developed a photocatalyst for the selective decarboxylation of fatty acids to produce diesel- and jet-range molecules under mild conditions (30?°C, C, H 2 pressure ?0.2?MPa). —Huang et al.
Rice University scientists and their colleagues at C-Crete Technologies have optimized a process to convert waste from rubber tires into graphene that can, in turn, be used to strengthen concrete. The lab calculated electricity used in the conversion process would cost about $100 per ton of starting carbon. —Rouzbeh Shahsavari.
A new boron-copper catalyst for the conversion of carbon dioxide (CO 2 ) into chemicals or fuels has been developed by researchers at Ruhr-Universität Bochum and the University of Duisburg-Essen. They optimized already available copper catalysts to improve their selectivity and long-term stability. —Wolfgang Schuhmann.
Researchers at Pacific Northwest National Laboratory (PNNL), with colleagues from Oregon State University, have developed PNNL a durable, inexpensive molybdenum-phosphide catalyst that efficiently converts wastewater and seawater into hydrogen. If you can produce hydrogen from seawater, the resource pool is pretty much unlimited.
As a result, there is a critical need to create new pathways for biofuel conversion that reduces carbon waste, prevents the loss of CO 2 emissions, and in turn, maximizes the amount of renewable fuel a conversion process yields. University of Wisconsin-Madison. The awardees are: LanzaTech, Inc.
Researchers at the University of Turku in Finland have developed a thin-layer artificial biofilm technology for sustainable and long-term ethylene photoproduction. 2 ethylene at 1.54% light to ethylene conversion efficiency. fold improvement in the light to ethylene conversion efficiency as compared to the cell suspension.
Researchers at the University of Delaware have shown that ruthenium deposited on titania is an active and selective catalyst for breaking down polypropylene into valuable lubricant-range hydrocarbons with narrow molecular weight distribution and low methane formation at low temperatures of 250 °C with a modest H 2 pressure. 1c00874.
Researchers from the University of Houston, with colleagues at the University of São Paolo in Brazil, have demonstrated how copper-resistant bacterium from a copper mine in Brazil convert CuSO 4 (copper sulfate) ions into zero-valent Cu (metallic copper). An open-access paper on their research is published in Science Advances.
A team from Nanjing University, Hubei Normal University and Zhejiang University has developed a cobalt-doped graphdiyne catalyst for catalytically decomposing ammonia (NH 3 ) to generate H 2. Conversely, low-cost metal catalysts are available but demonstrate suboptimal catalytic effects. —Liu et al.
One way to mitigate high feedstock cost is to maximize conversion into the bioproduct of interest. This maximization, though, is limited because of the production of CO 2 during the conversion of sugar into acetyl-CoA in traditional fermentation processes. Jones, Alan G. Fast, Ellinor D. Carlson, Carrissa A. Antoniewicz, Eleftherios T.
A competing reaction, called the hydrogen evolution reaction (HER) or “water splitting,” takes precedence over the CO 2 conversion reaction. —Haotian Wang, a Rowland Fellow at Harvard University and the corresponding author. This study was supported in part by the Rowland Institute at Harvard University.
However, some compounds like FeF 3 are capable of transferring multiple electrons through a more complex reaction mechanism, called a conversion reaction. Iron fluoride, an intercalation-conversion cathode for lithium-ion batteries, promises a high theoretical energy density of 1922?Wh?kg
Researchers at the University of Oklahoma, in collaboration with the University of Tulsa, have a novel approach for the water-assisted upgrading of the renewable chemical furfural, doubling or tripling the rate of conversion. An important strategy is to hydrogenate the molecule so it can be used in the chemical industry later.
Researchers at The Ohio State University have used a chemical looping process to produce hydrogen from hydrogen sulfide gas—commonly called “sewer gas”. Compared with the undoped sulfur carrier, Mo dopant facilitates the surface hydrogen diffusion, thus promoting the overall H 2 S conversion. —Jangam et al. 1c03410.
American Battery Metals Corporation; Field Demonstration of Selective Leaching, Targeted Purification, and Electro-Chemical Production of Battery Grade Lithium Hydroxide Precursor from Domestic Claystone Resources. General Atomics; Rare Earth Element (REE) Separation and Processing Demonstration Project Partners: Rare Element Resources, Inc.,
Researchers at the University of California Santa Barbara have developed catalytic molten metals to pyrolize methane to release hydrogen and to form solid carbon. Bi 0.73 ) achieved 95% methane conversion at 1065°C in a 1.1-meter Under these conditions, the equilibrium conversion is 98%. Resources. —Upham et al.
Researchers in China led by a team from Fudan University have demonstrated the electrochemical reduction of CO 2 toward C 2+ alcohols with a faradaic efficiency of ~70% using copper (Cu) catalysts with stepped sites. 2020) “Efficient Electrocatalytic CO 2 Reduction to C 2+ Alcohols at Defect-Site-Rich Cu Surface,” Joule doi: 10.1016/j.joule.2020.12.011.
Bottom: Schematics of the proposed de-/lithiation mechanism during the conversion reaction of TM-HEO. Conversion batteries based on electrochemical material conversion allow for an increase of the stored amount of energy, while battery weight is reduced. Sarkar et al. —Sarkar et al.
Researchers from University of Girona (Spain) successfully used electrically efficient microbial electrosynthesis cells (MES) to convert CO 2 to butyric acid. This study showcases the potential of bioelectrochemical conversion of CO 2 to butyric acid and its subsequent upgrade to butanol in microbial electrolysis cells.
A team at the University of Pennsylvania is proposing the use of a liquid-organic hydrogen carrier (LOHC)—specifically, 1,2,3,4 -tetrahydroquinoline (THQ)—for use as an endothermic fuel for thermal protection of hypersonic aircraft engines. 1 were obtained, with conversions greater than 80% at 600 °C. earlier this year.
Researchers at the University of Cambridge, with colleagues at the University of Tokyo, have developed a standalone device that converts sunlight, carbon dioxide and water into formic acid, a carbon-neutral fuel, without requiring any additional components or electricity. Qian Wang et al.
The research was supported by the Welch Foundation (C-1220, C-1222), the Air Force Office of Scientific Research (FA9550-15-1-0022), Syzygy Plasmonics, the Department of Defense and Princeton University. Carter, Peter Nordlander, and Naomi J.
SoCalGas) introduced an innovative new solar-powered hydrogen generation system during the California Air Resources Board Technology Expo and Symposium at the University of California, Riverside. Southern California Gas Co.
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