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Researchers at Uppsala University have developed photocatalytic composite polymer nanoparticles (“polymer dots”) that show promising performance and stability for the production of hydrogen from water and sunlight. These polymer dots are designed to be both environmentally friendly and cost-effective. 0c12654.
Researchers, led by a team from the University of Pennsylvania, have used a polymer-folding mechanism to develop a new and versatile kind of solid polymer electrolyte (SPE) that currently offers proton conductivity faster than Nafion by a factor of 2, the benchmark for fuel cell membranes.
Scientists at Kyoto University’s Institute for Integrated Cell-Material Sciences (iCeMS) have developed a new coordination polymer glass membrane for hydrogen fuel cells that works just as well as its liquid counterparts with added strength and flexibility. Adding zinc to this liquid led to the formation of a solid, elastic polymer glass.
Researchers at the Fraunhofer Institute for Chemical Technology ICT are working together with the Karlsruhe Institute of Technology KIT to develop a new cooling concept that will enable polymers to be used as EV electric motor housing materials, thereby reducing the weight of the motor and thus, the EV itself.
Researchers in Israel have designed a separate-cell photoelectrochemical (PEC) water-splitting system with decoupled hydrogen and oxygen cells for centralized hydrogen production. It addresses the challenges of designing, building, and optimizing the device for assessing large-scale hydrogen generation. —Landman et al.
As water-splitting technologies improve, often using porous electrode materials to provide greater surface areas for electrochemical reactions, their efficiency is often limited by the formation of bubbles that can block or clog the reactive surfaces. As a result, there were substantial changes of the transport overpotential.
Using a novel computational chemistry hybrid approach, scientists from IBM Research have successfully discovered a new class of polymer materials—the first new class of polymers discovered in more than 20 years—that could potentially transform manufacturing and fabrication in the fields of transportation, aerospace, and microelectronics.
Researchers at the University of Colorado Boulder and Singapore University of Technology and Design have added a “fourth dimension” to additive manufacturing technology, opening up possibilities for the creation and use of adaptive, composite materials in manufacturing, packaging and biomedical applications. A team led by H.
Schematic illustration of a single polymer electrode fuel cell with the suggested optimal gas distributor system and optimal catalytic layer. The gas supply and water outlet systems, designed to produce entropy uniformly, have a fractal structure inspired by the human lung. Credit: ACS, Kjelstrup et al. Click to enlarge.
A team led by researchers from Georgia Tech have used an electropolymerization process to produce aligned arrays of polymer nanofibers that function as a thermal interface material able to conduct heat 20 times better than the original polymer. This material could ultimately allow us to design electronic systems in different ways.
The researchers combined a copper electrocatalyst with an ionomer [polymers that conduct ions and water] assembly that intersperses sulfonate-lined paths for the H 2 O with fluorocarbon channels for the CO 2. By applying this design strategy, we achieved CO 2 electroreduction on copper in 7 M potassium hydroxide electrolyte (pH ?
a low cost, raw materials that do not raise concerns in terms of supply bottlenecks (electrodes that do not include PGMs, stainless steel current collectors), a compact design, the adoption of feeds based on non-corrosive liquids (low concentration alkali or DI water), and differential pressure operation.
volts (V) of water-splitting voltage with its novel low-cost electrolysis technology. The theoretical minimum voltage needed to split water molecules into hydrogen and oxygen is 1.23 Nanosystem for water electrolysis. HyperSolar, Inc. announced that it had reached 1.25 V (at 25 °C at pH 0). Click to enlarge.
Alberta’s Innovative Energy Technologies Program (IETP) is supporting 5 new pilot projects to reduce energy use, water use and CO 2 emissions in oil sands processing as well as improving the recovery of crude oil and bitumen in reserves that were once unrecoverable. Water and/or solvent will be injected concurrent with the electrical heating.
HT-PEM fuel cell technology would allow heavy-duty and other hard-to-decarbonize applications to operate with high efficiency while using hydrogen and mitigating water management problems. At high-temperature operation, we can build heavy-duty trucks with a much simpler design, which allows us to significantly reduce the weight.
A team of researchers from North Carolina State University, SINTEF in Norway and the Norwegian University of Science and Technology, has developed a polymer membrane technology that removes carbon dioxide from mixed gases with both high permeability and high selectivity. The researchers overcame this tradeoff through a layered design.
Researchers from the Karlsruhe Institute of Technology (KIT) and their Canadian partners have designed a low-cost photoreactor design for solar-driven synthesis. The photoreactors have a low level of complexity, are readily manufacturable via mass fabrication techniques in polymers, and are easy to adapt to diverse photocatalysts.
They used natural sunlight to convert water into hydrogen and oxygen using a mixture of biological components and manmade technologies. A new paper, published in Nature Energy , outlines how the researchers at the Reisner Laboratory in Cambridge developed their platform to achieve unassisted solar-driven water-splitting. Katarzyna P.
Through the implementation of two fixed-in-space wheelchairs, an automatic sliding ramp and low floor design, the double-decker bus secures added accessibility for disabled and mobility impaired passengers.
The Dolphyn project showcases a floating semi-submersible design with an integrated wind turbine, PEM electrolysis and desalination facilities. The project concerns the production of hydrogen at scale from offshore floating wind in deep water locations. This funding will enable the detailed design of a 2 MW prototype system.
HIF and Siemens Energy are engaged in front end engineering and design for 1.8 GW of Silyzer 300 polymer electrolyte membrane (PEM) electrolyzers that will use renewable energy to separate hydrogen from water, resulting in approximately 300,000 tonnes of hydrogen per year.
million) investment as part of its Polymer Fuel Cell Challenge. Based on current fuel cell technology, an average fuel cell family car would require 2-3 ounces of platinum in a fuel cell, with many car manufacturers striving to reduce this to 1 ounce through design engineering of currently available fuel cell technology.
With its abbreviated compression phase and long expansion phase, it was designed specifically for operation at partial load. The ultra high-strength outer shell comprises two layers: an inner layer of carbon fiber-reinforced polymer (CFRP) and an outer layer of glass fiber-reinforced polymer (GFRP).
Example of a lithium-water rechargeable battery. Researchers at the University of Texas, including Dr. John Goodenough, are proposing a strategy for high-capacity next-generation alkali (lithium or sodium)-ion batteries using water-soluble redox couples as the cathode. In theory, the decomposition potential of water is 4.27
Grzegorz Milczarek from Poznan University of Technology (Poland), and Olle Inganäs from Linköping University (Sweden), have combined lignin derivatives, which are electronic insulators, with polypyrole, a conductive polymer, into an interpenetrating composite suitable for use as a battery cathode. —Milczarek and Inganäs. 1215159.
Elon Musk used Tesla’s much-anticipated Battery Day presentation not to disclose some super cell, but to outline an aggressive, comprehensive and radically innovative approach to battery design, manufacturing and vehicle integration that he projected will result in a 56% reduction in cost/kWh and a $25,000 electric vehicle in about three years.
AFC Energy’s system is designed to meet these needs by delivering an EV charger that can be safely fueled using a variety of hydrogen sources while operating at optimum efficiency to enable rapid charging rates when and where it is required. In recent years, novel AFCs that use a polymer membrane as the electrolyte have been developed.
Fermentation requires no organic solvent, and the water used is recycled. Greener reaction conditions: Kraton Performance Polymers, LLC, Houston, Texas. Kraton has developed a family of halogen-free, high-flow, polymer membranes made using less solvent. The biggest benefits are during use.
Advent’s MEAs are designed to operate at high temperatures ranging from 120 °C to 180 °C, and offer a significant advantage to alternative solutions. Advent’s high-temperature membrane is based on pyridine-type structures incorporated around a stable polymer backbone.
With this application in mind, we created spirocyclic polymers with N-aryl bonds that demonstrated noninterconnected microporosity in the absence of ladder linkages. The resulting glassy polymer membranes demonstrated nonthermal membrane fractionation of light crude oil through a combination of class- and size-based “sorting” of molecules.
SOLVE adds a solvent to the steam in SAGD (basic operation depicted above) to reduce energy input and water consumption. Unlike surface mined oil sands, in-situ recovery involves much less land disturbance, but still requires the use of water and natural gas in the steam production process. Source: StatoilHydro. Click to enlarge.
The winning design: “WaterBone”. The design challenge served to accelerate innovative ideas by using novel material technologies, structural designs, energy absorbing materials and unique methods of manufacturing to reduce vehicle curb weight while maintaining current US automotive safety standards. Click to enlarge.
The Energy Department (DOE) recently announced $10 million, subject to appropriations, to support the launch of the HydroGEN Advanced Water Splitting Materials Consortium ( HydroGEN ). Earlier post.) Establishing robust online data portals that capture and share the results of non-proprietary research.
The Presidential Green Chemistry Challenge Awards are presented in five categories: academic, small business, greener synthetic pathways, greener reaction conditions and designing greener chemicals. This technology will significantly reduce energy usage, water consumption, NO x and SO x emissions, and algae bloom. Cargill, Inc.
Combined with AFC Energy’s alkaline fuel cell technology platform, H-Power, the partnership will enable the design and delivery of high-quality and innovative solutions and explore new areas where both companies have a clear route to market. In recent years, novel AFCs that use a polymer membrane as the electrolyte have been developed.
Fuel cells, especially polymer electrolyte membrane fuel cells (PEMFC), are already used in hydrogen-powered automobiles. General recycling processes for precious metals that are currently in use are also designed for these metals, in which polymer electrolyte membrane fuel cells are currently largely processed.
Independent analysis commissioned by the Carbon Trust predicts current polymer fuel cell technology will cost $49/kW in automotive applications when manufactured at mass scale (i.e. Our new analysis shows that the future is bright but innovation is essential to unlock the market potential by driving down the costs of new polymer fuel cells.
Scientists at USC have developed a novel water-based Organic Redox Flow Battery (ORBAT) for lower cost, long lasting large-scale energy storage. ORBAT employs two different water-soluble organic redox couples on the positive and negative side of a flow battery. Schematic of ORBAT. Click to enlarge. —Yang et al. —Yang et al.
Scientists from the National Physical Laboratory (NPL) in the UK have developed a novel reference electrode for polymer electrolyte membrane water electrolyzers (PEMWEs) and used it to measure the electrochemical surface area (ECSA) of Pt catalysts in situ for the first time. Reference electrode configuration. Source: NPL. 2015.01.005.
Viessmann Group and Panasonic Corporation have jointly developed a new fuel cell cogeneration system, which will become the first polymer electrolyte fuel cell (PEFC) fuel cell system available for single-homes in Europe. The unit of the peak load boiler and the hot water tank has been developed by Viessmann. Click to enlarge.
A team from the Ruhr-Universität Bochum, Technische Universität München and Universiteit Leiden has doubled the catalytic activity of electrodes for water electrolysis by applying a monolayer of copper the platinum electrodes. Modern polymer electrolyte membrane (PEM) electrolyzers thus require larger platinum loadings (~0.5–1.0
Theion grows a pure sulfur wafer by a Direct Crystal Imprinting (DCi) method (no slurry coating, no solvents, no water, no drying) directly from molten sulfur in a few seconds. A proprietary solid-state polymer electrolyte operates in the voids of the sulfur wafer.
Ignite Energy Resources supercritical water process diagram. IER’s proprietary supercritical water technology (SCW) transforms low-ranked coals, including lignite, directly into higher-valued oils and cleaner coal products. Source: IER. Click to enlarge. not via an indirect pathway (gasification) as in Fischer-Tropsch processes.
As reported in the journal Angewandte Chemie , the water content in the channels of the porous salts plays an important role in the proton conduction performance of the materials. Presenting high porosity, the crystalline salts contain polar 1-D channels for which it is easy to confine highly polar molecules e.g. water inside the channels.
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