Sentences with word «electrocatalyst»
Gold and silver represent the «gold standard» in the world of electrocatalysts for conversion of carbon dioxide to carbon monoxide.
sciencedaily.com
Electrochemistry (solid - state and solution): characterization of electrocatalysts for solid oxide fuel cells and direct methanol fuel cells in half - cell and single - cell configurations.
«These catalysts are, to the best of our knowledge, the fastest reported molecular electrocatalysts for hydrogen production,» said PNNL postdoctoral associate Dr. Uriah Kilgore, first author of the study's findings.
Scientists around the world, including those at PNNL, will continue using the principles described in this review to design molecular electrocatalysts with earth - abundant metals.
According to the press release out of FireWater Fuel, the company spun out of this research, what has been discovered is a «breakthrough method of fabricating electrocatalysts made of inexpensive, non-toxic, and abundant resources, that facilitate the production of clean hydrogen from water.»
The discovery can lead to the development of efficient electrocatalysts for large scale production of synthesis gas — a mixture of carbon monoxide and hydrogen.
«Selective electrocatalysts developed to boost direct methanol fuel cell performance.»
[Ni (PPh2NC6H4X2) 2] 2 + Complexes as Electrocatalysts for H2 Production: Effect of Substituents, Acids, and Water on Catalytic Rates.»
A team of researchers has synthesized a highly active and durable class of electrocatalysts by exploiting the structural evolution of solid Pt - Ni bimetallic nanocrystals into porous cage - like structures or nanoframes.
The new electrocatalyst design... Read more →
With a deep understanding of the mechanisms of electrode reactions in DMFCs, the researchers designed and produced noble metal - based heterogeneous electrocatalysts with enhanced catalytic activity and high selectivity for MOR and ORR.
The exceptionally high activity, Jiao said, is likely due to the UD - developed electrocatalyst's extremely large and highly curved internal surface, which is approximately 150 times larger and 20 times intrinsically more active than polycrystalline silver.
New findings could help create alternative electrocatalysts for vehicles powered by hydrogen fuel cells, such as this bus at the University of Delaware.
«In this work, we discovered a highly active and stable electrocatalyst based on earth - abundant elements, which even outperforms the noble metal based ones,» she said.
Active and durable electrocatalysts on the air electrode are required to catalyze the oxygen - reduction reaction during discharge and the oxygen - evolution reaction during recharge.
Effects of Temperature and Gas - Liquid Mass Transfer on the Operation of Small Electrochemical Cells for the Quantitative Evaluation of CO2 Reduction Electrocatalysts P. Lobaccaro, M. Singh, E. L. Clark, Y. Kwon, A. T. Bell, and J. A. Ager
Resume: Highly active and low - cost electrocatalysts for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) are crucial due to the need for clean and renewable energy.
«Distant Protonated Pyridine Groups in Water - Soluble Iron Porphyrin Electrocatalysts Promote Selective Oxygen Reduction to Water.»
To validate whether their findings were unique, the researchers compared the UD - developed nano - porous silver catalyst with other potential carbon dioxide electrocatalysts including polycrystalline silver and other silver nanostructures such as nanoparticles and nanowires.
Electrochemical reduction of carbon dioxide over bimetallic metal - on - copper electrocatalysts Y. Nishimura, C. Hahn, T. Jaramillo
The study, «Nanostructured transition metal dichalcogenide electrocatalysts for CO2 reduction in ionic liquid,» is published in Science.
In order to create less expensive electrocatalysts that work well in an alkaline environment, researchers have to know exactly how the reaction unfolds, and what its most essential mechanisms are.
This approach to synthesizing the material is a significant advance towards realizing electrocatalysts with superior catalytic properties and lower cost.
The open structure of the nanoframes addresses some of the major design criteria for advanced nanoscale electrocatalysts, namely, high surface - to - volume ratio, three - dimensional surface accessibility to reactants, and optimal precious metal use.
The researchers found that when they used a nano - porous silver electrocatalyst, it was 3,000 times more active than polycrystalline silver, a catalyst commonly used in converting carbon dioxide to useful chemicals.
Scientists have long sought a way to convert CO2 to CO, but traditional electrocatalysts can not effectively initiate the reaction.
Schematic illustration showing a DMFC fabricated with selective electrocatalysts at the anode and cathode chambers.
According to lead author Professor Yuan Chen, from the University of Sydney's Faculty of Engineering and Information Technologies, the new method can be used to create bifunctional oxygen electrocatalysts for building rechargeable zinc - air batteries from scratch.
Recently, his group has developed a number of high - performance electrocatalysts made with non-precious metal oxide or nanocrystals hybridized with carbon nanotubes.
Optimal Pattern of Bimetallic Electrocatalysts for Efficient Conversion of Water and Carbon Dioxide to Hydrocarbons and Oxygenates M. Singh, Y. Lum, E. L. Clark, J. W. Ager, and A. T. Bell
Charles McCrory, «Immobilization of Molecular Electrocatalysts in a Coordinating Membrane to Enhance Their Activity and Selectivity for CO2 Reduction»
Improved CO2 reduction activity towards C2 + alcohols on a tandem Au on Cu electrocatalyst Carlos Morales - Guio, Etosha R. Cave, Christopher Hahn, Thomas F. Jaramillo
Scientists at the University of Ulster's Nanotechnology Institute and collaborators from Peking University and University of Oxford have developed reduced graphene oxide / platinum supported electrocatalysts (Pt / RGO) that could make fuel cells more efficient and more resistant to carbon monoxide poisoning.
A team at Rice University has used nitrogen - doped graphene quantum dots to create ethylene and ethanol, with stability and efficiency close to that of electrocatalysts like copper.
The work, the team suggests, provides a facile strategy for fabricating highly efficient electrocatalysts from earth - abundant materials for... Read more →
Haber, J. A., Guevarra, D., Jung, S. H., Jin, J. & Gregoire, J. M. Discovery of New Oxygen Evolution Reaction Electrocatalysts by Combinatorial Investigation of the Ni - La - Co - Ce Oxide Composition Space.
The PBCTF facilitates testing of anode electrocatalysts and high temperature membranes at electrolyzer relevant conditions.
«Ab Initio - Based Kinetic Modeling for the Design of Molecular Catalysts: The Case of H2 Production Electrocatalysts.»
Within JCAP, Dr. Haber's research focus surrounds the application of high - throughput methods to integrate promising lead materials into functional assemblies, such as integration of electrocatalyst libraries with light absorbers to produce functional photoanode and photocathode assemblies.
Piotr Zelenay of Materials Synthesis and Integrated Devices (MPA - 11) is world - recognized in the area of inexpensive, nonprecious metal electrocatalysts intended to replace platinum in polymer fuel cells.
The JCAP Benchmarking scientists developed and implemented uniform methods and protocols for characterizing the activities of electrocatalysts under standard operating conditions for water - splitting devices.
Benchmarking HER and OER Electrocatalysts for Solar Water Splitting Devices.
In JCAP, Dr. Soriaga's present research is focused on electrocatalytic reactions that underpin artificial photosynthesis; specifically, directed discovery of earth - abundant electrocatalysts, development of advanced surface - science methods for the characterization of benchmarked catalysts, and exploration of structure - composition - activity relationships to guide the expansion of catalyst - discovery strategies.
University of Illinois at Chicago researchers have determined how electrocatalysts can convert carbon dioxide to carbon monoxide using water and electricity.
IACS team develops high - performing bio-inspired electrocatalyst for hydrogen generation in an aqueous medium
Current research activities include the synthesis and characterization of carbon - dioxide reducing electrocatalysts that are based on Earth - abundant metals and studies of the reaction kinetics of carbon - dioxide reduction with active catalysts.
Scientists at Rice University and the Lawrence Livermore National Laboratory have predicted and created new two - dimensional electrocatalysts — low - cost, layered transition - metal dichalcogenides (MX2) based on molybdenum and tungsten — to extract hydrogen from water with high performance and low cost.
Researchers at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory are part of a scientific collaboration that has identified a new electrocatalyst that efficiently converts CO2 to carbon monoxide (CO), a highly energetic molecule.