Paving the way for hydrogen fuel cells
Scientists have developed an electrocatalyst using less expensive ruthenium and nitrogen-doped graphene, promising better durability and reduced noble-metal usage than platinum-based alternatives.
Electrocatalysis
Articles tagged with Electrocatalysis
Electrocatalyst nanostructures key to improved fuel cells, electrolyzers
Purdue University scientists have identified a new type of electrocatalyst that is both active and stable, which could solve a significant problem in fuel cells and electrolyzers. The nanoscale nickel islands on platinum substrate exhibit unexpected properties that make it an ideal candidate for promoting chemical reactions.
New approach to revolutionize the production of molecular hydrogen
Researchers at Technische Universität Dresden have developed a new, low-cost electrocatalyst for producing molecular hydrogen. The MoNi4/MoO2@Ni catalyst exhibits high HER activity comparable to platinum and presents state-of-the-art HER activity amongst all reported Pt-free electrocatalysts.
Promising results obtained with a new electrocatalyst that reduces the need for platinum
Researchers at Aalto University have developed a manufacturing method for electrocatalysts using one hundredth of the usual amount of platinum, reducing costs and increasing functionality. The new material has been proven to be stable and usable in laboratory conditions.
Electrocatalysis can advance green transition
Researchers explore electrocatalysis to transform atmospheric molecules into useful products, such as hydrogen and chemicals, for a sustainable future. Effective catalysts are needed to drive the process, but advancements in theory and experiments hold promise.
Efficient hydrogen production made easy
Researchers at Los Alamos National Laboratory discover a simple chemical treatment using hydrazine to dope electrons into semiconductors, creating one of the best hydrogen-evolution electrocatalysts. This breakthrough has wide potential applications in energy and electronics.
IBS reports a high performance nanoparticle electrocatalyst
Scientists have reported a high-performance nanoparticle electrocatalyst for fuel cells, featuring durable and active PtFe nanoparticles coated with nitrogen-doped carbon shells. This breakthrough could lead to the development of more efficient and affordable fuel cell technology.
Wayne State professor receives prestigious DOE early career grant
Dr. Eranda Nikolla receives $750,000 grant to develop efficient catalysts for oxygen evolution in energy generation and storage
DOE renews Energy Frontier Research Center at PNNL
The Center for Molecular Electrocatalysis will receive $3.5 million annually to explore chemical reactions at the core of solar energy and fuel cells. Researchers from multiple disciplines will work to design faster catalysts, split molecular oxygen, and improve hydrogen reactions.
Oregon researchers shed new light on solar water-splitting process
Researchers used a dual-electrode photoelectrochemistry method to study the flow of electrons at semiconductor-electrocatalyst junctions. They found that thin layers of ion-porous electrocatalyst material work best, reducing energy loss associated with the catalyst-semiconductor interface.
A noble yet simple way to synthesize new metal-free electrocatalysts for oxygen reduction reaction
A Korean research team from Ulsan National Institute of Science and Technology (UNIST) developed a high-performance metal-free electrocatalyst for oxygen reduction reaction using covalently functionalized graphene nanosheets. The new catalyst shows superior stability compared to commercial Pt/C catalysts.
Noble way to low-cost fuel cells, halogenated graphene may replace expensive platinum
Researchers have developed a low-cost metal-free catalyst using edge-halogenated graphene nanoplatelets that shows remarkable electrocatalytic activity for oxygen reduction reaction, higher tolerance to methanol crossover/CO poisoning effects and longer-term stability than platinum-based catalysts.
SourceUlsan National Institute of Science and Technology(UNIST)·JournalScientific Reports·DateJun 5, 2013
High-speed method to aid search for solar energy storage catalysts
A new high-throughput method identifies promising electrocatalysts for water oxidation, enabling the efficient storage of solar energy. The technique uses ultraviolet light and a fluorescent paint to test metal-oxide electrocatalysts, accelerating the discovery process.
Low-cost nanosheet catalyst discovered to split hydrogen from water
Scientists at Brookhaven National Laboratory have developed a new electrocatalyst that efficiently generates hydrogen gas from water without using platinum. The novel nickel-molybdenum-nitride nanosheet catalyst outperforms traditional non-noble metal compounds and has the potential to unlock sustainable energy alternatives.
SourceDOE/Brookhaven National Laboratory·JournalAngewandte Chemie International Edition·DateMay 11, 2012
N.E. Chemcat Corp. licenses Brookhaven Lab's electrocatalyst technology for fuel cells
The new electrocatalysts have high activity, stability, and durability while containing only about one tenth the platinum of conventional catalysts used in fuel cells. This reduction leads to lower costs and environmental benefits by producing no harmful emissions.
New highly stable fuel-cell catalyst gets strength from its nano core
Scientists have developed a new fuel-cell catalyst with a palladium core that protects precious platinum and enhances its reactivity. The new catalyst maintains high levels of activity even after 100,000 cycles of testing, compared to conventional catalysts that lose nearly 70% of their reactivity.
Brookhaven lab scientists stabilize platinum electrocatalysts for use in fuel cells
Researchers at Brookhaven National Laboratory stabilized platinum electrocatalysts using gold clusters, maintaining stability in accelerated tests. This breakthrough raises promising possibilities for synthesizing improved platinum-based catalysts.