Articles tagged with Electrocatalysis
Researchers at Tohoku University's AIMR developed carbon-supported blue-pigment catalysts for anion-exchange membrane fuel cells, achieving high power density without platinum. The team optimized the pigments' molecular structures to strengthen the interaction at the active site, translating to real gains in fuel cell performance.
Researchers develop COF-based oxygen electrocatalysts with controlled active sites, electronic structure, and mass transport, achieving high performance and selectivity. The review highlights molecular-level tunability and theoretical design approaches to optimize oxygen-intermediate adsorption and reaction pathways.
Researchers developed a highly durable electrocatalyst for seawater oxidation using high-entropy selenide materials with integrated dual-protection mechanisms. The catalyst sustained over 1000 hours of stable oxygen evolution with excellent catalytic kinetics and selectivity.
Researchers developed a copper phthalocyanine catalyst from an inexpensive blue pigment that efficiently converts CO₂ into methane in a single electrochemical step. The system achieved high current density and Faradaic efficiency, demonstrating improved selectivity and durability compared to conventional catalysts.
Researchers have found that nano-biochar can rapidly transform silver ions into silver nanoparticles under alkaline conditions, with superoxide radicals playing a key role in the process. The study also showed that the structure of nano-biochar and pH conditions can control metal transformations in water.
Researchers developed a cobalt-based catalyst that efficiently promotes oxygen reduction and evolution reactions in zinc-air batteries. The catalyst's curved carbon support and cobalt nanoparticles work together to improve oxygen electrocatalysis, enabling long-term bifunctional performance.
Researchers developed an AI assistant called ChatHEA to guide the discovery of new catalysts for clean energy technologies. The team screened and evaluated 100 five-element high-entropy alloy catalysts, finding that FeCoCuPtIr showed excellent oxygen reduction activity and durability.
A new review highlights the potential of biochar's intrinsic redox properties to enhance pollutant degradation, microbial processes, and energy recovery. Biochar can act like an electron shuttle or buffer, transferring electrons more efficiently than highly conductive materials in stressed environments.
A new iron-modified biochar catalyst activates natural oxygen and iron cycling in farmland soil, breaking down sulfamethoxazole at a 4.2-fold increase under laboratory conditions. The material also achieved strong pollutant removal, with degradation reaching 81.2% under favorable soil moisture conditions.
Applying a magnetic field during catalyst synthesis triples the ammonia yield, making catalytically active sites more accessible. The study demonstrates a scalable strategy for developing next-generation electrocatalysts for efficient and sustainable chemical production.
The article discusses how materials chemistry is transforming the synthesis of electrocatalysts, enabling more efficient and sustainable energy conversion. Researchers highlight the importance of controlling material properties during synthesis to predict and reproduce desired outcomes.
Researchers developed a Pt–CuOx interfacial catalyst that converts HMF to FDCA at significantly lower voltages, achieving 99.1% FDCA selectivity and 93.8% yield. The optimized catalyst demonstrated excellent durability, maintaining over 90% selectivity for more than 110 hours.
Self-activating catalysts continuously improve during operation due to material reorganization and surface interactions with water and electrodes. The researchers outline future directions to accelerate sustainable hydrogen production, including standardized protocols and new approaches like seawater electrolysis.
Researchers create bifunctional electrocatalyst with cobalt phosphide heterojunctions for efficient water splitting, rivaling expensive commercial catalysts. The innovative architecture enables stable hydrogen production at a fraction of the cost.
Researchers highlight biochar's ability to outperform conventional materials in driving chemical reactions that break down pollutants and support energy-producing microbial processes. Biochar's intrinsic redox properties enable it to act as an electron shuttle, accelerating reactions.
A new study reveals how an advanced iron-modified biochar can harness the natural chemistry of soils to break down persistent antibiotic contaminants. The biochar activates naturally occurring oxygen in soils to generate highly reactive hydroxyl radicals, enabling the in situ degradation of contaminants without external chemical inputs.
Researchers develop a novel 'steric hindrance' strategy to boost the performance of single-atom catalysts in oxygen reduction reactions. The approach uses metalloporphyrins with bulky groups to prevent atomic agglomeration and ensure high efficiency.
A University of Virginia researcher is developing an alternative method to remove nitrate from wastewater by converting it into valuable chemical products. The project uses electrocatalysis and modulation excitation spectroscopy to optimize the conversion process, aiming to reduce energy consumption and environmental impact.
Researchers from Southeast University and Nanjing Normal University create supercapacitor technology using plant waste, enabling rapid-charging energy storage at 4.0 volts. The innovative approach combines a custom electrode with a specialized electrolyte to stabilize the system.
Researchers engineered a dual metal modified biochar composite to enhance microbial electrochemical interactions and increase hydrogen yield. The study demonstrates the potential of biochar as an efficient electron mediator in light driven fermentation systems.
Researchers developed a low-cost, eco-friendly sensor using biochar from sewage treatment plant sludge to detect trace levels of trimethoprim in water and pharmaceutical samples. The device offers a sustainable way to monitor antibiotic pollution.
Researchers have introduced a spatial-adaptive active-learning workflow to accelerate search for highly durable OER catalysts. The new method optimizes two objectives sequentially within a unified framework, identifying a Cu-RuO2 catalyst with exceptional performance and long-term stability.
In situ EC-SERS captures fingerprint vibrational signals of trace and transient interfacial species under operational conditions. This technique reveals how electrocatalyst properties and interfacial environments govern fuel cell, water electrolysis, and CO2RR related reactions.
Researchers at Tohoku University and Indian Institute of Technology Indore developed a Cu14 nanocluster with a single exposed Cu site, exhibiting high ammonia selectivity and production rate. The findings support the creation of efficient metal nanocluster catalysts for green energy production.
Researchers developed a novel lead-doped ruthenium-iridium oxide catalyst for oxygen evolution reactions in proton exchange membrane water electrolyzers, surpassing commercial IrO₂ and RuO₂ electrodes. The catalyst enables efficient and durable operation at high current densities, reducing precious metal consumption.
Researchers have discovered that certain seawater ions can be intentionally utilized to enhance electrochemical performance, rather than hindering it. This involves carefully designing catalysts and electrolytes to mitigate the negative effects of these ions while maximizing their benefits.
A new study reveals that the strength of carbon monoxide adsorption energy relies on a mix of reaction factors, including catalyst material and voltage. This insight can guide the design of more efficient catalysts to convert CO2 into useful fuels like methanol and ethanol.
Researchers at Shinshu University developed a novel copper-cobalt oxide composite that excels in energy storage, environmental remediation and water splitting. The material boasts high specific capacitance, exceptional stability and numerous active catalytic sites, making it a promising low-cost alternative to conventional catalysts.
Researchers identified reconstruction mechanism of copper alloy catalysts during electrochemical CO₂ conversion reactions. The findings provide a 'design map' for understanding and predicting surface reconstruction, enabling the design of dynamic catalysts that adapt during operation.
Researchers found that highly conductive biochar produces up to 69% more methane in rice soils due to faster electron transfer. The study highlights the importance of biochar's physical properties in determining its impact on greenhouse gas emissions.
Converting waste carbon dioxide (CO2) and carbon monoxide (CO) into propanol offers a promising strategy for a sustainable energy future. Propanol has high energy density and is used in fuels, chemicals, and pharmaceuticals, making it an attractive target for green synthesis.
Researchers at Tohoku University found that C60 fullerene can serve as an active catalytic site for CO2 electroreduction, improving the efficiency of reactions like hydrogen evolution and carbon dioxide reduction. The discovery opens new possibilities for designing efficient, metal-free catalysts to combat climate change.
Researchers introduce a novel electrocatalyst design strategy using chemical fermentation, creating a multilevel porous carbon architecture embedded with Ni–Fe alloy nanoparticles. This approach achieves ultra-efficient oxygen evolution reaction performance, with a record-low overpotential of 165 mV at 10 mA cm−2.
A new copper-based catalyst with added cobalt dopants significantly reduces energy consumption in converting CO₂ to ethylene. The process delivers high ethylene output with over 25% energy efficiency and remains stable over long periods.
Researchers have developed metal-based Janus nanostructures that boost CO2 reduction via tandem electrocatalysis. These structures exhibit unique properties and mechanisms, enabling the generation of single-carbon and multi-carbon products.
Researchers developed amorphous Ni-Fe mixed oxides using sol-gel method to enhance oxygen evolution reaction (OER) activity and operational durability in anion exchange membrane water electrolyzers (AEMWEs). The material demonstrated optimal OER performance, achieving a low overpotential of 291 mV and remarkable stability.
A recent article reviews the integration of data science into electrocatalysis, accelerating the design of high-performance catalysts. The combination of low-dimensional and high-dimensional analytics is providing deeper insights into structure-property relationships.
The review elucidates fundamental principles of tandem catalysis, presenting design strategies for multifunctional catalysts or cascade reactors. It analyzes cutting-edge advancements in multiscale tandem methodologies, including compositional engineering and hydrodynamic modulation.
A new electrocatalytic sterilization method has been introduced using copper oxide nanowires to produce highly alkaline microenvironments that efficiently kill bacteria. Most conventional disinfection methods have disadvantages such as harmful by-products and high energy consumption.
Researchers have developed cost-effective and efficient water-splitting catalysts using cobalt and tungsten, which surprisingly increase in performance over time. The unique self-optimization process involves changes in the chemical nature of the catalyzing oxide, leading to improved activity and reduced overpotentials.
Researchers have developed a novel electrochemistry approach to build new molecules using micelles from naturally occurring amino acids and coconut oil. This breakthrough method could reduce the cost of making medicines by combining solvents, electrolytes, and reaction boosters into one simple tool.
Recent developments in bismuth-based catalysts for electrochemical CO2 reduction to formate highlight their potential as a promising strategy. Advances include the use of innovative synthesis techniques and engineering to attain high cathodic current densities.
A study by the Advanced Institute for Materials Research found that tin monoxide (SnO) electrocatalysts can produce both formic acid and carbon monoxide in significant amounts. The research team identified key structural changes that influence product distribution, providing insights into optimizing electrocatalyst performance.
Researchers developed two silver-based bimetallic clusters that increase Faradaic efficiency and yield of urea through charge polarization modulation. Ag14Pd outperforms Ag13Au5 in NO3RR, while Ag13Au5 excels in CO2RR with higher urea formation rates.
Researchers uncover a novel reaction pathway in weak-binding metal-nitrogen-carbon single-atom catalysts, contradicting the traditional Sabatier principle. This discovery offers new insights into their exceptional catalytic behavior.
Researchers developed a sustainable catalyst converting CO2 into valuable products, increasing activity during use. The discovery offers a blueprint for designing next-generation electrocatalysts with high selectivity and stability.
Researchers have successfully combined electrocatalysis and biocatalysis to produce methanol from carbon dioxide. The hybrid process uses enzymes to catalyze the final steps, achieving high selectivity and efficiency.
A breakthrough in electrochemical CO2 reduction processes has been achieved through ligand engineering of copper nanoclusters. The study reveals that variations in intercluster interactions significantly impact the stability and selectivity of these nanoclusters, leading to more efficient carbon conversion technologies.
Researchers at HZB developed a new P2X catalyst requiring less iridium than commercial materials, showing remarkable stability and different mechanisms for oxygen evolution. The study provides valuable information about catalyst performance and stability.
The study proposes a strategy to use spinel oxides, particularly those involving rare-earth cerium substitution, to improve the oxygen evolution reaction. The team found that adding Ce promotes the lattice oxygen pathway, leading to highly active spinel oxide catalysts for electrochemical reactions.
Researchers developed a novel catalyst with integrated magnetic field, achieving 90% H2O2 production efficiency and significantly enhancing the reaction's performance. The new approach requires minimal amounts of magnetic materials, making it safer and more practical for large-scale applications.
Researchers have developed a novel electro-biodiesel process that is 45 times more efficient than traditional biodiesel production, using 45 times less land. The process converts CO2 into biocompatible intermediates and lipids, resulting in negative emissions and potential for widespread adoption.
A German research team has developed an electrocatalytic method for efficient degradation of polystyrene plastic waste, producing monomeric benzoyl products and short polymer chains. The process uses an inexpensive iron catalyst and can be powered by solar panels, combining recycling with green hydrogen production.
A team of scientists at Johannes Gutenberg University Mainz has developed an electrocatalytic conversion technique that converts carbon dioxide into ethanol. The cobalt-copper tandem system achieves selective conversion with an 80% yield, opening up a sustainable method for chemical applications and food conservation.
The study demonstrates the exceptional efficiency of layered high-entropy sulfides in boosting electrocatalytic performance for hydrogen evolution reaction. The introduction of molybdenum into the composition creates a unique layered structure that increases the material's surface area and enhances its catalytic efficiency.
Researchers have discovered various ways to optimize electrocatalytic reduction reactions by tuning the type and concentration of cations, improving their activity, selectivity, and efficiency. The study provides a comprehensive overview of cation effects on catalytic reduction reactions, highlighting both opportunities and challenges.
Researchers developed a novel electrocatalytic strategy for solid-state lithium-ion batteries, overcoming the limitation of liquid-solid interfaces. The new approach enhances reaction dynamics and creates highly active sites, leading to impressive ultrafast-charging performance.
Researchers from Tokyo Institute of Technology have developed a novel screening methodology using machine learning to identify key design guidelines for ternary metal sulfide electrocatalysts. Focusing on crystal structure leads to better results, overcoming challenges in material properties and electrochemical performance analysis.
Researchers discovered Co3O4 as the most effective cobalt oxide electrocatalyst for quinoline hydrogenation, achieving high conversion rates under ambient conditions. This study advances understanding of catalytic mechanisms in the process, which has significant implications for pharmaceutical and petrochemical industries.
Dr. Abdoulaye Djire, a Texas A&M chemical engineer, has received the Army Research Office Early Career Award for his research on electrochemical ammonia production. His project aims to develop more efficient and environmentally friendly methods for producing ammonia using 2D nanostructured nitride MXenes.