Articles tagged with Ammonia
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The review synthesizes over a decade of research on ammonia inhibition in anaerobic digestion, highlighting emerging tools to stabilize biogas production from nitrogen-rich wastes. Biological and material-based solutions, digital technologies, and synthetic biology are discussed as potential mitigations.
The Rice University team, led by Naomi Halas and Peter Nordlander, has been recognized for its work on advancing light-driven technologies for sustainable ammonia synthesis. The project aims to improve light-based catalysts and reactor prototypes while scaling up sustainable production processes.
Researchers have developed a new way to produce ammonia, a common fertilizer, that is cleaner and more efficient than traditional methods. The process uses calcium nitride and hydrogen atoms to create ammonia without emitting carbon dioxide, and can be scaled up for widespread use.
MIT Energy Initiative researchers developed the largest combined dataset on global ammonia supply chains, examining economic and environmental impact of different scenarios. The study found that a full transition to clean ammonia production could cut greenhouse gas emissions by nearly 71% for a 23.2% cost increase.
Researchers developed a copper-palladium bimetallic catalyst that produces high-quality ammonia through an electrochemical nitrate reduction reaction. The catalyst's dynamic Cu-PdH x interface sites exhibit superior intrinsic activity, achieving remarkable production rates and durability.
A comprehensive review outlines how ammonia disrupts biogas production and identifies practical strategies to prevent system failure. Emerging solutions include the integration of artificial intelligence and machine learning into digester monitoring.
Researchers from Tokyo Metropolitan University reveal how copper particles create in mid-reaction, converting nitrite ions to ammonia. This insight promises leaps forward in developing new industrial chemistry for greener ammonia production.
A global study found that biochar significantly reduces methane and nitrous oxide emissions in composting, while conserving nitrogen and stabilizing carbon. The optimal amount of biochar added is critical, with 10-20% achieving the strongest reductions.
A team of researchers from Worcester Polytechnic Institute has developed a new approach to producing hydrogen using plasma technology and metal alloys. The method reduces energy consumption and carbon emissions compared to traditional methods, making it more environmentally friendly and potentially affordable.
A research team at Tohoku University has developed a new method to convert harmful nitrate pollutants in water into ammonia using NiCuFe-layered double hydroxide catalysts. The study achieved a Faradaic efficiency of 94.8% and demonstrated the efficacy of the process in real-world applications.
A new way to produce ammonia more efficiently has been discovered by boosting its production using low-temperature plasma. This method could create ammonia in smaller facilities closer to where it is needed, making it safer and easier to transport, and potentially leading to a transformative change in energy storage and transportation.
Researchers at RIKEN have developed a mechanochemical method to increase hydrogen saturation in perovskite powder, doubling its capacity. This discovery has significant implications for environmental sustainability and the potential for a hydrogen-based economy, as it enables more efficient production of ammonia fertilizer.
Researchers unveiled the link between solid electrolyte interphase structure and nitrogen reduction to ammonia, a promising eco-friendly approach to fertilizer production. The study reveals that ethanol-to-water ratio in the electrolyte significantly impacts ammonia conversion efficiency.
Scientists have developed a molecular uranium catalyst that can bind nitrogen gas in a 'side-on' way and convert it into ammonia. This breakthrough reveals a new catalytic pathway, bridging biological efficiency and industrial feasibility.
Researchers have developed new artificial nitrite reductases that can precisely generate nitric oxide under conditions relevant to medicine, food safety, and environmental protection. These synthetic catalysts promise low-cost supplements for hypertension or ischemia and precise antibiofilm treatments.
University of Sydney researchers have developed a method to produce ammonia in gas form using electricity, offering a more sustainable alternative to the current Haber-Bosch process. This new approach reduces energy consumption and greenhouse gas emissions, making it a promising solution for the agricultural and hydrogen industries.
Researchers have developed a more efficient method for producing green ammonia using artificial intelligence and machine learning. The new process achieves a sevenfold improvement in production rate while being nearly 100% efficient, making it a viable alternative to traditional methods.
Researchers at the University of Tokyo have successfully produced green ammonia using sunlight and atmospheric nitrogen, mirroring natural processes found in plants. The process uses two catalysts, one based on molybdenum and another on iridium, to activate water molecules and produce ammonia.
Planetary scientists confirmed that Jupiter's mushball hailstorms occur due to unmixing of ammonia and water in the upper atmosphere. The storms are accompanied by fierce lightning and can punch through shallow weather systems, challenging long-held assumptions about gas giant atmospheres.
Researchers propose that microlightning in water droplets, rather than lightning strikes, sparked the formation of organic molecules with carbon-nitrogen bonds. This new mechanism suggests a more plausible explanation for the origin of life on Earth, overcoming criticisms of the Miller-Urey hypothesis.
A research group from Dalian Institute of Chemical Physics achieves electrosynthesis of ammonia from NO in a pressurized electrolyzer with ampere-level current density and long-term stability. The method uses an in situ-grown hierarchical porous copper nanowire array electrode to regulate the kinetics and thermodynamics of the reaction.
Researchers found that functionalizing graphene sheets via plasma treatment can lead to enhanced sensitivity for specific gases, such as ammonia. The study discovered different types of defects created on the graphene sheets depending on the gas used during plasma treatment.
Researchers unveil Ba-Si orthosilicate oxynitride-hydride as a transition metal-free catalyst, offering a more sustainable approach to ammonia production. The novel catalyst demonstrates exceptional stability and higher activity than conventional ruthenium-loaded MgO catalysts.
Researchers at Osaka Metropolitan University have synthesized a biodegradable nylon precursor through artificial photosynthesis, producing an eco-friendly alternative plastic. The breakthrough utilizes L-alanine and ammonia to create raw materials for a nylon-type biodegradable plastic.
Researchers have developed a sustainable alternative to traditional fertilizer production by harnessing the Earth's natural heat and forces to cook up ammonia. The new recipe uses iron-rich rocks and nitrogen-laced water, producing about 1.8 kg of ammonia per ton of olivine, with no energy input or CO2 emission.
Researchers create a novel material consisting of nanosized ruthenium clusters anchored on graphitized carbon that reacts with ammonia molecules to produce hydrogen and nitrogen. The catalyst becomes more active over time due to atomic-level transformations, enhancing hydrogen production from ammonia.
Amateur astronomers, led by Dr. Steven Hill, used a simple analytical method to map ammonia and cloud heights in Jupiter's atmosphere. They found that the primary clouds are likely composed of ammonium hydrosulphide, not ammonia ice, due to photochemical reactions.
Researchers at University at Buffalo have developed a plasma-electrochemical reactor that produces ammonia from nitrogen in the air and water, with no carbon footprint. The process uses renewable electricity and can be scaled up to meet industrial demands.
Researchers at Stanford University developed a prototype device that can produce ammonia from water vapor and nitrogen in the air using wind energy. The technology has the potential to eliminate the need for a century-old method of producing ammonia, which consumes 2% of global energy and contributes 1% of annual carbon dioxide emissions.
Researchers from Ruhr University Bochum have gained new insights into the operation of an iron catalyst that can split ammonia into nitrogen and hydrogen. The team's findings enable more efficient catalysts for ammonia decomposition, paving the way for a promising energy carrier transport solution.
Researchers at Waseda University developed a novel process for converting ammonia into green hydrogen gas at low temperatures using an electric field and Ru/CeO2 catalyst. The study successfully achieved 100% conversion rate at 398K, surpassing the equilibrium conversion rate.
Researchers at Nagoya University found that Eiffinger's tree frog tadpoles store ammonia in their bodies, excreting less waste into the environment. This adaptation allows them to thrive in small water bodies with limited space and few predators.
Researchers at RMIT University have developed a low-carbon approach to producing ammonia, which is used in fertilizers and as a carrier for hydrogen. The new method uses liquid metal catalysts, reducing energy consumption by 20% and carbon emissions by 98%. This could significantly reduce the environmental impact of agriculture and sup...
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.
Researchers at Tohoku University's AIMR have developed a copper-based catalyst for nitrate reduction to ammonia, achieving a significant enhancement in yield and Faraday efficiency. The catalyst's performance is attributed to structural and phase changes during the electrochemical reduction process.
Researchers explore key interaction sites and pathways in advanced materials for efficient ammonia capture. Functional absorbents, porous solid adsorbents and membrane materials are reviewed for their properties and potential applications.
Researchers have developed catalysts that achieve high ammonia Faradaic efficiency and yield rate, transforming nitrate into valuable ammonia. The study's findings provide insights into structural changes on spinel cobalt oxides, enabling more efficient and sustainable industrial processes.
A Rice-built reactor system can convert nitrates into green ammonia and purified water, decarbonizing ammonia production and treating nitrate-contaminated water. The innovative three-chamber system uses recyclable ions to improve reaction efficiency and eliminates the need for high concentrations of supporting electrolytes.
Researchers developed an effective catalyst that significantly enhances ammonia conversion efficiency, offering potential for wastewater treatment and hydrogen production. The catalyst's design allows it to operate at lower voltages, producing less harmful substances like nitrite and nitrate.
A research team at Iowa State University has developed artificial intelligence technology that can model and understand complex chemical reactions, including those involved in ammonia production. The technology uses reinforcement learning to identify the optimal reaction pathway, promising to reduce production costs and emissions.
Researchers at Nagoya University have developed an ammonia-free technique for producing GaN semiconductors, enabling high-quality growth at lower temperatures and reduced raw material consumption. This method also reduces the need for detoxifying systems and energy expenditure.
Researchers developed a crystalline solid that can adsorb and release ammonia, making it easy to recover. The material's high density and ease of desorption make it a promising solution for efficient hydrogen storage.
A research team at Ruhr University Bochum has developed a catalyst that can convert ammonia into hydrogen and nitrite, producing both a clean energy carrier and a fertilizer precursor simultaneously. The process doubles the hydrogen yield while minimizing nitrogen production.
Burning ammonia for maritime fuel could worsen air quality and lead to devastating public health impacts, even with cleaner engine technology and green production methods. The study suggests that stronger regulations could reduce premature deaths from 600,000 to 66,000 annually
Scientists developed an AI-powered system to track tiny devices that monitor markers of disease in the gut. The system includes a wearable coil and ingestible pill with optical gas-sensing membranes, pinpointing device location and measuring gases like ammonia. Future improvements aim to make the device smaller and more power-efficient.
Scientists from the Department of Energy's Lawrence Berkeley National Laboratory have discovered a new way to produce ammonia, an essential fertilizer and component of cleaning products, using rare-earth metals as catalysts. The process operates at ambient conditions, reducing energy consumption and promoting food security.
Researchers in Beijing found that combustion-related ammonia is a key contributor to ammonium in PM2.5 during severe haze pollution in winter. Most of these emissions come from local sources, including fossil fuels and biomass burning.
A new study suggests that ammonia could be a smart and energy-efficient fuel in the race to achieve net zero in shipping. The NTNU researchers' model shows that IMO's ambitions have a strong impact on shipowners' choice of propulsion systems.
Researchers have discovered a greener way to produce ammonia, essential for fertilizers, by developing a new catalyst that works stably at relatively low temperatures. This breakthrough reduces the amount of energy needed to synthesize ammonia, making it an attractive alternative to fossil fuels.
University of Illinois Chicago engineers have developed a new ammonia production process that meets several green targets. The process combines nitrogen gas and ethanol with a charged lithium electrode, producing ammonia at low temperatures and regenerating materials with each cycle. If scaled up, the process could produce ammonia at 6...
Researchers at Tohoku University's AIMR have developed a novel approach to electrocatalytic ammonia synthesis, utilizing transition metal disulfides as catalysts. The breakthrough relies on the in-situ generation of S-vacancies on the catalyst surface, significantly enhancing nitrogen reduction activity.
Researchers at a FAPESP-supported research center have developed an electrochemical nitrogen reduction process using iron oxide and molybdenum disulfide catalysts. This method eliminates the need for high temperatures and pressures, reducing power consumption and greenhouse gas emissions.
Researchers propose an ammonia induction strategy to improve the sulfur capacity of zeolite-based adsorbents, enhancing desulfurization performance in blast furnace gas. The method inhibits agglomeration, increases dispersibility, and improves diffusion of H2S, resulting in higher adsorption rates.
Researchers used HLRS's Hawk supercomputer to generate valuable thermodynamic data for chemical engineering research. The simulations provide insights into ammonia's fundamental properties and how they change when mixing with other molecules.
Researchers at Sophia University have optimized air–fuel mixing conditions for efficient ammonia combustion in engines, bringing us closer to viable ammonia-fueled vehicles. Swirling flow patterns promote better air and fuel mixing, leading to improved combustion and reduced emissions.
Researchers have identified two essential ferredoxins that play a key role in determining the performance of iron nitrogenase. The discovery opens up new possibilities for elucidating and maximizing nitrogenase's potential, which could lead to sustainable enzymatic production of ammonia and carbon compounds.
A study from Chalmers University of Technology found that the production and use of ammonia as a marine fuel can lead to eutrophication, acidification, and emissions of potent greenhouse gases. Researchers warn that the pursuit of low-carbon fuels may create new environmental challenges.
Novel research by University of Oklahoma-led team improves understanding of ammonia oxidation, a critical component of the global nitrogen cycle. Different AOM lineages employ varying regulatory strategies to minimize competition, allowing coexistence in the same environment.
Researchers created an AI-enabled model to help mitigate global ammonia emissions from agriculture. By optimizing fertilizer management, the model can effectively reduce emissions by up to 38%, with Asia having the highest potential for reduction.
Researchers at Stockholm University have successfully studied the surface of iron and ruthenium catalysts during ammonia production, shedding light on the reaction mechanism. The findings open up possibilities for developing more efficient materials, which could contribute to a green transition in the chemical industry.