Researchers at Tsinghua University Press developed a novel approach to create carbon nanostructures using heat transformation of small organic molecules into porous carbons. This technique eliminates the need for traditional polymer precursors, offering a precise and cost-effective method for producing these versatile materials.
A new method was developed to create a three-dimensional composite lithium anode, addressing key challenges of high energy density and safety hazards. The technique uses thermal infusion and nanosheets to facilitate the infiltration of molten lithium into the composite structure.
A new method for combining platinum with the rare earth element lanthanum as an alloy has been devised to improve the performance and reduce the cost of fuel cells. The development is expected to make it easier to decarbonize heavy transport vehicles that are less amenable to battery power.
Researchers develop high-safety, long-life lithium metal batteries with a new electrolyte that suppresses dendrite formation. The electrolyte delivers excellent electrochemical performance and offers solutions for building high-performance lithium metal batteries.
Electrochemists have identified what makes nitrile additives effective at improving the performance of lithium-ion batteries using a lithium cobalt oxide cathode, opening up new avenues for further battery performance improvements.
Researchers developed a stable seawater oxidation electrolysis platform using a nickel-iron layered double hydride array with benzoate ions, achieving efficient and stable hydrogen production. The platform overcomes the corrosion issues caused by chlorine in seawater, enabling uninterrupted electrolysis for 100 hours.
A team of researchers used electron microscopy to study the charge-transfer and lithium-ion migration mechanisms in commercial lithium-ion batteries. The findings highlight the importance of understanding the inherent physical and chemical properties of battery materials to improve performance.
A research team studied recent advances in perovskite photovoltaic modules, focusing on coating methods and growth regulation for high-quality films. The study aids researchers working towards commercialization of these promising photovoltaic technology.
Researchers have developed a new electrolyte using sulfolane and lithium perchlorate to improve the stability of high-density lithium-ion batteries. This combination enhances conductivity and reduces energy requirements, making it suitable for wide-temperature applications.
Researchers have developed a new display technology using quantum dots that can increase the efficiency and lifespan of LED displays. The new technology uses a single layer of quantum dots as the emissive layer, which can reduce voltage loss and improve light extraction efficiency.
Researchers from Tsinghua University Press developed an electrocatalytic NO reduction reaction method for producing ammonia, achieving high power density and improved faraday efficiency. The new process has the potential to replace traditional methods and reduce greenhouse gas emissions.
The study introduces a new day-to-day traffic assignment model that incorporates bounded rationality, suggesting users consider topological similarity when making travel choices. This leads to the concept of Boundedly Rational User Equilibrium (BRUE), where routes with low cost variations are used.
The Haber-Bosch process has disrupted the planet's nitrogen cycle, warming the globe and risking human health. Researchers propose using electrocatalysis to rebalance the cycle, leveraging heterogeneous nanomaterials for efficient and stable catalysts.
A circular economy model offers a new chance for innovation, integrating natural ecosystems, businesses, and public-private-partnership to reduce environmental pressure. The transition to circular economy utilizes the potential of waste by increasing recycling and reuse.
A research team from Xi'an Jiaotong University developed BiVO4 as an efficient and stable photocatalyst for water splitting applications. The team achieved excellent results using BiVO4 crystals as a photocatalyst, showing the close relationship between surface properties and photocatalytic activity.
A Soochow University team has developed cobalt copper alloy catalysts that deliver outstanding methane activity and selectivity in electrocatalytic carbon dioxide reduction. By modulating the cobalt doping concentration, they achieved a remarkable Faradaic efficiency of 60% to methane at high operating current densities.
The review highlights the need for ultra-compact supercapacitors in the Internet of Things, citing their potential to enable self-powered and wireless micro-electronic systems. However, challenges remain in reducing feature size and improving energy and power density.
Researchers have developed a new method to produce ultrathin layered double hydroxide nanosheets with improved properties, enabling their application in photodetectors. The new technique allows for the creation of large quantities of nanosheets with uniform thickness and broad light absorption range.
Chinese researchers found that chemically modifying common table sugar can stabilize the zinc ion environment and prevent dendrite growth in aqueous zinc batteries. This method enhances mobility, protects the Zn anode from corrosion, and achieves stable Zn dendrite-free deposition.
Researchers explored the potential of osmotic power generation using 2D materials, which can efficiently generate electricity from the concentration difference between seawater and river water. The technology has the potential to produce one terawatt of electricity annually, making it a promising alternative to wind and solar power.
The development of porphyrin-based framework material catalysts could lead to more efficient and cleaner energy conversion processes, addressing the challenge of electrifying hard-to-decarbonize sectors. Porphyrins have been used in biomimetic chemistry and solar energy utilization but face stability and recycling issues.
Researchers from Sichuan University developed a new polymer aerogel with superelasticity that functions in a temperature range of -196-500°C, maintaining multifunctional protective performance. The scalable method uses bidirectionally oriented carbon/carbon aerogel composite multi-walled carbon nanotubes.
Researchers summarize their work on crystal phase engineering for electrocatalysts, exploring how atomic arrangements influence properties and performance. The study suggests that manipulating atoms to form new lattices can lead to better electrocatalysis, paving the way for sustainable energy conversion processes.
Researchers have developed a novel crystalline-amorphous NiO-CrOx electrocatalyst that accelerates the urea oxidation reaction, yielding hydrogen with less energy use than traditional water splitting processes. The catalyst exhibits excellent urea oxidation reaction activity and durability.
A new production method for styrene has been developed by researchers at Tsinghua University, improving the stability and dehydrogenation activity of the process. The method uses fully exposed platinum cluster catalysts, which exhibit high activity and selectivity in producing styrene.
The 13th Five-Year Plan set goals for green building technologies to improve planning and design, energy efficiency, indoor air quality, high-performance structures and materials, and green construction systems. Despite progress, the number of certified buildings remains low, highlighting challenges in implementing these technologies.
Metal-organic frameworks based catalysts offer an alternative to traditional catalysts for hydrogenation of carbon dioxide. Researchers have systematically reviewed various metal-organic frameworks based catalysts for selective hydrogenation of carbon dioxide, identifying their potential in future applications.
Researchers have compared two promising electrolyte systems for lithium-sulfur batteries: highly solvating and sparingly solvating electrolytes. The study suggests that each system excels in different applications, with HSEs suitable for high-power demands and SSEs better suited for long-life cycles.
Researchers have developed a diagnostic device that can identify chemical compounds from breath, sweat, and tears to diagnose diseases. The device uses volatile organic compounds as fingerprints for thousands of illnesses, potentially delivering a revolution in medicine's ability to diagnose and treat illnesses.
Researchers at Shanghai Jiao Tong University developed a new method to prolong the lifetime of hot electrons, allowing for more efficient hydrogen peroxide production using solar light. The combination of rutile titanium dioxide and graphene forms an elevated Schottky barrier, facilitating hot electron injection and preventing backflow.
Researchers developed a novel photocatalyst structure using isolated single atoms of copper in a polymer framework, significantly enhancing catalyst performance for converting CO2 into methane fuel. This breakthrough offers a promising solution for addressing climate change by providing a carbon-neutral alternative to fossil fuels.
The study found substantial variability in total cost of ownership (TCO) across different car segments and user profiles. TCOs are lower for battery electric vehicles (BEVs) without subsidies, making them more attractive to consumers and policymakers.
Researchers developed a new film-forming additive that significantly enhances sodium ion battery performance, resulting in a 52% increase in capacity retention after 100 cycles. The additive improves the stability of hard carbon anodes, leading to improved long cycle performance and potential for commercial use in sodium ion batteries.
Valleytronics researchers develop a novel 2D material that enhances the utility of excitons, leading to potentially faster logic operations and room-temperature quantum computing. The material's interlayer excitons exhibit longer lifetimes than intralayer counterparts, expanding applications in long-life exciton devices.
Researchers combine power conversion and storage capacity into a single device, overcoming previous inefficiencies and costs. The new technology uses six types of photo-enhanced rechargeable metal batteries, offering efficient and scalable solutions for solar energy storage.
Researchers developed a redox mediation strategy to improve lithium–sulfur batteries' sluggish reaction kinetics, enabling practical application. The team created an organic molecule-based redox mediator that promotes sulfur redox kinetics in high-energy-density pouch cells.
A study analyzing over 3 million EV-related Reddit posts reveals a wide spectrum of viewpoints on electric vehicles. The research found high similarities between political and fringe communities, indicating controversial opinions on environmental impacts.
Scientists from Tsinghua University have constructed catalysts using a fluorine-doping method, enhancing their performance in reducing carbon dioxide into valuable chemicals. The researchers found that the fluorine-doping stabilizes Fe3+ sites, improving the catalyst's efficiency and stability.
Researchers developed a way to manufacture idealized two-dimensional semiconductor materials, overcoming the challenge of InAs's 3D lattice structure. The breakthrough enables the creation of ultrathin, flexible, and transparent materials suitable for next-generation electronics and optoelectronics.
A new technique, SA-MDP, has been developed to solve the sensitive association rule problem in data mining. It uses a customized particle swarm optimization algorithm to balance data utility and privacy, and introduces particle splitting and preprocessing mechanisms to improve exploration and speed.
Nanomaterials may hold key to reducing cardiovascular disease deaths, according to researchers at Peking University in China. The unique properties of nanomaterials make them an appealing option for wearable and implantable monitoring and treatment devices.
Researchers developed perovskite quantum dot microarrays to achieve better results in full-color light-emitting devices and expand potential applications. The technique resolves challenges such as optical crosstalk and aggregation of quantum dots, increasing pixel thickness and efficiency.
A team of researchers has proposed an atomic terminated concept to design a facet <em>single-crystal architecture</em> for Li-S batteries, harvesting high-density/efficient surface active sites to significantly boost electrocatalyst performance. They achieved a high efficient surface-active sites concentration of more than 69 percent, ...
Researchers demonstrated how heterogeneous photocatalysis can improve selectivity in organic transformations, breaking down lignin and producing high-quality products. The technique offers mild conditions for chemical reactions, using air as the oxidant and ambient pressure, reducing energy consumption and environmental cost.
A study in Macao explores the potential for urban mining, analyzing building material stock-flow process and future trends. The research establishes a dynamic MFA model to clarify driving forces of urban building resources, providing data support for recycling and waste management.
A new technique has been developed to upscale the production of perovskite solar cells, facilitating their commercialization. The self-assembled monolayer process enables large-area coating and promotes efficient device performance by eliminating interfacial voids.
Researchers at MIT City Science explore the impact of autonomy on shared micro-mobility systems, proposing it as a solution to mitigate challenges such as rebalancing and vehicle oversupply. An agent-based simulation tool assesses fleet performance and user experience, providing insights for informed decisions.
The circular economy faces challenges in implementing international policies due to spatiotemporal dimensions of environmental risk and variability of global policies. The article proposes ways forward for anthropogenic circularity, including controlling toxic releases, international flow of materials, and harmonization of internationa...
Researchers at Tsinghua University have discovered that Metformin, a small molecule drug used to treat type II diabetes, can improve the efficiency and efficacy of antibacterial treatments. The new approach uses chemodynamic therapy nanoagents to produce hydroxyl radical, which weakens and kills diseased or infected cells.
Researchers at Tsinghua University Press have developed a novel solution to recycle excavated soil and rock into construction products through sintering utilization. The study found that using this method can save nearly 270 million yuan in disposal costs while meeting environmental standards.