/ en-us 糖心视频 internet news portal provides the latest news on science including: 糖心视频ics, 糖心视频, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Metallic nanoparticles, consisting of a few to several thousand atoms or simple molecules, are attracting significant interest. Electrodes coated with layers of nanoparticles (nanolayers) are particularly useful in areas such as energy production, serving as catalysts. /news/2024-11-nanostructures-imaging-techniques-unveil-secrets.html Nanophysics Nanomaterials Wed, 13 Nov 2024 11:11:05 EST news650718662 As global demand for electrochemical electrodes continues to rise, a new trend has emerged, emphasizing the need to maintain ion diffusion efficiency while accommodating ultra-high loadings of active materials to enhance capacity and energy density. In three-dimensional space, structured electrodes with high porosity and low tortuosity have proven effective in improving the performance of various electrochemical energy storage devices (EESDs). /news/2024-09-ion-diffusion-kinetics-interpenetrated-electrochemical.html Nanophysics Nanomaterials Wed, 18 Sep 2024 16:22:03 EDT news645895321 Glycerol is a key byproduct of biodiesel fabrication, and its production has increased proportionally with the growth of biodiesel production. Glycerol electrooxidation is considered as an innovative strategy due to its low theoretical potential and the elimination of the need for external toxic oxidative agents, pressurized oxygen, and high temperature. /news/2024-09-efficient-electro-oxidation-glycerol-formate.html Analytical Chemistry Materials Science Thu, 12 Sep 2024 16:15:04 EDT news645376500 As the world shifts towards a more sustainable future, the development of advanced electrochemical devices, such as rechargeable batteries with higher energy densities and efficient electrodeposition capabilities, has become increasingly crucial. In recent years, ultra-concentrated electrolyte solutions, where metal salts are dissolved at concentrations two to three times higher than those in a single solvent, or mixtures where metal salts are excessively dissolved in a single solvent, have gained attention as new electrolyte solutions. /news/2024-09-glass-liquid-electrolyte-transition-broad.html Analytical Chemistry Materials Science Wed, 04 Sep 2024 04:52:09 EDT news644644326 A multi-institutional team of chemists, metallurgists and engineers has developed a highly efficient way to retrieve silver from dead solar panels. Their paper is published in Environmental Technology & Innovation. /news/2024-08-recover-silver-dead-solar-panels.html Analytical Chemistry Materials Science Wed, 28 Aug 2024 11:10:01 EDT news644060774 New research from Northwestern University has systematically proven that a mild zap of electricity can strengthen a marine coastline for generations鈥攇reatly reducing the threat of erosion in the face of climate change and rising sea levels. /news/2024-08-coastal-erosion-electricity.html Earth Sciences Thu, 22 Aug 2024 05:00:01 EDT news643470182 Coupling electrochemical conversion of the greenhouse gas CO2 with renewable electricity sources鈥攕uch as solar and wind鈥攑romises green production of high-demand chemicals and transportation fuels. Carbon dioxide coupling products such as ethylene, ethanol and acetic acid are particularly useful as feedstocks for the chemical industry and powering vehicles. /news/2024-08-chemical-industries-boost-catalyst-coating.html Materials Science Thu, 01 Aug 2024 11:58:13 EDT news641732290 Environmental pollution by heavy metals is a major social problem. Among these metals, mercury (Hg) is strictly controlled due to its high toxicity. Focusing on soil, which is closely related to our daily lives, the environmental standard for mercury is set at less than 0.5 碌g/L (碌g is a unit of 1 millionth of a gram). /news/2024-07-high-sensitivity-technique-mercury-soil.html Nanomaterials Mon, 29 Jul 2024 09:05:34 EDT news641462729 A research team led by Prof. Chen Changlun from the Hefei Institutes of 糖心视频ical Science of the Chinese Academy of Sciences, together with collaborators, developed advanced cobalt-doped nickel hydroxide bipolar electrodes and non-noble metal catalysts, which significantly improved the efficiency and stability of two-step water electrolysis for hydrogen production. /news/2024-07-electrolysis-hydrogen-production.html Analytical Chemistry Materials Science Mon, 08 Jul 2024 10:36:02 EDT news639653761 Research conducted in Brazil at the Center for Development of Functional Materials (CDMF) and the Center for Innovation in New Energies (CINE) has developed a novel approach to the plasma treatment of antimony tri-selenide (Sb2Se3) films that makes their surface hydrophilic, i.e. attracted to water molecules and easily dissolved by water, instead of hydrophobic (repelled by water). /news/2024-05-material-solar-driven-hydrogen.html Materials Science Thu, 16 May 2024 16:32:39 EDT news635095955 Nanostructured high entropy alloys鈥攎etals made from a chaotic mix of several different elements鈥攕how a lot of promise for use in industries such as aerospace and automotive because of their strength and stability at high temperatures compared with regular metals. /news/2024-05-commercially-viable-class-metals.html Nanomaterials Tue, 07 May 2024 15:06:57 EDT news634313214 Ammonia is one of the most widely produced chemicals in the world, and is used in a great many manufacturing and service industries. The conventional production technology is the Haber-Bosch process, which combines nitrogen gas (N2) and hydrogen gas (H2) in a reactor in the presence of a catalyst. /news/2024-03-scientists-catalyst-ammonia-production-sustainable.html Analytical Chemistry Materials Science Thu, 21 Mar 2024 17:25:11 EDT news630260709 Hydrogen (H2) is considered a possible alternative to fossil fuels, which are responsible for a large proportion of atmospheric emissions and global warming, but production costs must be lowered if it is to become a viable option. /news/2024-03-brazilian-scientists-material-hydrogen-production.html Analytical Chemistry Materials Science Wed, 13 Mar 2024 11:58:03 EDT news629549881 A research team led by Professor Wang Qi from Hefei Institutes of 糖心视频ical Science, Chinese Academy of Sciences, has successfully synthesized a heterogeneous Ce@CoFe-LDH electrocatalyst by combining a simple hydrothermal method with rapid electrodeposition. /news/2024-03-urchin-cofe-layered-hydroxide-high.html Analytical Chemistry Materials Science Thu, 07 Mar 2024 16:04:11 EST news629049849 Hematite (伪-Fe2O3) is considered one of the most promising materials for photoelectrochemical (PEC) water splitting under solar light. However, the drawbacks of lower charge transfer efficiency and slow oxygen evolution reaction (OER) kinetics limit the practical application of 伪-Fe2O3 photoanodes. Therefore, efforts have been made to promote the PEC properties of 伪-Fe2O3, such as elemental doping, morphology modulation, and construction of heterojunctions. /news/2023-09-photoanode-multilayered-nanostructure-efficient-photoelectrochemical.html Nanomaterials Tue, 05 Sep 2023 12:59:09 EDT news613137547 In a review led by Prof. Chunyi Zhi (City University of Hong Kong) and published in the journal Science China Chemistry, researchers focused on the current advances in the development of MOF/COF-based materials for ARZIBs, including the material design of MOFs/COFs, the storage mechanism of Zn2+ in MOFs/COFs, the use of MOFs/COFs to control the deposition behavior of Zn2+, and the use of MOFs/COFs as separators and solid electrolytes. /news/2023-07-metalcovalent-frameworks-aqueous-rechargeable-zinc-ion.html Analytical Chemistry Materials Science Thu, 06 Jul 2023 16:20:03 EDT news607879202 Nanoscientists have developed a wearable textile that can convert body movement into useable electricity and even store that energy. The fabric potentially has a wide range of applications from medical monitoring to assisting athletes and their coaches in tracking their performance, as well as smart displays on clothing. /news/2023-06-wearable-textile-captures-energy-body.html Nanomaterials Mon, 05 Jun 2023 15:30:04 EDT news605197802 Carbon dioxide (CO2) is a major greenhouse gas emitted through various types of human activities. In an effort to decrease humanity's carbon footprint, scientists and policymakers across the globe are continuously trying to explore new methods for reducing atmospheric CO2 emissions and converting them into useful forms. In this regard, the electrochemical method of reducing CO2 to other carbonaceous forms like carbon monoxide, alcohols and hydrocarbon has gained considerable attention. /news/2023-05-sustainable-electrochemical-method-carbon-dioxide.html Materials Science Mon, 15 May 2023 10:07:45 EDT news603364063 The adverse effects of excess nitrate in water on human productivity and lives have received increasing attention due to the discharge of industrial wastewater and the overuse of farmland fertilizers. An international team of researchers has conducted an in-depth study of the significant need and challenge of efficient nitrate removal. /news/2023-05-carbon-nanotube-membranes-pd-cu-modification.html Bio & Medicine Nanomaterials Fri, 12 May 2023 13:36:02 EDT news603117361 High-quality data transmission, high-precision information sensing, and high-sensitivity signal detection are important means to achieve precise perception and effective identification. High-performance chips, terahertz transmission T/R components, and extreme environment sensor manufacturing technologies have become key frontier research hotspots. Its effective implementation strongly depends on the ultra-precision micro-nano manufacturing level of the complex microstructure of core functional devices. As an excellent carrier for information-enabled core functional devices, pure copper metal has ultra-high electrical conductivity, thermal conductivity and high ductility, as well as low-loss signal transmission capabilities. Therefore, it has received extensive attention in the field of micro-nano manufacturing. /news/2022-07-advanced-pure-copper-3d-sub-micron.html Nanomaterials Wed, 27 Jul 2022 12:41:23 EDT news578144479 The boiling of water or other fluids is an energy-intensive step at the heart of a wide range of industrial processes, including most electricity generating plants, many chemical production systems, and even cooling systems for electronics. /news/2022-07-surfaces-efficiently.html Condensed Matter Tue, 12 Jul 2022 10:29:48 EDT news576840576 Flashing graphene into existence from waste was merely a good start. Now Rice University researchers are customizing it. /news/2022-03-graphene.html Nanomaterials Thu, 31 Mar 2022 12:22:14 EDT news567948116 Various photocatalyst powders can remove contaminants and microorganisms from water efficiently, but their practical application is limited due to poor recovery performance. /news/2022-03-material-photocatalyst-powders-recyclable-application.html Nanomaterials Thu, 31 Mar 2022 11:02:40 EDT news567943358 Energy researchers from the University of New South Wales (UNSW) have reported progress using controlled architectural design and structural engineering as a method to fine-tune materials to have simultaneous high power and high energy density for electrochemical storage in portable devices. /news/2022-02-fine-tuning-materials-energy-storage.html Materials Science Thu, 24 Feb 2022 16:24:18 EST news564942255 Researchers from the University of Surrey's Advanced Technology Institute (ATI) and the University of S茫o Paulo have developed a new analysis technique that will help scientists improve renewable energy storage by making better supercapacitors. /news/2021-11-hidden-behavior-supercapacitor-materials.html Materials Science Tue, 09 Nov 2021 10:56:49 EST news555677806 Despite breakthrough diabetes research over the past century, people with diabetes still need to rely on obtaining blood samples to monitor their sugar levels. Daily glucose monitoring by tracking blood sugar levels is essential for managing both types 1 and 2 diabetes, however the current method鈥攆inger pricking鈥攊s invasive and can become burdensome with how often it needs to be done. /news/2021-10-non-invasive-blood-sugar-methods-saliva.html Analytical Chemistry Thu, 14 Oct 2021 08:54:22 EDT news553420457 Study shows new chloride-based process recovers 84% of gold compared to the 64% recovered with traditional methods. /news/2021-10-non-toxic-technology-gold-ore.html Materials Science Fri, 01 Oct 2021 09:48:11 EDT news552300487 Several plants and animals have evolved surfaces with long-term (i.e., days to months) air-retainability to prevent wetting and submersion. One example is Salvinia, a plant floating on water. The secret "how do they maintain an air-mattress" has been unraveled by researchers. /news/2021-09-small-salvinia.html Plants & Animals Cell & Microbiology Wed, 15 Sep 2021 07:17:45 EDT news550909062 In a new report on Science Advances, Fenghui Duan and a research team in China detailed continuous strengthening in nanotwinned pure Nickel materials. The material recorded an unprecedented strength of 4.0 GPa at extremely fine twin thickness, 12 times stronger than that of conventional coarse-grained Nickel. Theories suggest diverse mechanisms of softening nanograined metals. Continuous strengthening can occur in nanotwinned metals with extremely fine twin thickness to realize ultrahigh strength. It is challenging to experimentally verify this hypothesis while regulating the synthesis of nanotwinned metals with a thickness below 10 nm. In this work, the team developed columnar grained nanotwinned nickel with twin thickness ranging from 2.9 to 81 nm, using direct current electrodeposition to show the process of continuous strengthening. Duan et al. used transmission electron microscopy (TEM) to reveal the attributes of strengthening and credited the outcomes to the fine-spaced architecture of the material. /news/2021-09-extremely-strong-nano-twinned-pure-nickel.html Nanophysics Nanomaterials Wed, 01 Sep 2021 09:30:01 EDT news549704225 A research team led by Professor Guntae Kim in the School of Energy and Chemical Engineering at UNIST has announced a breakthrough in technology that efficiently converts liquid ammonia into hydrogen. Their findings have also attracted significant attention from academic research communities owing to its new analysis protocol, capable of finding optimal process environments. /news/2021-08-technique-seamlessly-ammonia-green-hydrogen.html Materials Science Thu, 12 Aug 2021 06:44:15 EDT news547969451