Electrochemical flow aziridination of terpenes
Due to the inherent physiological properties of nitrogen-containing heterocyclic moieties, the construction of nitrogen-containing compounds has emerged as one of the central issues in contemporary synthetic chemistry over recent decades. Among these.....»»
Researchers design novel hollow-fiber Cu penetration electrode for efficient CO₂ electroreduction
Electrochemical conversion of CO2 into value-added chemical fuels driven by renewable electrical energy has roles in reducing net CO2 emission and in addressing energy consumption......»»
Researchers visualize energetic ion flow in fusion devices
In a burning plasma, maintaining confinement of fusion-produced energetic ions is essential to producing energy. These fusion plasmas host a wide array of electromagnetic waves that can push energetic ions out of the plasma......»»
Thermoelectric permanent magnet opens new possibilities in thermal management technologies
A research team has demonstrated that the transverse thermoelectric conversion (i.e., energy conversion between charge and heat currents that flow orthogonally to each other) can be greatly enhanced by applying magnetic fields or utilizing magnetism......»»
New instrument to capture stardust as part of NASA mission
Scientists and engineers at the CU Boulder will soon take part in an effort to collect a bit of stardust—the tiny bits of matter that flow through the Milky Way Galaxy and were once the initial building blocks of our solar system......»»
PFAS flow equally between Arctic Ocean and Atlantic Ocean, study finds
The frigid Arctic Ocean is far removed from the places most people live, but even so, "forever chemicals" reach this remote landscape. Now, research in Environmental Science & Technology Letters suggests that per- and polyfluoroalkyl substances (PFAS.....»»
Exploring developments and challenges in electrochemical nitrate reduction for ammonia synthesis
Ammonia is a necessary feedstock to produce nitrogen-based fertilizers, chemicals, pharmaceuticals, and polymers. To date, about 80% of global ammonia is used to produce nitrogen-based fertilizers which relates to 50% of global food production......»»
Iron snow ebb and flow may cause magnetic fields to come and go
Just as snow crystals form in the upper atmosphere, then fall to lower, warmer elevations and melt, scientists believe a phenomenon called iron snow happens in the molten iron cores of some planetary bodies. Cooling near the core-mantle boundary crea.....»»
DoJ"s Apple App Store probe is "firing on all cylinders"
The Department of Justice antitrust probe into Apple's App Store rules is still rolling on, with the examination into the digital storefront's dominance apparently in full flow and potentially getting closer to actually bringing a case against the iP.....»»
This low-profile mechanical keyboard surprised me in every way
The Lofree Flow completely changed how I feel about low-profile mechanical keyboards......»»
Watch sand defy gravity and flow uphill thanks to “negative friction”
Applying magnetic forces to single iron oxide-coated particles spurs strange collective motion. There's rarely time to write about every cool science-y story that comes our way. So this year, we're once again running a special Twe.....»»
Iceland volcano eruption calms as lava flow eases
An Icelandic volcano that erupted and spewed lava into the sky overnight near a power plant was less active Tuesday, after weeks of intense seismic activity southwest of Reykjavik......»»
A new strategy for making and manipulating higher-temperature superconductors
Superconductors have intrigued physicists for decades. But these materials, which allow the perfect, lossless flow of electrons, usually only exhibit this quantum-mechanical peculiarity at temperatures so low—a few degrees above absolute zero—as.....»»
From "liquid lace" to the "Drop Medusa," researchers compete for the best image of fluid flow
Each year at its annual meeting, the American Physical Society's Division of Fluid Dynamics sponsors a contest for the best images in a variety of categories, all related to the flow of fluids......»»
Reviewing the state of research into 2D noble metal-based intermetallic compound electrocatalysts
As demand grows for more sustainable and efficient energy generation, electrochemical energy conversion technologies that rely on electrocatalysis stand out as promising alternatives. Research into the best type of electrocatalysts is ongoing......»»
Discovery of a new Hall effect: Does it violate Onsager"s reciprocal theorem?
Researchers at the University of Tsukuba and NIMS have observed a novel Hall effect wherein the deflection direction of current varies according to the current flow direction. Onsager's reciprocal theorem, a fundamental theorem in materials science,.....»»
Discovery of magnetic liquid crystal: First direct observation of spin quadrupole moments in a spin-nematic phase
Liquid crystal is a state of matter that exhibits properties of both liquid and solid. It can flow like a liquid, while its constituent molecules are aligned as in a solid. Liquid crystal is widely used nowadays, for example, as a core element of LCD.....»»
Researchers review miniaturized electrochemical sensor technologies for rapid heavy metal detection
Heavy metals (HMs) are metals with high densities and atomic weights. Originating from geological processes or human activities, including mining, industrial production, and petrochemical plants, they are toxic to humans and animals and considered as.....»»
The hidden impacts of climate change on a freshwater ecosystem
From melting glaciers to rising sea levels, from raging wildfires to devastating floods, society has grown increasingly aware of the increasingly frequent climate crises. But what about its subterranean flow? A research group led by Li Dongfeng at th.....»»
Permselectivity reveals a cool side of nanopores
Researchers from Osaka University investigated the thermal energy changes across nanopores that allow the selective flow of ions. Switching off the flow of ions in one direction led to a cooling effect. The findings have applications in nanofluidic d.....»»
New insight on electrochemical reactions—advancing the green transition
Electrochemical reactions are central to green transitions. These reactions use electric current and potential difference to carry out chemical reactions, which enables binding and realizing electric energy from chemical bonds. This chemistry is the.....»»