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Category: energy – Page 4

Randomly aligned defects explain low thermal conductivity in some materials

QUT researchers have identified why some materials can block heat more effectively, which is a key feature for energy conversion, insulation and gas storage.

The research, published in Nature Communications, discovered a structural mechanism that explains why some materials with uneven composition exhibit exceptionally . This is a property vital for the conversion of heat into .

The first author, Siqi Liu, said the findings challenged conventional models that overlook the role of microstructural features.

Atomic Structure of Mn-Doped CoFe2O4 Nanoparticles for Metal–Air Battery Applications

We discuss the atomic structure of cobalt ferrite nanoparticles doped with Mn via an analysis based on combining atomic pair distribution functions with high energy X-ray diffraction and high-resolution transmission electron microscopy measurements. Cobalt ferrite nanoparticles are promising materials for metal–air battery applications. Cobalt ferrites, however, generally show poor electronic conductivity at ambient temperatures, which limits their bifunctional catalytic performance in oxygen electrocatalysis. Our study reveals how the introduction of Mn ions promotes the conductivity of the cobalt ferrite electrode.

Scientists Finally Peek Inside an “Impossible” Superconductor

High-pressure electron tunneling spectroscopy reveals the presence of a superconducting gap in H₃S and D₃S. Superconductors are special materials that allow electricity to flow without any resistance, making them essential for advanced technologies such as power transmission, energy storage, magnet

Dominican Republic hit with widespread power outage

A rare blackout hit the entire Dominican Republic on Tuesday, snarling traffic and paralyzing businesses in the country of nearly 11 million people.

Officials blamed a failure in the grid’s transmission system, although it wasn’t immediately clear what caused it.

Generation units in San Pedro de Macorís and the Quisqueya Power Plant shut down, triggering a cascade of failures at other transmission and generation plants, according to the Dominican Electricity Transmission Company, a decentralized state agency.

New Graphene Tech Powers Supercapacitors To Rival Traditional Batteries

Engineers have achieved a major milestone in the global effort to design energy storage systems that combine high speed with strong power output, opening new possibilities for electric vehicles, grid stabilization, and consumer electronics.

In a paper recently published in Nature Communications, the research team introduced a new type of carbon-based material that enables supercapacitors to store as much energy as traditional lead-acid batteries while delivering power at a much faster rate than conventional battery systems.

Severe solar storms may trigger widespread auroras and disrupt communications this week

Space weather forecasters issued an alert on Tuesday for incoming severe solar storms that could produce colorful northern lights and temporarily disrupt communications.

In the past few days, the sun has burped out several bursts of energy called that could reach Earth Tuesday night and early Wednesday. The potential severe geomagnetic storms could disrupt radio and GPS communications, according to forecasters with the National Oceanic and Atmospheric Administration.

How bright the auroras are and how far south they are visible will depend on when the solar bursts get here and how they interact with Earth’s atmosphere. The vibrant displays could be visible across much of the northern U.S., and as far south as Alabama and Northern California.

MIT quantum breakthrough edges toward room-temp superconductors

MIT scientists uncovered direct evidence of unconventional superconductivity in magic-angle graphene by observing a distinctive V-shaped energy gap. The discovery hints that electron pairing in this material may arise from strong electronic interactions instead of lattice vibrations.

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