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Researchers at Fudan University in China have recently been trying to identify new promising quantum anomalous Hall insulators. Their latest paper, published in Physical Review Letters, outlines the unique characteristics of monolayer V₂MX₄, which could belong to a new family of quantum anomalous Hall insulators.

“Finding intrinsic quantum anomalous Hall materials is an important goal in topological material research,” Jing Wang, co-author of the paper, told Phys.org. “After we predicted MnBi₂Te₄, a paradigm example of magnetic topological insulator and exhibiting quantum anomalous Hall effect in odd layer, we have been thinking about finding new intrinsic quantum anomalous Hall insulator with large gap.”

Large-gap quantum anomalous Hall insulator materials exhibit a quantum anomalous Hall effect with a relatively large energy gap between the valence and conduction band. These materials should exhibit a synergy between two seemingly conflicting properties, namely spin-orbit coupling and ferromagnetism.

In an era where the quest for sustainable energy sources has become paramount, researchers are tirelessly exploring innovative avenues to enhance fuel production processes. One of the most important tools in converting chemical energy into electrical energy and vice versa is electrocatalysis, which is already used in various green-energy technologies.

Two scientists at the Swiss Laboratory of Nanoscience for Energy Technologies in the School of Engineering may have hit upon a way to simultaneously produce clean water and clean electricity, all with zero pollution.

Giulia Tagliabue, the head of the laboratory, and Tarique Anwar, a PhD student, focused their research on hydrovoltaic effects, which can harness the power of evaporation to provide a continuous flow of energy in order to harvest electricity using specialized nanodevices.

Continue reading “Scientists make ‘major finding’ with nanodevices that can seemingly produce energy out of thin air: ‘Contradicting prior understanding’” »

As many as three billion tonnes of methane is released from hydroelectric power plants that could be repurposed as fuel if captured.

As AFP reports, in a meeting with industry experts, an economy ministry official outlined a target completion date of post-2035. To achieve this ambitious goal, a significant investment of five trillion yen ($33 billion) will be allocated over the next decade, fueling research and development of the new passenger plane.

This latest endeavor seeks to establish Japan as a leader in passenger aircraft production – a position it hasn’t held in over half a century. Building on the challenges that Mitsubishi Heavy Industries (MHI) encountered, which canceled its long-delayed passenger jet project in 2023, the new public-private consortium strongly emphasizes clean energy.

A team from the Dalian Institute of Chemical Physics made a breakthrough in converting methane to formic acid using oxygen at room temperature through a high-pressure electro-Fenton process, achieving significantly higher efficiency and productivity than traditional methods.

Direct conversion of methane (CH₄) and oxygen (O₂) to value-added chemicals is important for natural gas industries. However, challenges remain due to the difficulty of O₂ activation in forming active oxygen species for CH₄ activation under mild conditions.

Recently, a research group led by Prof. Dehui Deng, Assoc. Prof. Xiaoju Cui and Liang Yu from the Dalian Institute of Chemical Physics (DICP) of the Chinese Academy of Sciences (CAS) realized the electrochemical conversion of CH₄ by O₂ to formic acid (HCOOH) at room temperature. This study was published in the Journal of the American Chemical Society.

Researchers have reduced the size of steam turbines using supercritical CO₂ as a medium, hinting at smaller power plants.

A Japanese rocket by startup Space One has exploded in spectacular fashion following a launch attempt earlier today.

It’s yet another major setback for the company, which was hoping to become Japan’s first commercial entity to launch a satellite into orbit, the New York Times reports.

Drone footage shows the dramatic scene. At first, everything appears to go fine as the solid-fuel rocket dubbed Kairos lights its engines. But it doesn’t take long for the rocket to seemingly veer off path, erupting into a massive cloud of smoke just seconds later, causing major pieces of debris to rain down on the launch pad and engulf parts of the facility and a neighboring forest in flames.

Flames exhibit a spectrum of colors, ranging from yellow and orange to red, blue, and violet. Discover which hue denotes the highest temperature.