A team of scientists led by the Department of Energy’s Oak Ridge National Laboratory has found an unconventional way to improve catalysts made of more than one material. The solution demonstrates a path to designing catalysts with greater activity, selectivity and stability. A catalyst normally uses a support to stabilize nanometer-sized metal particles that speed … Read more
An Australian-led study has found unusual insulating behavior in a new atomically-thin material—and the ability to switch it on and off. Materials that feature strong interactions between electrons can display unusual properties such as the ability to act as insulators even when they are expected to conduct electricity. These insulators, known as Mott insulators, occur … Read more
Physicists have observed a novel quantum effect termed “hybrid topology” in a crystalline material. This finding opens up a new range of possibilities for the development of efficient materials and technologies for next-generation quantum science and engineering. The finding, published in Nature, came when Princeton scientists discovered that an elemental solid crystal made of arsenic … Read more
Experimental and theoretical physicists from the Würzburg Institute for Topological Insulators have observed a re-entrant quantum Hall effect in a mercury telluride device and have identified it as a signature of parity anomaly. Topological insulators are materials that can conduct electricity, but only on their surface or edges. No current flows inside them. They are … Read more
Research often unfolds as a multistage process. The solution to one question can spark several more, inspiring scientists to reach further and look at the larger problem from several different perspectives. Such projects can often be the catalyst for collaborations that leverage the expertise and capabilities of different teams and institutions as they grow. For … Read more
Electronic states that resemble molecules and are promising for use in future quantum computers have been created in superconducting circuits by physicists at RIKEN. The most obvious advantage of superconductors—materials that offer no electrical resistance to the flow of electrons—in electronic circuits is that they don’t produce any wasteful heating, which limits the energy efficiency … Read more
Single-atom catalysts (SACs), due to their excellent catalytic activity, have been a hot topic in the field of energy catalysis. In SACs, the metal atoms are able to directly interact with the supports, thus maximizing the metal-support interface. The metal-support interactions (MSIs) largely affect the electronic properties of single-atom catalysts and catalytic performance. Currently, the … Read more
The search for sustainable and affordable energy conversion technologies has highlighted the importance of the oxygen reduction and oxygen evolution reactions (ORR and OER). These processes are crucial for the efficiency of devices such as fuel cells and electrolyzers but have traditionally relied on costly noble metals as catalysts. This dependency poses significant barriers to … Read more
There is no doubt that water is significant. Without it, life would never have begun, let alone continue today—not to mention its role in the environment itself, with oceans covering over 70% of Earth. But despite its ubiquity, liquid water features some electronic intricacies that have long puzzled scientists in chemistry, physics, and technology. For … Read more