Chinese scientists develop high-performance iron catalyst for fuel cells
Peer-Reviewed Publication
Updates every hour. Last Updated: 11-Nov-2025 22:11 ET (12-Nov-2025 03:11 GMT/UTC)
Augmented reality (AR) adoption has been hindered by bulky hardware and distracting "rainbow artifacts". Now, scientists have developed a groundbreaking solution: the first systematically reported single-layer silicon carbide (SiC) waveguide. This ultra-light, ultra-thin, and mass producible diffractive waveguide weighs only 3.795g, provides a full-color, rainbow-artifact-free display, and can be compatibly combined with mass-produced prescription lenses to offer a seamless AR experience for nearsighted users.
The Jiangmen Underground Neutrino Observatory (JUNO) has successfully completed filling its 20,000-tons liquid scintillator detector and begun data taking on Aug. 26. After more than a decade of preparation and construction, JUNO is the first of a new generation of very large neutrino experiments to reach this stage. Initial trial operation and data taking show that key performance indicators met or exceeded design expectations, enabling JUNO to tackle one of this decade’s major open questions in particle physics: the ordering of neutrino masses—whether the third mass state (ν₃) is heavier than the second (ν₂).
Carotid endarterectomy (CEA) is a surgical procedure to remove plaque buildup in the carotid artery, which supplies blood to the brain. Although its efficacy is known, the effect of CEA on the blood-brain barrier (BBB) properties has not been examined. Now, Chinese scientists have examined CEA-induced changes in the hemodynamic and BBB properties in patients with severe carotid artery stenosis using computed tomography perfusion scanning, demonstrating improved blood flow and enhanced BBB permeability reversal.
Researchers at Beijing Institute of Technology have experimentally demonstrated anomalous topological pumping in hyperbolic lattices - a phenomenon impossible in conventional materials and Euclidean structures. Published in Science Bulletin, this work reveals how these curved-space structures can simulate high-dimensional quantum physics while exhibiting unique boundary-dependent transport.
This paper presents the first demonstration of introducing 1,3-dithiane as a multifunctional additive into carbonate-based electrolytes. Through a unique "polarity reversal" mechanism and anion regulation effect, it simultaneously constructs inorganic-rich, high-ionic-conductivity interfaces on both cathode and anode. The Li||LiFePO4 cells assembled with this strategy achieved a remarkable 83.6% capacity retention after 3,300 cycles at 1C rate, while Ah-level pouch cells exhibited a 10-fold improvement in cycle life.
The research highlights how changes in the Northern Westerlies have influenced East Asian summer monsoon precipitation isotope during past abrupt climate events, providing insights into understanding high- and low-latitude teleconnections.
The East Asian summer monsoon (EASM), which sustains the livelihoods of billions of people, is a vast and complex climate system. While its variability during glacial periods has been closely linked to abrupt climate events such as the Dansgaard-Oeschger (DO) events, the role of the Northern Westerlies in modulating EASM moisture transport and isotopic compositions remains poorly understood.
A study led by Jun Cheng from Xiamen University and collaborators introduces a new workflow for recommending relay catalysis pathways. The workflow uses large language models (LLMs) to extract and organize catalytic reaction data, and combines this with a self-built catalysis knowledge graph (Cat-KG). The system automatically filters and recommends high-quality, traceable multi-step pathways, helping researchers design catalytic reactions more efficiently.