来源：ACS PublicationsUnderstanding the influence of processing routes on grain boundary structure and crystallographic texture is essential for optimizing the magnetic performance of nanocrystalline Nd–Fe–B magnets. In this study, a five-parameter crystallographic analysis was employed to systematically investigate the influence of spark plasma sintering and hot deformation sintering on the grain boundary plane distribution and crystallographic texture of nanocrystalline Nd–Fe–B magnets. Its reveals that the hot deformation process confers marked advantages in promoting strong c-axis texture and...
Release time:
2026
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来源：ACS PublicationsThe rare-earth intermetallic compound NdCuSb2 possesses an antiferromagnetic (AFM) order below TN = 3.78 K, with magnetic moments aligned along the b axis. Here, we systematically investigate the pressure evolution of the structural and electronic properties of a NdCuSb2 single crystal up to 53.4 GPa. With initial increasing pressure, TN decreases rapidly and eventually vanishes above PC = 3.5 GPa, indicating the complete suppression of the pristine AFM state. Upon further compression to 6.0 GPa, a new anomaly, T*, around 4 K is observed and shows a monotonous increment with...
Release time:
2026
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04
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来源：ACS PublicationsThe healing of infected wounds is often hampered by a dynamically evolving pathological microenvironment. Conventional static therapeutic approaches lack the adaptability to address these changes. Herein, a pH/reactive oxygen species (ROS) dual-responsive cerium single-atom nanozyme spray was developed, intelligently adapting to the dynamic microenvironment of infected wounds. In the initial infection, it responds to an acidic microenvironment and exerts potent antibacterial activity by exhibiting cascade glucose oxidase (GOD)- and peroxidase (POD)-like activities to generat...
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2026
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来源：ACS PublicationsRare-earth materials are commonly described as “industrial vitamins” since they are mainly employed as structural or electronic modifiers rather than as direct catalytic centers. This is because their highly shielded 4f electrons prevent them from effectively participating in interfacial charge transfer. In this work, we break this long-standing limitation by engineering atomically dispersed lanthanum (La) on nitrogen-doped carbon (NC), where it is stabilized in a La-N4 coordination environment to form a new material denoted as La-NC. The resulting La-NC electrode functions ...
Release time:
2026
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