Layered anodes with high initial Coulombic efficiency (ICE), high tap density, elevated volumetric energy density, and low production cost have attracted considerable attention for lithium-ion (Li+) storage. In contrast to two-dimensional (2D) anodes, the ultrahigh valence state of tantalum (Ta, +5) and its large ionic radius make layered Ta-based compounds promising hosts for accommodating large amounts of Li+. In this study, we employ density functional theory (DFT) to investigate three types of layered Ta-based materials (TaC, TaN, and TaB) as potential anodes for the first time. Among them, layered TaC is identified as a highly promising host for superdense Li+ storage. To the best of our knowledge, layered TaC delivers the highest specific capacity (above 900 mAh g-1) and energy density 433.35 Wh kg-1 (3293.46 Wh L-1) reported to date among layered anodes. Moreover, the moderate average voltage of 0.7 V ensures safety. Furthermore, it exhibits a low Li+ diffusion barrier of 0.304 eV, suggesting excellent rate performance. These results highlight the remarkable superdense Li+ storage capability of layered TaC and underscore its strong potential for commercialization.
The large-scale applications of anion exchange membrane water electrolysis (AEMWEs) and zinc-air batteries (ZABs) are observably limited by the lack of highly active, multifunctional, and industrially applicable electrocatalysts. In this work, we report a solvent-free rapid pyrolysis strategy that successfully prepares a composite material of Pt8V-V2O3 heterostructure supported on nitrogen-doped porous carbon (Pt8V-V2O3@NPC). In alkaline hydrogen evolution reactions, the mass activity of Pt8V-V2O3@NPC reaches 10.6 times that of commercial Pt/C, while the half-wave potential for the oxygen reduction reaction is 0.89 V. The assembled ZABs demonstrate stable cycling performance over 5550 cycles at a current density of 5.0 mA cm-2, with negligible voltage decay. Likewise, AEMWEs incorporating this material exhibit stable operation for over 500 h at a current density of 1000 mA cm-2, with a voltage decay rate of only 0.14 mV h-1. Combined X-ray absorption fine structure spectroscopy and theoretical studies demonstrate that the interfacial electron transfer from V2O3 to Pt8V optimizes the d-band center of Pt8V-V2O3. This study proposes an interface electronic bridging strategy for the design of multifunctional electrocatalysts, which may provide support for the development of practical clean energy technologies.
Foster Grandparent Program (FGP) is a multigenerational approach to community volunteerism. The study uses intergenerational solidarity to conceptualize the impact of the FGP. The study aims to examine the impact from two dimensions by analyzing data from the Assignment Assessment Forms and the New General Self-Efficacy Scale. Paired t-tests were conducted to determine whether there is a difference in the mentees’ behavior pre- and post-intervention from four years and byway of three priority areas. Results indicated that the FGP has an impact on both the mentees and volunteers. Findings suggest that the program’s activities are the vehicle for intergenerational solidarity.
Unmanned Aerial Vehicles (UAVs) have revolutionized the field of cultural heritage documentation by providing high-resolution, flexible, and cost-effective alternatives to traditional surveying methods. UAVs enable rapid acquisition of aerial imagery and three-dimensional (3D) data, supporting photogrammetric reconstruction, laser scanning, and continuous temporal monitoring of historical structures, archaeological sites, and urban heritage landscapes. This study comprehensively reviews contemporary UAV applications in cultural heritage, emphasizing case studies from Turkey that illustrate the effectiveness of UAV-based surveys in documenting architectural details, assessing material degradation, and informing conservation strategies. The research further examines the integration of UAV workflows with complementary techniques such as terrestrial laser scanning (TLS), close-range photogrammetry (CRP), and Heritage Building Information Modeling (HBIM), highlighting the advantages of hybrid data fusion for producing accurate, visually rich, and analytically robust 3D models. Key benefits, including operational efficiency, non-invasive data collection, and the ability to perform temporal monitoring, are discussed alongside inherent limitations such as environmental constraints, sensor capabilities, and data processing requirements. Finally, the study explores future prospects of UAV-based heritage documentation, including the use of multispectral and hyperspectral sensors, AI-assisted feature extraction, and cloud-based collaborative platforms, emphasizing their potential to enhance preventive conservation, structural assessment, and public engagement. Through this comprehensive review, UAV technology is demonstrated as a transformative tool that not only advances the scientific understanding and preservation of cultural heritage but also facilitates innovative visualization, virtual reconstruction, and broad societal access to historically significant sites.
