Results 21 to 30 of about 1,621,629 (141)
ABSTRACT NiTi shape memory alloys (SMAs) show excellent performance in vibration damping and corrosion resistance. However, due to low hardness and lack of self‐lubrication, they suffer severe friction and wear during service. Although various strategies including doping and heterostructure design have been proposed, the effects are unsatisfactory.
Huwen Ma +13 more
wiley +1 more source
ABSTRACT VO2 is a promising thermochromic material, but it is still limited by low transparency, weak solar modulation, and poor stability. Here, we develop a coordination‐compound‐derived strategy to construct a hierarchical BiVO4/VO2@BiVO4 film with a core–shell@nanosheet structure.
Huiyan Xu +11 more
wiley +1 more source
ABSTRACT The development of structurally stable anodes with high capacities and long cycle lives is essential for the development of potassium–ion batteries. Conversion‐type anodes have attracted considerable attention in potassium–ion batteries (PIBs) due to their high theoretical capacities.
Jeong Ho Na +7 more
wiley +1 more source
ABSTRACT NASICON‐type Na4VMn(PO4)3 (NVMP) is a promising high‐capacity cathode for sodium‐ion batteries, yet its practical deployment is hindered by Mn3+‐driven lattice distortion, persistent oxygen vacancy defects, and sluggish Na+ transport, collectively resulting in accelerated performance degradation.
Deyi Zhang +10 more
wiley +1 more source
等离子体中子源是托卡马克中子学分析的重要输入,是连接核聚变等离子体物理和工程设计的桥梁。为了更精确地描绘中子壁负载(Neutron Wall Loading,NWL)的空间分布,开发了一组处理中子源和NWL的独立代码。对托卡马克中的氘氚聚变等离子体放电进行研究,构建了核聚变反应类型以及中子源释放模型,同时也建立了高能量中子对第一壁轰击的理论模型。基于托卡马克等离子体位形,采用“复丝”方法开展了中子源和NWL分布的数值模拟研究。研究结果表明,NWL最大值在外侧中平面附近,比在内侧中平面的高100%以上 ...
杨 文军, 龚 学余, 高 翔
doaj +1 more source
ABSTRACT Bismuth anode materials are considered promising anode candidates for sodium–ion batteries (SIBs) due to their high theoretical capacity and appropriate working potential. Nevertheless, the significant volume expansion that occurs during the cycling process restricts its broader application in sodium–ion storage. Herein, Bi/Bi2O3 nanoparticles
Jiaju Lu +3 more
wiley +1 more source
Engineering Geometric Active Sites in Cobalt Spinel Oxides for Energy and Environmental Catalysis
ABSTRACT Cobalt‐based spinel oxides (Co3O4 and derivatives) are among the most promising transition metal oxides for electrochemical energy conversion and environmental catalysis due to their abundant active sites, structural tunability, and robust redox flexibility.
Shenning Liu +6 more
wiley +1 more source
采用实验室研制的高取代度阳离子淀粉作为絮凝剂对生活污水进行处理,获得良好的效果。通过实验探讨了高取代度阳离子淀粉的加入量、废水的pH及絮凝时间对絮凝效果的影响,确定了高取代度阳离子淀粉处理生活污水的最佳条件。同时测定了处理前后的生活污水的CODCr值,发现高取代度阳离子淀粉能大幅度地降低生活污水的CODCr值。
杨建洲, 张荣莉, 林里, 彭莉
doaj +2 more sources
ABSTRACT The rapid advancement of 5G communication technology has intensified electromagnetic pollution, creating an urgent demand for flexible multifunctional fabrics with efficient electromagnetic interference (EMI) shielding performance. This study proposes a novel material‐stacked construction strategy to fabricate multifunctional MXene/cellulose ...
Zong‐Kai Yan +9 more
wiley +1 more source
Cs2SnI6: A Perovskite‐Based Electromagnetic Wave Absorbing Material
ABSTRACT Lead halide perovskites and carbon‐based materials are interesting, high‐performing electromagnetic wave absorbing materials. However, only a few studies have been carried out to examine in detail the electromagnetic wave absorption properties of these materials.
Fei Han +11 more
wiley +1 more source

