Results 21 to 30 of about 441,557 (139)

High‐Temperature Stable Narrowband Near‐Infrared Phosphor‐Converted Light‐Emitting Diode Based on Melt‐Grown CsPbCl3: Yb3+ Crystal

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Narrowband near‐infrared (NIR) phosphor‐converted light‐emitting diodes (pc‐LEDs) featuring low full‐width at half maximum (FWHM) and high conversion efficiency are crucial for chemical content evaluation, light therapy, and bioimaging.
Chunshen Li   +4 more
wiley   +1 more source

A Stretchable Sandwich Composite Film With Ultra‐Broadband Electromagnetic Interference Shielding and High‐Performance Photothermal Conversion Capability

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT With the rapid growth demand for advanced integrated electronic systems, lightweight flexible electromagnetic interference (EMI) shielding films integrated with functional properties, such as excellent mechanical properties and self‐healing capability, are a research focus in high‐tech functional materials. Herein, a sandwich‐structured aramid
Dan Guo   +9 more
wiley   +1 more source

光热膜蒸馏技术及其在水处理领域的研究进展

open access: yesGongye shui chuli
光热膜蒸馏(Photothermal membrane distillation,PMD)是一种利用太阳能直接驱动的新型膜分离技术,具有能耗低、零碳排放等优势,为应对传统废水回用技术高能耗问题提供了绿色高效的解决途径。阐述了PMD的基本原理与过程,梳理了四类PMD常用光热材料(金属纳米材料、无机半导体、碳基材料和聚合物材料)的光热转换机制及其性能优势与局限性,综述了PMD在水处理领域的研究进展、应用潜力及当前面临的主要挑战,并进一步指出未来应重点关注光热材料开发、PMD工艺优化与成本控制等研究方向 ...
李杰   +4 more
doaj   +4 more sources

In Situ MOF Pyrolysis Construction of Hierarchical Porous Co‐Nanoparticles/Carbon Cloth Composites for Enhanced Electromagnetic Wave Shielding and Absorption

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT The development of high‐performance electromagnetic protection materials integrating broadband absorption and effective shielding capabilities is hindered by challenges in simultaneously optimizing multiple electromagnetic properties through conventional material designs.
Changlong Du   +9 more
wiley   +1 more source

硫化铜/聚乙烯醇多孔水凝胶的制备及太阳能界面蒸发性能

open access: yesGongye shui chuli
使用硫代硫酸钠为硫源,硫酸铜为铜源,通过水热法合成硫化铜(CuS)颗粒,随后以CuS作为光热转换材料,聚乙烯醇(PVA)水凝胶作为基底,通过冷冻干燥法制备CuS/PVA多孔复合凝胶,研究了m(CuS)∶m(PVA)、凝胶固含量和光照强度对海水淡化效率的影响。结果表明,光热转换材料CuS占比越高,复合凝胶对太阳能的吸收性能、光热转换效果以及海水淡化性能越好。固含量10%,m(CuS)∶m(PVA)=0.2∶1时制备的CuS/PVA(0.2,10%)多孔凝胶对太阳光的吸收率可以达到94%,在1 sun(1 ...
余佳慧   +4 more
doaj   +2 more sources

Coral‐Like Yolk–Shell‐Structured CoNi@Void@C Microspheres for Enhanced Microwave Absorption, Photothermal, Anti‐Corrosion, and Radiation Shielding Properties

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT Considering the multiple challenges faced by stealth coatings in complex service environments, the development of multifunctional integrated microwave absorbing materials (MAMs) that combine efficient electromagnetic (EM) attenuation with environmental tolerance has become an urgent need. In this work, coral‐like CoNi@Void@C microparticle (MP)
Jiale Wu   +8 more
wiley   +1 more source

Fabricating Highly Efficient Ternary Mn–CeOx/Co3O4 Catalysts for Low Temperature Thermal Desorption of Persistent Perfluorooctanoic Acid in Soil

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Developing efficient catalytic thermal desorption systems is of great significance in the field of sustainable soil remediation. Herein, novel Mn–Ce solid solution modified Co3O4 nanocrystals were successfully prepared for the removal of perfluorooctanoic acid (PFOA) in soil.
Yu‐Hao Liu   +8 more
wiley   +1 more source

光脉冲时域展宽模数转换器

open access: yes, 2010
一种光脉冲时域展宽模数转换器,包括:超连续激光光源,电光调制器,光电转换器,普通模数转换器,其中:超连续激光光源的输出端通过第一光纤与电光调制器的输入端相连;电光调制器的输出端通过第二光纤与光电转换器的输入端相连;光电转换器的输出端与普通模数转换器的输入端相连 ...
倪卫宁, 张 强
core  

Endogenous/Exogenous Dual‐Responsive Bimetallic Hollow Nanozyme for Photothermal/Nanocatalysis/Immune Synergistic Tumor Therapy

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Nanozymes have attracted considerable attention in cancer therapy due to their adjustable enzyme activity and high catalytic efficiency. However, they still face a major challenge from tumor metastasis. In this work, endogenous/exogenous dual‐responsive bimetallic hollow PdRu (termed HPdRu) nanozymes were prepared.
Nan‐Nan Zheng, Xin Hu, Jun‐Qing Hu
wiley   +1 more source

亚微米级Ti4O7的制备及其光热转换性能

open access: yes, 2018
光热转换是一种有效的太阳能利用技术,其效率主要取决于光热转换材料的光吸收能力。本研究通过低成本球磨法制备亚微米级的Ti4O7,采用扫描电镜、激光粒度仪、X射线衍射仪、差式扫描热分析仪表征其微观形貌、粒径大小、组成和比热容,用紫外-可见-近红外(UV-Vis-NIR)分光光度计和太阳光模拟器分别测试其光吸收能力和光热转换性能。结果表明,通过球磨法成功制备出粒径约0.35 μm的亚微米Ti4O7粉末,其太阳光全光谱吸收能力约89.5%,光热转换效率约73.7%。当亚微米级Ti4O7漂浮在水面时 ...
李建强   +7 more
core  

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