Results 11 to 20 of about 499,274 (169)

Bio‐Inspired Continuous Gradient Nanocomposites for Ultrahigh‐Temperature Dielectric Energy Storage at 150°C–200°C

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT Dielectric polymers commonly suffer from severe performance degradation above 150°C, hindering advanced power systems. Herein, we demonstrate a polyetherimide (PEI) nanocomposite that overcomes this by mimicking the gradient architecture of nacre and bamboo, incorporating a continuous vertical gradient of fluorinated boron nitride nanosheets ...
Jian Wang   +8 more
wiley   +1 more source

Architecting a Robust Yarn‐Like CNT Framework for Structurally Resilient ZnSe Anodes in Potassium–Ion Batteries

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
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

Dual‐Phosphidation‐Engineered Ni/NiO Heterojunction Nanoflowers With Synergistic Surface PO43− Group and P Doping Sites for High‐Performance and Low Temperature (−40°C) Supercapacitors

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT Nickel oxide (NiO)‐based electrodes with high theoretical specific capacitance can effectively increase the energy density of supercapacitors—the key factor limiting their practical deployment. However, several issues still restrict the production of advanced NiO‐based electrodes.
Ya‐Min Feng   +10 more
wiley   +1 more source

有机废水电化学氧化阳极材料的研究进展

open access: yesGongye shui chuli, 2006
阳极材料是电化学氧化法处理有机废水的关键。综述了贵金属电极、碳素电极、钛基金属氧化物电极和合成掺硼金刚石(BDD)薄层电极在内的常用阳极材料的性能,并对有机废水电化学氧化阳极材料的发展趋向进行了展望。
盛怡   +4 more
doaj  

Boosting Thermoelectric Properties of BiSbSe3 Through Ag‐Induced Interstitial Occupancy and Multi‐Phase Microstructure

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT Te‐free BiSbSe3 is a promising medium‐temperature thermoelectric (TE) material owing to its cost‐effectiveness and intrinsically low lattice thermal conductivity. However, its comparatively low electrical conductivity has severely hindered the optimization of TE performance.
Xiaowei Shi   +10 more
wiley   +1 more source

Upcycling of Waste Polyethylene Terephthalate Plastics to Fabricate Cobalt–Nickel Metal–Organic Frameworks and Their Phosphides for Efficient Oxygen Evolution Reaction

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT The urgent environmental crisis caused by polyethylene terephthalate (PET) waste necessitates efficient upcycling strategies. Herein, we establish a novel pathway to transform waste PET plastic into a high‐performance catalytic material for mediating the oxygen evolution reaction (OER). Through a one‐step hydrothermal process, waste PET serves
Xin Wang   +5 more
wiley   +1 more source

Structural Distortion for Polyoxometalate‐Derived Metal Sulfide Induced by In Situ Intercalation With Organic Ligands Achieving Efficient Electrocatalytic Hydrogen Evolution Performance in Alkaline/Seawater Medium

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT The electrocatalytic water splitting technique was widely taken for hydrogen evolution, due to its cost‐effectiveness and environmental friendliness. The design of electrode material as electrocatalysts play a key role in achieving high efficiency.
Yaling Zhu   +5 more
wiley   +1 more source

高阈值场发射屏蔽材料电性能实验研究

open access: yesGaoya dianqi, 2010
高域值场发射屏蔽材料为采用特殊工艺在不锈钢等金属材料表面覆盖一层绝缘薄膜,使金属表面的场致电子发射域值提高,有效防止金属材料表面局部场强过高导致电击穿的现象发生。为了检验和测试该屏蔽材料的实际性能,设计了屏蔽材料场发射域值的测试方案,采用电流测量方法判断经过屏蔽材料处理后的阴极头是否有电子发射,并通过阴极头的电压测试确定阴极头发射电子时的电压,通过数值模拟计算确定阴极头的发射域值。构建了实验测试平台,采用1 MV/100 kA电子加速器作为高压脉冲功率源,以平面二极管作为负载,二极管阴极头为实验样品 ...
伍友成   +4 more
doaj  

提升电容去离子效能的电极材料功能化策略

open access: yesGongye shui chuli, 2021
电容去离子(CDI)技术因其操作简便、高效和绿色等优点备受脱盐领域研究者们关注,电极材料一直是CDI领域研究焦点。围绕电容去离子效能提升,以功能化电极材料为核心,针对活性炭、石墨烯、二硫化钼、碳纳米管及金属有机框架等近3年最为热门的材料,综述了它们及其功能化材料在构建策略、电吸附性能增强方面的重要研究进展,并着重对比了它们应用条件差异和电化学性能优劣。通过深度理解构效关系,总结出介、微孔合理立体架构、杂元素掺杂、表面修饰改性的主体修饰策略,以期进一步构建出制备方法绿色、性能优异的电容去离子用电极材料 ...
喻舰   +5 more
doaj  

Structural Modulation of Magnetic Softness in Fe‐Based Amorphous Alloys via Pulse Current Training

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT Fe‐based amorphous alloys, despite their intrinsically low magnetocrystalline anisotropy, suffer from quasi‐dislocation dipoles and localized stress fields that impede domain‐wall motion and increase coercivity. Here, we introduce pulse current training (PCT) as an energy‐efficient technique to overcome these limitations in a Fe76Si9B10P5 ...
Shumin Ye   +13 more
wiley   +1 more source

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