Results 11 to 20 of about 2,896 (118)

静电除尘效率的影响因素研究

open access: yesGaoya dianqi, 2021
通过试验研究了影响静电除尘器捕集效率的因素,分析了微粒粒径、电场强度、气流流速、电离电压、电离电极洁净程度对捕集效率的影响规律。结果表明,静电除尘器中的微粒捕集效率随粒径的增大而提高;同样的带电微粒,随电场强度增大,其捕集效率增加;随着气流速度加大,捕集效率变小;随电离电压增大,微粒所带电荷增加,捕集效率亦增大;气流通过电离区时,会有极少的微粒被捕集到电离电极表面,微粒自身有一定的电阻率,导致放电电流下降,大多数微粒荷电减少,除尘器捕集效率降低。采用Deutsch模型估算试验中带电微粒的迁移速度 ...
庞海龙   +4 more
doaj  

Cavity‐Confined Indium Single‐Atom Catalysts Enable Localized Electron Enrichment for Highly Efficient and Selective Photocatalytic CO2 Reduction

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Single‐atom catalysts are attractive for CO2 photoreduction due to their maximized atomic utilization and tunable electronic structures. In this study, indium (In) single atoms were incorporated into graphitic carbon nitride (CN) through an impregnation‐assisted thermal polycondensation strategy.
Xueying Guo   +6 more
wiley   +1 more source

Highly Stable Aqueous Zinc Anodes Enabled by Synergistic Modulation of Interface and Solvation Structures

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT The stability of aqueous Zn2+ batteries is severely hindered by parasitic reactions at the Zn anode/electrolyte interface. Herein, itaconic acid (IA) is introduced as an effective electrolyte additive to achieve a highly stable zinc anode. Remarkably, IA concurrently modulates both the zinc anode/electrolyte interfacial structure and the Zn2 ...
Chenggang Wang   +5 more
wiley   +1 more source

Bi/Bi2O3 Nanoparticles In Situ Embedded in Carbon as Anode Materials for Fast and Long‐Lasting Sodium–Ion Storage

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
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

Manipulating Terminal Bonds of Ti3C2Tx MXene for Highly Efficient Microwave Absorption and Photothermal Conversion

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT MXenes have been widely investigated as microwave absorption (MA) materials because of their unique properties. This study introduces a terminal bond manipulation strategy to enhance charge transfer and polarization in Ti3C2Tx, optimizing its MA performance.
Xiang Fang   +8 more
wiley   +1 more source

Construction of CoP/Mn2P Heterojunctions via One‐Step Phosphorization Coupled With Hollow Hard Carbon Spheres as Supports: Enabling Ultrastable Long‐Cycle Sodium‐Ion Anodes Over a Wide Temperature Range

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Driven by global energy transition and sustainability, sodium‐ion batteries (SIBs) have emerged as key alternatives to lithium‐ion batteries for low‐to‐medium energy storage, because of abundant sodium resources and low cost. However, their commercialization is hindered by the lack of anodes with high capacity, fast kinetics, and long‐term ...
Shuang‐Lin Cai   +13 more
wiley   +1 more source

基于时间触发机制的温控负荷集群综合惯性控制研究 [PDF]

open access: yes全球能源互联网
面对新型电力系统的低惯量趋势,规模庞大而位置分散的温控负荷在参与电力系统频率响应的同时,能够为电网提供虚拟惯量和一次调频支撑将是提升电网频率安全的新思路。为此,以集中-分布式调控框架下的温控负荷集群为研究对象,首先在详细分解控制层调控中心、协调层聚合商、响应层温控负荷终端三者在辅助调频过程中的采样、计算、控制、执行一系列实时任务的基础上,设计了事件触发与时间触发相结合的温控负荷集群终端异步响应机制,实现温控负荷集群功率遵从综合惯性控制律的效果。随后 ...
周特   +6 more
doaj   +1 more source

Electronic Modulation of CoNi Nanoparticles by N‐Doped Carbon for Efficient Lignin Hydrogenolysis to Aromatic Monomers

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Cost‐effective and efficient non‐noble‐metal catalysts for selective lignin hydrogenolysis remain elusive, representing a significant challenge in biorefinery. Here, we prepared a nitrogen‐doped carbon supported CoNi bimetallic catalyst, which was successfully derived from zeolitic imidazolate framework (ZIF) via high‐temperature pyrolysis ...
Xingwei Luo   +3 more
wiley   +1 more source

交流ZnO电阻片小电流区阻性、容性电流与电压关系研究

open access: yesDianci bileiqi, 2012
为了降低避雷器的残压,从而降低其拐点电压,使避雷器荷电率升高。由于不同荷电率下,阻性电流占全电流的比例不同,检测的标准不同。笔者通过对不同型号的避雷器用电阻片(MOV)测量不同荷电率下电流、电压的关系,还得出不同型号、不同配方的MOV在相同荷电率下的阻性电流占全电流的比例不同 ...
刘振莉, 郭洁, 金青, 崔龙跃
doaj  

Systematic Study of Fermi‐Level Pinning at Crystalline Metal/GaN Interfaces: First‐Principles Calculations and Diode Characterization

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT The Schottky barrier height (SBH), which serves as a pivotal determinant of charge carrier injection efficiency in electronic devices, critically governs electrical behavior at metal/semiconductor interfaces. However, pronounced metal‐induced gap states at metal contact interfaces induce Fermi‐level pinning, which constrains the ...
Xiaofei Liu   +10 more
wiley   +1 more source

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