Results 21 to 30 of about 6,811 (119)

A Molten Salt Strategy to Convert Bulk Nb2O5 Into 2D Nonlayered Niobium Nitride Nanosheets for Superior Pseudocapacitive Storage

open access: yesRare Metals, EarlyView.
ABSTRACT Two‐dimensional (2D) nonlayered niobium nitrides have attracted considerable interest for electrochemical energy storage. However, the synthesis of these materials is hampered by their nonlayered crystal structures, which are characterized by strong three‐dimensional chemical bonding.
Rui Huo   +7 more
wiley   +1 more source

Atomic Synergy of Vacancy‐Engineered Layered Double Hydroxide/Heteroatom‐Doped Carbon Quantum Dots for Bifunctional Oxygen Electrocatalysis in Zn–Air Batteries

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Low conductivity and poor oxygen reduction reaction (ORR) catalytic activity limit the bifunctional catalytic performance of layered double hydroxide (LDH) in zinc–air batteries. In this work, an efficient bifunctional electrocatalyst was prepared by loading nitrogen and phosphorus co‐doped carbon quantum dots (NPCQDs) onto a cationic‐vacancy ...
Wenhao Tang   +4 more
wiley   +1 more source

MXene‐Assisted Bi2MoO6 Heterogeneous Structures: Constructing Oxygen Vacancy for Accelerated Energy Storage Devices

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Two‐dimensional MXene‐based materials have recently attracted attention in supercapacitors and lithium ion batteries due to their excellent electrochemical performance. However, the capacity and agglomerate limits the development of MXene‐based materials.
Han Zhang   +4 more
wiley   +1 more source

Insights Into Ni2+‐Dominated Phase Regulation of Accordion‐Shaped CuNb2O6 Framework Toward Lithium‐Ion Capacitors

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT The monoclinic CuNb2O6 (M‐CNO) with a columbite structure is a potential anode candidate for advanced lithium‐ion capacitors (LICs). However, its practical application is plagued seriously by the irreversible phase transformation and sluggish kinetics.
Xu‐Ting Li   +6 more
wiley   +1 more source

体外循环管理中的意外和处理

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 1982
体外循环是心内直视手术成功的重要因素之一,而人工心肺机的性能和体外循环的管理技术更是决定治疗效果的两个重要因素。随着心脏外科的发展,复杂的心内手术会使操作时间延长,如何才能做到体外循环安全可靠则仍然是一个重要的问题。我院近年来在体外循环手术的人工心肺机管理工作中,虽然积累了一些经验,但也有不少教训。在456例体外循环心内直视手术中,曾因电源中断、人工心机变压器烧毁、氧合器漏血或因氧合器组件粘合不密闭漏氧而产生大气泡,动脉泵管或过滤网袋破裂及机血凝固等27例意外(占5.9%,见表1 ...
朱永年
doaj  

Constructing a Favorable Microenvironment for Robust Hydrogen Storage in MgH2 Through Synergistic Cooperation With Mn and Mg2Ni

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Weakening the electrostatic attraction between Mg2+ ions and H− ions in MgH2 is vital for improving the kinetic performance of MgH2 for hydrogen storage. Herein, a multivalent microenvironment is synergistically created by Mn and Mg2Ni to break the stable structure of MgH2, enabling rapid and stable de/hydrogenation performance.
Ya‐Ke Wu   +7 more
wiley   +1 more source

对比常规体外循环与自体肺体外循环对肺功能影响的实验研究

open access: yesZhongguo shiyan zhenduanxue, 2009
目的探讨以自体肺取代人工肺的体外循环方法与常规体外循环对犬肺功能的影响。方法将12只杂种犬随机分为对照组及实验组(每组6只)。对照组在体外循环(CPB)期间使用膜式氧合器,实验组在CPB期间使用自体肺进行氧合,两组均阻断主动脉90 min、辅助循环30 min,CPB前及停止后15及60 min,监测气道峰压、肺血管阻力和肺静脉血氧分压,留取血标本做生化分析,对肺组织进行光、电镜观察。结果CPB后15和60 min,对照组气道阻力明显高于CPB前(P0.05),实验组CPB后15和60 ...
林柏松   +4 more
doaj  

Sulfur‐Doped Carbon Matrix‐Coated Co1‐xS/Ni0.96S@NC Rhombic Cubes Significantly Enhanced the Storage Performance and Kinetics of Lithium/Sodium‐Ion Batteries

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Metal sulfide, as a type of lithium/sodium‐ion battery material, possesses merits such as high capacity and low cost. Nevertheless, it is prone to structural changes during the cycling process, leading to volume changes and affecting electrochemical performance.
Wenjin Qin   +7 more
wiley   +1 more source

肺动脉灌注肺保护液对体外循环相关性炎症反应影响的实验研究

open access: yesZhongguo shiyan zhenduanxue, 2010
目的探讨肺动脉灌注低温肺保护液对体外循环相关性炎症反应的影响。方法将20只杂种犬随机分为对照组和实验组。实验组在阻断升主动脉后经肺动脉灌注低温肺保护液,对照组则行常规体外循环、不灌注肺保护液,分别于诱导前(T1),转流1h(T2),停机1h(T3),停机2h(T4)抽取动脉血,测定血浆肿瘤坏死因子α(TNF-α)、白细胞介素-6(IL-6)和白细胞介素-10(IL-10)浓度。结果两组实验犬血浆TNF-α、IL-6和IL-10的浓度,在T2-T4各时点与体外循环前比较均明显增加 ...
林柏松   +4 more
doaj  

Micro‐Macro Regulation Through Co‐Intercalation of Inorganic–Organic for the V2O5·nH2O Cathode Toward High‐Performance Aqueous Zinc‐Ion Batteries

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Vanadium oxides are deemed competitive cathode candidates for aqueous zinc‐ion batteries (AZIBs), benefited from their high theoretical capacity and multiple crystalline structures. However, the sluggish reaction kinetics, poor reversibility, and high solubility have hindered the practical application.
Xiaoyu Fan   +7 more
wiley   +1 more source

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