Results 31 to 40 of about 15,012 (166)

Multi‐Dimensional Characterization of Sodium‐Ion Battery Materials: Bridging Atomic Structure, Interface Chemistry and Electrochemical Performance

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Sodium‐ion batteries (SIBs) have emerged as promising candidates for large‐scale energy storage due to their cost‐effectiveness and resource abundance. However, challenges such as sluggish ion diffusion kinetics, structural degradation, and interfacial instability hinder their practical applications.
Yunze Wang   +7 more
wiley   +1 more source

A Green Synthesis of Silver Gel Using Tannic Acid , its Characterization and Antibacterial Activity [PDF]

open access: yes, 2015
摘要 研究目的: 纳米银的绿色合成是近年来纳米材料研究的热点之一,现有关于纳米银的制备方法和抗菌性能研究尚缺乏统一标准。单宁酸制备纳米银凝胶是一种简便高效的方法,但其抗菌性能优劣和能否将其应用于临床治疗,国内外未见相关报道。本实验采用一种简便高效的方法制备出稳定性好和粒径均匀的单宁酸银凝胶,并对单宁酸银凝胶进行多种表征分析。在表征单宁酸银相关化学结构性质的基础上,制备出三组不同数量级别的单宁酸银抗菌凝胶,采用MTT法对其进行抗菌性能测定,优化出抗菌最佳浓度,探讨了单宁酸银凝胶对四种不同细菌的抗菌效果 ...
陈玲凤
core  

菜园土对铅的吸持解吸特性研究

open access: yesShuitu Baochi Xuebao, 2000
研究结果表明,湖南几种常见的菜园土壤对铅的吸持量大小顺序为:红灰菜园土〉紫泥菜园土〉黄沙菜园土〉红菜园土。后3种土壤对铅的吸持过程均可用Langmuir、Freundlish和Temkin方程来描述;红菜园土和黄沙菜园土的最大吸持量是5588.88mg/kg和8516.46mg/kg;除红灰菜园土以外,另外3种土壤的解吸量及解吸率都随吸持铅量的增大而大。
谭长银 岳振华
doaj   +2 more sources

Pyrolysis‐Engineered Fe/Mn‐ZIF Catalysts: Balancing Activity, Selectivity, and Stability for the Oxygen Reduction Reaction

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Metal oxide‐based catalysts for oxygen reduction reaction (ORR) have drawn great attention in recent years. However, it remains technically challenging for the precise regulation of the overall performance due to the trade‐off effect among the activity, selectivity, and stability of electrocatalysts. Herein, a balancing strategy to control the
Haoran Ma   +7 more
wiley   +1 more source

柠檬酸对蒙山茶园土壤微团聚体吸附-解吸Cu2+的影响

open access: yesShuitu Baochi Xuebao, 2016
以蒙山茶园土为对象,运用平衡液吸附法以及NaNO3溶液解吸法探讨了柠檬酸对原土及各粒径土壤微团聚体吸附-解吸Cu2+的特性,以期明确柠檬酸对土壤吸附解吸铜的过程中产生的影响。结果表明,加入柠檬酸后,随着Cu2+浓度的增加,原土和各粒径土壤微团聚体对Cu2+的吸附有所增加,吸附量大小顺序为:(<0.002 mm)>(0.053~0.002)mm>原土>(2~0.25)mm>(0.25~0.053)mm,与土壤微团聚体中游离氧化铁、阳离子交换量以及有机质含量大小顺序一致;柠檬酸对Cu2 ...
李欣雨   +4 more
doaj  

添加生物质炭对红壤性水稻土Cd2+吸附解吸特性的影响

open access: yesShuitu Baochi Xuebao, 2020
为探讨生物质炭对红壤性水稻土中镉(Cd)元素吸附解吸特性的影响,采用一次平衡法研究添加生物质炭后Cd2+在红壤性水稻土中的吸附动力学、等温吸附和解吸过程。结果表明:施用CK (0 t/hm2)、A10(10 t/hm2)、A20(20 t/hm2)、A30(30 t/hm2)和A40(40 t/hm2)生物质炭后,红壤性水稻土对Cd2+的吸附过程是以化学吸附为主、非均匀的多表面吸附。施用CK (0 t/hm2)、A10(10 t/h2)、A20(20 t/hm2)、A30(30 t/hm2)和A40 ...
胡世民   +5 more
doaj  

Achieving Ambient‐Temperature Fast Hydrogenation Properties in Ga‐Doped Mg–Ni Alloy: Dual‐Phase Synergistic Catalysis and Stacking Fault Channels

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT The high operating temperatures and sluggish kinetics of Mg‐based hydrogen storage materials (HSMs) are urgently being addressed. In this work, a novel Mg–Ni–Ga HSM with dual‐phase synergistic catalysis is developed, including the fishbone‐like Mg3Ni2Ga1 catalytic phase and the Mg2Ni phase with stacking faults (SFs).
Shiyang Hu   +7 more
wiley   +1 more source

Peptide‐Coupled Gold Nanoclusters: Syntheses, Properties, and Bioapplications

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Gold nanoclusters (AuNCs) have garnered significant attention in biomedicine. Particularly, peptide‐coupled AuNCs (Pep‐AuNCs) are emerging as a fascinating class of cluster probes that enable highly tailorable design in their optical, catalytic, targeting, and therapeutic capabilities via peptide engineering.
Jie Liu   +5 more
wiley   +1 more source

Bimetallic NiCo Loaded on the Nitrogen‐Rich Modified Lignin‐Derived Carbon Coordination Network for Accelerated Oxygen Reduction Kinetics

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT The development of novel oxygen electrocatalysts with cost‐effectiveness, scalability, high catalytic activity, and stability presents a significant challenge for zinc–air batteries (ZABs). The nitrogen‐rich lignin coordination network structure is synthesized through amine modification of lignin.
Ping‐Xian Feng   +8 more
wiley   +1 more source

吸附型血液解毒装置实验研究报告

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 1981
目前,吸附型血液解毒装置的研究,在国际上正广泛开展,并已正式应用于临床。它可作为急救解毒装置、吸附型人工肾脏、人工肝脏的主要部件。近年,我国天津等地研制成功血液解毒装置,包括吸附罐、包囊活性炭及其管道系统。我们用该装置作家犬戊巴比妥中毒解毒作用的实验研究,对其吸附解毒性能和血液毒物浓度进行了动态观察,现将实验结果报告如下。
李士梅
doaj  

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