Results 61 to 70 of about 3,378 (214)

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

磷锌肥配施对冬小麦籽粒锌生物有效性的影响/Effect of Zn and P supply on grain Zn bioavailability in wheat[J] [PDF]

open access: yes, 2011
为查明磷锌肥配施对小麦籽粒锌生物有效性的影响,本研究选用锌效率不同的4种冬小麦基因型,从P-Zn-植酸关系出发,进行了田间试验.结果表明,锌肥的施用在不同程度上降低了小麦籽粒的磷含量,磷锌比、植酸含量以及[植酸]/[Zn2+]摩尔比,降低幅度分别为0.5%、1.85%、2.7%及6.2%,提高了小麦籽粒的锌生物有效性.相对于锌肥,磷肥对小麦籽粒植酸含量及[植酸]/[Zn2+]摩尔比的影响更大:①总体上提高了小麦籽粒中的植酸含量及[植酸]/[Zn2+]摩尔比,降低了小麦籽粒锌生物有效性,以施用1 00 ...
中国科学院新疆生态与地理研究所 乌鲁木齐830011   +9 more
core  

成年人发样中镁、铝、锌、铁、铜和锰元素水平检测及其与腹型肥胖的相关性分析

open access: yesZhongguo shiyan zhenduanxue, 2017
目的了解成年人发样中镁、铝、锌、铁、铜和锰元素水平,探讨各元素含量与腹型肥胖的相关性。方法采用随机整群抽样的方法,以问卷调查、体格检查和实验室检测(ICP-MS测定发样中镁、铝、锌、铁、铜和锰元素水平)相结合的方式,收集吉林省靖宇、东辽和长岭县657名成年人的有效数据。结果不同性别成年人发样中镁、铝、锌、铁和锰元素含量比较差异有统计学意义 ...
李卓   +5 more
doaj  

Oxygen Vacancy Engineering of Ultrafine ZnAl2O4 Nanoparticles as a Robust Protective Layer for Dendrite‐Free and Long‐Lifespan Aqueous Zn Metal Anodes

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Aqueous zinc‐ion batteries (AZIBs) hold great promise for safe and sustainable energy storage, but their commercialization is impeded by severe Zn dendrite growth and interfacial instability. To address these challenges, we propose a defect engineering strategy employing ultrafine ZnAl2O4 (ZAO) nanoparticles (∼5 nm) with oxygen vacancy defects
Yilun Ren   +9 more
wiley   +1 more source

一种高分散性氧化锌颗粒及其胶体的制备方法 [PDF]

open access: yes, 2009
一种高分散性氧化锌颗粒的制备方法,包括如下步骤:①取可溶性锌盐溶于去离子水中,搅拌,配置成的质量百分比为0.1%~10%的锌盐溶液;②按锌盐与碱的摩尔比例为1∶2取碱溶于去离子水,配置成碱溶液;③取亲水性乳化剂溶于去离子水中,乳化剂加入的量为锌盐质量的0.5%~20.0%;④在20~90℃条件下,将乳化剂溶液充分搅拌,同时将锌盐溶液和碱溶液逐滴加入到乳化剂溶液中,得到白色沉淀,过滤分离; ⑤将上述分离得到的白色沉淀洗涤,40~120℃条件下干燥,即得到氧化锌粉末。氧化锌粉末超声分散于水中,加入0.1 ...
刘雪辉   +5 more
core  

NÃO É IDEOLOGIA, É LEI

open access: yesDiversidade e Educação
O artigo tem como objetivo fornecer subsídios legais para os/as educadores/as enfrentarem os desafios impostos por um contexto sociopolítico reacionário, promovendo práticas pedagógicas que valorizem a diversidade, os direitos humanos e a igualdade de gênero na escola.
Gabriela Bieger Reyes   +2 more
openaire   +1 more source

粘胶纤维生产废水处理工程介绍

open access: yesGongye shui chuli, 2000
介绍了丹东化纤工业公司粘胶纤维生产废水的水质特点、处理工艺、主要构筑物及技术参数。该系统采用了曝气吹脱除硫化物—石灰乳中和除锌—活性污泥法去除有机物的物化—生化两级处理工艺,处理效果良好,出水中各项指标均达到国家规定的污水排放标准。
李亚峰, 黄迎春
doaj  

Electrospun Carbon Nanofiber‐Based Multifunctional Electrocatalysts for Zinc‐Air Batteries and Overall Water Splitting: Fabrication, Progress, and Perspective

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT The development of high‐performance and stable electrocatalysts for oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and hydrogen evolution reaction (HER) plays a critical role in advancing clean energy technologies, including metal‐air batteries and hydrogen production through overall water splitting.
Chen‐Yu Cai   +4 more
wiley   +1 more source

含锌废水的微生物处理技术 [PDF]

open access: yes, 2005
从失活生物体和活性生物体两个角度出发,介绍了目前应用微生物法去除废水中重金属锌的研究现状,详细阐述了生物絮凝、生物吸附和硫酸盐还原菌(SRB)的代谢产物(硫化氢 ...
马锦民   +4 more
core  

Tunable Redox‐Active Anhydride‐Based Linear Polymer as Organic Cathodes for Chemically Self‐Charging Aqueous Zinc–Ion Batteries

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Chemically self‐charging aqueous zinc‐ion batteries (AZIBs) have emerged as promising candidates for energy storage technologies owing to their environmental autonomy and structural simplicity. Nonetheless, the self‐charging performance is significantly compromised by the limited potential difference between cathodes and oxygen, as well as the
Yan Wang   +5 more
wiley   +1 more source

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