Results 21 to 30 of about 1,535,907 (166)
Poverty &Public Policy, Volume 18, Issue 2, June 2026.ABSTRACT Rapid urbanisation and persistent socio‐economic inequality continue to entrench multidimensional poverty within South Africa's urban informal settlements, with women and female‐headed households experiencing disproportionate deprivation. This study analysed primary household survey data collected in 2023 from 322 households across three ...
Adrino Mazenda +3 more
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Engineering of the catalyst interface and modulation of transition–metal d–band play critical roles in the electrocatalytic hydrogen evolution reaction (HER). Herein, a synthetic strategy is developed to fabricate nitrogen‐doped carbon nanotubes (N–CNTs)–supported Ni3Se4–CeO2 heterojunction catalysts through a facile chemical vapor deposition (
Zhiqiang Sun +10 more
wiley +1 more source
Gongye shui chuli, 2015 用KOH对市售的粉末活性炭进行表面改性。采用BET分析改性前后活性炭的表面结构,并采用活性炭涂层电极构建电容去离子吸附装置,研究改性后电极的去离子效果。研究表明:经过KOH改性后,活性炭的比表面积从519.25 m2/g增加到975.07 m2/g,提高了87.78%,中孔孔容占总孔孔容的百分比提高了48.28%,改性后活性炭的孔隙结构和孔径的分布更有利于溶液中的Na+和Cl-通过,提高了电极的吸附速率。
蒋绍阶 +4 more
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Improving catalytic activity for volatile organic compounds (VOCs) oxidation and enhancing water‐tolerance stability remain challenging in practical applications. Herein, a composite catalyst integrating Pt/CoOx‐NiOx mesoporous nanorods (MNRs) with a phenyltriethoxysilane (PhTES)‐modified surface was fabricated via a facile route for toluene ...
Jiaqin He +13 more
wiley +1 more source
四川大学学报. 自然科学版, 2014 通过十八烷基三氯硅烷(OTS)硅烷化自组装方法,实现了普通硅酸盐玻璃的表面疏水改性,改性后的玻璃表面具有疏水性和良好的透光性.该方法首先运用氢氟酸(HF)溶液预处理玻璃表面,进行化学织构化,形成微纳结构,然后利用OTS分子在玻璃表面自组装形成疏水分子膜.实验考察了HF溶液的处理时间、OTS甲苯溶液的浓度及其处理时间、以及其他预处理方法对玻璃表面接触角的影响,得到了一种简便易行的玻璃疏水改性处理方法,能够方便的制备出接触角为107o的透明疏水玻璃.同时,运用原子力显微镜(AFM ...
曹耿 +4 more
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Gaoya dianqi, 2022 环氧树脂材料在电场作用下会出现表面电荷积聚现象导致沿面放电。为改善环氧树脂材料的直流绝缘性能，文中对环氧树脂试品表面进行局部粗糙度处理，开展闪络实验，探究局部粗糙度处理在空气、C4F7N/CO2混合气体和SF63种气体环境中对环氧树脂试样闪络特性的影响。建立二维仿真模型，通过有限元法分析局部粗糙度处理后环氧树脂材料的表面电荷特性以及陷阱分布。根据闪络实验结果，粗糙面位置不同的环氧树脂试品的沿面闪络电压在3种气体中均随表面粗糙度的增加呈现先上升后下降的趋势，并在粗糙面位于中心且表面粗糙度为1.3 ...
律方成 +5 more
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT NiTi shape memory alloys (SMAs) show excellent performance in vibration damping and corrosion resistance. However, due to low hardness and lack of self‐lubrication, they suffer severe friction and wear during service. Although various strategies including doping and heterostructure design have been proposed, the effects are unsatisfactory.
Huwen Ma +13 more
wiley +1 more source
Gongye shui chuli, 2002 滤床过滤工艺广泛应用于水处理领域，滤料表面电位对水中悬浮颗粒的过滤去除有很大的影响。石英砂滤料表面带较高的负电位，一些情况下不利于悬浮颗粒的去除。对石英砂、氧化铁改性滤料、复合改性滤料的表面电位和过滤效果的对比表明，复合改性滤料表面电位接近于中性，对水中的悬浮颗粒有稳定良好的去除效果。
盛力, 马军
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Aqueous zinc‐ion batteries (AZIBs) have attracted increasing attention in energy storage owing to their high energy density, low redox potential, and cost‐effectiveness. Nevertheless, uncontrolled dendrite accumulation, gas generation, and severe side‐reaction problems hinder the cycling lifespan, which prevents their commercial applications ...
Xiangzhong Kong +8 more
wiley +1 more source
Gongye shui chuli, 2020 凹凸棒土具有比表面积大、特殊的孔道结构及表面带有永久负电荷等特性，使其在去除废水中重金属方面有明显优势。改性凹凸棒土合成吸附材料具有低成本、绿色、安全等特性。综述了凹凸棒土功能性改性在吸附废水中Pb（Ⅱ）方面的研究进展。
何佳康 +5 more
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