Results 41 to 50 of about 6,093 (152)

FeCoNiCuPt High‐Entropy Alloy as a Robust Catalytic Shield Against Polysulfide Shuttling in Li–S Batteries

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Efficient catalytic materials are vital for addressing the polysulfide shuttle and sluggish redox kinetics in lithium–sulfur batteries. Herein, we report a facile sugar‐blowing method to prepare porous carbon‐supported FeCoNiCuPt high‐entropy alloy (HEA) nanospheres with abundant lattice defects in a single crystalline phase.
Guixiang Zhong   +8 more
wiley   +1 more source

我国复合型无机高分子絮凝剂的研究及应用进展

open access: yesGongye shui chuli, 2008
对无机高分子絮凝剂进行了分类,综述了聚合氯化铝铁、聚合硫酸铝铁、聚合硅酸铝铁等阳离子复合型絮凝剂,聚合硫酸氯化铝、聚合硅酸硫酸铝、聚合硅酸氯化铝、聚合磷酸氯化铝、聚合硫酸氯化铁、聚合硅酸硫酸铁、聚合磷酸硫酸铁等阴离子复合型絮凝剂,聚合硫酸氯化铝铁、聚硅酸硫酸铝铁、聚合磷硫酸铝铁等阴阳离子复合型絮凝剂的国内研究进展,指出复合型无机高分子絮凝剂由于其净水效果好而成为当前开发的重点和今后的发展方向。
王万林
doaj   +2 more sources

From Dendrite Accelerator to Suppressor: Engineering a Self‐Assembled Monolayer for Ultrafast and Dendrite‐Free Zinc Deposition

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Aqueous zinc‐ion batteries are plagued by anode challenges such as dendrite growth and corrosion, which stem from intrinsic surface heterogeneity. Although constructing a homogeneous interfacial layer is a promising strategy, conventional electrolyte additives often suffer from incomplete or unstable coverage.
Ke Huang   +6 more
wiley   +1 more source

聚合硫酸铁的制备、改性及应用研究进展

open access: yesGongye shui chuli, 2023
聚合硫酸铁(PFS)作为一种无机高分子混凝剂,较传统混凝剂具有更强的混凝和吸附能力,被广泛应用于饮用水、工业废水和生活污水的处理中。近年来,随着我国经济的快速发展和双碳理念的深入人心,混凝剂的市场需求量正在逐年增加。综述了制备聚合硫酸铁常用的催化氧化法、直接氧化法和生物氧化法3种方法,分析了常用催化剂和氧化剂的优缺点。通过分析聚合硫酸铁无机阴、阳离子改性和有机高分子改性等改性方法的最新研究进展,介绍了聚磷酸硫酸铁、聚合硫酸铁铝、聚合硫酸铁锌、钙化聚合硫酸铁、稀土镧聚合硫酸铁、聚合硫酸铁钛 ...
秦怀婷, 曾小林, 刘程琳
doaj  

MXene‐Based Materials Contribute Better Alkali Metal–Chalcogen Batteries: Progress, Challenges, and Perspectives

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Alkali metal–chalcogen batteries (AMCBs) are one of the most promising next‐generation energy storage systems because of their high energy density and reasonably low cost. However, the practical application of AMCBs is severely hindered by the volume expansion of the chalcogen cathode, the shuttle effect of polychalcogenides, and unstable ...
Yong Liu   +11 more
wiley   +1 more source

天然气中微量总硫的快速测定法

open access: yes四川大学学报. 自然科学版, 1980
前言天然气中含有少量的有机硫与无机硫.其有机硫的基本组分多半为低沸点的硫醇、硫茂、气态的硫羰和二硫化碳.无机硫主要是硫化氢与二氧化硫.由于天然气在井中,因温度高,各组分均有可能存在,但经过输气管配气后,将有一部冷凝,一部分则以蒸气状态残留,故含量较微。此等硫化物在天然气催化过程中,常引起催化剂中毒,因此生产控制要求测定总硫量.据文献介绍气体中总硫量的测定,常用燃烧一氧化法与燃烧一氢化法 ...
顾永祚, 张万福, 李芳林
doaj  

Recent Advances in Piezocatalysis and Piezo‐Photocatalysis in Energy and Environment: Materials, Design, and Applications

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Piezocatalytic technology utilizes mechanical strain or stress‐induced piezoelectric phenomena to produce robust internal electric fields, markedly improving the separation efficiency of e−‐h+ pairs. This method has emerged as a focal point in catalysis by removing reliance on conventional light or electrical energy via its mechanical‐to ...
Yue Zhou   +5 more
wiley   +1 more source

控释肥硫膜对酸性棕壤淋溶特性的影响

open access: yesShuitu Baochi Xuebao, 2006
为预测硫包膜控释肥施用后大量硫膜残留对土壤生态系统造成的危害,设置硫膜材料添加量不同的室内淋溶试验,以研究控释肥硫膜材料对土壤淋溶特性的影响。研究结果表明;成分和量等同于硫膜的粉状硫磺可显著改变酸性棕壤淋溶液的pH和EC值及K^+、Na^+、Ca^2+、Mg^2+、SO42-的浓度,5次淋溶累计淋失的K^+、Na^+、Ca^2+、Mg^2+、SO4^2-随粉状硫磺加入量的增加而增加。而硫包膜尿素处理除对土壤SO4^2-、K^+淋溶影响不明显外,对其他指标的影响较明显。试验同时发现 ...
张昌爱, 张民, 陈凌霞, 李素珍
doaj   +2 more sources

富硫废水中稳定生物单质硫效果与机制研究

open access: yesGongye shui chuli
为提高含硫废水同步脱氮除硫工艺中生物单质硫回收率,开展了富硫废水中稳定生物单质硫效果与机制研究。在富硫废水(S2-质量浓度300 mg/L)和贫硫废水(S2-质量浓度200、100 mg/L)中添加阻断剂硫代硫酸钠进行脱氮除硫实验。结果表明,富硫废水中稳定组(加30 mg/L阻断剂)在60 h时单质硫积累量达到68.79 mg/L,比未稳定组(不添加阻断剂)高25.34 mg/L,单质硫稳定率达58.31%,单质硫回收率为36.84%;而贫硫废水(S2-质量浓度为200、100 mg/L)中单质硫不稳定,
徐金兰   +4 more
doaj   +2 more sources

湿法烟气脱硫废水处理研究进展

open access: yesGongye shui chuli, 2015
湿法烟气脱硫工艺是现阶段世界范围内应用最广泛的脱硫工艺,该工艺不可避免地会产生一定量废水。介绍了脱硫废水的产生原因及危害,对脱硫废水处理工艺的研究现状和不足进行了阐述,并结合水质特点综述了脱硫废水中各污染物的处理方法。在此基础上对脱硫废水中氯离子、硫酸根、COD及硒的处理方法提出了展望。
施云芬, 王旭晖
doaj   +2 more sources

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