Results 11 to 20 of about 1,270,364 (156)

Structural Distortion for Polyoxometalate‐Derived Metal Sulfide Induced by In Situ Intercalation With Organic Ligands Achieving Efficient Electrocatalytic Hydrogen Evolution Performance in Alkaline/Seawater Medium

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT The electrocatalytic water splitting technique was widely taken for hydrogen evolution, due to its cost‐effectiveness and environmental friendliness. The design of electrode material as electrocatalysts play a key role in achieving high efficiency.
Yaling Zhu   +5 more
wiley   +1 more source

3D‐Printed Porous High‐Entropy Alloy Boosts Peroxymonosulfate Activation for Long‐Term Organic Pollutant Degradation

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT High‐entropy alloys (HEAs) have attracted considerable interest from researchers owing to their tunable chemical compositions, exceptional structural stability, and promising catalytic properties. However, their large‐scale application is often hindered by complex manufacturing techniques and poor durability.
Sheng Guo   +9 more
wiley   +1 more source

Ultrafast Catalytic Decomposition Reaction Using a ZIF‐67@Cellulose Nanofiber Composite‐Based Cobalt/ Nitrogen Co‐Doped Nanoporous Carbon for Water Treatment

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Recently, cobalt/nitrogen co‐doped materials have emerged as heterogeneous catalysts to activate peroxymonosulfate (PMS) and have been applied to advanced oxidation processes for environmental remediation. However, their recyclability and reusability remain major barriers to practical application.
Wen‐Kai Zhu   +11 more
wiley   +1 more source

Synergy of Built‐In Electric Field and Surface Reconstruction of Co–NiS/Ni3S2 Nanowires for Enhanced Bifunctional Activity and Anti‐Chlorine Corrosion in Seawater Electrolysis

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT The development of efficient and stable bifunctional electrocatalysts is a key challenge for the industrialization of hydrogen production by water electrolysis. In this work, Co‐doped NiS/Ni3S2 heterostructured nanowire arrays (Co–NiS/Ni3S2 NA) were successfully constructed by precisely modulating the phase‐selective behavior of nickel ...
Xing‐Hang Liu   +2 more
wiley   +1 more source

In Situ Fabrication of Sulfate‐Grafted Mo‐Doped NiOOH for Electrocatalytic Methanol Oxidation Coupled With Hydrogen Production at Industrial‐Level Current Density

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Developing efficient and sustainable energy conversion technologies is crucial for addressing the global energy and environmental challenges. As a promising clean energy conversion strategy, the electrocatalytic methanol oxidation coupled with cathodic hydrogen production provides a pivotal path to solve the above problems.
Tao Chen   +4 more
wiley   +1 more source

Lewis Acid–Base Interactions Enable Sustained Catalytic Activity for Polysulfide Conversion in Lithium‐Sulfur Batteries

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Lithium‐sulfur batteries (LSBs) face sluggish sulfur reduction reaction kinetics and severe polysulfide shuttling issues, which significantly limit their performance. In this work, a multifunctional separator with a 3D porous framework featuring confined pore structures and selective adsorption capability is constructed to address these ...
Mengchen Zhang   +12 more
wiley   +1 more source

活化过硫酸盐技术的研究进展

open access: yesGongye shui chuli, 2012
活化过硫酸盐可产生具有强氧化能力的硫酸根自由基(SO4-),SO4-能够高效地氧化去除水中的污染物质,在环境污染治理领域有广阔的应用前景。主要介绍了国内外关于活化过硫酸盐的方法及其研究进展,包括热、过渡金属离子、光辐射、零价铁、活性炭、微波等单一方法,以及复合方法等,还介绍了SO4-的鉴定方法。最后,分析了活化过硫酸盐高级氧化技术在目前应用中存在的问题以及今后的发展方向,以促进相关研究工作的发展。
刘桂芳   +5 more
doaj  

联合活化过硫酸盐及其去除污水中污染物研究进展

open access: yesGongye shui chuli, 2021
过硫酸盐(Persulfate,PS)高级氧化工艺是去除污水中污染物的有效方法。该工艺以PS为氧化剂,将其活化后对污染物进行氧化降解。PS的不同活化方式相互联合具有协同作用,表现出超越单一活化简单加和的污染物去除效果。综述了PS的活化方式,阐述了包括过渡金属之间联合活化、非金属与过渡金属联合活化、非金属之间联合活化在内的不同类别联合活化的活化机理,讨论了联合活化PS在去除微量有机污染物中的应用现状,并对联合活化PS技术的发展前景进行展望。
李红州   +3 more
doaj  

羟胺强化Cu(Ⅱ)/过硫酸盐降解医疗废水中土霉素

open access: yesGongye shui chuli, 2021
抗生素类药物使用广泛且用量较大。其进入人体或动物体内后,可以母体结构或代谢产物形态排出体外,直接或间接进入环境并长期积累,对生态环境和人体健康构成危害。采用羟胺(HA)强化Cu(Ⅱ)/过硫酸盐体系对医疗废水中的土霉素(OTC)进行降解,研究其降解效率、影响因素及降解机理,并对降解路径进行分析。结果表明,Cu(Ⅱ)和HA的偶联可有效活化过硫酸盐(PDS)氧化降解OTC。HA、Cu(Ⅱ)浓度的提升有利于提高降解率,高浓度的PDS也可以增强OTC的降解效果,但过量PDS会造成活性氧物种损失。初始pH由3 ...
王昕
doaj  

Core-shell Fenton catalyst CuFe2O4 @ PDA-Cu: Preparation,characterization and property in dye degradation by activated H2O2(核壳 Fenton 催化剂 CuFe2O4@PDA-Cu 的制备、表征及其活化H2O2降解染料的性能)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2018
为得到新型高效多相催化剂,有效去除废水中的染料,以Cu(Ac)2与CuFe2O4@PDA为原料制备了催化剂CuFe2O4 @PDA-Cu.通过IR、XRD、XPS、UV-Vis、DRS技术对催化剂的性能进行了表征,考察了温度、H2O2用量、催化剂用量、pH值、盐等对催化活性的影响.利用HPLC测定降解产物,采用自由基捕获和抑制实验进行机理验证,发现催化剂是核壳结构.温度升高、pH值升高、H2O2和催化剂用量的增加均有利于提高催化活性;氯化物、硫酸盐、硝酸盐和磷酸盐不影响催化效果 ...
JIANGYinzhi(江银枝)   +3 more
doaj   +1 more source

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