Results 21 to 30 of about 1,865,093 (146)
ABSTRACT Ultrathin, lightweight, and mechanically compliant electromagnetic interference (EMI) shields are increasingly required for high‐frequency electronic devices. However, conventional metallic shields predominantly rely on conductivity‐driven reflection mechanisms, which become ineffective at reduced thickness and may cause severe secondary ...
Zida Zhang +7 more
wiley +1 more source
酚类化合物的毒性高、难降解,其处理工艺受到研究者的普遍关注。阐述了高级氧化技术降解含酚废水的作用机理,对湿式氧化、光催化氧化、电催化氧化、超声波氧化等除酚工艺的国内外研究进展和发展趋势进行了介绍,并分析了各工艺的特点与优势,最后对高级氧化工艺处理含酚废水的应用前景进行展望。
高超, 王启山, 夏海燕
doaj +2 more sources
由于水中As(Ⅲ)的直接去除较难, 处理过程中多将As(Ⅲ)氧化成As(Ⅴ)后进行去除。重点介绍了水中As(Ⅲ)的两类氧化法(氧化剂直接氧化法和高级氧化法)的原理和研究进展。其中氧化剂直接氧化法中主要介绍了H2O2、锰氧化物、铁及其氧化物和氯氧化物等氧化剂;高级氧化间接氧化法中主要介绍了TiO2光催化氧化、电催化氧化、超声波氧化和过硫酸盐氧化。最后, 对As(Ⅲ)氧化的发展方向进行了展望。
刘桂芳 +6 more
doaj +2 more sources
ABSTRACT Lithium–sulfur (Li–S) batteries are promising for next‐generation high‐energy‐storage systems but are hindered by polysulfide shuttle, sluggish kinetics, and volume expansion. Conventional carbon hosts struggle to simultaneously anchor and convert polysulfides efficiently.
Ling Chen, Peng Xu, Jiaojing Shao
wiley +1 more source
ABSTRACT Rationally designing an electrocatalyst to achieve stable and efficient urea oxidation reaction (UOR) is crucial but still challenging, especially for ampere‐level application. Herein, Mn and Fe dual‐doped Ni0.85Se (Mn/Fe–Ni0.85Se) catalyst is synthesized via a facile and scalable electrodeposition and followed by selenization.
Guanglin Zhu +6 more
wiley +1 more source
近年来,以产生大量自由基(OH)为主体的高级氧化技术越来越受到人们的关注。作为高级氧化技术的一种新形式,多相催化臭氧化技术将催化剂的吸附性、催化作用和臭氧的氧化能力很好地结合起来,可大幅提高有机物的矿化度,而催化剂在该技术对不同有机物的净化过程中起到了重要的作用。介绍了催化臭氧化过程的反应机理,综述了不同催化剂在催化臭氧氧化处理水中的最新应用。
耿媛媛 +3 more
doaj +2 more sources
ABSTRACT The electrocatalytic co‐reduction of CO2 and nitrate (NO3− ${\text{NO}}_{3}^{-}$) to synthesize urea presents a sustainable alternative to traditional industrial processes, yet its efficiency is fundamentally limited by the kinetically mismatched activation and coupling of CO2 and NO3− ${\text{NO}}_{3}^{-}$.
Jiayu Liu +9 more
wiley +1 more source
ABSTRACT The healing of diabetic chronic wounds is hindered by multiple pathological barriers, including oxidative stress imbalance induced by hyperglycemia, persistent bacterial infection, and impaired neovascular function. This study developed an F127–HA–BiOCl@CeO2 (FHBC) hydrogel dressing with acoustic responsiveness, achieving tissue repair through
Ran Zhao +8 more
wiley +1 more source
一种用于甲苯液相催化氧化制备苯甲酸和苯甲醛的锰氧化物催化剂及其制备方法和应用,锰氧化物可以是二氧化锰、三氧化二锰、四氧化三锰和氧化亚锰以及其它混合价态的锰氧化物,该催化剂可以通过热分解法、水热法或者是沉淀法制备。该催化剂可在分子氧的存在下应用于甲苯液相氧化,具有较高的活性、选择性和稳定性 ...
李晓强 +4 more
core
ABSTRACT A central challenge in alkaline water electrolysis is the development of hydrogen evolution reaction (HER) electrocatalysts that simultaneously maintain high activity and structural stability at industrial current densities. Hydroxide‐based supports that facilitate water dissociation are particularly susceptible to over‐reduction and ...
Feng Chen +9 more
wiley +1 more source

