Results 21 to 30 of about 1,471,995 (169)
Engineering Geometric Active Sites in Cobalt Spinel Oxides for Energy and Environmental Catalysis
ABSTRACT Cobalt‐based spinel oxides (Co3O4 and derivatives) are among the most promising transition metal oxides for electrochemical energy conversion and environmental catalysis due to their abundant active sites, structural tunability, and robust redox flexibility.
Shenning Liu +6 more
wiley +1 more source
ABSTRACT Engineering the semiconductor/dielectric interface is crucial for advancing two‐dimensional (2D) nanoelectronics, where device performance is predominantly governed by interfacial defects and dielectric coupling. Optoelectronic doping based on carrier trapping at the h‐BN/SiO2 interface has enabled non‐volatile and reversible carrier ...
Zhe Zhang +6 more
wiley +1 more source
针对苏南某化工企业油漆、涂料、树脂和高沸点溶剂等产品生产过程中排放的高浓度化工废水处理, 中试结果表明:当两相厌氧COD负荷为5.6 kg/(m3·d), 一级好氧COD负荷1.47 kg/(m3·d), 二级好氧负荷COD 0.035kg/(m3·d), 且废水温度高于20℃时, 两相厌氧—二级好氧生化系统的COD平均去除率高于95%;工程化应用表明:该工艺具有处理效果好、耐冲击、运行稳定、处理成本低的优点, 当废水温度维持在20℃以上时, 两相厌氧—二级好氧生化系统COD平均去除率达98%以上。
邹敏 +4 more
doaj
ABSTRACT Sodium metal batteries (SMBs) are regarded as promising candidates for next‐generation energy storage systems owing to their high theoretical energy density and low cost. However, their practical development is hindered by the instability of the electrode–electrolyte interphase (EEI), particularly under high‐voltage operation.
Xingyu Yang +10 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
ABSTRACT Single‐atom catalysis hinges on fundamental challenges in precisely controlling metal‐support interactions and rationally regulating metal–adsorbate relationships. Herein, we report a universal strategy for constructing highly efficient and well‐defined Cu(I) single‐atom catalysts based on a trifurcate AlL3 molecular support.
Donghui Zhang +9 more
wiley +1 more source
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
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
ABSTRACT High‐power piezoelectric ceramics which have a wide operating temperature range are essential for sensor and actuator applications in extreme conditions. However, their development is fundamentally hindered by the inherent trade‐off among key parameters (TC, d33, Qm).
Rui Yan +10 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
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