Results 21 to 30 of about 13,541 (100)
Glycerophosphocholine‐Mediated Dual Regulation for Highly Stable Aqueous Iron‐Ion Batteries
ABSTRACT Iron‐ion batteries (FeIB) offer the advantages of low cost and high capacity, demonstrating potential for large‐scale energy storage. However, severe hydrogen evolution reaction (HER) occurs during cycling, which significantly impacts battery lifespan.
Tian Yang +6 more
wiley +1 more source
以废旧钴酸锂电池负极石墨为原料制备石墨烯气凝胶,研究了其对亚甲基蓝的吸附效果和吸附机理。结果表明,制备的石墨烯气凝胶具有大量的孔隙和柔软片层结构。当吸附剂投加量为2.5 g/L,亚甲基蓝初始质量浓度为50 mg/L,pH为8,温度为30℃时,20 min即达到吸附平衡,吸附率为98.6%。该吸附剂对亚甲基蓝的吸附符合Langmiur模型,最大吸附量为41.39 mg/g;吸附反应动力学符合准二级动力学方程。吸附过程包含化学吸附和物理吸附。
郑莹 +6 more
doaj +2 more sources
ABSTRACT Conventional lithium‐ion battery cathodes predominantly rely on reversible lithium intercalation in bulk, which inevitably induces phase transitions, transition metal migration, and voltage decay. Electrolytic anion adsorption pseudocapacitance provides a chance for bypassing these issues via a surface‐dominated reaction, especially in ...
Hongjin Ren +10 more
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
ABSTRACT Although alloy‐based materials present potential for peroxymonosulfate (PMS) activation, metal ion leaching remains severely restricted during the pollution degradation process. Herein, the porous carbon‐supported Fe–Cu alloy derived from industrial copper slag was prepared to remove the organic pollutants from wastewater while inhibiting the ...
Xuanren Chen +10 more
wiley +1 more source
按照金属基吸附剂、炭基吸附剂、黏土矿物类吸附剂、高分子生物类吸附剂、工业副产物或废弃物、纳米材料、陶粒等吸附剂类型,全面综述了近些年来国内外在含氟水吸附处理中吸附材料的研究开发与应用现状。着重介绍了传统吸附材料的改性和一些新型吸附材料的合成、吸附性能和机理,并对今后氟吸附材料的发展方向进行了展望。
赵迎新 +4 more
doaj +2 more sources
ABSTRACT The low energy density of sodium‐ion batteries (SIBs) remains a major barrier to their large‐scale deployment. Alloy‐based anodes represent a promising class of materials owing to their high specific capacity and low operating potential for sodium storage. However, their practical application is hindered by severe volume expansion upon cycling.
Chen Wang +10 more
wiley +1 more source
采用天然鳞片石墨经化学氧化、有机化合物插层,水洗,干燥,高温膨化的方法,制备了不同膨胀体积的膨胀石墨,以膨胀石墨和活性炭为吸附剂,工业油为吸附质,对比了膨胀石墨与活性炭对工业油的吸附能力.用重量法测定了两种吸附剂对吸附质的吸附量和滞留吸附量,并比较了两种吸附剂对吸附质的吸附量和滞留吸附量.实验结果表明膨胀石墨对实验油品的吸附量比活性炭的吸附量高13~23倍,膨胀石墨比活性炭的滞留吸附量大.膨胀石墨的膨胀体积越大,吸附性能越强.并用SEM对膨胀石墨的形貌进行了表征,探讨了膨胀石墨的吸附机理.
刘淑芬, 李冀辉
doaj
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
Recovering Critical Elements From Wastewater for Battery Materials: A Review
ABSTRACT Driven by global carbon neutrality goals, the transition toward a circular economy and sustainable resource management has become increasingly imperative. Given the indispensable role of battery technologies in modern energy storage systems, strategic elements such as lithium (Li), cobalt (Co), and nickel (Ni)—identified by the European ...
Ting Lei +5 more
wiley +1 more source

