Results 21 to 30 of about 122,893 (146)
ABSTRACT The commercialization of lithium‐sulfur batteries (LSBs) faces dual challenges of sluggish sulfur redox kinetics and lithium polysulfides (LiPSs) shuttling. Herein, we demonstrate a synergistic strategy combining multidimensional structural confinement with d‐band center modulation to simultaneously suppress LiPSs diffusion and catalyze ...
Shibo Rong +8 more
wiley +1 more source
有机磷农药的长期大量使用会造成土壤、水体等生态环境的污染,进而危害人类健康。作为有机磷农药的代表,毒死蜱使用后在水中的残留时间长、毒性大,被多个国家禁用,而在我国仍有使用。以球形铁碳粒子作为粒子电极,构建三维电极-电Fenton体系处理毒死蜱模拟废水,探讨不同操作条件对废水中COD和有机磷去除率的影响,采用正交试验探究各因素的影响程度。结果表明:与活性炭纤维、泡沫镍相比,不锈钢作为阴极材料时对废水中的COD和有机磷去除效果较好。以不锈钢为阴极,适量Na2SO4为电解质,在电流密度为16 mA/cm2 ...
陈子杨, 黄胜, 余健
doaj +2 more sources
ABSTRACT Methanol‐assisted hydrogen generation reduces energy consumption while maintaining high hydrogen productivity. However, constructing bifunctional catalysts with high hydrogen evolution reaction (HER) activity, CO tolerance, and long‐term stability remains challenging.
Xiaoyu Zheng +5 more
wiley +1 more source
ABSTRACT Electromagnetic wave absorption materials require high dielectric loss and excellent impedance matching performance. However, current conventional biomass‐derived electromagnetic wave absorption materials are still limited by low electrical conductivity and a single structure.
Yue Zhang +9 more
wiley +1 more source
为了进一步探究、提高绿色缓蚀剂的缓蚀性能和缓蚀机理,研究了一种Q235碳钢材料的复合绿色缓蚀剂。利用重量法、阻抗图谱(EIS、Bode)、动电位极化曲线、扫描电子显微镜(SEM)及能谱分析(EDS)探讨了在自来水介质中,钨酸钠、葡萄糖酸钠和Zn2+对Q235碳钢材料的缓蚀协同作用。结果表明:钨酸钠、葡萄糖酸钠和Zn2+三元药剂在该体系中有较强的协同缓蚀作用。当钨酸钠、葡萄糖酸钠、Zn2+质量浓度分别为40、20、4 mg/L时,协同缓蚀效果最好,缓蚀率最高达到90%以上 ...
刘会媛 +3 more
doaj +2 more sources
ABSTRACT Semiconductor photocatalysis represents a pivotal frontier in the quest for sustainable energy and environmental remediation. Among the diverse catalytic materials, Bismuth Oxychloride (BiOCl) has emerged as a particularly promising candidate due to its unique layered structure, featuring [Bi2O2]2+ layers intertwined with halogen ions, which ...
Liu Han +5 more
wiley +1 more source
以微生物电解池为平台,考察了阴极电势,pH以及初始乙酸盐浓度对乙酸还原及其丁酸、乙醇等产物积累的影响.结果显示,恒定阴极电势-900mV(vs.Ag/AgCl)、pH6.0时,初始乙酸钠浓度为1.0g/L时,丁酸产量最高,可达到80(±5)mg/L,乙醇积累26(±5)mg/L.在-900mV阴极电势下,总碳回收率达到63.2%,产物电子回收率为13.06%;在-800mV阴极电势下,总碳回收率达到42.8%,产物电子回收率为54.4%.控制阴极电势-850mV,初始乙酸钠浓度由1g/L增加到5g/L ...
王娟 +5 more
doaj
ABSTRACT The development of lightweight, high‐attenuation, and broadband carbon‐based electromagnetic wave absorbers is hindered by the intrinsic trade‐off between impedance matching and dielectric dissipation. Herein, we report a facile and scalable synthesis of N‐doped lignin‐derived interconnected porous carbon (Nx‐LIPC) via hydrogen‐bond self ...
Bin‐Peng Zhang +7 more
wiley +1 more source
一种用于多硫化钠/溴储能电池的多孔碳基电极制作方法,电极是由导电碳材料、活性碳颗粒、聚合物粘结剂和造孔剂热压的方法制备。本发明操作简单,成本较低,适合大批量生产。电极的非对称结构容易控制,制备的电极有较高的机械强度,良好的导电性,在多硫化钠/溴储能电池中表现出很好的活性、化学和电化学稳定性,得到高的性能。本发明具有较高实用价值,可以降低多硫化钠/溴储能电池的使用成本,促进多硫化钠/溴储能电池的商业化应用 ...
周汉涛 +3 more
core
ABSTRACT Aqueous zinc‐ion hybrid capacitors (ZICs) bridge the gap between high‐energy batteries and high‐power supercapacitors, yet their performance is fundamentally bottlenecked by the micropore confinement effect in carbon cathodes, which restricts hydrated Zn2+ transport and active site utilization.
Qian Li +12 more
wiley +1 more source

