Results 11 to 20 of about 1,257,163 (149)

Enhanced Oxygen Reduction Reaction Performance of Fe‐N4 Single‐Atom Catalysts Through Fe3C Coupling

Rare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Understanding the electronic factors contributing to the high oxygen reduction reaction (ORR) activity of Fe‐N4 sites remains a significant challenge due to the localized Fe 3d orbitals and their sensitivity to the coordination environment.
Shichang Cai, Yapeng Cheng, Chaoqi Zhang, Qian Xue, Jiachen Ma, Jiawei Zhu, Fanglin Wu, Siqi Sun, Zihan Meng, Ding Chen, Qing Wang, Yagang Feng, Meng Liu, Hanlu Zhang, Xiaoxiao Li, Di Lu, Naying Zhang, Chaoqun Chen, Haining Zhang, Andreu Cabot   +19 more
wiley   +1 more source

内旋流流化床颗粒运动的研究 [PDF]

, 2000
内旋流流化床供风的速度较低、颗粒的流动属于稠密气固两相流，利用通常的测量手段研究内旋流流场，尤其是颗粒的速度场存在一定的困难，由于内旋流流化床是一种近似二维床，可以利用瞬态平面二维速度场测量技术（ＰＶ和ＤＰＩＶ）测量流化床某一断面的颗粒流场。对实验室原有的ＤＰＩＶ系统进行了改进，并用该系统初步研究了内旋流流化床颗粒运动的速度场 ...
田文栋, 魏小林, 盛宏至, 吴东垠   +3 more
core  

Engineering Stress‐Decoupled SnP2O7@Carbon Core Shell via Spatial Confinement for Cycling‐Stable Sodium Storage

Rare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Tin‐based composite oxides typically undergo severe volume variations and exhibit poor intrinsic conductivities despite their high theoretical capacity as promising anode candidates for sodium‐ion batteries. This results in rapid structural degradation and capacity fading upon cycling.
Yongmei Sun, Mei Ma, Wenfang Cui, Qingwen Fan, Peng Fu, Lingxing Zeng   +5 more
wiley   +1 more source

Two‐Dimensional Catalysts for Enhanced Hydrogen Storage in Magnesium Hydride: Materials, Mechanisms, and Future Perspectives

Rare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Magnesium hydride (MgH2) is a promising solid‐state hydrogen storage material due to its high gravimetric capacity and excellent reversibility. However, its practical application is hindered by high thermodynamic stability and sluggish reaction kinetics.
Xingyang Chen, Dingyan Hu, Xuandi Cao, Fuying Wu, Yuxin Wang, Evgeny Sergeevich Lapin, Liuting Zhang   +6 more
wiley   +1 more source

Surface Reconstruction of Ce‐Ion‐Doped Fe‐MOF for Efficient Water Oxidation

Rare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Surface reconstruction plays an important role in catalysts for the efficient oxygen evolution reaction (OER). In this work, we report the designed synthesis of the Ce‐ion‐doped Fe‐MOF (CFM) directly grown on nickel foam via a facile solvothermal route.
Fangfang Zhang, Yi Liang, Jianmin Yu, Yifang Wu, Hui Mao, Guocan Jiang, Dae Joon Kang, Yongteng Qian, Huan Pang   +8 more
wiley   +1 more source

细颗粒物（PM2.5）与呼吸系统疾病的关系及机制

Zhongguo shiyan zhenduanxue, 2014
近年来,随着我国城市化进程加快、人口增加以及能源消耗持续上升,大气污染日趋严重,区域性灰霾频发。研究显示,大气中漂浮的颗粒物（PM）,特别是空气动力学粒径小于2.5μm的细颗粒物（PM2.5）是引起灰霾天气的主要原因之一。大量大气环境学研究结果显示,PM成分非常复杂,主要包括粉尘和盐类等无机颗粒、多环芳烃等有机颗粒、有机碳/无机碳（OC/EC）等碳类颗粒、微量重金属（铅、铬、镍和铜等）、富含各类离子的液态颗粒、生物性物质（花粉、真菌和病毒）以及与污染（氮氧化物、硫氧化物、臭氧）等反应生成的二次颗粒物 ...
滕博, 王贺彬, 汪雅芳, 沈妙言, 孔德霞, 张学磊, 赵丽晶   +6 more
doaj  

Laser‐Patterned Antibacterial Microgrids With Silver Nanoparticles for Autonomous Sterilization on Public Escalator Belts

Rare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT The past few decades have witnessed multiple outbreaks of pandemics. Hygiene in public facilities is one of the key factors in maintaining public health security. Escalator belts, as frequently touched by passengers, become a potential medium for spreading pathogens.
Yang Xu, Yee Him Timothy Chan, Xupeng Lu, Ruohan Yu, Yexin Pan, Siyu Chen, Haosong Zhong, Le Jing, Cuiyun Yang, Yangyi Huang, Yi Chen, Minseong Kim, Mitch Guijun Li   +12 more
wiley   +1 more source

铁盐对好氧污泥颗粒化进程的强化作用

Gongye shui chuli, 2018
采用在絮状好氧污泥中短期投加聚合氯化铁（PFC）的方式来加速污泥的颗粒化进程，考察了期间颗粒污泥的形态特征和对主要污染物的去除效果。投加PFC后，反应器内的污泥在第35天实现了完全颗粒化，比对照组提前了10 d，并拥有更高的污泥浓度和更好的沉降性能。在颗粒完全成熟后，加药组对COD、NH4+-N的平均去除率分别达到97.8%、76.5%，分别比对照组高出3.3%、5.5%，说明铁盐对好氧污泥的颗粒化进程具有明显强化作用。
王悦灵, 高湘, 刘强
doaj   +2 more sources

Rapid Removal of Binder From Spent Lithium‐Ion Batteries by Microwave Radiation for Enhanced Flotation Separation of Anode and Cathode Materials

Rare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Achieving rapid and selective separation of anode and cathode materials remains a critical challenge in the recycling of spent lithium‐ion batteries. This study develops a microwave‐enhanced flotation strategy for the efficient recovery of cathode and anode materials.
Peiyuan Ye, Ruiting Zhan, Dawei Fang, Zhouguang Lu, Feng Jiang, Zhenghe Xu   +5 more
wiley   +1 more source

污泥快速颗粒化降解有机物过程研究

Gongye shui chuli, 2014
在SBR反应器中驯化培养好氧颗粒污泥。考察颗粒污泥物理性能变化和有机物降解效果，研究好氧颗粒污泥在低浓度有机废水中的适应性。实验结果表明，污泥颗粒化进程快，反应器运行第14天时，出现粒径为3~6 mm，表面光滑有光泽的颗粒污泥，对COD的去除率保持在85%以上；降低COD后，NH3-N、TP的去除率分别为74%和90%；系统对甲醇有去除作用但效果不理想，最终去除率只达到24.28%。
赵霞, 王晓春, 董立超, 孔秀琴, 邱浩然   +4 more
doaj   +2 more sources