Results 91 to 100 of about 6,889 (261)

Biomimetic Gradient Hydrogels Regulate Osteochondral Regeneration Microenvironment Remodeling via Spatiotemporal Programming Engineering

Advanced Science, EarlyView.
Electric field‑driven continuous gradient hydrogel GHZF4 achieves spatiotemporal growth factor release, modulates immune microenvironment, angiogenesis and osteochondral differentiation. It realizes cell‑free functional osteochondral repair in rat/rabbit models, offering a promising biomimetic strategy for gradient tissue regeneration.
Xiaolian Niu, Shengzhao Xiao, Di Huang, Xuesong Wang, Yanwei Cao, Xiaodan Sun, Nicholas Dunne, Xiaoming Li   +7 more
wiley   +1 more source

Synthesis of Double-Shelled LiMn2O4 Hollow Microspheres with Enhanced Electrochemical Performance for Lithium Ion Batteries

International Journal of Electrochemical Science, 2013
Double-shelled LiMn2O4 hollow microspheres have been prepared from hydrothermally synthesized urchin-like α-MnO2 spheres. A large hollow interior and broad gap between exterior and interior shells are clearly observed within the hollow microspheres ...
Shuquan Liang, Juan Yi, Anqiang Pan
doaj   +1 more source

XI. On cathode and canal rays from hollow cathodes [PDF]

The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science, 1908
n ...
openaire   +2 more sources

Overcoming the Catalytic Bucket Effect in Pt‐based High‐Entropy Nanocages Through Interface Defect and Strain Engineering

Advanced Science, EarlyView.
PtPdNiCuMnAu HENCs exhibit a remarkable half‐wave potential (E1/2) of 0.925 V vs. RHE. The catalyst displays exceptional electrochemical stability, with only a 4 mV negative shift in E1/2 and a mere 5.6% loss in MA after 10, 000 accelerated durability test cycles.
Qian Liu, Haoran Kang, Yiou Liu, Xiaowei Zhang, Xu Chen, Faming Gao   +5 more
wiley   +1 more source

Continuous‐Flow Microfluidic Synthesis Enhances C2+ Selectivity for Cu2O Catalysts

Advanced Science, EarlyView.
Microfluidic devices are used to prepare Cu2O nanoparticles under laminar flow conditions, which exhibit enhanced selectivity in the CO2‐to‐C2+ reaction due to their nanoporosity and high defect concentration. Cu2O prepared using standard solution methods displays decreased CO2‐to‐C2+ selectivity due to the absence of similar properties. Altogether, we
Carlota Casas, Anh Tuan Ngo, João Pedro Vale, Ona Falcó, Gerard Martí, Mohamed Amazian, Júlia Mayans, Sònia Estradé, Marcos Gil‐Sepulcre, Teresa Andreu, Francesca Peiró, Tiago Sotto Mayor, Lluís Yedra, Jordi García‐Antón, Josep Puigmartí‐Luis, Xavier Sala, Roc Matheu   +16 more
wiley   +1 more source

Hollow Cathode Arcs [PDF]

Europhysics News, 1989
H. Kempkens, J. Uhlenbusch
openaire   +1 more source

Machine Learning–Guided Surface Strain Engineering in Connected Platinum–Nickel Nanoparticle Catalysts for Advanced Oxygen Reduction Performance

Advanced Science, EarlyView.
Machine learning‐guided strain engineering enables highly active, durable, support‐free Pt–Ni nanonetwork catalysts for the oxygen reduction reaction. Analysis of a Pt‐based catalyst dataset identifies surface compressive strain as an effective descriptor associated with enhanced activity and provided practical design guidelines.
Aparna Chitra Sudheer, Gopinathan M. Anilkumar, Hidenori Kuroki, Yuuki Sugawara, Takeo Yamaguchi   +4 more
wiley   +1 more source

In Situ Alkali Metal Exfoliation‐Coupled Dilute CO2 Electrolysis to Synthesize Interlayer‐Expanded Graphite for High‐Rate Lithium Storage

Advanced Science, EarlyView.
Converting CO2 into advanced carbon materials capable of meeting the rapid lithium storage demands of lithium‐ion batteries creates a mutually beneficial scenario for both energy and environmental sectors. Here, we propose a stepwise CO2 electrolysis approach to transform dilute CO2 into interlayer‐expanded graphite using molten salt electrolyzers ...
Hao Zha, Xiaodan Zhang, Xinyu Li, Jiajun Li, Yuxin Wu, Xiaoyang Wang, Huayi Yin, Dihua Wang, Bowen Deng   +8 more
wiley   +1 more source

Ferroelectric Catalysts in the Hydrogen Evolution Reaction: A Perspective

Advanced Science, EarlyView.
This perspective summarizes recent advances in ferroelectric (FE) catalysts for the hydrogen evolution reaction (HER). It first introduces HER fundamentals and FE mechanisms, then classifies FE catalysts into single‐phase, single‐atom‐modified, heterostructured, and other engineered types, with representative examples.
Rongxuan Lu, Weizhen Meng, Zhenxiang Cheng, Judy N. Hart, Michael Ferry, Sean Li, Wenxian Li   +6 more
wiley   +1 more source

Breaking the Kinetics–Loading Trade‐Off in Zinc‐Ion Hybrid Capacitors Through Synergistic Electron–Ion Transport Design

Advanced Science, EarlyView.
High‐mass‐loading carbon cathodes are essential for practical zinc‐ion hybrid capacitors but suffer from severe transport limitations. By combining low‐tortuosity freeze‐dried pore channels with carbon nanotube conductive networks, simultaneous optimization of ion and electron transport is achieved, enabling high‐rate, long‐life pouch cells and ...
Jiacheng Wu, Yangyang Wang, Fangzhou Liu, Fangxin She, Justin Prabowo, Di Zhu, Xin Yang, Li Wei, Yuan Chen   +8 more
wiley   +1 more source