Results 131 to 140 of about 768,428 (240)

Tuning the Electronic Structure and Spin State of Fe─N─C Catalysts Using an Axial Oxygen Ligand and Fe Clusters for High‐Efficiency Rechargeable Zinc–Air Batteries

Advanced Functional Materials, EarlyView.
A FeN4─O/Clu@NC‐0.1Ac catalyst containing atomically‐dispersed FeN4─O sites (medium‐spin Fe2+) and Fe clusters delivered a half‐wave potential of 0.89 V for ORR and an overpotential of 330 mV at 10 mA cm−2 for OER in 0.1 m KOH. When the catalyst was used in a rechargeable Zn–air battery, a power density of 284.5 mW cm−2 was achieved with excellent ...
Yongfang Zhou, Yu Mao, Mengyao Chang, Ziyun Wang, Wenke Xie, Cuizhu Ye, Shanghai Wei, Lars Thomsen, Geoffrey I. N. Waterhouse   +8 more
wiley   +1 more source

Atomically Revealing Bulk Point Defect Dynamics in Hydrogen‐Driven γ‐Fe2O3 → Fe3O4 → FeO Transformation

Advanced Functional Materials, EarlyView.
In situ TEM uncovers the atomic‐scale mechanisms underlying hydrogen‐driven γ‐Fe2O3→Fe3O4→FeO reduction. In γ‐Fe2O3, oxygen vacancies cluster around intrinsic Fe vacancies, leading to nanopore formation, whereas in Fe3O4, vacancy aggregation is suppressed, preserving a dense structure.
Yupeng Wu, Dongxiang Wu, Wenhui Zhu, Xiaobo Chen, Zhikang Zhou, Zhilu Liang, Shuonan Ye, Meng Li, Xiao Tong, Kim Kisslinger, Sooyeon Hwang, Dmitri Zakharov, Renu Sharma, Judith C. Yang, Guangwen Zhou   +14 more
wiley   +1 more source

Vidéo d’introduction

Perspectives Médiévales, 2017
Marie-Madeleine Castellani, Véronique Dominguez   +1 more
doaj   +1 more source

Droplet Triboelectrification on Liquid‐Like Polymer Brushes

Advanced Functional Materials, EarlyView.
This work investigates the triboelectrification of water droplets on polymer brush‐coated surfaces exhibiting minimal contact line pinning. Such surfaces enable the systematic study of electrode patterning and controlled changes in droplet contact area.
Mohammad Soltani, Adel Malekkhouyan, Araz Rajabi‐Abhari, Behrooz Khatir, Ning Yan, Kevin Golovin   +5 more
wiley   +1 more source

From Barriers to Solutions: A Design Synthesis to Improve Video Visit Experience for Older Adults. [PDF]

J Patient Exp
Philpot LM, Ramar P, Canning RE, DeZutter MA, Dulohery Scrodin MM, Johnson MG, Roellinger DL, Ebbert JO.   +7 more
europepmc   +1 more source

Photo‐Switching Thermal and Lithium‐Ion Conductivity in Azobenzene Polymers

Advanced Functional Materials, EarlyView.
Light‐responsive azobenzene polymers control thermal and ionic transport simultaneously through structural transitions. UV illumination disrupts π–π stacking, converting crystalline trans states to amorphous cis configurations. Thermal conductivity drops from 0.45 to 0.15 W·m−1·K−1 while Li+ diffusivity increases 100 fold. This dual transport switching
Jaeuk Sung, Jungwoo Shin, Qiujie Zhao, Minjee Kang, Christopher Evans, Cecilia Leal, Paul V. Braun, David G. Cahill   +7 more
wiley   +1 more source

Vidéo : Conférences inaugurales

Perspectives Médiévales, 2017
Philippe Le Guillou, Jacqueline Cerquiglini-Toulet   +1 more
doaj   +1 more source

Quality and reliability of anterior cruciate ligament injury-related short Chinese videos on Bilibili and TikTok: Cross-sectional study. [PDF]

Digit Health
Ma T, Li X, Yu Z, Qu W, Xie W, Cong H.
europepmc   +1 more source

Performances des mécanismes de robustesse de H.264/AVC sur un lien sans fil

, 2006
Le standard H.264/AVC suscite depuis quelque temps un intérêt croissant de la part de la communauté réseau. D'un point de vue réseau, le principal apport de ce standard réside dans l‘introduction d‘une couche d‘adaptation réseau appelé NAL (Network ...
Achir, Nadjib, Benayoune, Salim, Boussetta, Khaled, Chen, Ken   +3 more
core   +1 more source

Mechanotransducing Organic Electrochemical Diode for Crosstalk‐Inhibited Artificial Skin

Advanced Functional Materials, EarlyView.
An innovative approach is presented to a stretchable mechanotransducing diode that unifies rectification and tactile‐sensing functionality. This approach enables to fabricate the diode that maintains a large rectification ratio (5 × 102) at a high operational frequency (100 Hz).
Taeyeong Kim, Seunggoo Baek, Garrett Lecroy, Hyeongseok Choi, Wonjeong Suh, Woosung Cho, Alberto Salleo, Unyong Jeong   +7 more
wiley   +1 more source