Results 71 to 80 of about 46,724 (303)

Dipole‐Engineered Conductive Additives for Ultrastable Interphase Evolution in High‐Areal‐Capacity Silicon Anodes

Advanced Functional Materials, EarlyView.
In the work reported herein, dipole‐engineered sulfonated carbon nanofibers enable conductive additives to actively regulate interphase formation in silicon anodes. Polar sulfonyl groups guide electrolyte decomposition to form a compact LiF‐rich interphase while promoting robust integration with silicon.
Song Kyu Kang, Hyeonju Kim, Jeongbin Cho, Minseon Park, Taehun Kim, Seonghun Sin, Won Bae Kim   +6 more
wiley   +1 more source

Premature Damage in Bearing Steel in Relation with Residual Stresses and Hydrogen Trapping

Lubricants
In this study, premature damage in cylindrical roller bearings made of 100Cr6 (SAE 52100) was investigated. For this purpose, full bearing tests were carried out using two different lubricant formulations with similar viscosities.
Maximilian Baur, Iyas Khader, Dominik Kürten, Thomas Schieß, Andreas Kailer, Martin Dienwiebel   +5 more
doaj   +1 more source

Tuning Separator Chemistry: Improving Zn Anode Compatibility via Functionalized Chitin Nanofibers

Advanced Functional Materials, EarlyView.
Nanochitin derived from waste shrimp shells is used to fabricate separators for aqueous zinc batteries. By tuning the density of amine and carboxylic surface groups, water mobility at the separator interface is controlled, promoting uniform zinc deposition, suppressing dendrite growth, and enabling exceptional cycling stability exceeding 2000 h ...
Ibrahim Al Kathemi, Vishnu Arumughan, Mohamed Zbiri, Marcel Kröger, Ira Smal, Eero Kontturi, Roza Bouchal   +6 more
wiley   +1 more source

Graded‐Interface Dual‐Environment Hydrogel‐Polymer Electrolyte for Stabilized Anode and Sustained Cathode Kinetics in Aqueous Zinc‐Ion Batteries

Advanced Functional Materials, EarlyView.
A graded‐interface hydrogel‐polymer electrolyte decouples water activity to simultaneously stabilize the Zn anode and sustain cathode kinetics. The flexible design supports dendrite‐free cycling over 1600 h, high capacity in both MnO2 and V2O5 full cells, and stable pouch‐cell performance under bending, resolving the fundamental water conflict in ...
Shuyun Wang, Shengmei Chen, Xinyu Wang, Haipeng Wang, Jinsong Zhou, Ka Kiu Keith Cheung, Yiran Ying, Longtao Ma, Juan Antonio Zapien   +8 more
wiley   +1 more source

Long‐Range Coordination Environment Modulates Single‐Atom Local States and Systemic Impact on CO2 Photoconversion

Advanced Functional Materials, EarlyView.
Terminal groups on Cu porphyrins modulate the electronic states of single‐atom Cu centers through a long‐range electronic effect, without altering the Cu coordination geometry. Meanwhile, a multi‐descriptor framework is established that incorporates porphyrin regulation, hybrid catalyst properties, and CO2 photoreduction capabilities.
Yi Zhang, Jintao Dong, Xiahe Chen, Xiyang Wang, Tiange Wei, Yue Zhu, Tai‐Sing Wu, Yun‐Fang Yang, Shao‐Yuan Leu, Keke Wang, Yuanbin She, Huaming Li, Jiexiang Xia, Molly Meng‐Jung Li   +13 more
wiley   +1 more source

First-principles study of hydrogen trapping and diffusion mechanisms in vanadium carbide with connecting carbon vacancies

Understanding the trapping and diffusion mechanism of hydrogen in vanadium carbide (VC) precipitates is crucial for exploring the issue of hydrogen embrittlement in steel. Although there is widespread consensus that VC can trap hydrogen, the mechanism by
Tang, Shuai, 彭庆, Wang, Guodong, Yan, Haile, van der Zwaag, Sybrand, Li, Linxian, Peng, Qing, Lan, Huifang, vanderZwaag, Sybrand, Liu, Zhenyu, Tan, Fengliang   +10 more
core   +1 more source

Hydrogen Trapping in Some Automotive Martensitic Advanced High-Strength Steels

, 2017
Hydrogen permeation experiments are used to investigate hydrogen trapping in commercial automotive martensitic advanced high-strength steels. Hydrogen trapping increases with increasing mechanical strength, as indicated by (i) the decrease in the ...
Qingjun Zhou, Andrej Atrens, Venezuela, Jeffrey, Zhang, Mingxing, Mingxing Zhang, Zhou, Qingjun, Qinglong Liu, Atrens, Andrej, Jeffrey Venezuela, Liu, Qinglong   +9 more
core   +1 more source

Size-dependent hydrogen trapping in palladium nanoparticles

, 2021
International audienceWe report an experimental study, supported by a theoretical approach based on simulations, to explore the phenomenon of H trapping in small Pd nanoparticles.
Piccolo, Laurent, Amara, Hakim, Liu, Wang, Magnin, Yann, Morfin, Franck, Förster, Daniel, Bourgon, Julie, Len, Thomas, Zlotea, Claudia   +8 more
core   +1 more source

Toward Fast Proton Shuttling in Acidic Oxygen Evolution Reaction

Advanced Functional Materials, EarlyView.
This review establishes proton transfer dynamics as a descriptor governing acidic OER activity, moving beyond the kinetic constraints derived from the proton coupled electron transfer. We discuss how deprotonation governs classical mechanisms, including adsorbate evolution mechanism (AEM), lattice oxygen mechanism (LOM) and oxide path mechanism (OPM ...
Ashish Gaur, Jaeyeong Kim, Sungwook Mhin, HyukSu Han   +3 more
wiley   +1 more source

Hydrogen distribution and redistribution in the weld zone of constructional steels

, 1999
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The invention of electric arc welding revolutionized the steel construction industry, but also brought some problems when the welded region has inferior ...
Smith, Richard Dominic
core