Results 61 to 70 of about 3,257,513 (269)

Electrocatalyst/Semiconductor Interfaces in Photoelectrocatalysts: Mechanistic Analysis of the Impact of Nanoparticle Electrocatalyst Coverage on Performance

Advanced Materials, EarlyView.
Reducing Ni nanoparticle coverage on n‐Si photoanodes enhances photovoltage by promoting thicker interfacial SiOx formation during photoelectrochemical oxygen evolution reaction (OER). Experiments, analytical modeling, and finite‐element simulations reveal that coverage‐dependent chemical interface evolution, rather than geometric effects alone ...
Aarti Mathur, Ahmet Sert, Suljo Linic
wiley   +1 more source

Can Hot and Cold Slabs Transport Water Into the Deep Mantle Beyond Subduction Zone Magmatism?

Geochemistry, Geophysics, Geosystems
The slab thermal state model predicts that only cold slabs should retain some of their intra‐slab water beyond subduction zones, while warmer slabs should be nearly dry past the volcanic arc front.
Julia M. Ribeiro, Jeff Ryan, Jonny Wu
doaj   +1 more source

Crystal structure of ethyl 5′′-fluoro-2′′,3-dioxo-6′,7′,8′,8a'-tetrahydro-2′H,3H,5′H-dispiro[benzo[b]thiophene-2,1′-indolizine-3′,3′′-indoline]-2′-carboxylate

Acta Crystallographica Section E: Crystallographic Communications, 2015
In the title compound, C25H23FN2O4S, the fused piperidine ring of the octahydroindolizine ring system adopts a chair conformation and the five-membered ring has a twisted conformation on the N—C(spiro) bond.
R. Raja, J. Govindaraj, M. Suresh, R. Raghunathan, A. SubbiahPandi   +4 more
doaj   +1 more source

Adsorption‐Engineered Hydrocarbon Ionomers for Durable Proton‐Exchange Membrane Fuel Cells

Advanced Materials, EarlyView.
Hydrocarbon ionomers suffer from oxidation‐driven interfacial degradation in PEM fuel cell cathodes, leading to catalyst instability. Here, adsorption‐engineered poly(fluorene) ionomers decouple interfacial anchoring from oxidative degradation, enabling strong catalyst–ionomer interactions while resisting electrochemical oxidation.
Heemin Park, Kate Chen, Su Min Ahn, Hengquan Guo, Cy Fujimoto, Jong‐Ho Choi, Lynda Amichi, Danah Kim, Seung Geol Lee, Xiaojing Wang, Jacob S. Spendelow, Sun Young Kang, Panagiotis Bexis, Eun Joo S. Park, Yu Seung Kim   +14 more
wiley   +1 more source

Critical Evaluation of Vertical Stud Integration for Enhancing Blast Resistance in Slabs: A Comparative Analysis with Traditional Reinforcement Methods [PDF]

E3S Web of Conferences
Originally rooted in military engineering, blast engineering has transitioned across centuries, from ancient fortifications to modern civil structures and nuclear facilities.
Anas S. M., Al-Dala’ien Rayeh Nasr, Shariq Mohd, Alam Mehtab   +3 more
doaj   +1 more source

Sub‐Nanometer Cobalt on Tungsten Titanium Carbide MXene (W2TiC2Tx): An Electrocatalyst for Highly Efficient and Stable Alkaline Hydrogen Evolution at Industrial‐Scale Current Density

Advanced Materials, EarlyView.
A novel W2TiC2Tx MXene prepared through a MAX‐phase route supports sub‐nanometer Co for highly efficient alkaline hydrogen evolution. Strong Co–W interfacial interactions optimize hydrogen adsorption and catalytic activity, enabling low overpotentials of 63 mV at 10 mA cm−2, small Tafel slope of 44.3 mV dec−1, and exceptional durability at industrially
Xiaopeng Liu, Fan Yang, Deep M. Patel, Mohammad Albloushi, Qiqi Mao, Shan Jiang, Christian J. Breckner, Connor W. Schroeder, Ruoyu Cui, Tao Ma, Dapeng Jing, Wenyu Huang, Jeffrey T. Miller, Wenzhen Li, Luke T. Roling, Yue Wu   +15 more
wiley   +1 more source

Time-dependent behaviour of reinforced concrete slabs [PDF]

In this thesis is studied the long-term behaviour of steel reinforced slabs paying particular attention to the effects due to shrinkage and creep. Despite the universal popularity of using this kind of slabs for simply construction floors, the major ...
De Vittorio, Stefano
core  

Behaviour of Slabs Under Impact Loading: A Review

مجلة النهرين للعلوم الهندسية
The behaviour of slabs under impact loading differs significantly from that observed under short-term or long-term static loading conditions. Such dynamic loading scenarios typically arise from vehicular collisions, explosive events, or other forms of ...
Raid A. Daud, Sultan Daud, Mustafa H. Al-Allaf, Fahad Alrshoudi   +3 more
doaj   +1 more source

Diketopyrrolopyrrole‐Based Cation as a Semiconducting Spacer in Layered Perovskite

Advanced Materials, EarlyView.
Diketopyrrolopyrrole cation incorporated layered perovskites exhibiting extended absorption profiles and enhanced charge carrier mobility with type‐II energy alignment. The improved photoconversion efficiency demonstrates the critical role of incorporating organic semiconductors in optimizing layered perovskite performance.
Waygen Thor, Colin Jeanguenat, Louise De Cian, Demetra Tsokkou, Parnian Ferdowsi, Nicolas J. Diercks, Natalie Banerji, Jun‐Ho Yum, Kevin Sivula   +8 more
wiley   +1 more source

Spherical void formers in concrete slabs

Journal of the South African Institution of Civil Engineers, 2010
Large span concrete flat-slab systems with internal spherical void formers (SVF) have been used in Europe for over a decade. They are bi-axially reinforced concrete flat-slab systems with a grid of internal spherical void formers.
C C Marais, J M Robberts, B W J van Rensburg   +2 more
doaj