Results 51 to 60 of about 128,960 (311)

CO2 Reduction on Copper‐Nitrogen‐Doped Carbon Catalysts Tuned by Pulsed Potential Electrolysis: Effect of Pulse Potential

Advanced Functional Materials, EarlyView.
This study demonstrates that pulsed potential electrolysis significantly improves CO2 reduction performance on copper‐nitrogen doped carbon electrodes. The formation of cationic copper sites and metallic clusters as a function of applied intermittent potential leads to notable selectivity changes compared to potentiostatic reduction.
Dorottya Hursán, Janis Timoshenko, Andrea Martini, Hyo Sang Jeon, Eduardo Ortega, Martina Rüscher, Arno Bergmann, Aram Yoon, Uta Hejral, Antonia Herzog, Clara Rettenmaier, Felix T. Haase, Philipp Grosse, Beatriz Roldan Cuenya   +13 more
wiley   +1 more source

Experimental Study of the Effect of Slope on the Spread and Burning Characteristics of a Continuous Oil Spill Fire

Fire, 2022
Elucidating the characteristics of continuous oil spill fires for different slope conditions can provide important theoretical support for the prevention of, and rescue strategies during, oil spill fire accidents.
Xiaoxiao Sun, Hong Huang, Jinlong Zhao, Guangheng Song   +3 more
doaj   +1 more source

Fire retardant action of mineral fillers [PDF]

, 2011
Endothermically decomposing mineral fillers, such as aluminium or magnesium hydroxide, magnesium carbonate, or mixed magnesium/calcium carbonates and hydroxides, such as naturally occurring mixtures of huntite and hydromagnesite are in heavy demand as ...
Artur Witkowski, Ashley, Bourbigot, Bourbigot, Celzard, de Wit, Herbert, Hollingbery, Hollingbery, Horn, Hornsby, Huggett, Hughes, Hull, Hull, Hull, Hull, Khalturinskii, Laachachi, Lebek, Li, Luke Hollingbery, McGarry, Paul, Price, Rigolo, Rothon, Rothon, Schartel, Schartel, Schmaucks, Shaw, Shomate, Sobolev, Souza, Stoliarov, T. Richard Hull, Wang, Wang, Zhang, Zilberman   +40 more
core   +1 more source

Defects Dynamic in Photo‐Excited CeO2 and their Influence on CO2 Photoreduction

Advanced Functional Materials, EarlyView.
X‐ray photoelectron spectroscopy study under light excitation is presented to track the defect dynamic (Ce4+ to Ce3+) in CeO2. Surface enhanced Raman spectroscopy confirmed the key role of Ce3+ states in controlling charge and energy transfer across the CeO2‐dye molecule interface.
Rambabu Yalavarthi, Shashi B. Mishra, Olivier Henrotte, Emiliano Cortes   +3 more
wiley   +1 more source

Deceleration mechanism of downward flame spreading over inclined solid surface based on FireFOAM

Case Studies in Thermal Engineering, 2022
FireFOAM solver is used to simulate downward flame spread on the surface of a single-wall corrugated board with different inclination angles (0° ∼ −30°), and to study countercurrent fire spread behavior and heat transfer control mechanism on solid ...
Guanghui Zhang, Qi Li, Yifan Lin, Kaixuan Tang, Ying Zhang   +4 more
doaj   +1 more source

Study on the numerical model of 2-dimensional surface flame spread due to wind and slope in forest fire [PDF]

, 2012
The characteristics of the spread of a forest fire are generally related to combustibles, geographical features, and metrological conditions such as wind.
Kim, D.
core  

GeAl2‐2xFe2xO3(OH)4 Nanotubes: New Electrocatalyst for Oxygen Evolution Reaction

Advanced Functional Materials, EarlyView.
Fe‐doped imogolite nanotubes are synthesized via a one‐step hydrothermal method with varying Fe substitution ratios x. Structural and spectroscopic analyses confirm homogeneous Fe incorporation while preserving tubular shape. Optimal doping at x = 0.05 enhances optical absorption, narrows band gap, reduces charge transfer resistance, and significantly ...
Yassine Naciri, Jian Li, Wahid Ullah, Fabien Baron, Franck Bourdelle, Stéphan Rouzière, Claire Goldmann, Erik Elkaim, Thomas Bizien, Rachid Belkhou, Delphine Vantelon, Mohamed Nawfal Ghazzal, Erwan Paineau   +12 more
wiley   +1 more source

Study on the influence of restricted distance on fixed-width discrete of discontinuous flame spread

Case Studies in Thermal Engineering
This study investigates the impact of varying distances between vertical walls on the propagation of discrete flames in PMMA (Polymethyl Methacrylate) slabs.
Zhenkun Wu, Min Peng, Jinhu Zhou, Panwen Ma, Dongzi Qin, Guoqing Zhu   +5 more
doaj   +1 more source

From fire whirls to blue whirls and combustion with reduced pollution. [PDF]

, 2016
Fire whirls are powerful, spinning disasters for people and surroundings when they occur in large urban and wildland fires. Whereas fire whirls have been studied for fire-safety applications, previous research has yet to harness their potential burning ...
Gollner, Michael J, Oran, Elaine S, Xiao, Huahua   +2 more
core   +2 more sources

3D Digital Light Processing of Redox‐Active Polymers for Electrochemical Applications

Advanced Functional Materials, EarlyView.
3D printing of electrochemically switchable conducting polymers is achieved by Digital Light Processing of redox‐active carbazole‐based polymer materials. Complex 2D and 3D architectures including dot arrays and pyramids clearly show the potential for novel 3D switchable electrochemical devices for sensors, electrochromic displays as well as 3D printed
Christian Delavier, Svenja Bechtold, Marcus H. Dodds, Eva Blasco, Sabine Ludwigs   +4 more
wiley   +1 more source