Results 51 to 60 of about 830,623 (326)

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Rancang Bangun Furnace Temperatur Tinggi dengan Pengendali Mikrokontrol ATMEGA 8535 Menggunakan Sumber Pemanas Silicon Carbide (SiC) [PDF]

, 2017
It has been successfully designed high temperatur furnace using Silicon Carbide (SiC) as an electric furnace source which can be controlled by ATMEGA 8535.
A, S. (Sulistyawan), Najih, A. M. (Anas), Priyono, P. (Priyono)   +2 more
core  

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

A Device with a Controllable Internal Atmosphere, Independent from the Heating Furnace, for Sintering Metal Particles [PDF]

Materials Research
A device with a controllable atmosphere has been designed and fabricated to sinter metal particles in the manufacturing processes of metallic components (porous or non-porous parts).
M. E. Hernández–Rojas, S. L. Castañón–Alonso, S. Báez–Pimiento   +2 more
doaj   +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

Thermal characteristics of the dryer with rice husk double furnace - heat exchanger for smallholder scale drying

Case Studies in Thermal Engineering, 2021
Smallholder farmer scale drying is very dependent on sunlight because of limited costs and technology. The downside is when the weather is erratic due to weather changes.
Ida Bagus Alit, I Gede Bawa Susana, I Made Mara   +2 more
doaj   +1 more source

Stabilizing Cationic Palladium Single‐Atom Sites on Heteroatom‐Doped Carbon for Selective Hydrogen Peroxide Electrosynthesis

Advanced Functional Materials, EarlyView.
In this research, it is demonstrated that dual nitrogen and sulfur doping in hollow carbon spheres creates a tunable coordination environment that stabilizes cationic Pd single atoms as robust organometallic complexes, enabling high selectivity and stability for electrochemical hydrogen peroxide production under harsh acidic and peroxide‐rich ...
Guilherme V. Fortunato, Alexander Gunnarson, Hannaneh Hosseini, Xiangyu You, Pallabi Bhuyan, Ji Sik Choi, Hyo Sang Jeon, Xingshen Zhao, Julio C. Lourenço, Sumin Lim, Huize Wang, Ana Guilherme Buzanich, Martin Radtke, Paul Paciok, Marcos R.V. Lanza, Ferdi Schüth, Marc Ledendecker   +16 more
wiley   +1 more source

Formation of Silicon Carbide Using Volcanic Ash as Starting Material and Concentrated Sunlight as Energy Resource

International Journal of Photoenergy, 2015
SiC was formed using volcanic ash as starting material and concentrated sunlight as energy resource. The solar furnace was composed of two parts: Fresnel lens and reacting furnace.
Kensuke Nishioka, Junki Komori, Kouji Maeda, Yasuyuki Ota, Hiroshi Kaneko, Kosei Sato   +5 more
doaj   +1 more source

Aluminium Alloys Smelting in Shaft- Reverberatory Furnaces in a Liquid Bath Mode

Archives of Foundry Engineering, 2017
The aim of research was creation of a furnace for aluminum alloys smelting “in a liquid bath” in order to reduce metal loss. In the paper, the author demonstrates the results of research on smelting of aluminum alloys in a shaft-reverberatory furnace ...
Grachev V.
doaj   +1 more source

Apparatus for making a metal slurry product Patent [PDF]

, 1960
Apparatus for producing hydrocarbon slurry containing small particles of magnesium for use as jet aircraft ...
Prok, G. M., Walsh, T. J., Witzke, W. R.
core   +1 more source