Results 61 to 70 of about 342,397 (311)

Renewable activated carbon from wood-based gasification char: A comprehensive study on physical activation

Carbon Resources Conversion
Wood gasification produces gasification char (GC), a carbonaceous by-product with limited sustainable valorisation strategies. The physical activation of wood-based GC as a precursor has received insufficient attention, likely due to the inherent ...
David Gurtner, Jan O. Back, Dominik Bosch, Angela Hofmann, Christoph Pfeifer   +4 more
doaj  

High‐Temperature Oxidation of the CrFeNi Medium‐Entropy Alloy

Advanced Engineering Materials, EarlyView.
The oxidation behavior of equiatomic CrFeNi MEA is a key issue that determines this material's suitability for high‐temperature application. The understanding of long‐term behavior is even more crucial than short‐term corrosion effects. The alloy is exposed to synthetic air at 1000, 1050, and 1100 °C for 24, 100, and 1000 h and systematically compared ...
Anna Maria Manzoni, Wencke Mohring, Mike Schneider, Guillaume Laplanche, Sebastian Peter Hagen, Christiane Stephan‐Scherb   +5 more
wiley   +1 more source

Potentials of algae-based activated carbon for the treatment of M.orange in wastewater

Case Studies in Chemical and Environmental Engineering, 2023
Activated carbon is a promising material with high efficiency in dye removal from polluted wastewater. However, commercial activated carbon is expensive and generates black color in the medium.
Sh Husien, Reem M. El-taweel, Nora Mohamed, A.B. Abdel-Aziz, KhloodA. Alrefaey, Salma Osama Elshabrawey, Nagwan G. Mostafa, Lobna A. Said, Irene Samy Fahim, Ahmed G. Radwan   +9 more
doaj  

Microstructural and Mechanical Properties of a Hard Anodic Coating Applied on an Elastically Prestrained Aluminum Substrate

Advanced Engineering Materials, EarlyView.
Prestraining the substrate influences coating formation process. Higher prestraining force leads to higher coating thickness and lower hardness. Increase in prestraining force enhances preliminary damage in hard anodic coating. Fatigue damage mechanisms change for hard anodized prestrained samples.
Linto George Thomas, Lisa Winter, Frank Simchen, Tobias Breitfeld, Thomas Lampke   +4 more
wiley   +1 more source

Gasification chars and activated carbon: Systematic physico-chemical characterization and effect on biogas production

Heliyon
Gasification residues/chars (GR) and activated carbon (AC) are added to wastewater treatment processes mainly as a fourth purification stage, e.g., to adsorb heavy metals or pharmaceutical residues. However, the effects of GR or AC, which are transferred
Christian Margreiter, Maraike Probst, Eva Maria Prem, Angela Hofmann, Andreas Otto Wagner   +4 more
doaj  

Multimodal Characterization Method for Metamaterials with Tunable Mechanical Stiffness and Electrical Resistivity

Advanced Engineering Materials, EarlyView.
This study presents a multimodal characterization method for a prototype metamaterial model structure that features four distinct states of mechanical stiffness and electrical resistivity. Through simulations and experiments, it uncovers insights into the structural behavior, the correlation between changes in electrical resistivity and mechanical ...
Rebecca Kose, Michael Mathias Becker, Martin Schuppmann, Sarah Christine Lidwina Fischer   +3 more
wiley   +1 more source

Self-sustained physical activation at pilot-scale integrated in a commercial wood gasification plant: A path to renewable activated carbon, PAH removal and electrical efficiency improvement

Fuel Processing Technology
A pilot-scale reactor for self-sustained physical activation was integrated into an industrial wood gasification plant (300kWel) with the aim of upgrading its carbon-rich by-product, gasification char (GC).
D. Gurtner, M. Kresta, M. Maurer, J. Haselwanter, A. Hofmann, C. Pfeifer   +5 more
doaj  

Ag Cluster‐Modified K0.5Na0.5NbO3 Piezocatalyst for Enhanced Electrochemical Dinitrogen Reduction Reaction

Advanced Engineering Materials, EarlyView.
Ag cluster‐modified K0.5Na0.5NbO3 acts as an efficient piezocatalyst for electrochemical N2 reduction, enhanced by built‐in electric fields under mechanical actuation. Comparative studies between static and actuated electrodes reveal improved performance under dynamic conditions.
Benedict Witulski, Naina Goyal, David Patrun, Fabio Pires, Ziyaad Aytuna, Hamed Alaei, Olav Schiemann, Sanjay Mathur   +7 more
wiley   +1 more source

Experimental study and characterisation of a novel two stage bubbling fluidised bed gasification process utilising municipal waste wood

Fuel Processing Technology
Biomass gasification has increased due to its ability to provide high-temperature heat, making it promising for the decarbonisation of industrial processes.
M. Kresta, D. Gurtner, L. Nohel, A. Hofmann, C. Pfeifer   +4 more
doaj  

Sintesis Komposit Polianilin-Karbon Aktif dari Tongkol Jagung sebagai Elektrolit Padat Pada Baterai

Jurnal Kimia Valensi, 2018
The polyaniline-activated carbon composites are synthesized using aniline chemical oxidation polymerization methods as well as variations in carbonization temperature of 800 °C and 1000 °C. The polyaniline-activated carbon composites are characterized by
Lela Mukmilah Yuningsih, Yusri Mutia Fauziyah   +1 more
doaj   +1 more source