Results 21 to 30 of about 48,083 (252)

Thermogravimetric Analysis of Marine Gas Oil in Lubricating Oil

Journal of Marine Science and Engineering, 2021
Marine lubricating oil (LO) is deteriorated by contaminants—especially marine gas oil (MGO), which is invariably mixed during its usage—that can damage engine performance. This study investigates a method for determining the content of MGO in lubricating
Suhyun Ahn, Jeong Mog Seo, Heejin Lee
doaj   +1 more source

Evaluation of the Thermal Stability of Poly (O–phenylenediamine) (PoPD) by Thermogravimetric Analysis (TGA) [PDF]

American Journal of Nanosciences, 2019
The poly (o-phenylenediamine) (PoPD) was synthesized from the monomer o-phenylenediamine in hydrochloric acid (HCl) using potassium dichromate as an oxidant by chemical oxidation method. The prepared PoPD sample was characterized by thermogravimetric analyzer (TGA) and scanning electron microscopy (SEM).
Nkamuo Chinwe Juliana, Nwokoye Anthony Osita Chibuike, Ekpunobi Azubuike Josiah   +2 more
openaire   +1 more source

Developing a Renewable Hybrid Resin System. Part I: Characterization of Co-Polymers of Isocyanate with Different Molecular Weights of Phenolic Resins

BioResources, 2016
Co-polymer systems of methylene diphenyl diisocyanate (MDI) and phenol-formaldehyde (PF) resins with different molecular weights were characterized by infrared spectroscopy (FTIR), X-ray diffraction (XRD), and thermogravimetric analysis (TGA).
Xiaomei Liu, Yiqiang Wu, Rubin Shmulsky, Yan Luo, Xiaodong (Alice) Wang, I Wei Chu, Hui Wan   +6 more
doaj   +1 more source

Influence of temperature on the production and size distribution of fine particles released from beech wood samples

MATEC Web of Conferences, 2018
Fine particles generated from laboratory biomass combustion are discussed in this study. The approach combines the thermogravimetric analysis during thermal decomposition of beech wood sample with detailed monitoring of the size distribution of fine ...
Poláčik Ján, Pospíšil Jiří, Šnajdárek Ladislav, Sitek Tomáš   +3 more
doaj   +1 more source

THERMOGRAVIMETRIC CHARACTERISTICS OF NATURAL, SYNTHETIC AND ARTIFICIAL TEXTILE MATERIALS OF VARIOUS CHEMICAL NATURE [PDF]

Актуальные вопросы пожарной безопасности
The paper presents the results of thermal analysis of samples of woven and textile-felt materials in an inert and air medium. The methods of thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) were used in the study. The features
Yury K. Naganovsky, Andrey B. Sivenkov
doaj   +1 more source

Titanium Suboxides Responsible for Electronic Anomaly Near Room Temperature in the Ti3C2Tx MXene

Advanced Functional Materials, EarlyView.
Our multi‐technique study reveals that the near‐room‐temperature anomaly in Ti3C2Tx MXene is linked to titanium suboxide nanodomains, including Ti3O5, embedded within the MXene host. Their temperature‐driven transformation provides an alternative explanation to solvent‐ and swelling‐based models and offers new insight into the thermally activated ...
Bence G. Márkus, Bradlee J. McIntosh, Lili Vajtai, Anna Nyáry, Sándor H. Sipos, Nirmal J. Ghimire, Ferenc Simon, László Forró, Dávid Beke   +8 more
wiley   +1 more source

Support‐Controlled Reaction Pathways via Dynamic Sulfur‐Mediated Interfaces for Selective Urea Electrolysis

Advanced Functional Materials, EarlyView.
Sulfur‐doped graphitized carbon nanofibers act as adaptive catalyst–support platforms, enabling dynamic sulfur‐mediated reconstruction and strong metal–support interactions. This unique behavior enhances catalyst stability and controls reaction pathways, achieving highly selective urea oxidation (∼92% N2) coupled with efficient hydrogen evolution ...
Melanie Guillén‐Soler, Lucía Vizcaíno‐Anaya, Ahmad Tayyebi, José Manuel Vila‐Fungueiriño, María del Carmen Giménez‐López   +4 more
wiley   +1 more source

Bio‐Inspired Synthesis of Macroporous Single Crystal Particles as Scattering Agents

Advanced Functional Materials, EarlyView.
A general strategy is presented that delivers unique, single‐crystal microparticles that combine submicron macroporosity and uniform particle shapes. A bioinspired approach is used to occlude three distinct types of additives – polystyrene microspheres, polymer vesicles and amino acids – within calcite single crystals, and subsequent thermal annealing ...
Stephanie E. Foster, Gianni Jacucci, Ouassef Nahi, Thomas Kress, Zabeada Aslam, Stuart Micklethwaite, Alexander N. Kulak, Rik Drummond‐Brydson, Melinda J. Duer, Yi‐Yeoun Kim, Silvia Vignolini, Fiona C. Meldrum   +11 more
wiley   +1 more source

Fine Particles Emission from Controlled Combustion of Beech Wood in Laboratory Conditions

Chemical Engineering Transactions, 2018
This paper deals with the laboratory scale identification of the formation and growth of fine particles during the temperature increase of beech wood samples.
Michal Spilacek, Jan Polacik, Jiri Pospisil, Ladislav Snajdarek, Tomas Sitek   +4 more
doaj   +1 more source

Evolved Gas Analysis and Kinetics of Catalytic and Non-Catalytic Pyrolysis of Microalgae Chlorella sp. Biomass With Ni/θ-Al2O3 Catalyst via Thermogravimetric Analysis

Frontiers in Energy Research, 2021
This study investigates the efficacy of a prepared Ni/θ-Al2O3 catalyst during the pyrolytic conversion of Parachlorella kessleri HY-6 and compares the results with non-catalytic conversion.
Wasif Farooq, Imtiaz Ali, Salman Raza Naqvi, Mohd Sajid, Hassnain Abbas Khan, Sagir Adamu, Sagir Adamu   +6 more
doaj   +1 more source