Претрага
3 items
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Characterization of biochar surface functional groups
In this work, biochar originating from paper fibres was examined. Biochar was prepared via pyrolysis method at 550°C. Oxygen-containing functional groups on biochar surface were determined. The surface functional groups of biochar were analysed by Fourier transform infrared spectroscopy. The amount of oxygen-containing functional groups was performed with Boehm titration. The total acidity of biochar was mostly attributed to carboxylic and lactonic groups.Marija Ilić, Vesna Pavelkić, Aleksandar Lolić, Branko Leković. "Characterization of biochar surface functional groups" in Šesti Naučno-stručni skup Politehnika, Beograd, 10. decembar 2021., Beograd : Akademija tehničkih strukovnih studija (2021) М63
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Structure and morphology of chars and activated carbons obtained from thermal treatment of coal and biomass origin materials, including their wastes: Results from the ICCP Microscopy of Carbon Materials Working Group
Georgeta Predeanu, Małgorzata Wojtaszek-Kalaitzidi, Isabel Suárez Ruiz., Mihaela N Bălănescu, Angeles Gómez Borrego, Mircea D.Ghiran, Paul C.Hackley, Stavros Kalaitzidis, Jolanta Kus, Maria Mastalerz, Magdalena Misz-Kennan, Slawka Pusz, Sandra Rodrigues, Georgios Siavalas, Atul Varma, Alexander Zdravkov, Dragana Životić (2024)This paper describes the evaluation of petrographic textures in char and activated carbon derived from coal, coal by-products and biomass, formed during carbonization and activation processes. This work represents the results of interlaboratory exercises from 2016 to 2022 of the Microscopy of Carbon Materials Working Group in Commission III of the International Committee for Coal and Organic Petrology. The interlaboratory exercises were run on photomicrograph samples. For textural characterization of carbon materials, the existing American Society for Testing and ...чађ/биочађ, активни угљеник, термичка обрада (конвенционална/неконвенционална), адсорпција, међулабораторијака вежбања, ICCPGeorgeta Predeanu, Małgorzata Wojtaszek-Kalaitzidi, Isabel Suárez Ruiz., Mihaela N Bălănescu, Angeles Gómez Borrego, Mircea D.Ghiran, Paul C.Hackley, Stavros Kalaitzidis, Jolanta Kus, Maria Mastalerz, Magdalena Misz-Kennan, Slawka Pusz, Sandra Rodrigues, Georgios Siavalas, Atul Varma, Alexander Zdravkov, Dragana Životić. "Structure and morphology of chars and activated carbons obtained from thermal treatment of coal and biomass origin materials, including their wastes: Results from the ICCP Microscopy of Carbon Materials Working Group" in International Journal of Coal Geology, Elsevier BV (2024). https://doi.org/10.1016/j.coal.2024.104519 М21а
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Surface functional groups and degree of carbonization of selected chars from different processes and feedstock
Marija Ilić, Franz-Hubert Haegel, Aleksandar Lolić, Zoran Nedić, Tomislav Tosti, Ivana Sredović Ignjatović, Andreas Linden, Nicolai D. Jablonowski, Heinrich Hartmann (2022)The knowledge ofthe structural and chemical properties of biochars is decisive for their application as technical products. For this reason, methods for the characterization of biochars that are generally applicable and allow quality control are highly desired. Several methods that have shown potential in other studies were used to investigate two activated carbons and seven biochars from different processes and feedstock. The chars were chosen to cover a wide range of chemical composition and structural properties as a hardness ...Biougalj, različiti procesi dobijanja, različite sirovine, površinski aktivne grupe, x-ray, FT-IR,XPSMarija Ilić, Franz-Hubert Haegel, Aleksandar Lolić, Zoran Nedić, Tomislav Tosti, Ivana Sredović Ignjatović, Andreas Linden, Nicolai D. Jablonowski, Heinrich Hartmann. "Surface functional groups and degree of carbonization of selected chars from different processes and feedstock" in PLOS ONE (2022). https://doi.org/10.1371/journal.pone.0277365 М22