TNT:n ja RDX:n määrittäminen HPLC:lla ja menetelmän validointi
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Kenttäkolorimetrin kahden menetelmän validointi ja vesinäytteenotto
Kauranen, Heidi (2021)Tämän kandidaatintutkielman kirjallisuuskatsauksessa tarkastellaan menetelmän validointia, vesinäytteenottoa sekä spektrofotometriaa. Kokeellisessa osuudessa käsitellään Spectroquant Move 100 -kenttäkolorimetrin soveltumista ... -
Effect of atomic layer deposited zinc promoter on the activity of copper-on-zirconia catalysts in the hydrogenation of carbon dioxide to methanol
Arandia, Aitor; Yim, Jihong; Warraich, Hassaan; Leppäkangas, Emilia; Bes, René; Lempelto, Aku; Gell, Lars; Jiang, Hua; Meinander, Kristoffer; Viinikainen, Tiia; Huotari, Simo; Honkala, Karoliina; Puurunen, Riikka L. (Elsevier, 2023)The development of active catalysts for carbon dioxide (CO2) hydrogenation to methanol is intimately related to the creation of effective metal-oxide interfaces. In this work, we investigated how the order of addition of ... -
Exploring CO2 hydrogenation to methanol at a CuZn–ZrO2 interface via DFT calculations
Lempelto, Aku; Gell, Lars; Kiljunen, Toni; Honkala, Karoliina (Royal Society of Chemistry (RSC), 2023)Multi-component heterogeneous catalysts are among the top candidates for converting greenhouse gases into valuable compounds. Combinations of Cu, Zn, and ZrO2 (CZZ) have emerged as promisingly efficient catalysts for CO2 ... -
Microwave-assisted Esterification of Tall Oil Fatty Acids with Methanol Using Lignin-based Solid Catalyst
Kumar, Hemanathan; Alén, Raimo (American Chemical Society, 2016)During alkaline pulping significant amounts of lignin, carbohydrates (mostly hemicelluloses), and extractives (tall oil soap and turpentine) are removed from wood feedstock. In this study, the catalytic esterification of ... -
Methylophilaceae and Hyphomicrobium as target taxonomic groups in monitoring the function of methanol-fed denitrification biofilters in municipal wastewater treatment plants
Rissanen, Antti; Ojala, Anne; Fred, Tommi; Toivonen, Jyrki; Tiirola, Marja (Springer; Society for Industrial Microbiology, 2017)Molecular monitoring of bacterial communities can explain and predict the stability of bioprocesses in varying physicochemical conditions. To study methanol-fed denitrification biofilters of municipal wastewater treatment ...