Blar i NTNU Open på forfatter "Rønning, Magnus"
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Active sites for the oxygen reduction reaction in nitrogen-doped carbon nanofibers
Buan, Marthe Emelie Melandsø; Cognigni, Andrea; Walmsley, John; Muthuswamy, Navaneethan; Rønning, Magnus (Journal article; Peer reviewed, 2019)Understanding the role of iron and the nature of the active sites in nitrogen-doped carbon nanomaterials is vital for their future application as oxygen reduction electrocatalysts in fuel cells. In this paper, porphyrin-like ... -
Advanced characterization of flame spray pyrolysis prepared catalysts for oxidation of NO to NO2
Meuche, Martin Peter (Master thesis, 2019)Hensikten med denne masteroppgaven var å undersøke bruken av flamme-spray pyrolyse som syntesemetode for krystallinske katalysatorer med store overflater for bruk i oksidasjon av NO til NO 2 . Dette ble gjort gjennom grundig ... -
Atomically dispersed Fe-N-P-C complex electrocatalysts for superior oxygen reduction
Li, Yahao; Chen, Bingxu; Duan, Xuezhi; Chen, Shuangming; Liu, Daobin; Zang, Ketao; Si, Rui; Lou, Fengliu; Wang, Xuehang; Rønning, Magnus; Song, Li; Luo, Jun; Chen, De (Journal article; Peer reviewed, 2019)Development of cost-effective electrocatalysts as an alternative to platinum for oxygen reduction reaction (ORR) is of great significance for boosting the applications of green energy devices such as fuel cells and metal-air ... -
Boosting CO2 reforming of methane via the metal-support interaction in mesostructured SBA-16-derived Ni nanoparticles
Sun, Chao; Summa, Paulina; Wang, Ye; Swirk Da Costa, Katarzyna; Miro i Rovira, Albert; Swierczek, Konrad; Hu, Changwei; Rønning, Magnus; Da Costa, Patrick (Journal article; Peer reviewed, 2022) -
Can Temperature-Programmed Techniques Provide the Gold Standard for Carbon Surface Characterization?
Herold, Felix; Gläsel, Jan; Etzold, Bastian J. M.; Rønning, Magnus (Peer reviewed; Journal article, 2022)Due to their chemical and thermal stability, electrical conductivity, and high specific surface areas, nanocarbons and porous carbon materials have found use in numerous key applications within the current transition of ... -
Capturing metal-support interactions in situ during the reduction of a Re promoted Co/γ-Al2O3 catalyst
Tsakoumis, Nikolaos; Johnsen, Rune E.; van Beek, Wouter; Rønning, Magnus; Rytter, Erling; Holmen, Anders (Journal article; Peer reviewed, 2016)The reduction of a Re promoted Co/γ-Al2O3 catalyst was monitored in situ by synchrotron X-ray powder diffraction (XRPD) under H2 environment. Whole powder pattern analysis revealed a non-linear expansion of the unit cell ... -
Carbon-resistant NiO-Y2O3-nanostructured catalysts derived from double-layered hydroxides for dry reforming of methane
Swirk, Katarzyna; Zhang, Hailong; Li, Shanshan; Chen, Yaoqiang; Rønning, Magnus; Motak, Monika; Grzybek, Teresa; Da Costa, Patrick (Peer reviewed; Journal article, 2021)Yttrium promoted Ni/Mg/Al double-layered hydroxides were prepared through co-precipitation method and calcined at 550 °C for 5 h in order to obtain nanostructured mixed oxides. The catalysts were tested in dry reforming ... -
Catalysts for electrochemical conversion of CO2 in aqueous solutions
Hjorth, Ida (Doctoral theses at NTNU;2017:82, Doctoral thesis, 2017)An artificial photosynthesis process can 1) utilise renewable energy from the sun, 2) facilitate convenient energy storage in chemical bonds, 3) supply feed-stock to the chemical industry, and 4) recycle CO2 in a CO2-neutral ... -
Catalytic oxidation of nitric oxide to nitrogen dioxide at industrial nitric acid production conditions
Gopakumar, Jithin (Doctoral theses at NTNU;2024:267, Doctoral thesis, 2024) -
Catalytic Oxidation of NO over LaCo1−xBxO3 (B = Mn, Ni) Perovskites for Nitric Acid Production
Salman, Ata ul Rauf; Hyrve, Signe Marit; Regli, Samuel K.; Zubair, Muhammad; Enger, Bjørn Christian; Lødeng, Rune; waller, david; Rønning, Magnus (Journal article; Peer reviewed, 2019)Abstract Nitric acid (HNO3) is an important building block in the chemical industry. Industrial production takes place via the Ostwald process, where oxidation of NO to NO2 is one of the three chemical steps. The reaction ... -
Catalytic oxidation of NO to NO2 for nitric acid production
Salman, Ata ul Rauf (Doctoral theses at NTNU;2019:376, Doctoral thesis, 2019) -
Catalytic oxidation of NO to NO2 for nitric acid production over a Pt/Al2O3 catalyst
Salman, Ata ul Rauf; Enger, Bjørn Christian; Auvray, Xavier; Lødeng, Rune; Menon, Mohan; Waller, David; Rønning, Magnus (Journal article; Peer reviewed, 2018)The oxidation of nitric oxide (NO) to nitrogen dioxide (NO2) is a key step both in NOx abatement technologies as well as in the Ostwald process for nitric acid production. A 1 wt.% Pt/Al2O3 catalyst was used to study ... -
Ce- and Y-Modified Double-Layered Hydroxides as Catalysts for Dry Reforming of Methane: On the Effect of Yttrium Promotion
Swirk, Katarzyna; Rønning, Magnus; Motak, Monika; Beaunier, Patricia; Da Costa, Patrick; Grzybek, Teresa (Journal article; Peer reviewed, 2019)Ce- and Y-promoted double-layered hydroxides were synthesized and tested in dry reforming of methane (CH4/CO2 = 1/1). The characterization of the catalysts was performed using X-ray fluorescence (XRF), X-ray diffraction ... -
CeO2-ZrO2-WO3-based catalysts for Selective Catalytic Reduction of Nitrogen Oxides by Ammonia
Hui, Chun Kin (Master thesis, 2018)Cerium, zirconium and tungsten based catalysts with addition of 3% copper were prepared through the hydrothermal method and incipient wetness impregnation method. The three catalysts produced were named CZW (hydrothermal ... -
Co-precipitated ni-mg-al hydrotalcite-derived catalyst promoted with vanadium for co<inf>2</inf> methanation
Summa, Paulina; Swirk, Katarzyna; Wierzbicki, Dominik; Motak, Monika; Alxneit, Ivo; Rønning, Magnus; Da Costa, Patrick (Journal article; Peer reviewed, 2021)Co-precipitated Ni-Mg-Al hydrotalcite-derived catalyst promoted with vanadium were synthesized with different V loadings (0–4 wt%) and studied in CO2 methanation. The promotion with V significantly changes textural properties ... -
Comparative study on the photocatalytic hydrogen producton from methanol over Cu, Pd, Co and Au loaded TiO2
Punchi Patabandige, Charitha Udani; Rønning, Magnus (Peer reviewed; Journal article, 2015)Photocatalytic hydrogen production from a methanol-water solution was investigated in a semi-continuous reactor over different metal-loaded TiO2 catalysts under UltraViolet (UV) light irradiation. The catalysts were mainly ... -
Comparison of Fresh and Spent Pd/Al2O3 Catalysts for Low Temperature Selective Hydrogenation
Værnes, Erlend Skjørstad (Master thesis, 2021)Karakterisering av to kommersielle Pd/γ-Al2O3 katalysatorer med ulik dispersjon var utført før og etter aktivitetstester. Aktivitetstestene innebar selektiv hydrogenering av et nitroarenderivat for å danne et korresponderende ... -
Controlled doping of carbon catalyst supports by atomic replacement via gasification-assisted heteroatom doping
Herold, Felix; Imhof, Timo; Roumeliotis, Paul; Schühle, Patrick; Ledendecker, Marc; Rønning, Magnus (Peer reviewed; Journal article, 2023)Due to a set of unique properties, carbon materials are applied as supports for metal-based catalysts in a wide variety of established and emerging (electro-)catalytical transformations. By introducing heteroatoms such as ... -
Core-Shell Nanostructures of Graphene-Wrapped CdS Nanoparticles and TiO2 (CdS@G@TiO2): The Role of Graphene in Enhanced Photocatalytic H2 Generation
Zubair, Muhammad; Svenum, Ingeborg-Helene; Rønning, Magnus; Yang, Jia (Peer reviewed; Journal article, 2020)Aiming to achieve enhanced photocatalytic activity and stability toward the generation of H2 from water, we have synthesized noble metal-free core-shell nanoparticles of graphene (G)-wrapped CdS and TiO2 (CdS@G@TiO2) by a ... -
Core-shell particles of C-doped CdS and graphene: A noble metal-free approach for efficient photocatalytic H2 generation
Zubair, Muhammad; Vanhaecke, Estelle Marie M.; Svenum, Ingeborg-Helene; Rønning, Magnus; Yang, Jia (Journal article; Peer reviewed, 2020)To achieve efficient photocatalytic H2 generation from water using earth-abundant and cost-effective materials, a simple synthesis method for carbon-doped CdS particles wrapped with graphene (C-doped CdS@G) is reported. ...