Blar i NTNU Open på forfatter "Yang, Jia"
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Facile synthesis approach for core-shell TiO2–CdS nanoparticles for enhanced photocatalytic H2 generation from water
Zubair, Muhammad; Svenum, Ingeborg-Helene; Rønning, Magnus; Yang, Jia (Journal article; Peer reviewed, 2018)With the ambition to design a cost-effective and highly stable photocatalyst with improved photocatalytic activity towards H2 generation by water splitting, herein we report a two-step facile synthesis approach for core-shell ... -
Fischer-Tropsch synthesis: Effect of CO conversion on CH4 and oxygenate selectivities over precipitated Fe-K catalysts
Ma, Wenping; Shafer, Wilson D.; Jacobs, Gary; Yang, Jia; Sparks, Dennis E.; Hamdeh, Hussein H.; Davis, Burtron H. (Journal article; Peer reviewed, 2018)The explanation for CH4 selectivity for iron based Fischer-Tropsch catalysts in the low conversion region (i.e., <50%) remains elusive. In this contribution, the CO conversion effect was carefully examined over four K ... -
Fischer-tropsch: Product selectivity-the fingerprint of synthetic fuels
Shafer, Wilson D.; Gnanamani, Muthu Kumaran; Graham, Uschi M; Yang, Jia; Masuku, Cornelius M; Jacobs, Gary; Davis, Burtron H. (Journal article; Peer reviewed, 2019)The bulk of the products that were synthesized from Fischer–Tropsch synthesis (FTS) is a wide range (C1–C70+) of hydrocarbons, primarily straight-chained paraffins. Additional hydrocarbon products, which can also be a ... -
Hydrodeoxygenation (HDO) of simulated bio oil to fuel on bimetallic transition metal phosphides
Sundli, Eline Nesdal (Master thesis, 2018)Environmental concerns and depleting availability of fossil resources, are raising interest regarding energy production from renewable sources. Biomass has the potential for being a CO2 neutral feedstock for fuel production. ... -
Hydrophobic Catalyst Support Surfaces by Silylation of γ-Alumina for Co/Re Fischer-Tropsch Synthesis
Rytter, Erling; Salman, Ata ul Rauf; Tsakoumis, Nikolaos; Myrstad, Rune; Yang, Jia; Lögdberg, Sara; Holmen, Anders; Rønning, Magnus (Journal article; Peer reviewed, 2018)Eight different silanes with chloro or methoxy active ligands have been examined to modify the surface of a standard γ-alumina support to investigate the effect of surface acidity and hydrophobicity in Fischer-Tropsch ... -
Influence of temperature during pyrolysis of Fe-alginate: Unraveling the pathway towards highly active Fe/C catalysts
Tafjord, Joakim; Regli, Samuel K.; Dugulan, Achim Iulian; Rønning, Magnus; Rytter, Erling; Holmen, Anders; Myrstad, Rune; Yang, Jia (Peer reviewed; Journal article, 2022)Transition metals supported on carbons play an important role in catalysis and energy storage. By pyrolysis of metal alginate, highly active catalysts for the Fischer-Tropsch synthesis (FTS) can be produced. However, the ... -
Insight into Size- and Metal-Dependent Activity and the Mechanism for Steam Methane Re-forming in Nanocatalysis
Wang, Yalan; Xiao, Ling; Qi, Yanying; Yang, Jia; Zhu, Yi-An; Chen, De (Peer reviewed; Journal article, 2020)Systematic and in-depth understanding of size- and metal-dependent activity plays a pivotal role in nanocatalysis for rational design of highly efficient catalysts. Herein, we report an approach combining microkinetic ... -
Investigation of C1+C1 coupling reactions in cobalt-catalyzed Fischer-Tropsch synthesis by a combined DFT and kinetic isotope study
Qi, Yanying; Yang, Jia; Holmen, Anders; Chen, De (Journal article; Peer reviewed, 2019)Understanding the chain growth mechanism is of vital importance for the development of catalysts with enhanced selectivity towards long-chain products in cobalt-catalyzed Fischer-Tropsch synthesis. Herein, we discriminate ... -
Investigations of the methanol to formaldehyde (MTF) reaction over silver
Lervold, Stine (Doctoral theses at NTNU;2021:206, Doctoral thesis, 2021)Formaldehyd har lettgjenkjennelig lukt, er det enkleste av aldehydene og ble først oppdaget av Butlerov i 1859. Industriell framstilling av formaldehyd ble utviklet i løpet av 1900-tallet og molekylet har med sin høye ... -
Methane activation on bimetallic catalysts: properties and functions of surface Ni-Ag alloy
Dam, Anh Hoang; Wang, Hongmin; Dehghan-Niri, Roya; Yu, Xiaofeng; Walmsley, John; Holmen, Anders; Yang, Jia; Chen, De (Peer reviewed; Journal article, 2019)The paper presents a fundamental study of the properties and functions of well‐defined Ni−Ag surface alloys in methane decomposition and steam reforming, aiming at providing a better understanding of the principle for ... -
Microcalorimetry on Cu-MCM-22 Reveals Structure-Activity Relationships for the Methane-to-Methanol Reaction
Kvande, Karoline; Mawanga, Moses; Prodinger, Sebastian; Solemsli, Bjørn Gading; Yang, Jia; Olsbye, Unni; Beato, Pablo; Blekkan, Edd Anders; Svelle, Stian (Peer reviewed; Journal article, 2023)With a stepwise mechanism for direct methane activation to methanol (MTM) over Cu-zeolites, it is possible to produce methanol with high selectivity. With this study, we apply adsorption/desorption experiments with ... -
Molecular-level insights into the electronic effects in platinum-catalyzed carbon monoxide oxidation
Chen, Wenyao; Cao, J.B.; Yang, Jia; Cao, Yueqiang; Zhang, Hao; Jiang, Zheng; Zhang, Jing; Qian, Gang; Zhou, Xinggui; Chen, De; Yuan, Wei-Kang; Duan, Xuezhi (Peer reviewed; Journal article, 2021)A molecular-level understanding of how the electronic structure of metal center tunes the catalytic behaviors remains a grand challenge in heterogeneous catalysis. Herein, we report an unconventional kinetics strategy for ... -
Morphology and Activity of Electrolytic Silver Catalyst for Partial Oxidation of Methanol to Formaldehyde Under Different Exposures and Oxidation Reactions
Lervold, Stine; Arnesen, Kamilla; Beck, Nikolas; Lødeng, Rune; Yang, Jia; Bingen, Kristin; Skjelstad, Johan; Venvik, Hilde Johnsen (Journal article; Peer reviewed, 2019)Electrolytic silver particles were studied in relation to its morphology changes under different reactive and non-reactive atmospheres, and its catalytic activity in oxidation of methanol to formaldehyde (MTF), carbon ... -
Nickel Cobalt Catalyst for Methane Abatement in Marine Machinery
Lund-Johansen, Ragnhild Brokstad (Master thesis, 2017)Natural gas vehicles (NGVs) have been suggested as an alternative to conventional vehicles in the marine sector, in order to reduce the large contribution this sector provides to greenhouse gas emissions. Natural gas has ... -
NiCo2O4 Catalyst on Commercial Low Surface Area and Synthesized High Surface Area CeO2 For Catalytic Methane Abatement in Natural Gas Engines
Selnes, Jon Arve (Master thesis, 2020)Større utnyttelse av naturgass som marint brensel blir sett på som en mulig del av den globale, men også nasjonale løsningen med tanke på å redusere utslipp av klimagasser. Dette forutsetter midlertidig at overskuddsmetan ... -
Novel Alginate Complex-derived Fe Catalysts for Sustainable Lower Olefin Production: Fischer-Tropsch Synthesis Based on Renewable Feedstocks
Tafjord, Joakim (Doctoral theses at NTNU;2022:310, Doctoral thesis, 2022) -
Optimizing the shape anisotropy of gold nanoparticles for enhanced light harvesting and photocatalytic applications
Antony, Jibin; Bandyopadhyay, Sulalit; Yang, Jia; Rønning, Magnus (Journal article; Peer reviewed, 2022) -
Oxidation of Methanol to Formaldehyde (MTF) over Silver Catalyst
Stokkevåg, Susanne Klungland (Master thesis, 2020)Arbeidet som er utført i denne master oppgaven hadde som mål å bidra til forståelsen av metanol til formaldehyd reaksjonen, og sølv interaksjonene i disse forholdene. Sølvpartikler, nett og annulær ble behandlet i ulike ... -
Partial oxidation of methanol to formaldehyde in an annular reactor
Lervold, Stine; Lødeng, Rune; Yang, Jia; Skjelstad, Johan; Bingen, Kristin; Venvik, Hilde Johnsen (Peer reviewed; Journal article, 2021)A structured reactor with annular configuration was applied for studying methanol oxidation to formaldehyde over silver. By eliminating gas phase reactions, high formaldehyde selectivity (93–97%) was obtained at low methanol ... -
Promotional effect of in-situ generated hydroxyl on olefin selectivity of Co-catalyzed Fischer-Tropsch synthesis
Qi, Yanying; Aaserud, Christian; Yang, Jia; Holmen, Anders; Chen, De (Peer reviewed; Journal article, 2019)The understanding of the water effect on olefin selectivity in Fischer–Tropsch synthesis (FTS) is limited by the complexity of the reaction network. Herein, we employ propene hydrogenation as a model reaction to isolate ...