Browsing NTNU Open by Author "Yang, Jia"
Now showing items 1-20 of 53
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A comprehensive kinetics study on non-isothermal pyrolysis of kerogen from Green River oil shale
Kuang, Wuqi; Lu, Mengke; Yeboah, Isaac; Qian, Gang; Duan, Xuezhi; Yang, Jia; Chen, De; Zhou, Xinggui (Journal article; Peer reviewed, 2018)Fundamentally understanding the pyrolysis kinetics of kerogen is of prime scientific and industrial importance. Herein, bitumen- and carbonates-free kerogen sample is prepared through Soxhlet extraction followed by ... -
A Steady-State Isotopic Transient Kinetic Study of Cobalt Catalysts: Mechanistic Insights and Effect of Cobalt Particle Size, Supports and Promoters
Yang, Jia (Doktoravhandlinger ved NTNU, 1503-8181; 2011:280, Doctoral thesis, 2011) -
Adsorption and reaction kinetics insights for industrialcatalyzed reactions
Mawanga, Moses (Doctoral theses at NTNU;2024:463, Doctoral thesis, 2024)Imagine a future where industrial processes are more efficient and with compact footprints – thanks to advances and improvements in chemical reactions. This research focuses on improving two such key reactions: the oxidation ... -
Au/uncalcined TS-1 catalysts for direct propene epoxidation with H2 and O2: Effects of Si/Ti molar ratio and Au loading
Feng, Xiang; Duan, Xuezhi; Yang, Jia; Qian, Gang; Zhou, Xinggui; Chen, De; Yuan, Weikang (Journal article; Peer reviewed, 2015)For direct propene epoxidation with H2/O2, TS-1 with blocked micropores (TS-1-B) is recognized as an attractive support for Au catalysts with enhanced stability and activity by suppressing the deactivation caused by micropore ... -
Biopolymers assisted preparation of carbon supported iron catalysts for Fischer-Tropsch
Claussen, Julie (Master thesis, 2020)Abstract will be available on 2023-06-30 -
BIOPOLYMERS ASSISTED PREPARATION OF COBALT BASED FISCHER-TROPSCH CATALYSTS
Hurtado Lopez, Iker (Master thesis, 2018) -
Biopolymers assisted preparation of iron based fischer-tropsch catalysts
Harneshaug, Marit Liebe (Master thesis, 2018) -
Catalysis in microstructured reactors - short review on smallscale syngas production and further conversion into methanol, DME and Fischer-Tropsch products
Venvik, Hilde Johnsen; Yang, Jia (Journal article; Peer reviewed, 2017)Synthesis gas production and further conversion via the Fischer-Tropsch, methanol and dimethyl ether (DME) syntheses is currently economic only in the large scale. Compact, modular, and safe technology efficient in smaller ... -
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. ... -
Effect of lanthanum on cobalt nickel catalysts for catalytic combustion of methane
Abdullahi, Najma Ali (Master thesis, 2018)The effect of lanthanum (La) on the catalytic behavior of nickel and cobalt catalysts de- rived from hydrotalcites in total combustion of methane was investigated. 12 wt. % Co (12Co), 12 wt. % Ni (12Ni) and 3.6 wt. % 8.4 ... -
Effect of oxide additives on the hydrotalcite derived Ni catalysts for CO2 reforming of methane
Niu, Juntian; Liland, Shirley Elisabeth; Yang, Jia; Rout, Kumar Ranjan; Ran, Jingyu; Chen, De (Journal article; Peer reviewed, 2018)Here we provide new mechanistic and kinetic insights into the functions of oxides on Ni catalysts in methane dry reforming combining kinetic studies with density functional theory (DFT) calculations. Hydrotalcite derived ... -
Effects of Potassium and Copper Promoters on Iron Fischer-Tropsch Catalysts
Hole, Nils-Olav Andersen (Master thesis, 2015)The demand for energy is an ever increasing problem in the world today. The need for more abundant energy sources to take over the role of crude oil is becoming more and more present. GTL processes (gas-to-liquid), which ... -
Effects of sulphur on a Co/Mn-based catalyst for Fischer-Tropsch reactions
Enger, Bjørn Christian; Walmsley, John; Svenum, Ingeborg-Helene; Tolchard, Julian R; Yang, Jia; Myrstad, Rune; Gjervan, Torbjørn; Khan, Asad Ahmad; Mutairi-Al, Abdulkarim; Karim, Khalid (Journal article; Peer reviewed, 2018)The long term effect of up to 10 ppm H2S was studied for Fischer–Tropsch conversion of syngas by catalytic testing at 240 °C, 5 bar, H2/CO = 2.1 and GHSV = 2400 Nml/gcat h. Sulphur was dosed after ~ 300 or ~ 1000 h time ... -
Electrochemical syngas production from CO2 and water with CNT supported ZnO catalysts
Hjorth, Ida; Wang, Yalan; Li, Yahao; Buan, Marthe Emelie Melandsø; Nord, Magnue; Rønning, Magnus; Yang, Jia; Chen, De (Peer reviewed; Journal article, 2020)Electrochemical reduction of CO2 and H2O can provide a promising pathway to synthesis gas generation for renewable electric energy storage and fuel production with the closed anthropogenic carbon cycle. However, the lack ... -
Engineering Electronic Platinum–Carbon Support Interaction to Tame Carbon Monoxide Activation
Chen, Wenyao; Liu, Changwei; Lian, Cheng; Yu, Yaxin; Zhang, Xiangxue; Qian, Gang; Yang, Jia; Chen, De; Zhou, Xinggui; Yuan, Weikang; Duan, Xuezhi (Journal article; Peer reviewed, 2022) -
Enhanced Catalytic Performance for Propene Epoxidation with H2 and O2 over Bimetallic Au–Ag/Uncalcined Titanium Silicate-1 Catalysts
Feng, Xiang; Yang, Jia; Duan, Xuezhi; Cao, Yueqiang; Chen, Bingxu; Chen, Wenyao; Lin, Dong; Qian, Gang; Chen, De; Yang, Chaohe; Zhou, Xinggui (Journal article; Peer reviewed, 2018)Gradually emerging environmental concerns have triggered the development of highly efficient catalysts for propene epoxidation with H2 and O2. Unfortunately, intensifying the activity and stability is still a challenging ... -
Enhanced Visible Light Absorption TiO2 Based Catalysts for Photocatalytic H2 Generation
Zubair, Muhammad (Doctoral theses at NTNU;2021:90, Doctoral thesis, 2021)Photocatalytic H2 generation from water, by utilizing semiconductors, is attractive process as the energy needed to break two chemical bonds of water and to form a chemical bond between hydrogen atoms is provided by the ... -
Establishing Characterization and Methodology for Analyzing Performance of Commercial Particulate Silver Catalyst for Formalin Production
Naustdal, Vegard (Master thesis, 2016)Formaldehyde is the simplest aldehyde and is an active organic compound in many reactions making it a versatile building block for the chemical industry. Formaldehyde can be produced by partial oxidative dehydrogenation ... -
Establishing Experimental and Characterization Methodology for Analyzing the Performance of Silver Catalysts for Formalin Production
Lervold, Stine (Master thesis, 2016)Formaldehyde is an essential component of wood adhesives, which can be used for a wide range of applications, and is an important intermediate in the production of several fine chemicals. Industrially, production of ...