Blar i Institutt for kjemisk prosessteknologi på forfatter "Chen, De"
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Kinetics-assisted discrimination of active sites in Ru catalyzed hydrolytic dehydrogenation of ammonia borane
Fu, Wenzhao; Chen, Wenyao; Qian, Gang; Chen, De; Yuan, Weikang; Zhou, Xinggui; Duan, Xuezhi (Journal article; Peer reviewed, 2019)Identifying the underlying nature of the structure sensitivity from the catalyst active site point of view in heterogeneous catalytic reactions is of prime scientific and industrial importance. In this work, the kinetics-assisted ... -
Large-Scale Granulation of CaO-Based Pellets for High-Temperature Carbon Dioxide Capture
Olsvik, Maria (Master thesis, 2018)Abstract Pelletized CaO-based sorbents are made for the use in Moving Bed Carbonate Looping (MBCL) technology capturing CO2 at a low partial pressure of CO2 and high temperature, producing approximately 100% pure CO2. ... -
Li-metal-free prelithiation of Si-based negative electrodes for full Li-ion batteries
Zhou, Haitao; Wang, Xuehang; Chen, De (Journal article; Peer reviewed, 2015)Most of the high‐capacity positive‐electrode materials [for example, S, O2 (air), and MOx (M: V, Mn, Fe, etc.)] are Li‐deficient and require the use of a Li‐metal electrode or prelithiation. Herein, we report a novel ... -
Low temperature carbon dioxide capture by PEI-modified mesoporous silica: synthesis and performance analysis
Liu, Yun (Master thesis, 2021)Mesoporøse silisiumdioksydmidler ble fremstilt ved forskjellige synteseforhold ved konvensjonelle sol-gel-metoder. De stive sfæriske silisiumdioksidene med høyt overflateareal og høy porøsitet i smal distribusjon ble ... -
Manipulating Gold Spatial Location on Titanium Silicalite-1 To Enhance the Catalytic Performance for Direct Propene Epoxidation with H2 and O2
Feng, Xiang; Song, Zhaoning; Liu, Yibin; Chen, Xiaobo; Jin, Xin; Yan, Wenjuan; Yang, Chaohe; Luo, Jun; Zhou, Xinggui; Chen, De (Journal article; Peer reviewed, 2018)Engineering Au spatial locations on support harbors tremendous potential to boost catalytic performance but still remains a scientific and technological challenge. Herein, we devise a strategy to manipulate Au spatial ... -
Mechanistic aspects of facet-dependent CH<inf>4</inf>/C<inf>2+</inf> selectivity over a χ-Fe<inf>5</inf>C<inf>2</inf> Fischer–Tropsch catalyst
Pham, Thanh Hai; Cao, Junbo; Song, Nan; Cao, Yueqiang; Chen, Bingxu; Qian, Gang; Zhou, Xinggui; Chen, De; Duan, Xuezhi (Journal article; Peer reviewed, 2021) -
Mechanistic insight into size-dependent activity and durability in Pt/CNT catalyzed hydrolytic dehydrogenation of ammonia borane
Chen, Wenyao; Ji, Jian; Feng, Xiang; Duan, Xuezhi; Qian, Gang; Li, Ping; Zhou, Xinggui; Chen, De; Yuan, Weikang (Journal article; Peer reviewed, 2014)We report a size-dependent activity in Pt/CNT catalyzed hydrolytic dehydrogenation of ammonia borane. Kinetic study and model calculations revealed that Pt(111) facet is the dominating catalytically active surface. There ... -
Mechanistic Insights into Cobalt-based Fischer-Tropsch Synthesis
Qi, Yanying (Doctoral thesis at NTNU;2016:106, Doctoral thesis, 2016)Fischer-Tropsch synthesis (FTS) is an alternative process of yielding transportation fuels and chemicals by converting syngas derived from natural gas, biomass and coal. Cobalt-based catalysts are favorable catalysts for ... -
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 ... -
Methyl Methacrylate Synthesis: Thermodynamic Analysis for Oxidative Esterification of Methacrolein and Aldol Condensation of Methyl Acetate
Guan, , Y.; Ma, , H.; Chen, , W; Li, , M.; Qian, Gang; Chen, De; Zhou, Xinggui; Duan, Xuezhi (Peer reviewed; Journal article, 2020)Methyl methacrylate (MMA) as a specialty monomer of polymers has motivated industry to develop clean and sustainable technologies for its production. Herein, a comprehensive thermodynamic analysis of MMA production from ... -
Microscopic Insight to Nonlinear Voltage Dependence of Charge in Carbon-Ionic Liquid Supercapacitors
Mehandzhiyski, Aleksandar Yordanov; Wang, Xuehang; Anquetil-Deck, Candy; Chen, De; Grimes, Brian Arthur (Journal article; Peer reviewed, 2021) -
Mn promotion effects in Co based Fischer-Tropsch production of light olefins
Pedersen, Eirik Østbye (Doctoral theses at NTNU;2018:180, Doctoral thesis, 2018)In this work, Mn promotion of γ-Al2O3 supported Co catalysts was investigated for the purpose of producing light olefins via the Fischer-Tropsch synthesis process. CoMn/γ-Al2O3 catalysts were prepared by the incipient ... -
Model catalysts for Fischer-Tropsch synthesis
Nieto-Sandoval Rodriguez, Julia (Master thesis, 2014)Today, Fischer-Tropsch synthesis is the key process in the production of liquid fuels from synthesis gas (a mixture of CO + H2). This mixture can be obtained from fossil fuels (oil, natural gas or coal) and from renewable ... -
Model-aided catalyst prediction through descriptor-based hybrid semi-empirical approach
Wang, Yalan (Doctoral theses at NTNU;2019:67, Doctoral thesis, 2019)Model-aided catalyst prediction through descriptor-based hybrid semi-empirical approach Microkinetic model aided catalyst prediction is an advanced method for developing improved and novel catalysts without intensive ... -
Modified dolomite-based pellets synthesized by one-pot method for high-temperature CO2 capture
Wold, Anne Charlotte (Master thesis, 2021)Utslipp av CO2 grunnet menneskelig aktivitet er en av de største utfordringene verden står ovenfor i dag. Denne masteroppgaven er en del av et prosjekt hvor en MBCL (Moving Bed Carbonate Looping)-reaktor har blitt utviklet. ... -
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 ... -
Monolithic, microchannel and carbon nanofibers/carbon felt reactors for syngas conversion by Fischer-Tropsch syntehesis
Holmen, Anders; Venvik, Hilde Johnsen; Myrstad, Rune; Zhu, Jun; Chen, De (Journal article; Peer reviewed, 2013)The present contribution summarizes work carried out on different microstructured reactors in the Catalysis Group at the Norwegian University of Science and Technology during the last years. The work has involved co-operation ... -
Multifunctional Pd/Ni-Co catalyst for hydrogen production by chemical looping coupled with steam reforming of acetic acid
Fermoso, Javier; Gil, Maria V; Rubiera, Fernando; Chen, De (Journal article; Peer reviewed, 2014)High yield of high‐purity H2 from acetic acid, a model compound of bio‐oil obtained from the fast pyrolysis of biomass, was produced by sorption‐enhanced steam reforming (SESR). An oxygen carrier was introduced into a ... -
Multifunctional proppants for enhanced oil production from shales
Hemminghytt, Thomas Støme (Master thesis, 2015)The purpose of the work, which has been done during this thesis, has been to give a better basis for future research on the subject. The subject is functionalizing proppants and testing of these functions. The experimental ... -
New mechanism insights into methane steam reforming on Pt/Ni from DFT and experimental kinetic study
Niu, Juntian; Wang, Yalan; Qi, Yanying; Dam, Anh Hoang; Wang, Hongmin; Zhu, Yi-An; Holmen, Anders; Ran, Jingyu; Chen, De (Peer reviewed; Journal article, 2020)In this contribution, we combine density functional theory (DFT) calculations, experimental kinetic study and DFT-assisted analysis to elucidate the impact of the interface of monolayer Pt on the Ni surface on catalytic ...