Blar i NTNU Open på forfatter "Dai, Zhongde"
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Incorporation of an ionic liquid into a midblock-sulfonated multiblock polymer for CO2 capture
Dai, Zhongde; Ansaloni, Luca; Ryan, Justin J.; Spontak, Richard J; Deng, Liyuan (Journal article; Peer reviewed, 2019)In the present work, hybrid block ionomer/ionic liquid (IL) membranes containing up to 40 wt% IL are prepared by incorporating 1-butyl-3-methylimidazolium tetrafluoroborate ([Bmim][BF4]) into a midblock-sulfonated pentablock ... -
Manipulation of Fibril Surfaces in Nanocellulose-Based Facilitated Transport Membranes for Enhanced CO2 Capture
Janakiram, Saravanan; Yu, Xinyi; Ansaloni, Luca; Dai, Zhongde; Deng, Liyuan (Peer reviewed; Journal article, 2019)The transition toward sustainable processing entails the use of biobased alternatives as functional materials to reduce the overall carbon footprint. Nanocellulose, due to its natural availability, biodegradability, excellent ... -
Mathematical modeling and validation of CO2 mass transfer in a membrane contactor using ionic liquids for pre-combustion CO2 capture
Usman, Muhammad; Dai, Zhongde; Hillestad, Magne; Deng, Liyuan (Journal article; Peer reviewed, 2017)Mass transfer and mathematical modelling of CO2 absorption in a tubular membrane contactor using 1-Butyl-3-methylimidazolium Tricyanomethanide ([Bmim][TCM]) for pre-combustion CO2 capture has been studied in this work. A ... -
Membrane fabricated via a facile non-solvent induced microstructure re-arrangement with superior CO<inf>2</inf> separation performances
Wei, Jing; Ma, Yulei; Qin, Zikang; Jin, Ziheng; Jin, Yao; Yang, Lin; Yao, Lu; Jiang, Wenju; Deng, Yi; Huang, Ya; Zhao, Hongyong; Dong, Jie; Deng, Liyuan; Dai, Zhongde (Journal article; Peer reviewed, 2023)CO2 capture and storage (CCS) is taken as an immediate solution to mitigate the impactof increasing atmospheric CO2 on global climate change, and CO2 separation using high-performance membranes is considered a green and ... -
Membranes and membrane processes for CO<inf>2</inf> separation: MEMFO's long-term effort in reducing carbon emissions
Deng, Liyuan; Lindbråthen, Arne; Janakiram, Saravanan; Ansaloni, Luca; Dai, Zhongde (Journal article; Peer reviewed, 2024)Urgent actions are needed to reduce CO2 emissions and mitigate the increasingly severe impacts of climate change. Since the 1990s, the membrane research group (MEMFO) at the Norwegian University of Science and Technology ... -
Membranes for CO<inf>2</inf> capture and separation: Progress in research and development for industrial applications
Dai, Zhongde; Deng, Liyuan (Peer reviewed; Journal article, 2024) -
Modelling of a tubular membrane contactor for pre-combustion CO2 capture using ionic liquids: Influence of the membrane configuration, absorbent properties and operation parameters
Dai, Zhongde; Usman, Muhammad; Hillestad, Magne; Deng, Liyuan (Journal article; Peer reviewed, 2016)A membrane contactor using ionic liquids (ILs) as solvent for pre-combustion capture CO2 at elevated temperature (303–393 K) and pressure (20 bar) has been studied using mathematic model in the present work. A comprehensive ... -
Morphologically Tunable MOF Nanosheets in Mixed Matrix Membranes for CO2 Separation
Deng, Liyuan; Deng, Jing; Dai, Zhongde; Hou, Jingwei (Peer reviewed; Journal article, 2020)This study first develops a facile method to synthesize zeolitic imidazolate framework cuboid (ZIF-C) nanosheets with tunable thickness from 70 to 170 nm from aqueous polymer solutions. The obtained ZIF-C nanosheets were ... -
Nafion/IL hybrid membranes with tuned nanostructure for enhanced CO2 separation: effects of ionic liquid and water vapor
Dai, Zhongde; Ansaloni, Luca; Ryan, Justin J.; Spontak, Richard J; Deng, Liyuan (Journal article; Peer reviewed, 2018)Polyelectrolytes have been reported to display gas permeation properties that can be of significant interest for CO2 capture applications, especially when they are fully hydrated. In this work, hybrid membranes prepared ... -
Nafion/PEG hybrid membrane for CO 2 separation: Effect of PEG on membrane micro-structure and performance
Dai, Zhongde; Aboukeila, Hesham; Deng, Jing; Ansaloni, Luca; Baschetti, Marco Giacinti; Deng, Liyuan (Journal article; Peer reviewed, 2018)In the present work, PEGDME with different molecular weight (Mn ∼ 250 and 500 g/mol) was added into Nafion-based membranes as CO2-philic additive, aiming at improving their CO2 capture performance. The physical, chemical ... -
Nanocellulose Crystal-Enhanced Hybrid Membrane for CO2 Capture
Dai, Zhongde; Deng, Jing; Ma, Yulei; Guo, Hongfang; Wei, Jing; Wang, Bangda; Jiang, Xia; Deng, Liyuan (Peer reviewed; Journal article, 2022)Developing a membrane material with both high CO2 permeability and high CO2/N2 selectivity is always desired for CO2 capture, while improving the sustainability of the membrane preparation process is of equal importance. ... -
Nanocomposite membranes with high-charge and size-screened phosphorylated nanocellulose fibrils for CO2 separation
Helberg, Ragne M Lilleby; Torstensen, Jonathan Økland; Dai, Zhongde; Janakiram, Saravanan; Chinga-Carrasco, Gary; Gregersen, Øyvind Weiby; Syverud, Kristin; Deng, Liyuan (Peer reviewed; Journal article, 2020)In this study, cellulose nanofibrils (CNF) of high charge (H-P-CNF) and screened size (H-P-CNF-S) were fabricated by increasing the charge of phosphorylated cellulose nanofibrils (P-CNFs) during the pre-treatment step of ... -
Pebax/PEG Grafted CNT Hybrid Membranes for Enhanced CO2/N2 Separation
Dai, Zhongde; Deng, Jing; Peng, Kang-Jen; Liu, Ying-Ling; Deng, Liyuan (Peer reviewed; Journal article, 2019)In the present study, poly(ethylene glycol) (PEG) functionalized carbon nanotubes (CNT-PEG) were used as nanoadditives to fabricate hybrid membranes for enhanced CO2 separation in Pebax 1657 matrix. The resultant membranes ... -
Performance of mixed matrix membranes containing porous two-dimensional (2D) and three-dimensional (3D) fillers for CO2 separation: A review
Ahmadi, Mahdi; Janakiram, Saravanan; Dai, Zhongde; Ansaloni, Luca; Deng, Liyuan (Journal article; Peer reviewed, 2018)Application of conventional polymeric membranes in CO2 separation processes are limited by the existing trade-off between permeability and selectivity represented by the renowned upper bound. Addition of porous nanofillers ... -
Performance of Nanocomposite Membranes Containing 0D to 2D Nanofillers for CO2 Separation: A Review
Janakiram, Saravanan; Ahmadi, Mahdi; Dai, Zhongde; Ansaloni, Luca; Deng, Liyuan (Journal article; Peer reviewed, 2018)Membrane technology has the potential to be an eco-friendly and energy-saving solution for the separation of CO2 from different gaseous streams due to the lower cost and the superior manufacturing features. However, the ... -
Poly(1-trimethylsilyl-1-propyne)-Based Hybrid Membranes: Effects of Various Nanofillers and Feed Gas Humidity on CO2 Permeation
Dai, Zhongde; Løining, Vilde; Deng, Jing; Ansaloni, Luca; Deng, Liyuan (Journal article; Peer reviewed, 2018)Poly(1-trimethylsilyl-1-propyne) (PTMSP) is a high free volume polymer with exceptionally high gas permeation rate but the serious aging problem and low selectivity have limited its application as CO2 separation membrane ... -
Polymeric membranes and their derivatives for H2/CH4 separation: State of the art
Huang, Liu; Xing, Ziman; Zhuang, Xinyi; Wei, Jing; Ma, Yulei; Wang, Bangda; Jiang, Xia; He, Xuezhong; Deng, Liyuan; Dai, Zhongde (Peer reviewed; Journal article, 2022)The hydrogen economy becomes an important route in approaching carbon neutrality. Compared to conventional methods, membrane separation possesses combined merits, including energy-saving, convenience, and economic efficiency. ... -
PVA/PVP blend polymer matrix for hosting carriers in facilitated transport membranes: Synergistic enhancement of CO2 separation performance
Helberg, Ragne M Lilleby; Dai, Zhongde; Ansaloni, Luca; Deng, Liyuan (Journal article; Peer reviewed, 2019)CO2 separation performance in facilitated transport membranes has been reported depended not only on the CO2 carrier properties but also to a great extent on the polymeric matrix regarding the capacity of retaining water ... -
Recent advances in multi-layer composite polymeric membranes for CO2 separation: A review
Dai, Zhongde; Ansaloni, Luca; Deng, Liyuan (Journal article; Peer reviewed, 2016)The development of multilayer composite membranes for CO2 separation has gained increasing attention due to the desire for energy efficient technologies. Multilayer composite membranes have many advantages, including the ... -
Synthesis of Crosslinked PEG/IL Blend Membrane via One-Pot Thiol–Ene/Epoxy Chemistry
Deng, Jing; Dai, Zhongde; Deng, Liyuan (Journal article, 2020)Poly(ethylene glycol) (PEG)-based membranes have obtained considerable attentions for CO2 separation for their promising CO2 separation performance and excellent thermal/ chemical resistance. In this work, a one-pot ...