Browsing NTNU Open by Author "Xu, Wenqi"
Now showing items 1-7 of 7
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Development of high capacity moisture-swing DAC sorbent for direct air capture of CO<inf>2</inf>
Wang, Xueru; Chen, Yan; Xu, Wenqi; Lindbråthen, Arne; Cheng, Xinyue; Chen, Xi; Zhu, Liangliang; Deng, Liyuan (Peer reviewed; Journal article, 2023) -
Effects of Porous Supports in Thin-Film Composite Membranes on CO<inf>2</inf> Separation Performances
Guo, Hongfang; Xu, Wenqi; Wei, Jing; Ma, Yulei; Qin, Zikang; Dai, Zhongde; Deng, Jing; Deng, Liyuan (Peer reviewed; Journal article, 2023)Despite numerous publications on membrane materials and the fabrication of thin-film composite (TFC) membranes for CO2 separation in recent decades, the effects of porous supports on TFC membrane performance have rarely ... -
Enhanced CO2/H2 separation by GO and PVA-GO embedded PVAm nanocomposite membranes
Xu, Wenqi; Lindbråthen, Arne; Janakiram, Saravanan; Ansaloni, Luca; Deng, Liyuan (Peer reviewed; Journal article, 2023)Membrane technology for CO2/H2 separation, especially when using CO2-selective membranes to keep H2 on the high-pressure retentate side, has been considered promising and energy-efficient for further H2 transport and ... -
Enhanced CO2/H2 separation by GO and PVA-GO embedded PVAm nanocomposite membranes
Xu, Wenqi (Doctoral theses at NTNU;2023:307, Doctoral thesis, 2023)The objective of this Ph.D. project is to develop facilitated transport nanocomposite membranes with superior CO2/H2 separation performances for H2 purification. The research activities include material synthesis, membrane ... -
Facilitated Transport Nanocomposite Membranes for CO<inf>2</inf>/H<inf>2</inf> Separation: The Effect of Mobile Carriers
Xu, Wenqi; Lindbråthen, Arne; Wang, Xueru; Dai, Zhongde; Deng, Liyuan (Peer reviewed; Journal article, 2023)Using CO2-selective membranes based on facilitated transport mechanisms has been reported as an energy-efficient approach for hydrogen purification from CO2-containing mixed gas streams. In this work, four CO2-philic mobile ... -
Large Area Patterning of Highly Reproducible and Sensitive SERS Sensors Based on 10-nm Annular Gap Arrays
Luo, Sihai; Mancini, Andrea; Lian, Enkui; Xu, Wenqi; Berté, Rodrigo; Li, Yi (Peer reviewed; Journal article, 2022)Applicable surface-enhanced Raman scattering (SERS) active substrates typically require low-cost patterning methodology, high reproducibility, and a high enhancement factor (EF) over a large area. However, the lack of ... -
Membrane process design for biohydrogen purification with simultaneous CO2 capture: Feasibility and techno-economic assessment
Xu, Wenqi; Lindbråthen, Arne; Janakiram, Saravanan; Ansaloni, Luca; Lei, Linfeng; Deng, Liyuan (Peer reviewed; Journal article, 2023)In this work, a membrane separation process is designed and optimized to purify dark fermentative biohydrogen by removing CO2. A CO2-selective PVAm-based nanocomposite membrane was selected considering its high CO2/H2 ...