Blar i UiS Brage på forfatter "Yu, Zhixin"
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Leveraging Synergies by Combining Polytetrafluorethylene with Polyvinylidene Fluoride for Solvent-Free Graphite Anode Fabrication
Zhang, Yang; Lu, Song; Lou, Fengliu; Yu, Zhixin (Peer reviewed; Journal article, 2022)Solvent-free graphite anode is fabricated successfully with the synergistic effect of polytetrafluorethylene (PTFE) and polyvinylidene fluoride (PVDF). PTFE acts as a processing aid reagent to form a self-supporting electrode ... -
Lithium-Ion Capacitors: A Review of Strategies toward Enhancing the Performance of the Activated Carbon Cathode
Eleri, Obinna Egwu; Lou, Fengliu; Yu, Zhixin (Peer reviewed; Journal article, 2023)Lithium-ion capacitors (LiC) are promising hybrid devices bridging the gap between batteries and supercapacitors by offering simultaneous high specific power and specific energy. However, an indispensable critical component ... -
Low Pressure Adsorption of Carbon Dioxide and Nitrogen on Activated Carbon and Zeolite 13X
Chidiac, Imad (Master thesis, 2023)Several gas separation techniques have been used throughout the year, however the most cost effective and energy efficient gas separation process to date is that of adsorption. Adsorption of carbon dioxide from flue or ... -
Metallic nanoparticles for enhanced heavy oil recovery: promises and challenges
Guo, Kun; Li, Hailong; Yu, Zhixin (Journal article; Peer reviewed, 2015)With the increasing global energy demand, great attention has been focused on utilizing heavy oil and bitumen, which are potentially located ultra-deep underground and cannot be easily recovered. Numerous recovery approaches ... -
New Insights into the Behaviour of Commercial Silicon Electrode Materials via Empirical Fitting of Galvanostatic Charge-Discharge Curves
Huld, Frederik Thorbjørn; Eleri, Obinna Egwu; Lou, Fengliu; Yu, Zhixin (Peer reviewed; Journal article, 2023)Silicon (Si) materials for use in Lithium ion batteries (LIBs) are of continued interest to battery manufacturers. With an increasing number of commercially available Si materials, evaluating their performance becomes a ... -
NiFe hydrotalcite-derived catalyst for CO2 reforming of methane: the impact of calcination and reduction temperature
Parra Camacho, Anderson (Masteroppgave/UIS-TN-IEP/2019;, Master thesis, 2019-06-15)ABSTRACT Carbon dioxide (CO2) emissions has become a major environmental concern for today’s society. As energy demand keeps on rising, the transition to cleaner energies is not fast enough to completely reduce greenhouse ... -
Non-precious metal activated MoSi2N4 monolayers for high-performance OER and ORR electrocatalysts: A first-principles study
Lu, Song; Zhang, Yangzi; Lou, Fengliu; Guo, Kun; Yu, Zhixin (Peer reviewed; Journal article, 2022)Developing high-performance electrocatalysts for oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) is crucial for energy conversion and storage. Recently, a new type of two-dimensional material MoSi2N4 ... -
Optimization of the Resorcinol-Formaldehyde/Silicon Composite Synthesis
Hammer, Thomas (Master thesis, 2021)Batteries and capacitors are promising candidates for a greener future in energy storage. These technologies are highly dependant on the advanced materials used. Resorcinol-formaldehyde resin coated silica has proved to ... -
Preparation of Activated Carbon from Biomass for High Performance Supercapacitors
Azuatalam, Kingsley (Masteroppgave/UIS-TN-IPT/2017;, Master thesis, 2017-06-15)Activated carbon was successfully synthesized from waste paper by physical, chemical and a combination of both activation procedures. The chemically activated carbon samples was achieved by using H3PO4 and KOH as agents. ... -
Promoting effect of Fe on supported Ni catalysts in CO2 methanation by in situ DRIFTS and DFT study
Huynh, Huong Lan; Zhu, Jie; Zhang, Guanghui; Shen, Yongli; Tucho, Wakshum Mekonnen; Ding, Yi; Yu, Zhixin (Peer reviewed; Journal article, 2020-12)Bimetallic NiFe catalysts have emerged as a promising alternative to the traditional Ni catalysts for CO2 methanation. However, the promoting effect of Fe on the bimetallic catalysts remains ambiguous. In this study, a ... -
Recent Advances in Green Synthesis and Modification of Inorganic Nanomaterials by Ionizing and Non-Ionizing Radiations
Guo, Kun; Baidak, Aliaksandr; Yu, Zhixin (Peer reviewed; Journal article, 2020-08)Alternative to conventional Joule heating, radiation in the forms of electromagnetic waves and particle beams offers a promising route to energize the green synthesis and modification of nanomaterials with high time ... -
Recent Progress in Two-Dimensional Materials for Electrocatalytic CO2 Reduction
Lu, Song; Lou, Fengliu; Yu, Zhixin (Peer reviewed; Journal article, 2022)Electrocatalytic CO2 reduction (ECR) is an attractive approach to convert atmospheric CO2 to value-added chemicals and fuels. However, this process is still hindered by sluggish CO2 reaction kinetics and the lack of efficient ... -
Recent technology development in solvent-free electrode fabrication for lithium-ion batteries
Zhang, Yang; Lu, Song; WANG, Zaisheng; Volkov, Vladislav; LOU, feng liu; Yu, Zhixin (Peer reviewed; Journal article, 2023-07)Electrodes for commercial lithium-ion batteries (LiBs) are typically manufactured with slurry-casting (SC) procedure. The high cost and limited energy density caused by SC procedure impede new emerging application. Developing ... -
Revealing Silicon’s Delithiation Behaviour through Empirical Analysis of Galvanostatic Charge–Discharge Curves
Huld, Frederik Thorbjørn; Mæhlen, Jan Petter; Keller, Caroline; Lai, Samson Yuxiu; Eleri, Obinna E.; Koposov, Alexey; Yu, Zhixin; Lou, FengLiu (Peer reviewed; Journal article, 2023-04)The galvanostatic charge–discharge (GCD) behaviour of silicon (Si) is known to depend strongly on morphology, cycling conditions and electrochemical environment. One common method for analysing GCD curves is through ... -
Revealing Silicon’s Delithiation Behaviour through Empirical Analysis of Galvanostatic Charge–Discharge Curves
Huld, Frederik Thorbjørn; Mæhlen, Jan Petter; Keller, Caroline; Lai, Samson Yuxiu; Eleri, Obinna Egwu; Koposov, Alexey; Yu, Zhixin; Lou, FengLiu (Peer reviewed; Journal article, 2023-04)The galvanostatic charge–discharge (GCD) behaviour of silicon (Si) is known to depend strongly on morphology, cycling conditions and electrochemical environment. One common method for analysing GCD curves is through ... -
Revisiting Polytetrafluorethylene Binder for Solvent-Free Lithium-Ion Battery Anode Fabrication
Zhang, Yang; Huld, Frederik; Lu, Song; Jektvik, Camilla; Lou, Fenliu; Yu, Zhixin (Peer reviewed; Journal article, 2022)Solvent-free (SF) anodes with different carbon materials (graphite, hard carbon, and soft carbon) were fabricated to investigate the stability of different anodes with polytetrafluorethylene (PTFE) degradation. The graphite ... -
Solvent-Free Electrode Fabrication Based on Polytetrafluoroethylene Fibrillation for Lithium-ion Batteries
Zhang, Yang (PhD Theses;883, Doctoral thesis, 2023)The commercial lithium-ion batteries (LiBs) electrodes are manufactured with slurry casting (SC) procedure, where a large amount of energy is consumed, increasing the manufacturing cost a lot. In addition, the SC procedure ... -
Solvent-free lithium iron phosphate cathode fabrication with fibrillation of polytetrafluoroethylene
Zhang, Yang; Lu, Song; Lou, Fengliu; Yu, Zhixin (Peer reviewed; Journal article, 2023)Fabricating electrode for lithium-ion batteries (LiBs) with solvent-free (SF) procedure can save energy and improve electrochemical performance simultaneously. Polymer fibrillation is one of the most promising SF procedures ... -
Structured NiFe catalysts derived from in-situ grown layered double hydroxides on ceramic monolith for CO2 methanation
Huynh, Huong Lan; Tucho, Wakshum Mekonnen; Yu, Zhixin (Peer reviewed; Journal article, 2020)Monolithic catalysts for CO2 methanation have become an active research area for the industrial development of Power-to-Gas technology. In this study, we developed a facile and reproducible synthesis strategy for the ... -
Sulfur‐Decorated Ni−N−C Catalyst for Electrocatalytic CO2 Reduction with Near 100 % CO Selectivity
Lu, Song; Zhang, Yang; Mady, Mohamed F; Eleri, Obinna Egwu; Tucho, Wakshum Mekonnen; Mazur, Michal; Li, Ang; Lou, Fengliu; Gu, Mingfen; Yu, Zhixin (Peer reviewed; Journal article, 2022-08)Developing highly efficient electrocatalysts for electrochemical CO2 reduction (ECR) to value-added products is important for CO2 conversion and utilization technologies. In this work, a sulfur-doped Ni−N−C catalyst is ...