CHEMICAL ENGINEERING JOURNAL
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2022
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IF 16.744
Qinlan Luo,Bohak Yoon,Hongxia Gao,Juan Lv,Gyeong S. Hwang,Min Xiao,Zhiwu Liang
To reduce the regeneration energy consumption for CO 2 capture, an advanced monoethanolamine (MEA) + 2-(ethylamino)ethanol (EAE) + sulfolane biphasic aqueous solution was developed, and the phase separation mechanism was explored. The effects of the concentration ratio on the phase separation behavior, CO 2 absorption performance, CO 2 loading at the phase separation point, and CO 2 desorption performance of MEA + EAE + sulfolane solutions were investigated comprehensively in experiments. The 3 M MEA + 2 M EAE + 5 M sulfolane showed the best properties with a large CO 2 loading of 0.32 mol/mol at the phase separation point and the relative low regeneration energy consumption, which is comparable to 5 M MEA in absorption with an improved desorption performance. The molecular mechanism of phase separation was revealed by molecular dynamics simulations, illustrating that strong hydrogen bonding between amine products and water and enhanced intermolecular interaction among amine products, would promote an aggregation of amine products. This study provides a promising candidate for energy-efficient CO 2 capture with molecular insights into a liquid–liquid phase separation.
研究领域:
化学工程
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环境科学
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计算化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Qiujun Wang,Nana Bai,Yelun Xin,Xiaomeng Fan,Di Zhang,Zhaojin Li,Qujiang Sun,Huilan Sun,Bo Wang,Guoxu Wang,Li-Zhen Fan
LiCoO 2 (LCO) is a prominent high-voltage cathode material due to its exceptional energy density and impressive theoretical specific capacity of 274 mAh g −1 . However, challenges such as irreversible structural phase transitions, loss of reactive oxygen, and cobalt dissolution can lead to unstable interfaces between the electrolyte and the LCO cathode. In this study, sulfolane (SUL)-based composite polymer electrolytes (CPEs) were synthesized through in-situ polymerization, and the LCO cathode was modified using vinylidene carbonate (VC) and lithium difluoro(oxalato)borate (LiDFOB). The synergistic effects of SUL and VC/LiDFOB facilitated the formation of a more stable cathode-electrolyte interface (CEI) layer. Consequently, the Li/EFHTL-15 %SUL/LCO-VC-LiDFOB cell demonstrated excellent reversible cycling performance, achieving 86.36 % capacity retention after 300 cycles at 0.5C within a voltage range of 2.8–4.4 V at 25 ℃. This work provides a viable approach for enhancing the interface stability of the LCO cathode in CPEs.
研究领域:
材料科学
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电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2017
·
IF 3.012
Hongming Zhou,Demin Xiao,Chengjie Yin,Zhaohui Yang,Kaiwen Xiao,Jian Li
The electrolytes based on lithium difluoro(oxalate)borate (LiODFB) and sulfolane (SL) including LiODFB-ethylene carbonate (EC)/dimethyl carbonate (DMC) and LiPF 6 -EC/DMC as the references have been studied on electrochemical performance and interfacial stability in Li/LiNi 0.5 Mn 1.5 O 4 cells. LiODFB-containing electrolytes show outstanding electrochemical stability within 5.5 V due to the passivation phenomenon on the cathodes, while LiPF 6 -containing electrolytes undergo continuous decomposition beyond 4.5 V. The initial charge/discharge profiles and cyclic voltammetry (CV) curves prove that the cell with LiODFB-SL/DMC(2:1 by vol.) electrolyte has lower degree of polarization and better reversibility. The cathode with LiODFB-SL/DMC(2:1 by vol.) electrolyte displays the best cycling performance and the cathode with LiPF 6 -EC/DMC(1:1 by vol.) electrolyte displays the worst cycling performance. AC impedance shows that the cell cycling with LiODFB-SL/DMC(2:1 by vol.) electrolyte has much smaller resistance of charge transfer on cathode/electrolyte interface than the cell cycling with LiODFB-EC/DMC(1:1 by vol.) electrolyte. The characterization of the cathode surfaces indicates that a more homogeneous and compact passivation layer forms on the cathode cycling with LiODFB-SL/DMC(2:1 by vol.) electrolyte to greatly improve the interfacial stability for the reason that SL motivates the passivation reaction of LiODFB and itself participates the formation of the passivation layers. Therefore, LiODFB-SL/DMC(2:1 by vol.) is a promising electrolyte for LiNi 0.5 Mn 1.5 O 4 cathode.
研究领域:
材料科学
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电化学
✓ 已验证
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2025
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IF 5.6
Qiujun Wang,Yifei Wang,Nana Bai,Xiaomeng Jia,Zhaojin Li,Qujiang Sun,Ranran Li,Fei Yuan,Bo Wang
LiCoO 2 (LCO) stands as one of the dominant cathode materials in commercial lithium-ion batteries due to its high energy density and extended cycle life. However, irreversible structural phase transitions (O3 to H1–3) are triggered when the LCO is charged beyond 4.4 V, accompanied by lattice oxygen release and cobalt dissolution. These phenomena aggravate cathode electrolyte interfacial side reactions, ultimately resulting in progressive capacity decay and coulombic efficiency deterioration. Herein, capitalizing on the high solubility of LiNO 3 in sulfolane (SUL), a novel carbonate-based composite polymer electrolyte (CPE) was engineered to in-situ construct cathode electrolyte interface (CEI) layer enriched with Li 3 N, Li 2 O, Li 2 SO 4 , Li 2 SO 3 , and RSO 3 Li through LiNO 3 decomposition, effectively suppressing cobalt dissolution. Remarkably, capacity retention of 73.93 % was reached after 100 cycles under 4.6 V. This work highlights a synergistic SUL-LiNO 3 interfacial modulation strategy, offering a pioneering electrolyte design paradigm for 4.6 V-class LCO batteries.
研究领域:
材料科学
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电化学
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能源存储
✓ 已验证
产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
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2026
·
IF 2.5
Jian He,Menghan Lu,Xinggang Wu,Haobo Gou,Ning Zhang,Zhiqiang Xu
The steel industry faces the dual pressures of carbon reduction and ultra-low emissions throughout production, making integrated CO2 capture and deep desulfurization of blast furnace gas essential. Conventional alcohol amine-based scrubbing agents have limitations such as low absorption capacity, regeneration difficulties, and high corrosivity. To address these issues, a CO2, COS (carbon oxysulfide), and H2S integrated high-efficiency removal biphasic absorbent was developed. The novel biphasic absorbent composed of sulfolane (SF), diethanolamine (DEA), 2-amino-2-methyl-1-propanol (AMP), piperazine (PZ), and H2O, achieved a removal rate of over 90% for CO2, COS, and H2S, under the tested conditions, while exhibiting low rich-phase viscosity and acceptable anti-corrosion performance. Optimal regeneration was attained at 110–120 °C, with regeneration efficiencies exceeding 85% and an estimated energy consumption of approximately 2.51 GJ per ton CO2 (about 33.9% lower than 30 wt% MEA), while exhibiting stable cyclic regeneration. Spectroscopic analyses (FTIR, 1H/13C NMR) indicate that H2S undergoes proton transfer to amine sites to form bisulfide containing quaternary ammonium salts, whereas CO2 and COS react with amine functionalities to yield carbamate and thiocarbamate species that preferentially partition into the aqueous-rich phase; sulfolane remains in the organic phase, enabling liquid–liquid separation. This research provides a promising basis for simultaneous pollution control and CO2 mitigation in the steel sector, aligning ultra-low emission targets with decarbonization efforts and offering potential environmental and economic benefits.
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2019
·Vol. 30
·期 5
·5098-5108
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IF 2.195
Zhou Hongming,Liu Bin,Xiao Demin,Yin Chengjie,Li Jian
Spinel LiNi 0.5 Mn 1.5 O 4 (LNMO) cathode with high voltage plateau at around 4.7 V (vs. Li/Li + ) has attracted great attention. While the unsatisfactory electrochemical performance at high voltage hinders its practical application in next generation lithium ion batteries. Based on our previous research, FEC as electrolyte additive significantly improves the electrochemical performance of high voltage LNMO cell. The LNMO/Li cell with 4 wt% FEC shows the best rate capability, 76% capacity retention even at 5C. And the high temperature cycling performance of LNMO/G full cell with FEC is improved. The result from Raman indicates that FEC can transform the association structure of AGGs in the electrolytes to the salvation structure of SSIPs which increases the conductivity of electrolyte. EIS, SEM, TEM, XPS and FTIR analyses indicate that a more stable CEI film has been formed on the cathode surface with appropriate FEC as additive, which can promote the transport of lithium ions and inhibit the dissolution of transition metal elements.
研究领域:
材料科学
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电化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
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2018
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IF 8.097
Chunlei Li,Peng Wang,Shiyou Li,Dongni Zhao,Qiuping Zhao,Haining Liu,Xiaoling Cui
Electrolytes based on sulfolane (SL) solvents and lithium bis(oxalato)borate (LiBOB) chelato-borate complexes have been reported many times for use in advanced lithium-ion batteries due to their many advantages. This study aims to clarify the active mechanism of the interphase film-forming process to optimize the properties of these batteries by experimental analysis and theoretical calculations. The results indicate that the self-repairing film-forming process during the first cycle is divided into three stages: the initial film formation with an electric field force of ∼1.80 V, the further growth of the preformation solid electrolyte interphase (SEI) film at ∼1.73 V, and the final formation of a complete SEI film at a potential below 0.7 V. Additionally, we can deduce that the decomposition of LiBOB and SL occurs throughout nearly the entire process of the formation of the SEI film. The decomposition product of BOB– anions tends to form films with an irregular structure, whereas the decomposition product of SL is in favor of the formation of a uniform SEI film.
研究领域:
材料科学
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电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2019
·
IF 3.375
Sen Liu,Hao Ling,Juan Lv,Hongxia Gao,Yanqing Na,Zhiwu Liang
The sulfolane was, surprisingly, found to be a universal phase-splitting solvent in a serial of aqueous primary alkanolamine solution for CO2 removal; the reaction product of carbamate and hydrophilicity of amine can be the key factor for triggering phase change; also, the phase change can have a significant effect on CO2 capture performance. To comprehensively understand the effect of phase change on absorption, stripping, and phase separation performance, MEA sulfolane-based solution was chosen as a typical biphasic system for investigation. First, the experimental results revealed that the phase change can dramatically decrease the absorption rate and lead to less CO2 capacity in absorption processes. Second, the enriched MEA in separated solution can substantially decrease the energy consumption for CO2 stripping but exorbitant concentration of MEA can significantly reduce the CO2 removal efficiency in a quasicycle of absorption and desorption processes. Third, the phase separation rate of emulsion of MEA/sulfolane solution can be obviously improved by the increasing temperature, and fortunately, the increasing temperature had less effect on miscible solubility of MEA and sulfolane in two separated phases. Finally, on consideration of the absorption rate, energy consumption, and phase separation rate, a new technological process was proposed for CO2 capture using primary alkanolamine sulfolane-based solution to achieve the goal of relative high CO2 removal efficiency and energy saving.
研究领域:
化学工程
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环境科学
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产品关联
DOI
高影响因子
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
·
2019
·Vol. 95
·期 3
·649-664
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IF 2.659
Liangyu Zou,Hongxia Gao,Zeyang Wu,Zhiwu Liang
BACKGROUND The addition of a physical solvent to a traditional chemical absorbent has been shown to improve the absorption and desorption performance of the absorbent system. This type of novel absorbent system combining a single physical solvent with an amine solvent is a promising development in the industrial application of CO 2 capture. RESULTS Hybrid solutions composed of Monoethanolamine (MEA), a physical solvent, and H 2 O were comprehensively investigated using the rapid solvent screening apparatus and a VLE apparatus. The results show that 30 wt% MEA with 20 wt% Sulfolane and 50 wt% H 2 O achieved higher rich loading, strong cyclic CO 2 capacity and the highest desorption rate over a wide range of CO 2 loadings. Also, the mass transfer performance of CO 2 absorption into the 30 wt% MEA and 20 wt% Sulfolane solution was investigated in a lab-scale random packing column. The effects of liquid flow rate, liquid feed temperature, lean CO 2 loading, inert gas flow rate and CO 2 partial pressure on the mass transfer performance were evaluated in terms of volumetric overall mass transfer coefficient ( K G a v ). Furthermore, a correlation was developed for CO 2 absorption into MEA/Sulfolane solution in a random packing column using semi-empirical models as functions. CONCLUSION Unlike for amine solution alone, inert gas flow rate is an indispensable operating parameter in the MEA/Sulfolane system. A mass transfer correlation model was established and holds significance in studying the kinetics of CO 2 absorption by a mixture of physical and chemical solvents and for the optimal design of Dixon-ring random packing columns. © 2019 Society of Chemical Industry
研究领域:
化学工程
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Xiaodie Deng,Jialin Li,Pengbin Lai,Silan Kuang,Jiaxiang Liu,Pengpeng Dai,Haiming Hua,Peng Dong,Yingjie Zhang,Yang Yang,Jinbao Zhao
High-voltage lithium metal batteries (LMBs) matched with Ni-rich cathodes can deliver high energy density to satisfy the rapid development of power battery systems. However, conventional solid electrolyte interphase (SEI) or cathode electrolyte interphase (CEI) composed of Li 2 CO 3 , Li 2 O, LiF and alkyl lithium carbonate cannot meet the requirements for high-voltage LMBs in terms of stability and mechanical performance. Herein, a sulfolane-based electrolyte assisted with co-solvent and dual-salt strategies is developed to realize tailored LiF-boride-sulfide-containing interphases on both electrodes, in which the decomposition product RSO x can combine various inorganic and organic components. The improved integrity of interphases can mitigate the continuous decomposition of the electrolyte, thereby promoting uniform and dense lithium deposition and protecting the structure of cathode materials. Thus, the prepared sulfolane-based electrolyte results in an average Coulombic efficiency of 99.1% for Li||Cu cells and enables 4.7 V Li||LiNi 0.8 Co 0.1 Mn 0.1 O 2 cells to maintain 80.0% capacity retention after 200 cycles. Besides, Cu||LiNi 0.8 Co 0.1 Mn 0.1 O 2 anode-free cells (3.5 mAh cm −2 , capacity retention of 70.5% after 50 cycles) further confirm the practicality of the prepared electrolyte. This work offers a direct and efficient method to enhance the integrity and stability of interphases by optimizing the electrolyte composition.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
·
2021
·
IF 2.694
Zenghui Wang,Wenyang Fan,Dongmei Xu,Shanshan He,Huiwen Huang,Jun Gao,Yinglong Wang
Clean utilization of catalytically cracked diesel is of paramount importance in the industry. The separation of polycyclic aromatic hydrocarbons (PAHs) from catalytically cracked diesel can significantly reduce the content of aromatics and increase the cetane number to improve the quality of diesel. In this work, for extracting the PAH 1-methylnaphthalene from the model fluid catalytic cracking diesel, the liquid–liquid equilibrium phase behavior for the quaternary systems (n-decane + 1-tetradecene + 1-methylnaphthalene + sulfolane/dimethyl sulfoxide) were explored at 303.15, 323.15, and 343.15 K under 0.1 MPa. The separation performance was characterized by the separation factor and distribution coefficient. The results showed that sulfolane was a suitable extractant compared to DMSO. The reliability of the measured phase equilibrium data was evaluated by the Hand and Othmer–Tobias equations. The UNIQUAC and NRTL models were applied to fit the tie-line data of the investigated mixtures with the AARD and rmsd lower than 0.01. The intermolecular interaction was explored by the σ-profile analysis to compare the separation performance of sulfolane and DMSO.
研究领域:
化学工程
·
分离科学
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石油加工
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）