Article
Chemistry, Inorganic & Nuclear
Timothy Steenhaut, Luca Fusaro, Koen Robeyns, Seraphin Lacour, Xiao Li, Julien G. Mahy, Veronique Louppe, Nicolas Gregoire, Gabriella Barozzino-Consiglio, Jean-Francois Statsyns, Carmela Aprile, Yaroslav Filinchuk, Sophie Hermans
Summary: The metal-organic frameworks (MOFs) containing aluminum exhibit hierarchized porosity and structural integrity after decoration with ethylenediamine (EN). The grafted ethylenediamine's amino groups can be further functionalized and increase affinity for CO2. Aluminum MOFs show a unique carbon dioxide sorption mechanism at high pressures, differentiating them from iron and chromium counterparts.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Xiao-Li Yang, Yang-Tian Yan, Wen-Juan Wang, Ze-Ze Hao, Wen-Yan Zhang, Wenhuan Huang, Yao-Yu Wang
Summary: A new 3D Co-MOF with high BET surface area and good water stability was successfully synthesized using two ligands. The MOF exhibits selective adsorption of Congo red and high CO2 adsorption capacity, as well as excellent CO2 chemical conversion.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Physical
Tran-Van Phuc, Jin-Suk Chung, Seung-Hyun Hur
Summary: Pd, Cu, and Zn trimetallic metal-organic framework electrocatalysts (PCZs) were synthesized using a simple solvothermal synthesis based on benzene-1,3,5-tricarboxylic acid. The as-synthesized PCZ catalysts exhibited high faradaic efficiency towards CO, with a high current density, low onset potential, and excellent long-term stability during the electrocatalytic reduction of CO2.
Article
Chemistry, Multidisciplinary
Maohuai Wang, Lingyan Kong, Xiaoqing Lu, Chi-Man Lawrence Wu
Summary: This study evaluated three metal-organic frameworks as charge-modulated CO2 capture materials, with Co-HAB and Ni-HAB identified as better options with less structure deformation and low energy consumption. The results showed that injecting charges enhanced the interactions between CO2 and MOFs, leading to higher CO2 adsorption energies and capacities. The findings highlight Co-HAB and Ni-HAB as promising materials for controllable CO2 capture and separation with high selectivity and low energy consumption.
Article
Materials Science, Multidisciplinary
Tran Van Phuc, Sung Gu Kang, Jin Suk Chung, Seung Hyun Hur
Summary: Cu-MOF74 exhibited superior electrocatalytic properties compared to Zn-MOF74, with larger surface area, higher CO selectivity, and lower overpotential. Computational simulation showed that the lower activation energy of Cu-MOF74 in the rate-determining step resulted in its better electrocatalytic properties.
MATERIALS RESEARCH BULLETIN
(2021)
Article
Chemistry, Physical
Min Chen, Lei Wang
Summary: A new microporous dysprosium-based metal-organic framework with high CO2 adsorption capacity and selectivity was synthesized. The framework showed a CO2 uptake of 55.9 cm3 g-1 at 293 K and 1 atm, while the uptake for CH4, Ar, and N2 was lower than 13.6 cm3 g-1. The calculated IAST selectivities of CO2/CH4, CO2/Ar, and CO2/N2 were 5.1, 26.7, and 24.3, respectively, indicating the potential of the framework for selective CO2 capture at ambient temperature.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Chemistry, Inorganic & Nuclear
Hongtai Chen, Tao Zhang, Shurong Liu, Hongxiao Lv, Liming Fan, Xiutang Zhang
Summary: This study successfully synthesized a unique nanocaged organic framework NUC-54 by functionalizing selected linkers with strong Lewis basic fluorine groups. The activated NUC-54a exhibited excellent catalytic performance and high recyclability, making it a promising heterogeneous catalyst for various reactions.
INORGANIC CHEMISTRY
(2022)
Article
Engineering, Environmental
Sanjit Gaikwad, Yeonhee Kim, Ranjit Gaikwad, Sangil Han
Summary: A new method of modifying MOF-177 with amines was successfully used to enhance CO2 adsorption capacity at low pressure. TEPA-modified MOF-177 showed the largest improvement in CO2 adsorption capacity among the three amines studied.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Nanoscience & Nanotechnology
Lei Zhang, Ziyu He, Yupeng Liu, Jianjun You, Lang Lin, Jihui Jia, Song Chen, Nengbin Hua, Li-An Ma, Xiaoyun Ye, Yanrong Liu, Cheng-Xia Chen, Qianting Wang
Summary: This study reports a stable squarate-cobalt metal-organic framework (MOF), FJUT-3, with an ultra-small 1D square channel decorated with -OH groups, for CO2/N2 separation. FJUT-3 shows excellent stability under harsh chemical conditions, low-cost property for scale-up synthesis, and remarkable CO2 separation performance under various humid and temperature conditions, making it suitable for industrial CO2 capture and removal.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Chemical
Xiao-bin Xu, Yisi Yang, Zhen Yuan, Fang Zheng, Fahui Xiang, Zongbi Bao, Zhangjing Zhang, Shengchang Xiang
Summary: High-purity acetylene (C2H2) is difficult to obtain from methane (CH4) and carbon dioxide (CO2) due to their similar molecular structure and physical properties. Metal-organic frameworks (MOFs) have been used as cost- and energy-efficient materials to separate acetylene mixtures. The highly stable MOF, FJU-83, showed excellent C2H2/CH4 and C2H2/CO2 selectivities, indicating its potential for efficient acetylene separation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Tao Yang, Guoliang Liu, Chen Gu, Hui Wen, Ze-Jiu Diao, Si-Yi Liu, Shi-Chao Qi, Mingrui Zuo, Lifeng Ding, Xiao-Qin Liu, Lin-Bing Sun
Summary: In this study, a photo-responsive adsorbent (Azo-U) consisting of azobenzene-modified UiO-67 was successfully constructed for controllable CO2 capture. It exhibited reversible photo-responsive properties, high stability, and a CO2 regulation efficiency of up to 25.5%. This research provides new insights for the design and fabrication of target-specific photo-responsive adsorbents.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Yucheng Song, Xin Ma, Huanhuan Tan, Zhong Liu, Chuntai Liu, Changyu Shen, Peipei Yang, Songwei Li
Summary: In this study, a new type of PAM/SA/H-ZIF hydrogel was synthesized by decorating hollow Zn/Co zeolitic imidazolate framework (H-ZIF) on polyacrylamide/sodium alginate (PAM/SA) hydrogel. The PAM/SA/H-ZIF hydrogel showed excellent adsorption properties for uranium(VI) (U(VI)), with an extraction amount of 171.14 mg.g(-1) at C-0 = 99.52 mg.L-1 and pH = 5.0. The adsorption process followed the Langmuir isotherm model and pseudo-second-order rate equation. The PAM/SA/H-ZIF hydrogel also exhibited good recyclability and stability.
Article
Nanoscience & Nanotechnology
Shi Tu, Liang Yu, Jiaqi Liu, Danxia Lin, Ying Wu, Zhong Li, Hao Wang, Qibin Xia
Summary: CO2 is the main greenhouse gas, and capturing it from flue gas under humid conditions is challenging but important for carbon neutrality. In this study, a highly efficient CO2 capture performance was achieved by integrating specific functionalities such as unsaturated metal sites and amide functional groups. The MOF Fe-dbai exhibited high CO2 adsorption capacity, CO2/N-2 selectivity, and a preserved working capacity under humid conditions. Molecular simulation revealed that the amide CO- group played a crucial role in improving the interaction between Fe UMS and CO2.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Environmental Sciences
Muhammad Babar, Muhammad Mubashir, Ahmad Mukhtar, Sidra Saqib, Sami Ullah, Mohamad Azmi Bustam, Pau Loke Show
Summary: A sustainable NH2-MIL-101(Al) with highly porous surface and excellent thermal stability was synthesized and characterized; The CO2 adsorption process of NH2-MIL-101(Al) at low temperatures is thermodynamically controlled with favorable adsorption sites; NH2-MIL-101(Al) shows significantly better CO2 capture performance compared to glass packing.
ENVIRONMENTAL POLLUTION
(2021)
Article
Engineering, Chemical
Yanjiao Chang, Lu Wang, Zefeng Jiang, Ruo Zhang, Hejin Zhu, Dongen Zhang, Jing Zhu, Xiao Kong, Hongliang Huang
Summary: In this study, a zwitterionic metal-organic framework (MOF) material with both positive and negative charges was developed for enhanced dispersion of ionic liquids (ILs) and CO2 capture. The zwitterionic MOF demonstrated higher CO2 affinity and selectivity compared to the single-group modified counterparts.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Yun Li, Jinlong Zhu, Songbai Han, Baifa Zhang, Hui Tang, Bao Yuan, Pengfei Wang, Wancheng Bao, Xiaomeng Wang, Yusheng Zhao
Summary: The nucleation mechanism of CH4/CO2 hydrates in kaolinite particles with different gas concentrations was studied using molecular dynamics simulations. The results showed that the interaction between adsorbed CH4/CO2 molecules and the siloxane surface played a crucial role in hydrate nucleation, while the hydroxyl surface had a minor contribution. These findings provide molecular insight into CH4/CO2 gas separation and CO2 sequestration.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Chemical
Sanya Du, Xiaomin Han, Wenjiu Cai, Jinlong Zhu, Xiaobai Ma, Songbai Han, Dongfeng Chen, Yusheng Zhao, Hui Li, Hailong Lu, Xiaohui Yu
Summary: It is acknowledged that the addition of a small amount of propane to methane can greatly affect both the thermodynamics and structural properties of gas hydrates, although the exact mechanism is not well understood. In this study, structure-II (sII) hydrate was synthesized using a mixture of methane and propane, and it was observed that large cages were occupied by multiple gases. First-principles calculations and molecular dynamics simulations were performed to investigate the molecular mechanism of sII methane-propane hydrate formation, revealing that propane inhibits the formation of structure-I (sI) hydrates but promotes sII hydrate formation. These findings contribute to a better understanding of the accumulation mechanism of natural gas hydrates and have implications for optimizing gas storage and transportation in hydrate form.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Applied
Lei Gao, Manrong Song, Ruo Zhao, Songbai Han, Jinlong Zhu, Wei Xia, Juncao Bian, Liping Wang, Song Gao, Yonggang Wang, Ruqiang Zou, Yusheng Zhao
Summary: Partial fluorination of an antiperovskite chloride improves the ionic conductivity and electrochemical stability of solid-state electrolytes, leading to enhanced performance of all-solid-state lithium batteries.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Physical
Xinyu Zhang, Denys Butenko, Lei Gao, Xinyan Ye, Bolong Hong, Songbai Han, Wei Xia, Shaofei Wang, Yang Sun, Yusheng Zhao, Jinlong Zhu
Summary: This study investigates the ionic transport mechanisms in two solid electrolytes, LiTi2(PO4)(3) and Li3Ti2(PO4)(3), using in situ neutron diffraction and theoretical calculations. It is found that Li ions exhibit different transport modes in these electrolytes due to their distinct configurations. Theoretical calculations suggest that the diffusion bottleneck size in Li3Ti2(PO4)(3) enables lower hopping energy compared to LiTi2(PO4)(3). These findings shed light on the structure-conductivity relationships and have implications for the design of solid electrolytes for next-generation batteries.
CHEMISTRY OF MATERIALS
(2023)
Review
Chemistry, Inorganic & Nuclear
Lei Gao, Jiangyang Pan, Longbang Di, Jinlong Zhu, Liping Wang, Song Gao, Ruqiang Zou, Le Kang, Songbai Han, Yusheng Zhao
Summary: This review article summarizes the progress of neutron diffraction in analyzing the structure and revealing the ionic transport mechanisms of antiperovskite solid-state electrolytes (SSEs). It introduces the structure-function relationships involved in ionic transport pathways, defect chemistry, anion disorder, and lattice dynamics. Additionally, possible future directions for the application of neutron diffraction in antiperovskite SSEs are suggested.
CHINESE JOURNAL OF STRUCTURAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Wen Tang, Wei Xia, Fiaz Hussain, Jinlong Zhu, Songbai Han, Wen Yin, Pengcheng Yu, Jiuwei Lei, Denys S. Butenko, Liping Wang, Yusheng Zhao
Summary: Halide-type solid electrolytes (SEs) show promise as Li+ conductors for all-solid-state lithium batteries (ASSLBs), but poor compatibility with metal anode remains an issue. In this study, a dual-halogen trigonal SE, Li2ZrCl6-xFx, is developed with high ionic conductivity and moisture stability. ASSLBs with this SE and LiCoO2 cathode materials exhibit excellent electrochemical performance, attributed to the formation of an in-situ protective layer between the SE and Li alloy. The development of mixed halogen-based SEs provides a cost-effective strategy to improve the stability of halide SEs and promote the application of high-voltage ASSLBs.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Yifan Xu, Ruo Zhao, Lei Gao, Tingsong Gao, Wenjuan Wang, Juncao Bian, Songbai Han, Jinlong Zhu, Qiang Xu, Yusheng Zhao
Summary: In this work, a three-dimensional fibrous membrane with ion selectivity was used as a functional filler for the in situ formed solid polymer electrolyte (SPE). The obtained SPE has high stability due to its high polymerization degree and exhibits both high polymerization degree and ionic conductivity, enabling uniform Li deposition and long-term cycling performance.
Article
Physics, Condensed Matter
Guangyang Dai, Qunfei Zheng, Zhanyang Hao, Cheng Jin, Wenjing Cheng, Xiaodong Yao, Zhipeng Yan, Jun Han, Ying Liu, Songbai Han, Jinlong Zhu
Summary: High pressure is a effective and clean method for tuning lattice structures and electronic states. In this study, the crystal growth and pressure effect on the three-dimensional Dirac semimetal BaAgBi were experimentally studied. Within the pressure range of 51.8 GPa, BaAgBi remained metallic and no superconductivity was observed down to 1.6 K. The resistance is primarily influenced by electron-phonon and s-d electron-electron scattering. High-pressure synchrotron X-ray diffraction experiments revealed the presence of two high-pressure phases below 50 GPa, with crystal structures proposed as Pnma and Pca21, respectively. The pressure dependence of unit cell volumes and bulk modulus for all three phases were obtained by refining the high-pressure X-ray data.
PHYSICA B-CONDENSED MATTER
(2023)
Article
Chemistry, Physical
Hui Tang, Yun Li, Wancheng Bao, Pengfei Wang, Xiaomeng Wang, Qinqin Su, Yusheng Zhao, Jinlong Zhu, Songbai Han
Summary: This study investigated the effects of clay minerals and amino acids on methane hydrate formation through kinetic experiments and molecular dynamics simulations. The results showed that montmorillonite and kaolinite had different effects on MH formation, and the addition of glycine also influenced MH nucleation. The simulations demonstrated that the electrostatic interaction between Ca2+ and glycine weakened the inhibitory effect of Ca2+ on MH formation, and glycine adsorbed on the clay mineral surface. These findings suggest that the interactions between clay minerals and amino acids should be considered when studying the occurrence mechanism of natural gas hydrate in marine sediments.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Hu Tang, Yong Cheng, Xiaohong Yuan, Kai Zhang, Alexander Kurnosov, Zhen Chen, Wenge Xiao, Henrik S. Jeppesen, Martin Etter, Tao Liang, Zhidan Zeng, Fei Wang, Hongzhan Fei, Lin Wang, Songbai Han, Ming-Sheng Wang, Guang Chen, Howard Sheng, Tomoo Katsura
Summary: Exceptional toughening in oxide glasses has been achieved via paracrystallization, resulting in the enhancement of crystal-like medium-range order structure. This discovery provides possibilities for the design of more resilient glass materials. The paracrystalline oxide glasses display superior toughness, surpassing any other reported bulk oxide glasses, potentially due to the excitation of multiple shear bands caused by a stress-induced inverse transformation from the paracrystalline to amorphous states, revealing plastic deformation characteristics.
Article
Multidisciplinary Sciences
Lei Gao, Xinyu Zhang, Jinlong Zhu, Songbai Han, Hao Zhang, Liping Wang, Ruo Zhao, Song Gao, Shuai Li, Yonggang Wang, Dubin Huang, Yusheng Zhao, Ruqiang Zou
Summary: The lattice manipulation method of replacing [Li2OH]+ clusters with potassium ions in antiperovskite solid-state electrolyte leads to an increase in ionic conductivity. The method stabilizes the cubic phase and causes lattice contraction, resulting in improved lithium ion transport properties. The electrolyte shows potential application prospects in all-solid-state lithium batteries.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Longbang Di, Jiangyang Pan, Lei Gao, Jinlong Zhu, Liping Wang, Xiaomeng Wang, Qinqin Su, Song Gao, Ruqiang Zou, Yusheng Zhao, Songbai Han
Summary: Solid-state electrolytes (SSEs) are critical to the advancement of cutting-edge all-solid-state batteries (ASSBs), and their ionic conductivity is influenced by the presence of amorphous and crystalline phases. This study investigates the impact of amorphization on the ionic conductivity of a binary xLi(2)S-(100-x)LiI system using mechanochemical milling synthesis. Powder X-ray diffraction (PXRD) reveals that the stoichiometry of Li2S and LiI significantly affects the amorphization of the system. Electrochemical impedance spectroscopy (EIS) analysis shows that the amorphization of the system is closely related to its ionic conductivity, primarily due to the effect of grain boundary resistance. These findings provide insights into the design of innovative amorphous SSEs.
FRONTIERS IN CHEMISTRY
(2023)
Article
Chemistry, Physical
Fiaz Hussain, Hamza Maqbool, Songbai Han, Liping Wang, Jinlong Zhu, Yusheng Zhao, Wei Xia
Summary: This study utilized density functional theory (DFT) and DFT + U calculations to investigate the structural stability and performance of Na2FeS2 in sodium-ion batteries. The results revealed the instability of Na2FeS2, but it exhibited a low diffusion barrier and high theoretical capacity. Additionally, the substitution of transition metals at the Fe sites resulted in the promising Na2MnS2 with excellent structural stability and high theoretical capacity.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Energy & Fuels
Yun Li, Shouheng Xiao, Bao Yuan, Pengfei Wang, Baifa Zhang, Qinqin Su, Xiaomeng Wang, Songbai Han, Jinlong Zhu, Yusheng Zhao
Summary: Ionic liquids have been found to inhibit the formation of solid hydrates in oil and gas pipelines both thermodynamically and kinetically, making them a new class of dual-function inhibitors. This study investigated the inhibitory ability of six ionic liquids with different functional groups on methane hydrate formation using molecular dynamics simulations. The alkyl chains in the ionic liquids strengthen the tetrahedral arrangement of water molecules, while anionic groups weaken it. The findings provide insights into the mechanisms by which ionic liquids inhibit methane hydrate formation and have potential applications in the petroleum pipeline industry.
GAS SCIENCE AND ENGINEERING
(2023)
Article
Engineering, Environmental
Pengfei Wang, Hongwei Kang, Ying Teng, Yun Li, Xiaomeng Wang, Qinqin Su, Jianbo Zhu, Songbai Han, Yusheng Zhao, Jinlong Zhu
Summary: This study investigated the CO2 capture in nanoporous silica gels with different degrees of nanoconfinement and found that nanoconfinement has a direct impact on hydrate-based CO2 capture, with adverse effects in S9 and advantageous effects in S26 and S77.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Chemical
Qing Han, Mengqing Shi, Linkai Han, Di Liu, Mingwei Tong, Yuxin Xie, Zhonghua Xiang
Summary: Developing highly efficient bifunctional oxygen electrocatalysts is crucial for zinc-air flow batteries. Metal-organic frameworks (MOFs) and covalent organic polymers (COPs) have emerged as promising alternatives due to their designable and controllable atomic-level structures. However, their catalytic performances are limited by conductivity and catalytic activity. In this study, nanosheet FeNi-MOF and iron phthalocyanine rich COP hybrid materials are assembled through the pi-pi stacking effect to create highly efficient bifunctional electrocatalysts. The resulting catalyst exhibits superior catalytic performance and stability, making it a promising candidate for zinc-air flow batteries.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Daria Grigorash, Dmytro Mihrin, Rene Wugt Larsen, Erling H. Stenby, Wei Yan
Summary: The article introduces a new approach to describe the cross-association between molecules, allowing for the simulation of weakly bound molecular complexes with different conformations in mixtures. By incorporating this approach into the equation of state, accurate predictions of vapor-liquid equilibrium and liquid-liquid equilibrium can be made. The new method is validated through experiments on alcohol and acid mixtures, with the results compared to experimental data, demonstrating its accuracy and reliability.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Mohammed Al-Sharabi, Daniel Markl, Vincenzino Vivacqua, Prince Bawuah, Natalie Maclean, Andrew P. E. York, Axel Zeitler
Summary: This study used terahertz pulsed imaging to investigate the transport process of different solvents into ceramic catalytic materials. The results showed that the heating rate of the samples influenced the water transport rate, while the viscosity of 1-octanol slowed down its transport.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Chukwunonso Anyaoku, Sati Bhattacharya, Rajarathinam Parthasarathy
Summary: This study aimed to enhance understanding of settling dynamics in viscoelastic fluids by developing a semi-empirical correlation and a dimensionless ratio, which accurately described the characteristics of settling suspensions.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Antti I. Koponen, Janika Viitala, Atsushi Tanaka, Baranivignesh Prakash, Olli-Ville Laukkanen, Ari Jasberg
Summary: This study focuses on the development of foam application chemicals for the paper and board industry. The research explores the rheology of the polyvinyl alcohol foam used in the process. Measurements were conducted to determine the foam viscosity and slip flow. The results suggest that slip flow contributes significantly to the total flow rate, and the obtained viscosity and slip models provide a solid foundation for industrial processes.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Dalei Sun, Jinghui Cai, Yating Yang, Zhiwu Liang
Summary: In this study, Fe-doped alpha-Bi2O3 catalysts with different Fe/Bi molar ratios were synthesized and utilized in the carbonylation of isobutyl amine with CO2. The results showed that Fe doping significantly enhanced the catalytic abilities of alpha-Bi2O3.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Yuan Tian, Xinxin Wang, Yanrong Liu, Wenping Hu
Summary: This paper predicts the solubility of nitrogen gas in ionic liquids (ILs) using two quantitative structure-property relationship (QSPR) models. By combining machine learning methods and ionic fragments contribution method, the accuracy and reliability of the prediction models are improved.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Liwang Wang, Wei Liu, Pan Yang, Yulong Chang, Xiaoxu Duan, Lingyu Xiao, Yaoming Hu, Jiwei Wu, Liang Ma, Hualin Wang
Summary: This study investigates the effective phase interfacial area (ae) of hydro-jet cyclones at different injection angles. The results show that a 45 degrees upward incidence angle yields the most favorable flow field characteristics for efficient mass transfer. The significant enhancement in ae of the hydro-jet cyclones offers the advantage of reducing equipment volume and cost savings.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Chuanjun Wu, Jiangzhi Chen, Jiyue Sun, I-Ming Chou, Shenghua Mei, Juezhi Lin, Lei Jiang
Summary: In this study, the solubility of H2S hydrate in water was measured using Raman spectroscopy. The results showed that the solubility increases with temperature under certain equilibrium conditions, and the solubility also depends on pressure and temperature under different equilibrium conditions. A thermodynamic model based on the van der Waals-Platteeuw theory was developed to predict the solubility, demonstrating its accuracy.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Lorenzo Brivio, Serena Meini, Mattia Sponchioni, Davide Moscatelli
Summary: This study investigates the influence of three main parameters and proposes a kinetic model to predict the optimal operating conditions for high yield of dimethyl terephthalate (DMT) in the chemical recycling process of polyethylene terephthalate (PET).
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Hongju Lin, Fanhui Liao, Yanchang Chu, Mingyu Xie, Lun Pan, Yuanyuan Wang, Lijian Leng, Donghai Xu, Le Yang, Gangfeng Ouyang
Summary: A honeycomb NiCo/C-Na catalyst with a micro-meso-macroporous structure has been fabricated and shown to have significantly higher catalytic activity for the decarboxylation of fatty acids. It also proves to be efficient in upgrading sludge HTL bio-crude, resulting in a biofuel with decreased viscosity and increased density.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Xiaoxian Li, Rui Li, Min Lin, Mingde Yang, Yulong Wu
Summary: A series of coated non-noble metal porous carbon catalysts were synthesized and applied to the aqueous-phase deoxygenation of algal bio-oil. One of the catalysts showed excellent deoxygenation selectivity and catalytic activity at 250 degrees C. The catalyst exhibited good hydrothermal stability and the reaction mechanism was proposed based on product analysis and active site analysis.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
M. V. Chudakova, M. V. Popov, P. A. Korovchenko, E. O. Pentsak, A. R. Latypova, P. B. Kurmashov, A. A. Pimenov, E. A. Tsilimbaeva, I. S. Levin, A. G. Bannov, A. V. Kleymenov
Summary: A series of catalysts with different potassium contents were prepared using solution combustion synthesis and characterized using various techniques. The results showed that the potassium content affected the phase composition and texture of the catalysts. The addition of a small amount of potassium resulted in a change in particle size distribution, leading to higher hydrogen yield. The Ni-1%K2O/Al2O3 catalyst exhibited the highest hydrogen yield at temperatures of 675 and 750 degrees Celsius.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Aliakbar Roosta, Nima Rezaei
Summary: In this study, we modified the electrolyte cubic plus association equation of state (e-CPA EoS) and integrated it with two electrical conductivity models to estimate the electrical conductivity of 11 monovalent electrolyte solutions in water. The modified e-CPA model demonstrated better performance and the hybridization with electrical conductivity models resulted in two predictive models for estimating the electrical conduction of dilute and concentrated electrolyte solutions. These predictive models showed relative average percentage deviations (AARD) of 11.15% and 13.87% over wide ranges of temperature and electrolyte concentration.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Haoren Niu, Jianzheng Wang, Qingzhu Jia, Qiang Wang, Jin Zhao, Fangyou Yan
Summary: A study developed two quantitative structure-property relationship models for the complexation performance of alpha- and beta-cyclodextrins and validated their stability and predictive ability through internal and external validation. The models showed robustness and satisfactory performance, as demonstrated by the experimental results and model validations. These models can effectively predict the binding constants between cyclodextrins and various types of molecules, providing valuable tools for cyclodextrin design.
CHEMICAL ENGINEERING SCIENCE
(2024)
