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Abstract ：
The design of highly stable and active bifunctional catalysts for electrolytic water remains a significant challenge. In this study, self-supported CoP/CNT/Ni2P bifunctional catalysts with three-phase heterojunction nano- structures were constructed by a multi-step electrodeposition and phosphorylation strategy. X-ray diffraction analysis and transmission electron microscope showed that CoP/CNT/Ni2P was a three-phase heterojunction nanostructure, and scanning electron microscope results of CoP/CNT/Ni2P suggested the successful introduction of carbon nanotube (CNT). The X-ray photoelectron spectroscopy results indicate a shift in the elemental binding energy in CoP/CNT/Ni2P, which is believed to contribute to the electrocatalytic reaction. The incorporation of CNT enhances charge transfer within the multiphase catalyst and maximizes the exposure of catalytically active sites, achieving an increase in catalyst performance. As anticipated, the CoP/CNT/Ni2P catalyst displays high catalytic activity for both the hydrogen evolution reaction (61 mV at 10 mA cm_ 2 ) and the oxygen evolution reaction (342 mV at 100 mA cm_ 2 ), in addition to exhibiting long-term stability at a current density of 10 mA cm_ 2 over 40 h. The electrolyzer comprising CoP/CNT/Ni2P(+,_) necessitates a modest operating voltage of 1.52 V to attain 10 mA cm_ 2 during alkaline water splitting, thereby outperforming the commercial catalyst Pt/C|| IrO2 and earlier reports. This study provides guidance for the development of ultra-high activity and durability catalysts for water splitting.
Keyword ：
Bifunctional electrocatalysts Bifunctional electrocatalysts CNT CNT Hydrogen evolution reaction Hydrogen evolution reaction Overall water splitting Overall water splitting
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| GB/T 7714 | Yu, Guo , Zhao, Jiaxiang , Hou, Songjia et al. Mutual promotion of CoP/CNT/Ni2P by heterojunction structural design and intrinsic activity coupling for water splitting [J]. | FUEL , 2025 , 382 . |
| MLA | Yu, Guo et al. "Mutual promotion of CoP/CNT/Ni2P by heterojunction structural design and intrinsic activity coupling for water splitting" . | FUEL 382 (2025) . |
| APA | Yu, Guo , Zhao, Jiaxiang , Hou, Songjia , Han, Haoyang , Zhou, Qing , Yan, Zuoyi et al. Mutual promotion of CoP/CNT/Ni2P by heterojunction structural design and intrinsic activity coupling for water splitting . | FUEL , 2025 , 382 . |
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In the burgeoning sucralose (TGS) production, the separation bottleneck has hindered its further technology upgrading. In this work, the crystal structural of sucrose-6-acetate chlorination product 4,1 ',6 '-trichlorosucrose-6- acetate hydrate (TSA-6.2H2O) from multi-step recrystallization has been determined, thus the bad separation efficiency of the chlorination process was assigned to the easy incorporation of by-products into the cavities or local defects of the respirable TSA-6.2H2O network. Based on this mechanism, the second cheap organic solvents have been pre-embedded into TSA-6.2H2O to generate stable ternary solvates, i. e. TSA-6.H2Osecond solvent (second solvent = DMF (N,N'-dimethylformamide), DMAc (N, N'-dimethylacetamide), and NMP (N-methyl-2pyrrolidone)). Their cellular-type compacted arrangements were constructed from strong hydrogen bonding interactions between H2O.second solvent guests and TSA-6 networks. Consequently, the free space or local defects for the encapsulation of impurities could be inhibited completely. Upon the optimization of the crystallized process (H2O: NMP = 7: 3, solvent: TSA-6 = 12: 1, operating temperature: 288.2 K), high TSA-6 purity (99.74 % wt) and low sum of alpha x (0.023) can be achieved. Furthermore, under the guidance of ternary phase diagrams (TPD), the second solvents could be facilely removed by modulating the H2O/second solvent ratio (TSA-6 purity: 99.91 % wt in 0.5 h). In all, the clarification on the obscure mechanism and the strategy of pre-embedding second solvents have broken the separation bottleneck in TGS production, which can also be applied in other relative glycosyl halides industries.
Keyword ：
1 ' 1 ' 6 ' -trichlorosucrose-6-acetate 6 ' -trichlorosucrose-6-acetate Hydrogen bond framework Hydrogen bond framework Selective separation by solvation-induced Selective separation by solvation-induced Separation mechanism Separation mechanism Ternary phase diagrams Ternary phase diagrams
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| GB/T 7714 | Chen, Xiaoping , Lei, Jiayan , Lv, Zhoulin et al. Breaking separation bottleneck in sucralose production: Clarifying the obscure mechanism and pre-embedding second solvents for highly selective separation of chlorinated product [J]. | CHEMICAL ENGINEERING JOURNAL , 2025 , 504 . |
| MLA | Chen, Xiaoping et al. "Breaking separation bottleneck in sucralose production: Clarifying the obscure mechanism and pre-embedding second solvents for highly selective separation of chlorinated product" . | CHEMICAL ENGINEERING JOURNAL 504 (2025) . |
| APA | Chen, Xiaoping , Lei, Jiayan , Lv, Zhoulin , Chen, Zi'ang , Lin, Shitong , Guo, Zhenming et al. Breaking separation bottleneck in sucralose production: Clarifying the obscure mechanism and pre-embedding second solvents for highly selective separation of chlorinated product . | CHEMICAL ENGINEERING JOURNAL , 2025 , 504 . |
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Drying process is inevitable for torrefaction of nature biomass which contains considerable moisture. Drying process would retard the temperature building of biomass during superheated steam (SHS) torrefaction and hence affect the torrefaction process as well as change the properties of products. Feedstocks with different moisture contents were torrefied to develop a drying model to describe the SHS drying process and predicate the temperature of feedstock. Torrefied biomass was analyzed to get its physicochemical properties, pyrolysis behaviors, and combustion performance. It was found that torrefaction would occur during the drying process. The drying process can be roughly divided into three stages: the rapid cooling stage, the rapid heating stage, and the stable heating stage. The rapid cooling stage and rapid heating stage are dominated by drying processes, while the stable heating stage is usually accompanied by a severe torrefaction process. Wet feedstock need longer residence time to achieve equivalent physicochemical properties and pyrolysis behaviors as that of dry feedstock. The HHV of dry sample could be increased by 40.8 %, and that of wet sample also could be increased by 34.77%. However, the combustion behaviors of the products have changed after the thermal treatment. It is found that ignition and burnout temperatures of SHS torrefied biomass were greatly affected by the initial moisture content in feedstock.
Keyword ：
Combustion behaviors Combustion behaviors Drying process modeling Drying process modeling Pyrolysis behaviors Pyrolysis behaviors Superheated steam drying Superheated steam drying Superheated steam torrefaction Superheated steam torrefaction
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| GB/T 7714 | Yan, Zuoyi , Han, Peilin , Li, Huan et al. Superheated steam drying and torrefaction of wet biomass: The effect on products characteristics [J]. | FUEL , 2025 , 388 . |
| MLA | Yan, Zuoyi et al. "Superheated steam drying and torrefaction of wet biomass: The effect on products characteristics" . | FUEL 388 (2025) . |
| APA | Yan, Zuoyi , Han, Peilin , Li, Huan , Zheng, Huidong , Zhang, Dongdong . Superheated steam drying and torrefaction of wet biomass: The effect on products characteristics . | FUEL , 2025 , 388 . |
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d-Allulose, a C-3 epimer of d-fructose, has great market potential in food, healthcare, and medicine due to its excellent biochemical and physiological properties. Microbial fermentation for d-allulose production is being developed, which contributes to cost savings and environmental protection. A novel metabolic pathway for the biosynthesis of d-allulose from a d-xylose-methanol mixture has shown potential for industrial application. In this study, an artificial antisense RNA (asRNA) was introduced into engineered Escherichia coli to diminish the flow of pentose phosphate (PP) pathway, while the UDP-glucose-4-epimerase (GalE) was knocked out to prevent the synthesis of byproducts. As a result, the d-allulose yield on d-xylose was increased by 35.1%. Then, we designed a d-xylose-sensitive translation control system to regulate the expression of the formaldehyde detoxification operon (FrmRAB), achieving self-inductive detoxification by cells. Finally, fed-batch fermentation was carried out to improve the productivity of the cell factory. The d-allulose titer reached 98.6 mM, with a yield of 0.615 mM/mM on d-xylose and a productivity of 0.969 mM/h. © 2024 American Chemical Society.
Keyword ：
d-allulose d-allulose Escherichia coli Escherichia coli fermentation fermentation metabolic engineering metabolic engineering
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| GB/T 7714 | Guo, Q. , Zheng, L.-J. , Zheng, S.-H. et al. Enhanced Biosynthesis of d-Allulose from a d-Xylose-Methanol Mixture and Its Self-Inductive Detoxification by Using Antisense RNAs in Escherichia coli [J]. | Journal of Agricultural and Food Chemistry , 2024 , 72 (26) : 14821-14829 . |
| MLA | Guo, Q. et al. "Enhanced Biosynthesis of d-Allulose from a d-Xylose-Methanol Mixture and Its Self-Inductive Detoxification by Using Antisense RNAs in Escherichia coli" . | Journal of Agricultural and Food Chemistry 72 . 26 (2024) : 14821-14829 . |
| APA | Guo, Q. , Zheng, L.-J. , Zheng, S.-H. , Zheng, H.-D. , Lin, X.-C. , Fan, L.-H. . Enhanced Biosynthesis of d-Allulose from a d-Xylose-Methanol Mixture and Its Self-Inductive Detoxification by Using Antisense RNAs in Escherichia coli . | Journal of Agricultural and Food Chemistry , 2024 , 72 (26) , 14821-14829 . |
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The Microscale Oscillatory Flow Reactor (MOFR) can achieve good plug flow and micromixing performance simultaneously at laminar net flow conditions. An unbaffled U-shaped microreactor coupled with oscillating flow technology was designed to study the macro and micromixing performance. Firstly, the influence of oscillations on the flow performance was studied to reveal the formation rule of vortex. The simulation results showed that the continuous formation and destruction of periodic vortexes occurred in the microreactor with oscillation. With the increase of oscillation intensity, the vortex size in the radial direction first gradually increased and then becomes stable, and gradually moved axially, resulting in axial diffusion. Secondly, the effect of oscillation on the macromixing and micromixing performance were investigated. The results showed that the coupling oscillation could greatly improve the macromixing and micromixing performance. The macromixing and micromixing performance were promoted simultaneously at lower oscillation intensity and then tended to be flat due to the axial diffusion at high oscillation intensity. When φ>6.05, the minimum micromixing time and the maximum number of tanks can be achieved at the same time. At a velocity ratio of about 23, FoM reached a maximum of about 3.5. © 2024
Keyword ：
Computational fluid dynamics Computational fluid dynamics Diffusion Diffusion Laminar flow Laminar flow Oscillating flow Oscillating flow Vortex flow Vortex flow
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| GB/T 7714 | Yu, Liping , Zheng, Meiqin , Wang, Jiawei et al. Enhanced mixing characteristics of unbaffled U-shaped microreactor coupled oscillatory flow [J]. | Chemical Engineering and Processing - Process Intensification , 2024 , 205 . |
| MLA | Yu, Liping et al. "Enhanced mixing characteristics of unbaffled U-shaped microreactor coupled oscillatory flow" . | Chemical Engineering and Processing - Process Intensification 205 (2024) . |
| APA | Yu, Liping , Zheng, Meiqin , Wang, Jiawei , Yan, Zuoyi , Yao, Wei , Li, Haohong et al. Enhanced mixing characteristics of unbaffled U-shaped microreactor coupled oscillatory flow . | Chemical Engineering and Processing - Process Intensification , 2024 , 205 . |
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D-allulose, a naturally occurring monosaccharide, is present in small quantities in nature. It is considered a valuable low-calorie sweetener due to its low absorption in the digestive tract and zero energy for growth. Most of the recent efforts to produce D-allulose have focused on in vitro enzyme catalysis. However, microbial fermentation is emerging as a promising alternative that offers the advantage of combining enzyme manufacturing and product synthesis within a single bioreactor. Here, a novel approach was proposed for the efficient biosynthesis of D-allulose from glycerol using metabolically engineered Escherichia coli. FbaA, Fbp, AlsE, and A6PP were used to construct the D-allulose synthesis pathway. Subsequently, PfkA, PfkB, and Pgi were disrupted to block the entry of the intermediate fructose-6-phosphate (F6P) into the Embden−Meyerhof−Parnas (EMP) and pentose phosphate (PP) pathways. Additionally, GalE and FryA were inactivated to reduce D-allulose consumption by the cells. Finally, a fed-batch fermentation process was implemented to optimize the performance of the cell factory. As a result, the titer of D-allulose reached 7.02 g/L with a maximum yield of 0.287 g/g. © 2024 Elsevier B.V.
Keyword ：
D-allulose D-allulose Escherichia coli Escherichia coli Fermentation Fermentation Metabolic engineering Metabolic engineering
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| GB/T 7714 | Guo, Q. , Dong, Z.-X. , Luo, X. et al. Engineering Escherichia coli for D-allulose biosynthesis from glycerol [J]. | Journal of Biotechnology , 2024 , 394 : 103-111 . |
| MLA | Guo, Q. et al. "Engineering Escherichia coli for D-allulose biosynthesis from glycerol" . | Journal of Biotechnology 394 (2024) : 103-111 . |
| APA | Guo, Q. , Dong, Z.-X. , Luo, X. , Zheng, L.-J. , Fan, L.-H. , Zheng, H.-D. . Engineering Escherichia coli for D-allulose biosynthesis from glycerol . | Journal of Biotechnology , 2024 , 394 , 103-111 . |
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制备Pd负载在氮掺杂碳纳米管(NCNTs)载体上的Pd/NCNTs催化剂，并将其用于间二硝基苯催化加氢生成间苯二胺的反应。研究NCNTs的不同制备方法对Pd/NCNTs催化剂催化性能的影响。结果表明，Pd纳米颗粒可以更均匀地分散在NCNTs载体上，可与载体形成强相互作用。当NCNTs中的氮含量越高且吡啶氮占比较高时，Pd/NCNTs催化剂的加氢活性越高。在间二硝基苯催化加氢反应中，Pd/NCNTs催化剂相较于Pd/CNTs催化剂的加氢活性提高了69%。
Keyword ：
催化剂工程 催化剂工程 吡啶氮 吡啶氮 氮掺杂 氮掺杂 硝基加氢 硝基加氢 钯催化剂 钯催化剂 间二硝基苯 间二硝基苯
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| GB/T 7714 | 刘加帅 , 王楠 , 郑辉东 et al. 氮掺杂碳纳米管负载钯基催化剂在间二硝基苯加氢中的应用 [J]. | 工业催化 , 2024 , 32 (08) : 24-30 . |
| MLA | 刘加帅 et al. "氮掺杂碳纳米管负载钯基催化剂在间二硝基苯加氢中的应用" . | 工业催化 32 . 08 (2024) : 24-30 . |
| APA | 刘加帅 , 王楠 , 郑辉东 , 范立海 , 吴丹 . 氮掺杂碳纳米管负载钯基催化剂在间二硝基苯加氢中的应用 . | 工业催化 , 2024 , 32 (08) , 24-30 . |
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间氨基苯磺酸钠是一种重要的化工中间体,可由多种方法制备得到,催化加氢法是目前主要使用的方法,但工业化报道较少,这是由于在间硝基苯磺酸钠加氢合成间氨基苯磺酸钠的液相反应中催化剂存在失活现象,难以多次套用,工业化成本高.使用自制Pd/C催化剂进行间硝基苯磺酸钠的液相加氢反应,采用液相色谱-四级杆飞行时间串联质谱(LC-QTOF-MS)、X射线衍射谱(XRD)、X射线光电子能谱(XPS)、BET表面分析等方法对Pd/C催化剂的失活原因进行探究,确定催化剂的失活原因.Pd/C催化剂的失活是由于在硝基选择性加氢过程中,原料间硝基苯磺酸钠转化为偶氮化合物或氧化偶氮化合物,由于这些中间体的吸附性较强,易堵塞活性炭载体的孔道,造成催化剂比表面积减少,导致催化剂暂时性的中毒失活,而并非是加氢还原了原料中磺酸基团生成硫化钯而导致的催化剂永久性失活.
Keyword ：
Pd/C催化剂 Pd/C催化剂 催化剂失活 催化剂失活 催化加氢 催化加氢 催化化学 催化化学 间硝基苯磺酸钠 间硝基苯磺酸钠
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| GB/T 7714 | 林知滨 , 郑辉东 , 范立海 et al. Pd/C催化剂在间硝基苯磺酸钠加氢反应中的应用 [J]. | 工业催化 , 2024 , 32 (10) : 56-62 . |
| MLA | 林知滨 et al. "Pd/C催化剂在间硝基苯磺酸钠加氢反应中的应用" . | 工业催化 32 . 10 (2024) : 56-62 . |
| APA | 林知滨 , 郑辉东 , 范立海 , 吴丹 . Pd/C催化剂在间硝基苯磺酸钠加氢反应中的应用 . | 工业催化 , 2024 , 32 (10) , 56-62 . |
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This study investigates the turbulent two-phase dispersion of toluene-water in micro-impinging jet (MIJ) mixers using both experimental and numerical methods. We employ computational fluid dynamics combined with the population balance model (CFD-PBM) to predict the mean droplet size (d32) and droplet size distribution (DSD). The numerical predictions align well with the experimental results. The liquid-liquid dispersion in the MIJ mixer is a two-step process, each step governed by the velocity ratio (r) and Reynolds number (Rej), respectively. By increasing the volume flow rate (Q) and r, or by reducing the diameter of the outlet orifice of mixing chamber (Do), the dispersion process can be intensified. This leads to the production of smaller droplets with a narrow DSD within a millisecond timeframe. Additionally, we propose a correlation for d32 that accurately describes the two-step dispersion process of the mixer, providing a reliable guide for the design and optimization of liquid-liquid systems.
Keyword ：
CFD CFD liquid-liquid dispersion liquid-liquid dispersion micro-impinging jet mixer micro-impinging jet mixer population balance model (PBM) population balance model (PBM) process intensification process intensification
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| GB/T 7714 | Wu, Bin , Chen, Lin , Fan, Yanchun et al. Experimental study and numerical simulation of liquid-liquid dispersions in micro-impinging jet mixers [J]. | AICHE JOURNAL , 2024 , 71 (4) . |
| MLA | Wu, Bin et al. "Experimental study and numerical simulation of liquid-liquid dispersions in micro-impinging jet mixers" . | AICHE JOURNAL 71 . 4 (2024) . |
| APA | Wu, Bin , Chen, Lin , Fan, Yanchun , Zheng, Huidong , Zhang, Fuweng . Experimental study and numerical simulation of liquid-liquid dispersions in micro-impinging jet mixers . | AICHE JOURNAL , 2024 , 71 (4) . |
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For the process of CO2 absorption, existing gas-liquid contactors suffer from low mass transfer performance and low gas-liquid ratios. In this study, a rotating spiral contactor was developed to overcome these drawbacks and a novel rate-based model was developed to predict the CO2 absorption performance. The effective interfacial area (a(e)), overall volumetric mass transfer coefficient (K(G)a(e)) and CO2 absorption efficiency (eta) were investigated. The results showed that the a(e) was 913-1125 m(2)/m(3) superior to the conventional contactor. In the range of gas-liquid ratio of 200-1800, the K(G)a(e) and eta were 1.4-10.1 kmol.m(-3).h(-1).kPa(-1) and 40.5-99.6 %, respectively. The rate-based model predicted the K(G)a(e) and eta with the AARD of 6.71 % and 1.90 %, respectively. Also, it has better robustness even in highly nonlinear temperature and composition distributions. This study provides a potential contactor and a new modeling tool for CO2 capture and other gas-liquid separation.
Keyword ：
CO(2 )absorption CO(2 )absorption Effective interfacial area Effective interfacial area High gas-liquid ratio High gas-liquid ratio Mass transfer coefficient Mass transfer coefficient Rate-based model Rate-based model Spiral channel Spiral channel
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| GB/T 7714 | Chen, Tianming , Song, Jiabao , Zheng, Chenghui et al. Novel rate-based modeling and mass transfer performance of CO2 absorption in rotating spiral contactor [J]. | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER , 2024 , 235 . |
| MLA | Chen, Tianming et al. "Novel rate-based modeling and mass transfer performance of CO2 absorption in rotating spiral contactor" . | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 235 (2024) . |
| APA | Chen, Tianming , Song, Jiabao , Zheng, Chenghui , Zheng, Meiqin , Yan, Zhongyi , Yan, Zuoyi et al. Novel rate-based modeling and mass transfer performance of CO2 absorption in rotating spiral contactor . | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER , 2024 , 235 . |
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