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学者姓名：郑辉东
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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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(D)-Glucaric acid is a value-added dicarboxylic acid that can be utilized in the chemical, food, and pharmaceutical industries. Due to the complex process and environmental pollution associated with the chemical production of d-glucaric acid, bioconversion for its synthesis has garnered increasing attention in recent years. In this study, a novel cell factory was developed for the efficient production of d-glucaric acid using d-xylose and methanol. Mdh, Hps, Phi, Miox, Ino1, Suhb, and Udh were first co-expressed in E. coli JM109 to construct the d-glucaric acid synthesis pathway. The deletion of FrmRAB, RpiA, PfkA, and PfkB was then performed to block or weaken the endogenous competitive pathways. Next, adaptive evolution was carried out to improve cell growth and substrate utilization. With the purpose of further increasing the product titer, the NusA tag and myo-inositol biosensor were introduced into engineered E. coli to enhance Miox expression. After medium optimization and fermentation process control, 3.0 g/L of d-glucaric acid was finally obtained in the fed-batch fermentation using modified Terrific Broth medium.
Keyword ：
d-glucaric acid d-glucaric acid Escherichia coli Escherichia coli metabolic engineering metabolic engineering microbial fermentation microbial fermentation
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| GB/T 7714 | Chen, Wei-Xiang , Zheng, Ling-Jie , Luo, Xuan et al. Metabolic Engineering and Adaptive Evolution of Escherichia coli for Enhanced Conversion of D-Xylose to D-Glucaric Acid Mediated by Methanol [J]. | BIOTECHNOLOGY AND BIOENGINEERING , 2025 , 122 (6) : 1472-1483 . |
| MLA | Chen, Wei-Xiang et al. "Metabolic Engineering and Adaptive Evolution of Escherichia coli for Enhanced Conversion of D-Xylose to D-Glucaric Acid Mediated by Methanol" . | BIOTECHNOLOGY AND BIOENGINEERING 122 . 6 (2025) : 1472-1483 . |
| APA | Chen, Wei-Xiang , Zheng, Ling-Jie , Luo, Xuan , Zheng, Shang-He , Zheng, Hui-Dong , Fan, Li-Hai et al. Metabolic Engineering and Adaptive Evolution of Escherichia coli for Enhanced Conversion of D-Xylose to D-Glucaric Acid Mediated by Methanol . | BIOTECHNOLOGY AND BIOENGINEERING , 2025 , 122 (6) , 1472-1483 . |
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A multi-level memristor, implemented with inexpensive precursors and well-defined mechanisms, will be significant for the development of high-density memory in the coming big data era. Sulfur, a cheap element extracted from petroleum and natural gas, holds fascinating potential for use in information memory. In this work, a three-component hybrid, [Cu(Phen)2I]2Cu2I4S8 (Phen = 1,10-phenanthroline), was synthesized. In this structure, strong pi-pi stacking interactions among Phen ligands, cuprophilic interactions in (Cu2I4)2- anions, and C-H & ctdot;I/S hydrogen bonds contributed to the formation of a quasi-3D network. A FTO/hybrid/Ag memristor was fabricated, exhibiting ternary memory performance with a high ON2/ON1/OFF current ratio (104.50/101.47/1) and a ternary yield of 68%. The memristor could operate at a high temperature of 185 degrees C. Based on the structural characteristics of the hybrid, FIB-SEM measurements on the Ag/hybrid/Ag model device, double logarithm analysis of the I-V curve, memory performance of the three individual precursors, and external voltage-dependent PXRD, its ternary resistive switching performance could be explained as follows: upon continuous external voltages, the transition OFF -> ON1 was driven by enhanced pi-pi stacking interactions among the Phen ligands, and the current jump ON1 -> ON2 resulted from the formation of a conductive S8/(Cu2I4)2- layer bearing cuprophilic interactions via S8 relaxation. This works extends the strategy of sulfur relaxation in multi-level memories from coordinated polysulfides to uncoordinated ones. The use of inexpensive precursors, combined with the distinct structure-property correlation, provides a promising avenue for implementing novel high-density memristors.
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| GB/T 7714 | Li, Huifang , Gao, Yiqun , Lin, Xi et al. Ternary resistive switching memory of copper-organic complex/iodocuprate/sulfur hybrid enabled by π-π interactions and S8 relaxation [J]. | CRYSTENGCOMM , 2025 , 27 (10) : 1439-1445 . |
| MLA | Li, Huifang et al. "Ternary resistive switching memory of copper-organic complex/iodocuprate/sulfur hybrid enabled by π-π interactions and S8 relaxation" . | CRYSTENGCOMM 27 . 10 (2025) : 1439-1445 . |
| APA | Li, Huifang , Gao, Yiqun , Lin, Xi , Li, Ke , Lin, Xiaoli , Li, Haohong et al. Ternary resistive switching memory of copper-organic complex/iodocuprate/sulfur hybrid enabled by π-π interactions and S8 relaxation . | CRYSTENGCOMM , 2025 , 27 (10) , 1439-1445 . |
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Multifunctional memristors with a high memory density, low power consumption, flexibility, programmability, and environmental robustness are essential for next-generation memories. In this work, a titanocene-polysulfide complex (Cp2TiS5) with strong SS interactions and hydrogen bonds was synthesized and integrated with TiO2 to create a novel Cu/TiO2/Cp2TiS5/Ag memristor. This device shows bipolar nonvolatile memory performance with a remarkable ON/OFF ratio (104.8), low switching voltages (V SET, -0.16 V; V RESET, +0.15 V), and low power consumption (2.7 x 10-4 mu W). It exhibits multilevel memory behavior, flexibility, optical modulation (V SET decreases from -1.35 to -0.17 V with decreasing irradiation wavelength), and thermal tolerance (up to 200 degrees C). The electron-rich Cp2TiS5 layer protects the Ag-CFs, while TiO2's oxygen vacancies and unsaturated Ti atoms interact with sulfur from Cp2TiS5, lowering the Schottky barrier and facilitating charge transport. This work offers promising opportunities in flexible memristive devices for neuromorphic computing under extreme conditions.
Keyword ：
flexible memory flexible memory interfacial engineering interfacial engineering memristor memristor multilevel memory multilevel memory titanocene-polysulfide titanocene-polysulfide
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| GB/T 7714 | Zhou, Panke , Lin, Xi , Gao, Yiqun et al. Engineering Titanium Dioxide/Titanocene-Polysulfide Interface for Flexible, Optical-Modulated, and Thermal-Tolerant Multilevel Memristor [J]. | NANO LETTERS , 2025 , 25 (7) : 2741-2748 . |
| MLA | Zhou, Panke et al. "Engineering Titanium Dioxide/Titanocene-Polysulfide Interface for Flexible, Optical-Modulated, and Thermal-Tolerant Multilevel Memristor" . | NANO LETTERS 25 . 7 (2025) : 2741-2748 . |
| APA | Zhou, Panke , Lin, Xi , Gao, Yiqun , Lin, Xiaoli , Zeng, Tao , Li, Haohong et al. Engineering Titanium Dioxide/Titanocene-Polysulfide Interface for Flexible, Optical-Modulated, and Thermal-Tolerant Multilevel Memristor . | NANO LETTERS , 2025 , 25 (7) , 2741-2748 . |
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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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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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The efficient capture of CO2 has always been a goal pursued by people. However, low gas handling capacity and low gas-liquid ratio restricts existing gas-liquid contactors, especially for non-rotating ones. In this study, a gas-liquid contactor with high gas handling capacity and high gas-liquid ratio, the rotating spiral contactor, was developed. Hydrodynamic properties of the contactor were experimentally or theoretically investigated. A novel interface model was developed to describe gas-liquid interface shape. CO2 capture using MEA/DMEA aqueous solution were evaluated in terms of space-time yield (tau), overall volumetric mass transfer coefficient (KGae) and CO2 capture efficiency (eta). A rate -based model was developed and applied for the first time to predict CO2 capture in the rotating spiral contactor. The hydrodynamic results showed that liquid layer thickness was below 400 mu m for the liquid with viscosity of 14.5 mPa.s. Under the rotational speed of 1200 rpm, the gas-liquid ratio ranged from 525 to 2700, while the gas-liquid surface area remained around 667 m2/m3. The interface model predicted interface thickness within a relative deviation of +/- 20 %. The results also showed that tau, KGae and eta respectively were 3428-17021 h-1, 1.0-6.4 kmol.m- 3.h-1.kPa- 1 and 38-98 % at the gas-liquid ratio range of 200-1000. The predicted KGae and eta by rate -based model agreed well with the experimental data within a relative deviation of +/- 15 %. This rotating spiral contactor is ideally suitable for the scenarios with large gas handling requirement and high gas-liquid ratio.
Keyword ：
CO2 capture CO2 capture High gas-liquid ratio High gas-liquid ratio Interface model Interface model Mass transfer coefficient Mass transfer coefficient Rate-based model Rate-based model Rotating spiral contactor Rotating spiral contactor
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| GB/T 7714 | Chen, Tianming , Zheng, Meiqin , Zheng, Chenghui et al. CO2 capture in a novel rotating spiral contactor with hydraulic seal: Hydromechanics, mass transfer and modeling [J]. | SEPARATION AND PURIFICATION TECHNOLOGY , 2024 , 340 . |
| MLA | Chen, Tianming et al. "CO2 capture in a novel rotating spiral contactor with hydraulic seal: Hydromechanics, mass transfer and modeling" . | SEPARATION AND PURIFICATION TECHNOLOGY 340 (2024) . |
| APA | Chen, Tianming , Zheng, Meiqin , Zheng, Chenghui , Yan, Zhongyi , Yan, Zuoyi , Zhou, Caijin et al. CO2 capture in a novel rotating spiral contactor with hydraulic seal: Hydromechanics, mass transfer and modeling . | SEPARATION AND PURIFICATION TECHNOLOGY , 2024 , 340 . |
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Dehydroxylation of biomass-based platform molecules is critical for obtaining building blocks for use in the chemical industry. Acid catalytic dehydration has provided a feasible route. However, simultaneously pursuing high product-selective and ultra-stable catalysts for the dehydroxylation of polyols remains an open challenge. In this study, a strategy for in-situ Bronsted acid sites (BAS) with chemo-adsorption selectivity is proposed. The construction of defect sites B[3] and P[4] species has been proved to be a prerequisite for the dynamic acid site formation at hydrothermal conditions. The BPO4 catalyst with in-situ BAS can achieve the high selectivity of acrolein (similar to 80%) and robust stability of catalyst (over 425 h) using glycerol dehydration as a model reaction. In addition, in-situ BAS is highly selective for secondary hydroxyl groups and has been extended to other substrate applications. This catalytic strategy provides a green, efficient, and economical approach for converting biomassderived polyols to high-value-added chemicals.
Keyword ：
Acrolein Acrolein Biomass Biomass Dehydration Dehydration Glycerol Glycerol In -situ Br onsted acid In -situ Br onsted acid
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| GB/T 7714 | Su, Chenxin , Zhou, Shouquan , Wu, Shaoyun et al. Highly efficient dehydration of polyols: In-situ Brempty setnsted acid from boron phosphate catalyst [J]. | CHEMICAL ENGINEERING JOURNAL , 2024 , 483 . |
| MLA | Su, Chenxin et al. "Highly efficient dehydration of polyols: In-situ Brempty setnsted acid from boron phosphate catalyst" . | CHEMICAL ENGINEERING JOURNAL 483 (2024) . |
| APA | Su, Chenxin , Zhou, Shouquan , Wu, Shaoyun , Gao, Mingbin , Zhang, Weiling , Ma, Zhuang et al. Highly efficient dehydration of polyols: In-situ Brempty setnsted acid from boron phosphate catalyst . | CHEMICAL ENGINEERING JOURNAL , 2024 , 483 . |
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Direct synthesis of urea from CO2, N-2, and H2O through photocatalysis stands out as an effective solution to mitigate the over-release of CO2 and alleviate the high costs associated with nitrogen fertilizer production. The 20% CdS@Bi2WO6 sample exhibits optimal activity under visible light, achieving a urea yield of 10.0 mu molg(-1)h(-1). The photocatalytic efficacy of this composite is attributed to its S-type heterojunction, which can significantly enhance the redox capacity and the efficiency of photogenerated charge separation compared to individual semiconductor components. CdS appears to be responsible for the photocatalytic reduction of N-2 and urea synthesis, while Bi2WO6 is involved in the oxidation of H2O to form O-2 and H+. It is suggested that urea is synthesized on the surface of CdS through two mechanisms: (I) the reaction between the activated intermediates of CO2 and N-2 (mainly) and (II) the reaction of the in situ formed NH3 with the feed CO2.
Keyword ：
CdS@Bi2WO6 CdS@Bi2WO6 nitrogen nitrogen photocatalysis photocatalysis S-type heterojunction S-type heterojunction urea urea
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| GB/T 7714 | Wang, Yingshu , Liu, Yanan , Gan, Jiasi et al. Visible-Light Photocatalytic CO2-N2-H2O to Urea with CdS@Bi2WO6 [J]. | ACS SUSTAINABLE CHEMISTRY & ENGINEERING , 2024 , 12 (39) : 14505-14513 . |
| MLA | Wang, Yingshu et al. "Visible-Light Photocatalytic CO2-N2-H2O to Urea with CdS@Bi2WO6" . | ACS SUSTAINABLE CHEMISTRY & ENGINEERING 12 . 39 (2024) : 14505-14513 . |
| APA | Wang, Yingshu , Liu, Yanan , Gan, Jiasi , Hong, Lu , Shen, Jinni , Zhang, Zizhong et al. Visible-Light Photocatalytic CO2-N2-H2O to Urea with CdS@Bi2WO6 . | ACS SUSTAINABLE CHEMISTRY & ENGINEERING , 2024 , 12 (39) , 14505-14513 . |
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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.
Keyword ：
D-allulose D-allulose Escherichia coli Escherichia coli Fermentation Fermentation Metabolic engineering Metabolic engineering
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| GB/T 7714 | Guo, Qiang , Dong, Zhen-Xing , Luo, Xuan et al. Engineering Escherichia coli for D-allulose biosynthesis from glycerol [J]. | JOURNAL OF BIOTECHNOLOGY , 2024 , 394 : 103-111 . |
| MLA | Guo, Qiang et al. "Engineering Escherichia coli for D-allulose biosynthesis from glycerol" . | JOURNAL OF BIOTECHNOLOGY 394 (2024) : 103-111 . |
| APA | Guo, Qiang , Dong, Zhen-Xing , Luo, Xuan , Zheng, Ling-Jie , Fan, Li-Hai , Zheng, Hui-Dong . Engineering Escherichia coli for D-allulose biosynthesis from glycerol . | JOURNAL OF BIOTECHNOLOGY , 2024 , 394 , 103-111 . |
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