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SSRN 2024年

作者： Yang, Ziyi Li, Yudong Liu, Dan Song, Maosen Gao, Yang Yang, Bin He, Yanzhen Han, Enshan Yang, Xiaohui School of Chemical Engineering Hebei University of Technology Tianjin300400 China Key Laboratory of Bio-based Material Science & Technology Northeast Forestry University Ministry of Education Heilongjiang Harbin150040 China Chongqing Institute of Green and Intelligent Technology Chinese Academy of Sciences Chongqing400714 China

The adsorption of nitrate is the key to enhancing the electrocatalytic nitrate reduction reaction (NitRR). Constructing oxygen vacancies (OVs) has been an effective strategy that can modulate the local electronic structure and enhance the adsorption of nitrate. However, the existing methods for effectively regulating the concentration of oxygen vacancies are still limited. Herein, based on a detailed understanding of the NitRR mechanism, a typical hydrolysis-coupling redox (HCR) reaction has been designed to prepare unique 3D Cu/Fe2O3 core-shell nanorod array cathodes with controllable oxygen vacancy concentration. The optimal Cu/Fe2O3-13 achieves a high nitrate conversion of 99.10 % and ammonia selectivity of 98.30 % in a 0.2 M Na2SO4 solution with 100 ppm -N at -1.4 V vs. SCE. Furthermore, the Cu/Fe2O3-13 exhibits exceptional stability throughout a 30-hour electrocatalytic process. The outstanding electrochemical performance is attributed to the enhancement mechanism of OVs and a unique nanorod array structure with a high density of surface-exposed OVs and high-throughput transport pathways for ions-aspects. © 2024, The Authors. All rights reserved.

关键词： Electrocatalysis

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Recent progress on surface chemistryⅠ:Assembly and reaction

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Chinese Chemical Letters 2024年第12期35卷 43-94页

作者： Xin Li Zhen Xu Donglei Bu Jinming Cai Huamei Chen Qi Chen Ting Chen Fang Cheng Lifeng Chi Wenjie Dong Zhenchao Dong Shixuan Du Qitang Fan Xing Fan Qiang Fu Song Gao Jing Guo Weijun Guo Yang He Shimin Hou Ying Jiang Huihui Kong Baojun Li Dengyuan Li Jie Li Qing Li Ruoning Li Shuying Li Yuxuan Lin Mengxi Liu Peinian Liu Yanyan Liu Jingtao Lü Chuanxu Ma Haoyang Pan JinLiang Pan Minghu Pan Xiaohui Qiu Ziyong Shen Shijing Tan Bing Wang Dong Wang Li Wang Lili Wang Tao Wang Xiang Wang Xingyue Wang Xueyan Wang Yansong Wang Yu Wang Kai Wu Wei Xu Na Xue Linghao Yan Fan Yang Zhiyong Yang Chi Zhang Xue Zhang Yang Zhang Yao Zhang Xiong Zhou Junfa Zhu Yajie Zhang Feixue Gao Yongfeng Wang Center for Carbon-based Electronics and Key Laboratory for the Physics and Chemistry of Nanodevices School of ElectronicsPeking UniversityBeijing 100871China Spin-X Institute School of MicroelectronicsSouth China University of TechnologyGuangzhou 511442China School of Materials and Energy Guangzhou Key Laboratory of Low-Dimensional Materials and Energy Storage DevicesGuangdong University of TechnologyGuangzhou 510006China Faculty of Materials Science and Engineering Kunming University of Science and TechnologyKunming 650093 China i-Lab CAS Key Laboratory of Nanophotonic Materials and DevicesSuzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou 215123China CAS Key Laboratory of Molecular Nanostructure and Nanotechnology CAS Research/Education Center for Excellence in Molecular SciencesBeijing National Laboratory for Molecular Sciences(BNLMS)Institute of ChemistryChinese Academy of SciencesBeijing 100190China State Key Laboratory for Organic Electronics and Information Displays&Jiangsu Key Laboratory for Biosensors Institute of Advanced MaterialsJiangsu National Synergetic Innovation Center for Advanced MaterialsNanjing University of Posts and TelecommunicationsNanjing 210023China Institute of Functional Nano and Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and DevicesSoochow UniversitySuzhou 215123China Hefei National Research Center for Physical Sciences at the Microscale and Synergetic Innovation Center of Quantum Information and Quantum Physics University of Science and Technology of ChinaHefei 230026China Institute of Physics&University of Chinese Academy of Sciences Beijing 100190China State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China College of Chemistry Beijing Normal UniversityBeijing 100875China Beijing National Laboratory for Molecular Sciences(BNLMS) College of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China School

Surface chemistry focuses on the investigation of the adsorption,migration,assembly,activation,reaction,and desorption of atoms and molecules at *** chemistry plays the pivotal roles in both fundamental science and applied *** review will summarize the recent progresses on surface assembly,synthesis and catalysis investigated mainly by scanning tunneling microscopy and atomic force *** assemblies of water and small biomolecules,construction of Sierpin′ski triangles and surface chirality are ***-surface synthesis of conjugated carbo-and heterocycles and other kinds of carbon nanostructures are *** model catalysis,including single-atom catalysis and electrochemical catalysis,are discussed at the single-atom level.

关键词： Surface chemistry Assembly Surface synthesis Catalysis on surface Surface electrochemical processes

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Reprogramming the metabolism of Synechocystis PCC 6803 by regulating the plastoquinone biosynthesis

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Synthetic and Systems biotechnology 2021年第4期6卷 351-359页

作者： Jianhua Fan Dongqing Zhou Cheng Chen Ju Wu Hui Wu State Key Laboratory of Bioreactor Engineering East China University of Science and TechnologyShanghai200237PR China Department of Applied Biology East China University of Science and TechnologyShanghai200237PR China Shanghai Collaborative Innovation Center for Biomanufacturing Technology 130 Meilong RoadShanghai200237China Key Laboratory of Bio-based Material Engineering of China National Light Industry Council 130 Meilong RoadShanghai200237China

Cyanobacteria can utilize CO2 or even N2 to produce a variety of high value-added products ***(PQ)is an important electron carrier in both of the photosynthetic and respiratory electron transport *** the content of PQ,as well as their redox state,have an important effect on physiology and metabolism,there are relatively few studies on the synthesis of PQ and its related metabolic regulation mechanism in photosynthetic *** this study,the strategies of overexpression of Geranyl diphosphate:4-hydroxybenzoate geranyltransferase(lepgt)and addition of 4-hydroxybenzoate(4-HB)as the quinone ring precursor were adopted to regulate the biosynthesis of PQ in Synechocystis PCC *** with the analysis the photosystem activity,respiration rate and metabolic components,we found the changes of intracellular PQ reprogrammed the metabolism of Synechocystis PCC *** results showed that the overexpression of lepgt reduced PQ content dramatically,by 22.18%.Interestingly,both of the photosynthesis and respiration rate were *** addition,the intracellular lipid and protein contents were significantly ***,the addition of low concentrations of 4-HB enhanced the biosynthesis of PQ,and the intracellular PQ contents were increased by 14.76%-70.86%in different *** of 4-HB can regulate the photosystem efficiency and respiration and reprogram the metabolism of Synechocystis PCC 6803 *** a word,regulating the PQ biosynthesis provided a novel idea for promoting the reprogramming the physiology and metabolism of Synechocystis.

关键词： Cyanobacteria Plastoquinone LePGT 4-HB Metabolic rewiring

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Ionic liquid-modulated silk fibroin membranes for improved osmotic energy harvesting

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Electrochimica Acta 2025年 532卷

作者： Zhao, Jiawei Shang, Bo Lin, Cuncai Ma, Xingteng Wang, Yilin Qiao, Shenglin Sui, Xin Chen, Kezheng Key Laboratory of Marine Bio-based Fibers of Shandong Province Qingdao Application Technology Innovation Center of Advanced Fibers and Composites College of Materials Science and Engineering Qingdao University Qingdao266071 China Qingdao266042 China

The utilization of reverse electrodialysis (RED) technology for efficient conversion of salinity-gradient energy represents a promising strategy for advancing green and low-carbon energy development. The key challenge of RED technology lies in the fabrication of high-performance ion exchange membranes that possess both large surface areas and long-term stability. Silk fibroin (SF), characterized by their abundance of negative charges, ease of processability, and robust mechanical properties, make them particularly suitable for use in energy harvesting through ion permeation. However, a critical limitation in the application of SF membranes is the artificial control of their pore size, which constrains their performance and scalability. Herein, we propose a novel approach for fabricating SF membranes with tunable pore sizes by integrating ionic liquid (IL) with SF. Upon immersion in pure water, the IL dissolve, creating ion transport channels within the membrane. The dimensions of these transport channels can be precisely regulated by adjusting the ratio of IL to SF, thereby enabling control over the membrane's output power density. Under simulated seawater/river water conditions, the resulting SF membrane demonstrates a stable output power density of 9.6 W/m2. This straightforward strategy presents a promising approach for enhancing the efficiency of salinity-gradient energy harvesting. © 2025 Elsevier Ltd

关键词： Dialysis membranes

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Citric Acid/Chitosan Adhesive with Viscosity-Controlled for Wood Bonding Through Supramolecular Self-Assembly

SSRN

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SSRN 2023年

作者： Cai, Lijian Chen, Yutong Lu, Zetan Wei, Ming Zhao, Xin Xie, Yanjun Li, Jian Xiao, Shaoliang Key Laboratory of Bio-based Material Science & Technology Ministry of Education Northeast Forestry University Harbin China Engineering Research Center of Advanced Wooden Materials Ministry of Education Northeast Forestry University Harbin China

Developing bio-based sustainable wood adhesives is significant as a substitute for petroleum-derived adhesives. However, the existing bio-based adhesives have disadvantages of complex fabrication, uncontrollable viscosity, and poor water resistance. Herein, we developed a citric acid/chitosan adhesive with viscosity-controlled and water-resistant features by one-step dissolution at room temperature based on the supramolecular self-assembly strategy. Different wood products (plywood, laminated veneer lumber and particleboard) with superior performance were prepared by applying that adhesive on veneer and wood particles (fine particles and rough particles). The adhesion mechanism was mechanical interlocks and cross-linking of citric acid/chitosan in adhesives with those in the cell wall. This work provides high promise for alternatives to traditional unsustainable wood adhesives (urea-formaldehyde, melamine-urea-formaldehyde and phenolic resins) for fabricating different wood products. © 2023, The Authors. All rights reserved.

关键词： Adhesives

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Construction of Moiré-Like Tio2/Polypyrrole Electrodes for High Performance Photo-Assisted Supercapacitors

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SSRN 2024年

作者： Cai, Hanwen Li, Yudong Liu, Dan Yang, Xiaohui Zhou, Desheng Han, Enshan Li, Xinhao Li, Qingyue He, Yanzhen School of Chemical Engineering and Technology Hebei University of Technology Tianjin300130 China Hebei Key Laboratory of Functional Polymers Tianjin300130 China Key Laboratory of Bio-based Material Science & Technology Northeast Forestry University Harbin150040 China Chongqing Institute of Green and Intelligent Technology Chinese Academy of Sciences Chongqing400714 China School of Energy Science and Engineering Harbin Institute of Technology Harbin150001 China

There is currently a need for research into using external energy to increase the performance of the supercapacitor in energy storage systems because of their poor energy density. This paper reports the effective creation of photo-assisted supercapacitors with moiré-like morphology using polypyrrole (PPy) and titanium dioxide nano powder to replicate the surface of inexpensive and widely available CD discs. The composite material combines the moiré-like superstructure's strong light trapping property with titanium dioxide's high photo-sensitivity, achieving the aims of boosting light absorption, extending the optical route, and improving capacitor performance under light. By combining morphology construction and external energy interventions to improve capacitor performance, the specific capacitance under light is 509.0 F g-1 at 1 A g-1, 13.1% higher than the same material without moiré-like morphology (449.9 F g-1). When assemble into a sandwich-structured symmetric supercapacitor, it has an area specific capacitance of 99.42 mF cm-2 and an energy density of 7.28 Wh kg-1 at a power density of 217.4 W kg-1, outperforming typical photo-assisted supercapacitors. The current work suggests a practical and straightforward method for increasing the light absorption efficiency and performance of photo-assisted supercapacitors. © 2024, The Authors. All rights reserved.

关键词： Morphology

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Cobalt monosulfide nanofibers:ethanol sensing and magnetic properties

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Rare Metals 2021年第6期40卷 1554-1560页

作者： Zhi-Da Hu Xi-Yu Sun Hang-Fei Li Ya-Ru Kang Xian-Qiang Song Peng Wang Qiao-Tong Luan Xue-Dong Wang Zong-Tao Chi Wan-Feng Xie School of Electronics and Information Qingdao UniversityQingdao 266071China Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Institute of Functional Nano and Soft Materials(FUNSOM)Soochow UniversitySuzhou 215123China School of Material Science and Engineering Qingdao UniversityQingdao 266071China State Key Laboratory of Bio-Fibers and Eco-Textiles Qingdao UniversityQingdao 266071China

Metal sulfide nanomaterials have attracted great interest because of their excellent properties and promising applications in sensing,energy harvesting,magnetic and optoelectronic devices,especially their well-aligned crystalline nanostructures are highly desirable for the enhanced performance and novel *** this study,the cobalt monosulfide(CoS)nanofibers with uniform shape and good crystallinity were firstly obtained via electrospinning and atmospheric calcination routes under controllable *** was found that the CoS nanofibers exhibited ethanol sensing properties at the optimum working temperature of 200℃,the response was 11.6 toward 100×10^(-6) ethanol gas,and the CoS nanofibersbased sensor exhibits a short response time and recovery time of 5 and 6 s at the optimum temperature,respectively,the result also shows that the sensor has good stability after 50 days,which would be a favorable characteristic as a promising *** addition,the Pauli paramagnetic property of CoS nanofibers was also investigated at room temperature.

关键词： Electrospinning Nanofiber CoS Ethanol sensing Paramagnetic

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Effect of organic carbon sources on the anodic corrosion of magnesium AZ31B by sulfate-reducing prokaryote

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Journal of Central South University 2024年第10期31卷 3369-3381页

作者： LI Jin-rong ZHANG Jie KRISHNAMURTHY Mathivanan ZHU Qing-jun XING Shao-hua ZHANG Rui-yong SAND Wolfgang DUAN Ji-zhou HOU Bao-rong Key Laboratory of Advanced Marine Materials Key Laboratory of Marine Environmental Corrosion and Bio-foulingInstitute of OceanologyChinese Academy of SciencesQingdao 266071China Institute of Marine Corrosion Protection Guangxi Academy of SciencesNanning 530007China College of Materials Science and Engineering Qingdao University of Science and TechnologyQingdao 266042China Open Studio for Marine Corrosion and Protection Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China State Key Laboratory for Marine Corrosion and Protection Luoyang Ship Material Research InstituteQingdao 266101China Institute of Biosciences University of Mining and Technology09599 FreibergGermany Aquatic Biotechnology Faculty for ChemistryUniversity of Duisburg-Essen45141 EssenGermany

Corrosion caused by sulfate-reducing prokaryotes(SRP)is an important cause of magnesium alloy anode failure in oil *** this study,the effects of Desulfovibrio ***3 on the corrosion behavior of AZ31B magnesium alloy anode in organic carbon sources with different contents in simulated tidal flat environment were analyzed using weight loss test,surface analysis and electrochemical analysis *** results showed that the weight loss rate of coupons in low carbon sources contents(0%,1%,10%)was higher than that in 100%carbon *** analyses showed that the corrosion current density(J_(corr))under low carbon sources contents was larger,while the charge transfer resistance(R_(ct))was lower,leading to a higher corrosion rate compared to those under 100%carbon sources *** from scanning electron microscopy(SEM)and confocal laser scanning microscopy(CLSM)revealed more severe pitting corrosion on the alloy surface in the absence of carbon *** addition,a large number of nanowires were observed between bacteria on the alloy surface using *** with thermodynamic calculations,it was demonstrated that the corrosion of coupons by Desulfovibrio ***3 in the absence of carbon sources was achieved through extracellular electron transfer.

关键词： AZ31B magnesium anode organic carbon source microbiologically influenced corrosion(MIC) sulfatereducing prokaryotes

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Construction of Multi-Dimensional Cu2se@Amorphous Carbon@Graphene Nanobelt/G-C3n4 Z-Scheme Heterojunctions with Enhanced Photocatalytic Hydrogen Evolution Activity

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SSRN 2023年

作者： Liu, Xing Li, Yudong Li, Pengwei School of Materials Science and Engineering Yancheng Institute of Technology Yancheng224051 China Key Laboratory of Bio-based Material Science & Technology Ministry of Education Northeast Forestry University Harbin150040 China North China University of Water Resources and Electric Power China

Herein, the Cu2Se@Amorphous Carbon@Graphene Nanobelt/g-C3N4 (Cu2Se@C@GN/g-CN) nanocomposite is successfully synthesized by constructing a spatial garphene cross network with the strategy of "Winding + Adsorption" to form an effective orientated directed transmission band of electrons channel between the three-dimentional Cu2Se and two-dimensional g-CN. Such unique structure of Cu2Se@C@GN/g-CN can realize the effective grasp of the two-dimensional g-CN sheet and the three-dimensional Cu2Se@C through multi-path connection to guarantee the photogenerated electron in g-CN can directly transport to the Cu2Se along the inter-connected spatial cross 1D graphene nanobelt network to make sure the immediately reduction of H+ to hydrogen. The Z-Scheme charge transfer mechanism contributes to the spatial separation of charges and maintains the strongest redox potential. Notably, the photocatalytic hydrogen evolution rate of Cu2Se@C@GN/g-CN can reach up to 127.3 μmol g-1 h-1, which is higher than Pt(2%)/g-CN (111.6 μmol g-1 h-1) and 106 times higher than the g-CN (1.2 μmol g-1 h-1). © 2023, The Authors. All rights reserved.

关键词： Selenium compounds

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Decorative Wood Fiber/High-Density Polyethylene Composite with Canvas or Polyester Fabric

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Journal of Renewable materials 2020年第8期8卷 879-890页

作者： Jialin Lv Rao Fu Yinan Liu Xuelian Zhou Weihong Wang Pengbo Xie Tingwei Hu Key Lab of Bio-Based Material Science&Technology of EducationMinistry Northeast Forestry UniversityHarbin150040China Taizhou University Taizhou318000China

Wood-plastic composite is an environmentally friendly material,due to its use of recycled thermoplastics and plant ***,its surface lacks attractive aesthetic *** this paper,a method of decorating wood fiber/high-density polyethylene(WF/HDPE)without adding adhesive was *** or polyester fabrics were selected as the surface decoration *** influence of hot-pressing temperature and WF/HDPE ratio on the adhesion was *** surface bonding strength,water resistance,and surface color were evaluated,and observation within the infrared spectrum and under scanning electron microscopy was used to analyze the bonding *** results showed that the fabric and WF/HDPE substrate could be closely laminated together depending on the HDPE layer accumulated on the WF/HDPE *** molten HDPE matrix penetrates canvas more easily than polyester fabric,and the canvasveneered composite shows a greater bonding strength than does the polyester fabric-veneered composite.A higher proportion of the thermoplastic component in the substrate improved the *** the hot-pressing temperature exceeded 160°C,the fabric-veneered WF/HDPE panels had greater water resistance,although the canvas fabric changed more obviously in terms of fiber shape and color,compared with the polyester *** the canvas fabric,140°C–160°C was a suitable hot-pressing temperature,whereas 160°C–180°C was more suitable for polyester *** proportion of the thermoplastic component in the composite should be not less than 30%to achieve adequate bonding strength.

关键词： wood-plastic composites high-density polyethylene polyester fiber canvas surface decoration

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