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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

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

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

Constructing bifunctional Co/MoC@N-C catalyst via an in-situ encapsulation strategy for efficient oxygen electrocatalysis

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Journal of Energy Chemistry 2021年第8期30卷 538-546,I0011页

作者： Hui Huang Lingjun Kong Ming Liu Jie He Wei Shuang Yunhua Xu Xian-He Bu School of Materials Science and Engineering National Institute for Advanced MaterialsTKL of Metal and Molecule Based Material ChemistryNankai University300071 TianjinChina School of Materials Science and Engineering Key Laboratory of Advanced Ceramics and Machining Technology(Ministry of Education)and Tianjin Key Laboratory of Composite and Functional MaterialsTianjin University300072 TianjinChina Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) College of ChemistryNankai University300071 TianjinChina

The large-scale application of Zn-air battery requires the development of efficient,low-cost,and stable bifunctional electrocatalysts for the oxygen evolution reaction(OER)and oxygen reduction reaction(ORR).Herein,an electrocatalyst of a Co/Mo C-nanoparticles embedded N-doped carbon(Co/Mo C@N-C)was prepared via the in-situ encapsulation of Co_(2)(CO)_(8)and Mo(CO)6 in ZIF-8 using ball-milling,followed by pyrolysis under an Ar *** used as a bifunctional electrocatalyst,the as-prepared Co/Mo C@N-C showed an ORR half-wave potential of 0.824 V in an alkaline medium and an overpotential of only 290 m V for the OER at 10 m A cm^(-2),which was 70 m V lower than Ru O_(2).The Co/Mo C@N-C was also evaluated as a cathode in a solid-state Zn-air battery and delivered a higher peak discharge power density and better cycling stability(over 1600 min)than Pt/C-Ru O_(2).Most importantly,our work provides a new strategy to prepare bifunctional catalysts and promotes their applications in the energy conversion field.

关键词： In-situ ZIF-8 Bifunctional electrocatalyst New strategy

Wood-Inspired Anisotropic Pu/Chitosan/Mxene Aerogel Used as an Enhanced Solar Evaporator with Superior Salt-Resistance

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SSRN 2022年

作者： Sun, Miao Yang, Haiyue Wang, Xin Gao, Xiong Wang, Chengyu Ho, Shih-Hsin Key Laboratory of Bio-Based Material Science and Technology of Ministry of Education Material Science and Engineering College Northeast Forestry University Harbin150040 China State Key Laboratory of Urban Water Resources and Environment School of Environment Harbin Institute of Technology Harbin150040 China

Solar desalination technology is an effective approach to produce clean water through evaporating seawater driven by solar energy. However, it remains a great challenge to develop a kind of solar evaporator with high salt-resistance, great stability and superior efficiency. Herein, inspired by wood structure, a polyurethane/chitosan/MXene aerogel with directional channel structure was originally designed as the solar evaporator for desalination by the freeze-casting method. The unique anisotropic three-dimensional structure enabled the solar evaporator with efficient water transport network, which can effectively improve the salt-rejecting capability. Meanwhile, due to the combination of the full spectral absorption capacity of MXene and the unique directional channel structure,satisfactory evaporation rate (1.81 kg.m-2 h-1) and high evaporation efficiency (85.07%) under one-sun irradiation were achieved. Moreover, the evaporator continuously achieving high evaporation rate for 12 h under one-sun irradiation and stably floating on the high- concentration salt water for over 14 days. Also, a series of simulation and numerical modeling were carried out to assist in proving the mechanism of water transportation and desalination in the evaporator. Together, this work may provide a promising avenue for developing an efficient solar evaporator with superior salt blocking ability that could be potentially used for long-term clean water generation. © 2022, The Authors. All rights reserved.

关键词： Aerogels

Regulating Dynamic Equilibrium of Active Hydrogen for Super-Efficient Nitrate Electroreduction to Ammonia

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SSRN 2023年

作者： Gao, Yang Li, Yudong Han, Enshan Song, Maosen Yang, Ziyi Guo, Feng He, Yanzhen Yang, Xiaohui School of Chemical Engineering and Technology Hebei University of Technology 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

Electrocatalytic nitrate reduction to ammonia (NRA) is a promising strategy for restoring the global nitrogen cycle imbalance while opening up a sustainable avenue for ammonia synthesis. However, the ammonia selectivity and Faradaic efficiency (FE) of electrocatalysts are restrained by the multiple complex reactions during the whole electrolysis process. Herein, we synthesized a series of cobalt phosphide nanowire array catalysts with different phosphidation degrees grown on nickel foam (CoP NWAs/NF). An extremely high nitrate conversion rate of 97.9% as well as ammonia selectivity and FE of ~100% were attained by the optimal CoP NWAs/NF-300 in the NRA reaction, which was much superior to those of counterpart Co3O4 NWAs/NF catalyst and reported cobalt-based catalysts. Several control experiments together unveiled the dynamic equilibrium of active hydrogen production and consumption is conducive to simultaneously obtaining the super selectivity and FE for ammonia synthesis. This work provides a novel insight for the rational design of high-performance NRA catalyst. © 2023, The Authors. All rights reserved.

关键词： Ammonia

Correction to: Durable Fe3O4/PPy Particle Flow Spun Textile for Electromagnetic Interference Shielding and Joule Heating (Advanced Fiber materials, (2025), 7, 2, (513-527), 10.1007/s42765-024-00498-2)

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Advanced Fiber materials 2025年 1-1页

作者： Liu, Jiaxin Qi, Shuo Wang, Hongshan Fu, Chiyu Xu, Weilin Su, Bin Tang, Wenyang Xia, Zhigang State Key Laboratory of New Textile Materials and Advanced Processing Technologies School of Textile Science and Engineering Industry Research and Development Center of Functional Materials and Textile New Technology Textile Industry Key Laboratory of Yarn and Its Functionalization Wuhan Textile University Hubei Wuhan430200 China State Key Laboratory of Material Processing and Die and Mould Technology School of Materials Science and Engineering Huazhong University of Science and Technology Hubei Wuhan430074 China National Local Joint Engineering Laboratory of Resin-Based Structure and Functional Material Technology Hubei Xiaogan432100 China

In this article the first affiliation details for Jiaxin Liu were incorrectly given as 'State key laboratory of New Textile materials and Advanced Processing Technologies, School of Textile science and Engineering, Wuhan Textile University, Wuhan, 430200, Hubei, People’s Republic of China' but should have been 'State key laboratory of New Textile materials and Advanced Processing Technologies, School of Textile science and Engineering, Industry Research and Development Center of Functional materials and Textile New technology, Textile Industry key laboratory of Yarn and Its Functionalization, Wuhan Textile University, Wuhan, 430200, Hubei, People’s Republic of China'. The original article has been corrected. © Donghua University, Shanghai, China 2025.

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近邻Ni位点对双Fe中心电子自旋态调制实现催化剂增强的催化活性和锌空气电池超长稳定性

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science Bulletin 2023年第18期68卷 2042-2053,M0004页

作者：张灿辉汪兴坤马镇涛姚涵旭刘恒均李铖周健徐仁郑旭升王焕磊李强谷猛江河清黄明华 School of Materials Science and Engineering Ocean University of ChinaQingdao 266100China Qingdao Key Laboratory of Functional Membrane Material and Membrane Technology Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdao 266101China Department of Materials Science and Engineering Southern University of Science and TechnologyShenzhen 518055China National Synchrotron Radiation Laboratory(NSRL) University of Science and Technology of ChinaHefei 230029China College of Physics University-Industry Joint Center for Ocean Observation and Broadband CommunicationState Key Laboratory of Bio-Fibers and Eco-TextilesWeihai Innovation Research InstituteQingdao UniversityQingdao 266071China

在锌空气电池(ZABs)领域中,开发具有优异氧还原反应(ORR)活性和超长期稳定性的Fe基单原子催化剂是一项充满挑战的任务.为此,本文在氮掺杂空心碳球上构建了近邻NiN4单原子位点和Fe_(2)N_(5)双原子位点共存的催化剂(Fe/Ni-NHCS),作为ZABs... 详细信息

在锌空气电池(ZABs)领域中,开发具有优异氧还原反应(ORR)活性和超长期稳定性的Fe基单原子催化剂是一项充满挑战的任务.为此,本文在氮掺杂空心碳球上构建了近邻NiN4单原子位点和Fe_(2)N_(5)双原子位点共存的催化剂(Fe/Ni-NHCS),作为ZABs中高效稳定的空气阴极ORR电催化剂.理论计算和磁性测试结果均表明,近邻NiN_(4)位点的引入对优化Fe2Ns位点的电子自旋态和降低含氧中间体吸附和转化能垒起到关键作用,从而使得Fe/Ni-NHCS具有出色的ORR催化活性和极低的副产物HO_(2)产率。更重要的是,由Fe/Ni-NHCS作为空气阴极驱动的ZABs展现出超过1200h的长时间可充放电循环稳定性。该工作通过调制活性位点的自旋态同时实现了对于催化活性和稳定性的双重优化,从而为能量转换技术的发展拓展了一条新路径。

关键词： Dual-metal-atom Electron spin state Oxygen reduction reaction Rechargeable stability

biomimetic Wood-Confined Hydrogel Ion Channel for Flexible Supercapacitors

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SSRN 2022年

作者： Gao, Chenxiang Liu, Yue Zhang, Jiuzhou Li, Hui Liu, Yang Gu, Jiyou Ma, Tianyi Huo, Pengfei Key Laboratory of Bio-based Material Science and Technology Ministry of Education Northeast Forestry University Harbin150040 China School of Science RMIT University MelbourneVIC3000 Australia

Hydrogel is a promising polymer electrolyte substrate;however, the dimensional stability and ionic conductivity need to be further improved. To tackle this issue, a flexible poly (acrylic acid-co-acrylamide) [P(AA-co-AM)]-filled wood hydrogel composite electrolyte (WHE) is rationally designed and fabricated to substantially enhance the ionic conductivity, leading to high-performance flexible supercapacitors. This is the first demonstration that flexible wood as a porous backbone for hydrogels can effectively regulate ion transport pathways to improve ionic conductivity and enhance the dimensional stability of hydrogels. Firstly, the wood was delignified. Then the P(AA-co-AM) hydrogel was uniformly distributed in the low tortuosity pores of the wood by an in-situ polymerization reaction. The straight pores of wood confine electrolyte ion transport, allowing it to follow the shortest path at high speed. The regulation effect of wood on ion transport paths makes the ionic conductivity (3.0 × 10-2 S cm-1) of the electrolyte standing among the best of composite polymer electrolyte. The optimized supercapacitor exhibited a specific capacitance of 155.64 F g-1 and an energy density of 7.45 W h kg-1 at a power density of 141.87 W kg-1. It also exhibited good flexibility under bending conditions and could maintain similar electrochemical performance at a wide range of bending angles. This work provides an effective strategy for the efficient use of wood resources and the development of low-cost, environmentally friendly and high-performance hydrogel electrolyte materials. © 2022, The Authors. All rights reserved.

关键词： Hydrogels