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Long-term Durability of Seawater Electrolysis for Hydrogen: From Catalysts to Systems

Angewandte Chemie 2024年第47期136卷

作者： Yu Liu Yong Wang Prof. Paolo Fornasiero Prof. Ge Tian Prof. Peter Strasser Prof. Xiao-Yu Yang State Key Laboratory of Silicate Materials for Architectures & State Key Laboratory of Advanced Technology for Materials Synthesis and Processing & School of Chemistry Chemical Engineering and Life Sciences & Foshan Xianhu Laboratory & Laoshan Laboratory & School of Materials Science and Engineering & International School of Materials Science and Engineering Wuhan University of Technology Wuhan 430070 China Department of Chemical and Pharmaceutical Sciences University of Trieste and ICCOM-CNR and INSTM Trieste Research Units 34127 Trieste Italy Technical University Berlin Department of Chemistry 10623 Berlin Germany

Direct electrochemical seawater splitting is a renewable, scalable, and potentially economic approach for green hydrogen production in environments where ultra-pure water is not readily available. However, issues related to low durability caused by complex ions in seawater pose great challenges for its industrialization. In this review, a mechanistic analysis of durability issues of electrolytic seawater splitting is discussed. We critically analyze the development of seawater electrolysis and identify the durability challenges at both the anode and cathode. Particular emphasis is given to elucidating rational strategies for designing electrocatalysts/electrodes/interfaces with long lifetimes in realistic seawater including inducing passivating anion layers, preferential OH − adsorption, employing anti-corrosion materials, fabricating protective layers, immobilizing Cl − on the surface of electrocatalysts, tailoring Cl − adsorption sites, inhibition of OH − binding to Mg 2+ and Ca 2+ , inhibition of Mg and Ca hydroxide precipitation adherence, and co-electrosynthesis of nano-sized Mg hydroxides. synthesis methods of electrocatalysts/electrodes and innovations in electrolyzer are also discussed. Furthermore, the prospects for developing seawater splitting technologies for clean hydrogen generation are summarized. We found that researchers have rethought the role of Cl − ions, as well as more attention to cathodic reaction and electrolyzers, which is conducive to accelerate the commercialization of seawater electrolysis.

关键词： direct electrochemical seawater splitting hydrogen production durability electrocatalysts/electrodes/interfaces design electrolyzer innovation

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Rapid fabrication and thermoelectric performance of SnTe via non-equilibrium laser 3D printing

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Rare Metals 2018年第4期37卷 300-307页

作者： Tian-Le Chen Chuang Luo Yong-Gao Yan Ji-Hui Yang Qing-Jie Zhang Ctirad Uher Xin-Feng Tang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Department of Materials Science and Engineering University of Washington Department of Physics University of Michigan

Thermoelectric technologies based on Seebeck and Peltier effects, as energy techniques able to directly convert heat into electricity and vice versa, hold promise for addressing the global energy and environmental problems. The development of efficient and low-cost thermo- electric modules is the key to their large-scale commercial applications. In this paper, using a non-equilibrium laser 3D printing technique, we focus an attention on the fabrication of mid-temperature p-type SnTe thermoelectric materials. The influence of laser power, scanning speed and layer thickness on the macro-defects, chemical and phase composition, microstructure and thermoelectric performance was systematically investigated. First and foremost, the processing parameter window for printing a highquality layer is determined. This is followed by the finite element method used to simulate and verify the influence of the laser-induced molten pool temperature distribution on the final composition and microstructure. Finally, the high-performance SnTe layer with 10 mm × 10 mm in area is produced within seconds with room temperature Seebeck coefficient close to that of SnTe manufactured by the traditional methods. Consequently, this work lays a solid foundation for the future fabrication of thermoelectric modules using laser non-equilibrium printing techniques.

关键词： Selective laser melting Laser non-equilibriumheating SnTe compound Thermoelectric performance

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Influence of V/P Ratio on the Catalytic Performance of VPO/SiO_2 Catalysts for Ammoxidation of Chloro-Substituted Toluenes

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Wuhan University Journal of Natural Sciences 2019年第1期24卷 23-29页

作者： DONG Yanling XU Longlong ZHANG Zhenguo LIU Wenhui LI Xiongjian ZHONG Yalan HUANG Chi State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Tianhua Chemical Branch Xi'an Sunward Aeromat Co.Ltd. Sanjiang Chemical Factory of CSSG College of Chemistry and Molecular Sciences Wuhan University

A series of vanadium phosphate oxide(VPO) catalysts supported on silica(VPO/Si O2) with various mole ratios of V/P(nV:nP=1:0.8-1:3) were prepared through impregnation method. The catalytic activity was evaluated by ammoxidation reactions of several kinds of chloro-substituted toluenes(CT) in a fixed-bed reactor. The catalyst presented the best performance when nV:nP is 1:1.6. The prepared catalysts were characterized by N2 adsorption, hydrogen temperature programmed reduction(TPR) and ammonia temperature programmed desorption(TPD) and etc. The results reveal that P can decrease the bonding energy of V=O and increase the mobility of lattice oxygen which was beneficial for the improvement of the catalysts, while too much P can greatly decrease the average oxidation number of V which leads to deactivation of the catalysts. The surface acidity of the VPO/Si O2 catalysts is affected by nV:nP and the catalyst had the highest surface acidity when nV:nP is 1:1.6. The selectivity of catalysts is proportional to the surface acidity when nV:nP is lower than 1:3.0.

关键词： ammoxidation VPO/SiO2 catalyst substituted toluenes substituted benzonitriles

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Enhanced performance of solid-state Li–O_2 battery using a novel integrated architecture of gel polymer electrolyte and nanoarray cathode

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Rare Metals 2018年第6期37卷 527-535页

作者： Liang Xiao Er-Wei Li Jing-Yu Yi Wen Meng Bo-Hua Deng Jin-Ping Liu School of Chemistry Chemical Engineering and Life Sciences Wuhan University of Technology State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology

The present work proposes a novel strategy to fabricate an integrated architecture of gel polymer electrolyte （GPE）-nanoarray cathode for lithium-O2 batteries （LOBs）. As a proof-of-concept experiment, the photo-initiated in situ polymerization of GPE was carried out via incorporating the precursor solution in advance into a self- standing binder-free oxygen electrode of Co3O4 nanosheets array grown on carbon cloth （Co3O4@CC）, forming an integrated GPE-Co3O4@CC architecture. The performance of the solid-state LOBs using the GPE-Co3O4@CC assembly is greatly enhanced compared to the counterparts with a traditional cell structure, in which GPE was sandwiched by a lithium metal and a cathode. The enhanced performance is ascribed to the combination of the in situ polymerization of GPE and the versatile structure of nanoarray electrode, which results in abundant interfacial contacts between GPE and electrode. This work presents an alternative way to develop high-performance solid-state LOBs by combining the advantages of both gel polymer electrolytes and nanoarray electrodes.

关键词： Solid-state Li-O2 battery Gel polymer electrolyte Co3O4 nanosheet Nanoarray electrode Electrolyte-cathode interface

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Room-temperature large photoinduced magnetoresistance in semi-insulating gallium arsenide-based device

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Chinese Physics B 2018年第6期27卷 394-399页

作者： Xiong He Zhi-Gang Sun State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China

It is still a great challenge for semiconductor based-devices to obtain a large magnetoresistance（MR） effect under a low magnetic field at room temperature. In this paper, the photoinduced MR effects under different intensities of illumination at room temperature are investigated in a semi-insulating gallium arsenide（SI-Ga As）-based Ag/SI–Ga As/Ag device. The device is subjected to the irradiation of light which is supplied by light-emitting diode（LED） lamp beads with a wavelength in a range of about 395 nm–405 nm and the working power of each LED lamp bead is about 33 mW. The photoinduced MR shows no saturation under magnetic fields（B） up to 1 T and the MR sensitivity S（S = MR/B） at low magnetic field（B = 0.001 T） can reach 15 T^（-1）. It is found that the recombination of photoinduced electron and hole results in a positive photoinduced MR effect. This work implies that a high photoinduced S under a low magnetic field may be obtained in a non-magnetic semiconductor device with a very low intrinsic carrier concentration.

关键词： GaAs magnetoresistance carrier recombination

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Determination of TyG index in the whole blood using mid-infrared fiber evanescent wave spectroscopic sensor

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Sensors and Actuators B: Chemical 2025年 442卷

作者： Yongkun Zhao Yinsheng Xu Zhifei Yang Yantao Xu Haitao Guo Zheng Zhao Tianxiang You Mengling Xia Minghong Yang Xianghua Zhang State Key Laboratory of Silicate Materials for Architectures Wuhan University of Technology Wuhan 430070 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China State Key Laboratory of Transient Optics and Photonics Xi'an Institute of Optics and Precision Mechanics Chinese Academy of Sciences (CAS) Xi'an 710119 China National Engineering Laboratory for Fiber Optic Sensing Technology Wuhan University of Technology Wuhan 430070 China Institut des Sciences Chimiques de Rennes - UMR CNRS 6226 Université de Rennes Rennes 35042 France

The triglyceride-glucose (TyG) index has emerged as a reliable surrogate marker for assessing insulin resistance, emphasizing the need for a rapid and precise technique to quantify blood glucose and triglyceride levels. In this study, we have developed a mid-infrared fiber evanescent wave spectroscopic (MIR-FEWS) sensor, tapered from Ge 10 As 20 Ga 5 Se 65 infrared fiber, for the simultaneous analysis of both triglyceride and glucose. This innovative sensor achieves a low limit of detection (LoD) of 1.18 mM for glucose and 0.23 mM for triglycerides, respectively, showcasing its possibility for blood test. Moreover, the sensor exhibits excellent repeatability and stability, validating its applicability for determining the TyG index in whole blood. When applied to measure the TyG index in Sprague-Dawley (SD) rats, the results closely align with those from commercial blood glucose and lipid meters, underscoring its accuracy. The proposed MIR-FEWS sensor has multiple advantages, including multi-component analysis capabilities, high sensitivity, straightforward operation, label-free measurement, and cost-effectiveness, thereby presenting a novel and promising technique for rapid and reliable TyG index detection.

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Ammonium Ion Batteries: Material, Electrochemistry and Strategy

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Angewandte Chemie (International ed. in English) 2023年第23期62卷 e202301629页

作者： Runtian Zheng Yuhang Li Haoxiang Yu Xikun Zhang Ding Yang Lei Yan Yu Li Jie Shu Bao-Lian Su School of Materials Science and Chemical Engineering Ningbo University Ningbo 315211 Zhejiang China. Laboratory of Inorganic Materials Chemistry (CMI) University of Namur 61 rue de Bruxelles 5000 Namur Belgium. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 Hubei China.

Ammonium-ion batteries (AIBs) have recently attracted increasing attention in the field of aqueous batteries owing to their high safety and fast diffusion kinetics. The NH storage mechanism is quite different from that of spherical metal ions (e.g. Li , Na , K , Mg , and Zn ) because of the formation of hydrogen bonds between NH and host materials. Although many materials have been proposed as electrode materials for AIBs, their performances hardly meet the requirement of future electrochemical energy storage devices. It is thus urgent to design and exploit advanced materials for AIBs. This review highlights the state-of-the-art research on AIBs. The insights into the basic configuration, operating mechanism and recent progress of electrode materials and corresponding electrolytes for AIBs have been comprehensively outlined. The electrode materials are classified and compared according to different NH storage behaviour in the structure. The challenges, design strategies and perspectives are also discussed for the future development of AIBs.

关键词： Ammonium-Ion Batteries Aqueous Electrolytes Electrode materials Hydrogen Bond Operating Mechanisms

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Microstructure and composition characterization of teeth from different species 42

Microstructure and composition characterization of teeth fro...

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42nd International Conference on advanced Ceramics and Composites, ICACC 2018

作者： Han, Jun Zeng, Hui Ping, Hang Jia, Wei Xie, Jingjing Chi, Wenhao Xiea, Hao Fu, Zhengyi State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology WuhanPR430070 China WuHan institute of Marine Electric Propulsion WuhanPR430064 China

ISBN: (纸本)9781119543305

Biological materials are well worth learning for our own synthetic materials. It’s of great interest that the growth rate of teeth is different in species. The growth rate of human teeth is slow, but faster for rat and shark. The microstructure and composition difference may have a great effect on the growth rate. In this study, the microstructure and composition from human teeth, rat teeth and shark teeth were well characterized by scanning electron microscopy and X-ray diffraction. It is demonstrated that the size of individual apatite crystal and the growth direction of apatites in those enamel or enameloid display different types. The diameter of shark enameloid is the biggest. Three growth directions can be observed in shark enameloid but only two in human and rat. The main inorganic composition of the three teeth is also different. It is hydroxyapatite (HAP) for human and rat teeth, while fluorapatite (FAP) for shade. The XRD patterns also indicate that the assemble degree of human teeth is the most sophisticated. The results may give useful insight into new materials synthesis technology. © 2019, American Ceramic Society. All rights reserved.

关键词： Rats

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Quadrupling the stored charge by extending the accessible density of states

arXiv

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arXiv 2021年

作者： Yan, Mengyu Wang, Peiyao Pan, Xuelei Wei, Qiulong Liu, Jefferson Z. Zhao, Yunlong Zhao, Kangning Dunn, Bruce Liu, Jun Yang, Jihui Mai, Liqiang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China Department of Materials Science and Engineering University of Washington SeattleWA98105 United States Department of Mechanical Engineering University of Melbourne VIC3010 Australia Department of Chemistry and Biochemistry University of California Los AngelesCA90095 United States Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Xianhu hydrogen Valley Foshan528200 China

Nanosized energy storage, energy-harvesting, and functional devices are the three key components for integrated self-power systems. Here, we report on nanoscale electrochemical devices with a nearly three-fold enhanced stored charge under the field effect. We demonstrated the field-effect transistor can not only work as a functional component in nanodevices but also serve as an amplifier for the nanosized energy storage blocks. This unusual increase in energy storage is attributed to having a wide range of accessible electronic density of states (EDOS), hence redox reactions are occurring within the nanowire and not being confined to the surface. Initial results with MoS2 suggest that this field effect modulated energy storage mechanism may also apply to many other redox-active materials. Our work demonstrates the novel application of the field-effect in energy storage devices as a universal strategy to improve ion diffusion and the surface-active ion concentration of the active material, which can greatly enhance the charge storage ability of nanoscale devices. The fabrication process of the field-effect energy storage device is also compatible with microtechnology and can be integrated into other microdevices and nanodevices. Copyright © 2021, The Authors. All rights reserved.

关键词： Electrochemistry

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Directly grown nanostructured electrodes for high-power and high-stability alkaline nickel/bismuth batteries

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Science China materials 2019年第4期62卷 487-496页

作者： Deliang Ba Yuanyuan Li Yunfei Sun Zaiping Guo Jinping Liu School of Optical and Electronic Information Huazhong University of Science and Technology Engineering Materials Institute School of Mechanical Materials & Mechatronics Engineering University of Wollongong State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology

Bismuth oxide(Bi2O3) has received great attention as an anode material for alkaline nickel/bismuth(Ni/Bi) batteries due to its high theoretical capacity and easy preparation. However, the generally poor conductivity of metal oxides and the instability of Bi2O3 during cycling severely limit the device performance. Herein, we present the use of directly grown Bi2O3 nanoflake film with kinetic advantages as the anode for Ni/Bi batteries. Particularly, glucose-derived carbon is integrated onto the surfaces of nanoflakes, which not only enhances the electron transfer but also buffers the conversion-reaction induced volume expansion of Bi2O3, helping maintaining the cycling stability of the film. The resulting Bi2O3@C electrode exhibits high specific capacity, excellent rate performance(can be charged within 6.7 s), and good cycle stability(~1,200 times;fading rate of only 0.011% per cycle).When assembled with a nickel oxide(NiO) nanosheet array cathode in basic electrolyte, a fully binder-free Ni/Bi battery is obtained, which delivers maximum energy and power densities of 34.29 W h kg-1 and 12,159.8 W kg-1, respectively, and good cycling performance. The power density is even much superior to that of many hybrid/asymmetric *** work suggests a new generation of thin-film Ni/Bi batteries for potential high-power electronic applications.

关键词： Bi2O3 binder-free high power high stability alkaline rechargeable battery

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