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Structural and functional design of geopolymer adsorbents:a review

Tungsten 2024年第1期6卷 48-76页

作者： Hai-Ze Jin Chen-Xi Qiu Yan-Song Li Bao Liu Jun-Yi Liu Qiao Chen Xue-Feng Lu Cui-Xia Li Qi-Kun Wang School of Materials Science and Engineering Lanzhou University of TechnologyLanzhou 730050China State key laboratory of Advanced Processing and Recycling of Non-Ferrous Metals Lanzhou 730050China Shenyang Nonferrous Metals Research Institute Co. LTDShenyang 110000China Automotive Engineering Research Institute Jiangsu UniversityZhenjiang 212013China School of Materials Science and Engineering Jingdezhen Ceramic UniversityJingdezhen 333403China

The water pollution derived from the discharge of heavy metals,antibiotics,dyes and surfactants wastewater,*** seriously affected human survival and ecological *** an efficient and low-cost physical wastewater treatment process,the adsorption is a continuous hot spot in related scientific research and *** are non-crystal or semi-crystalline materials with high-efficiency adsorption performance due to the alkali metal ions that balance the electronegative aluminosilicate skeleton can be efficiently replaced by other cations in the aqueous *** related studies of different application conditions,service objects and morphological differences of geopolymer adsorbents based on structure-function design have been in-depth exploration and *** review aims to summarize the research progres s of the structure-function design based on the geopolymerization mechanism and kinetics and service *** overview of service characteristics and progress of geopolymers in the wastewater treatment field(e.g.,dyes,heavy metals,radionuclides,surfactants,antibiotics,ammonium,phosphorus,nitrogen and CO_(2),etc.)are systematically *** the evolution and development of morphological differences and the relationship of structure-function design of geopolymer adsorbents were compared and ***,the challenge worth overcoming,the trends worth considering and perspectives worth developing are highlighted.

关键词： Geopolymer Wastewater Adsorption Structure-function design Application

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Performance Assessment on Corrosion Resistance of Refractory Materials Based on High-temperature Machine Vision Technology

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China's refractories 2024年第3期33卷 42-48页

作者： Chenchen LIU Ao HUANG Yan YU Guoping WEI Shenghao LI Huazhi GU The State key laboratory of refractories and Metallurgy Wuhan University of Science and TechnologyWuhan 430081China Zhejiang Zili High Temperature Technology Co. Ltd.Shaoxing 312300China

Refractory materials,as the crucial foundational materials in high-temperature industrial processes such as metallurgy and construction,are inevitably subjected to corrosion and penetration from high-temperature media during their ***,observing the in-situ degradation process of refractory materials in complex high-temperature environments has presented ***-corrosion analysis are commonly employed to assess the slag resistance of refractory materials and understand the corrosion ***,these methods often lack information on the process under the conditions of thermal-chemical-mechanical coupling,leading to potential biases in the analysis *** this work,we developed a non-contact high-temperature machine vision technology by the integrating Digital Image Correlation(DIC)with a high-temperature visualization system to explore the corrosion behavior of Al2O3-SiO2 refractories against molten glass and Al2O3-MgO dry ramming refractories against molten slag at different *** technology enables realtime monitoring of the 2D or 3D overall strain and average strain curves of the refractory materials and provides continuous feedback on the progressive corrosion of the materials under the coupling conditions of thermal,chemical,and mechanical ***,it is an innovative approach for evaluating the service behavior and performance of refractory materials,and is expected to promote the digitization and intelligence of the refractory industry,contributing to the optimization and upgrading of product performance.

关键词： refractory materials high-temperature machine vision Digital Image Correlation(DIC) corrosion resistance

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Effect of high magnetic field on the recovery of tempered martensite

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Progress in Natural Science:Materials International 2020年第1期30卷 134-137页

作者： Guanghui Wu Tingping Hou Zihua Li Long Chen Hengfu Lin Kaiming Wu The State key laboratory for refractories and Metallurgy Hubei Province Key Laboratory of Systems Science in Metallurgical ProcessWuhan University of Science and Technology

Influence of a 12 T high magnetic field on the recovery of tempered martensite in the chromium-containing steel was *** results showed that a high magnetic field caused the percentage of low angle boundaries θbetween 5°～8° to increase by about 8%,while correspondingly decreased the percentage of high angle boundaries(> 15°) by 9%.With the application of the magnetic field,the strain energy increased due to the higher density of free dislocations in the martensite,which leads to the retardation of recovery and little change in its lath shape due to the inhibition of the transition from low to high angle boundaries to maintain lower energy in the matrix.

关键词： High magnetic field Dislocations Grain boundaries Martensite Recovery

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Initiation and propagation of localized corrosion induced by(Zr,Ti,Al)-O_(x) inclusions in low-alloy steels in marine environment

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Journal of Iron and Steel Research International 2021年第4期28卷 453-463页

作者： Wen-zhui Wei Kai-ming Wu Jing Liu Lin Cheng Xian Zhang The State key laboratory of refractories and Metallurgy Hubei Province Key Laboratory of Systems Science in Metallurgical ProcessCollaborative Innovation Center for Advanced SteelsWuhan University of Science and TechnologyWuhan 430081HubeiChina

The effects of inclusions on localized corrosion of Zr–Ti deoxidized low-alloy steels in marine environment were investigated by various analytical techniques including scanning electron microscopy with X-ray microanalysis(SEM/EDS),confocal Raman microscopy(CRM),and in situ scanning vibrating electrode technique(SVET).It was found that complex(Zr,Ti,Al)-O_(x)inclusions were responsible for the initiation of localized *** corrosion pref-erentially occurred at Fe matrix adjacent to these inclusions and formed *** the early stage of corrosion,catalytic-occluded cells and the diffusion of chloride ions played a major role in the propagation of corrosion,further accelerating the dissolution of Fe matrix and(Zr,Ti,Al)-O_(x)*** SVET and CRM results,it revealed that the maximum anodic current density in local area gradually decreased with prolonged exposure time,indicating that corrosion products covered the steel surface and lowered the propagation rate of *** the later stage of corrosion,the barrier effect of corrosion products played an important role in inhibiting localized corrosion.

关键词： (Zr,Ti,Al)-O_(x)inclusion Localized corrosion Low-alloy steel Marine environment Scanning vibrating electrode technique

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Al^(3+) doped CeO_(2) for proton conducting fuel cells

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International Journal of Minerals,Metallurgy and Materials 2024年第10期31卷 2253-2262页

作者： Sarfraz Shahzad Rasool Muhammad Khalid MAKYousaf Shah Bin Zhu Jung-Sik Kim Muhammad Imran Asghar Nabeela Akbar Wenjing Dong Jiangsu Provincial key laboratory of Solar Energy Science and Technology/Energy Storage joint Research Center School of Energy and EnvironmentSoutheast UniversityNanjing 210096China School of Microelectronics Hubei UniversityWuhan 430062China Sino-French Engineer School/School of General Engineering Beihang UniversityBeijing 100191China Renewable Energy Technologies Group Faculty of Engineering and Natural SciencesTampere UniversityFI-33014Finland

Developing high ionic conducting electrolytes is crucial for applying proton-conducting fuel cell(PCFCs)*** cur-rent study investigates the effect of alumina on the structural,morphological,electrical,and electrochemical properties of CeO_(2).Lattice oxygen vacancies are induced in CeO_(2) by a general doping concept that enables fast ionic conduction at low-temperature ranges(300-500℃)for *** refinement of the X-ray diffraction(XRD)patterns established the pure cubic fluorite structure of Al-doped CeO_(2)(ADC)samples and confirmed Al ions’fruitful integration in the CeO_(2) *** electronic structure of the alumina-doped ceria of the materials(10ADC,20ADC,and 30ADC)has been *** a result,it was found that the best composition of 30ADC-based electrolytes induced maximum lattice oxygen *** corresponding PCFC exhibited a maximum power output of 923 mW/cm^(2)at 500℃.Moreover,the investigation proves the proton-conducting ability of alumina-doped ceria-based fuel cells by using an oxide ion-blocking layer.

关键词： proton ceramic fuel cells oxygen vacancies higher fuel cell performance doping fast ions transportation

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Magnetism and Transport Properties of HfFe_6Ge_6-type Er_(1-x)Gd_xMn_6Ge_6(x=0.2-0.9) Compounds

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Journal of Wuhan University of Technology(Materials Science) 2010年第3期25卷 415-418页

作者：汪汝武刘静 The hubei province key laboratory of refractories and ceramics Ministry-province jointly-Constructed Cultivation Base for State key laboratory hubei province key laboratory of Systems Science in Metallurgical Process College of Materials Science and Metallurgical Engineering Wuhan University of Science and Technology

Magnetic transitions and magnetotransport properties of polycrystalline Er1-xGdxMn6Ge6（x=0.2-0.9） compounds were *** magnetic and resistivity properties were analyzed in an applied magnetic field up to 5 *** is found that Er1-xGdxMn6Ge6（x=0.2-0.9） compounds displays a transition from the antiferromagnetic state to the ferrimagnetic state for increasing Gd *** Er1-xGdx Mn6Ge6 with x=0.2 and 0.5 compounds order antiferromagnetically at 430 and 432 K,*** Er1-x GdxMn6Ge6 with x=0.8 and 0.9 compounds order ferrimagnetically at 462 and 471 K,*** Er1-xGdxMn6Ge6 compounds undergo the second transitions below 71 *** magnetoresistance curves of the Er0.1Gd0.9Mn6Ge6 compound in a field of 5 T are presented and the magnetoresistance effects are related to the metamagnetic transitions.

关键词： HfFe6Ge6 magnetism magnetoresistance effect

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Preparation, characterization and catalytic performance of single-atom catalysts

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Chinese Journal of Catalysis 2017年第9期38卷 1528-1539页

作者： Liqiong Wang Liang Huang Feng Liang Simin Liu Yuhua Wang Haijun Zhang The State key laboratory of refractories and Metallurgy Wuhan University of Science and Technology Wuhan 430081 Hubei China School of Chemistry and Chemical Engineering Wuhan University of Science and Technology Wuhan 430081 Hubei China hubei province key laboratory of Science in Metallurgical Process Wuhan University of Science and Technology Wuhan 430081 Hubei China

Supported and colloidal single‐atom catalysts(SACs),which possess excellent catalytic properties,are particularly important in both fundamental studies and practical *** progress made in the preparation methods,characterization,catalytic performances and mechanisms of SACs anchored to metal oxides,two‐dimensional materials and the surface of metal nanoclusters(NCs)are *** different techniques for SAC fabrication,including conventional solution methods based on co‐precipitation,incipient wetness co‐impregnation,and the chemical vapor deposition method,as well as the newer atom layer deposition(ALD)and galvanic replacement methods,are *** main results from experimental and theoretical studies of various catalytic reactions over SACs,including oxidation reactions,hydrogenation,water gas shift,photocatalytic H2evolution and electrochemical reactions,are also ***,the electronic properties of the single atoms and their interactions with the supports are described to assist in understanding the origin of the high catalytic activity and selectivity of ***,possible future research directions of SACs and their applications are proposed.

关键词： Single atom catalyst Preparation method Catalytic activity Characterization Electronic properties

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Robust tantalum tuned perovskite oxygen electrode for reversible protonic ceramic electrochemical cells

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Rare Metals 2024年第7期43卷 3055-3065页

作者： Yu-Shi Feng Yu Shen Fang Wang Chuan Tian Qin-Yi Hu Qian Duan Jing-Wei Li Di Bao School of Materials Science and Engineering Changchun University of Science and TechnologyChangchun 130022China Zhongshan Institute of Changchun University of Science and Technology Zhongshan528437China State key laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of SciencesChangchun 130022China key laboratory of Preparation and Applications of Environmental Friendly Materials Ministry of EducationJilin Normal UniversityChangchun 130103China

Perovskite oxides with diverse composition and structure have exhibited grand advances in boosting the oxygen reduction and evolution reaction(ORR/OER),which are essential for the reversible protonic ceramic electrochemical cell(R-PCEC)toward the sustainable hydrogen production and ***,enhancement of their activity and stability remains ***,we develop the Ta-regulated BaCo_(0.7)Fe_(0.3)O_(3-δ)perovskite oxygen electrode(Ba(Co_(0.7)Fe_(0.3))_(1-x)Ta_xO_(3-δ))with abundant oxygen defects and achieve the simultaneous enhancement in the electrocatalytic activity and stability toward ORR and ***-fabricated R-PCEC with(Ba(Co_(0.7)Fe_(0.3))_(0.9)Ta_(0.1)O_(3-δ))(BCFT10)oxygen electrode performs high power density of 1.47 W·cm^(-2)at 650℃in fuel cell mode,and the current density is up to-2.11 A·cm^(-2)at 1.4 V at 650℃in electrolysis mode,as well as the good stability in both the fuel cell and electrolysis ***,the cell also demonstrates a stable cycling operation between fuel cell and electrolysis mode,suggesting a great potential of BCFT10 as oxygen electrode material for R-PCECs.

关键词： Reversible protonic ceramic electrochemical cells Perovskite oxide Oxygen electrode Ta element doping Oxygen defects

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非晶玻璃中力诱导-水分介导CsPbBr3纳米晶化（英文）

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Science China Materials 2024年第10期67卷 3106-3114页

作者：高鹏林航王鹏飞刘明徐桔程遥王元生 State key laboratory of Structural Chemistry Key Laboratory of Optoelectronic Materials Chemistry and Physics Key Lab Design & Assembly Funct Nanostruct Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences University of Chinese Academy of Sciences Fujian Science & Technology Innovation laboratory for Optoelectronic Information of China Fujian Provincial key laboratory of Terahertz Functional Devices and Intelligent Sensing School of Mechanical Engineering and Automation Fuzhou University

虽然“非晶到晶体”的相变过程已经被广泛研究,但迄今为止,我们对涉及纳米尺度上的微观机制仍不完全了解.与常见的热处理玻璃诱导析晶过程不同,我们在含Cs-Pb-Br组分的磷酸盐玻璃体系中发现了一种通过力诱导-湿度介导的特殊析晶机制.研... 详细信息

虽然“非晶到晶体”的相变过程已经被广泛研究,但迄今为止,我们对涉及纳米尺度上的微观机制仍不完全了解.与常见的热处理玻璃诱导析晶过程不同,我们在含Cs-Pb-Br组分的磷酸盐玻璃体系中发现了一种通过力诱导-湿度介导的特殊析晶机制.研究表明,剪切力作用下,玻璃网络被破坏,产生了高能位点,这些高能位点吸收来自环境湿气的H2O分子/团簇,随后玻璃组分的水化过程促进了CsPbBr3纳米晶的析出.微观力学检测结合共聚焦激光扫描显微成像技术,揭示CsPbBr3纳米晶的分布几乎复现了局域应力场的分布,并清晰地反映了裂纹扩展的传播路径.这一特殊的晶化机制,进一步验证了钙钛矿玻璃在力传感和湿度传感方面的潜在新应用.本工作为了解玻璃中晶体的形核/生长以及了解玻璃脆性断裂过程中裂纹的传播动力学提供了独特的视角.

关键词： luminescence glass ceramic crystallization optical materials optical sensing CsPbBr3 perovskite

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Biomimetic design of highly flexible metal oxide nanofibrous membranes with exceptional mechanical performance for superior phosphopeptide enrichment

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Nano Research 2024年第5期17卷 4270-4278页

作者： Xue Mao Zhen-Zhen Li Dong-Lian Hao Wei-Dong Han Gao-Peng Li Yao-Yu Wang Kun Zhang School of Textile Science and Engineering Key Laboratory of Functional Textile Material and Product(Ministry of Education)Xi’an Polytechnic UniversityXi’an 710048China key laboratory of Magnetic Molecules&Magnetic Information Materials of the Ministry of Education School of Chemistry&Material ScienceShanxi Normal UniversityTaiyuan 030031China Department of Clinical laboratory The Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710004China Shanghai iProteome Biotechnology Co. LtdShanghai 201210China College of Chemistry&Materials Science Northwest UniversityXi'an 710127China

Developing free-standing and mechanical robust membrane materials capable of superior enrichment of phosphopeptides for analyzing and identifying the specific phosphoproteome of cancer cells is significant in understanding the molecular mechanisms of cancer development and exploring new therapeutic approaches,but still a significant challenge in materials *** this end,we firstly constructed highly flexible ZrTiO_(4) nanofibrous membranes(NFMs)with excellent mechanical stability through a cost-effective and scalable electrospinning and subsequent calcination ***,to further increase the enrichment capacity of the phosphopeptide,the biomimetic TiO_(2)@ZrTiO_(4) NFMs with root hair or leaf like branch microstructure are developed by the hydrothermal post-synthetic modification of ZrTiO_(4) NFMs through growing unfurling TiO_(2) nanosheets onto the ZrTiO_(4) ***,remarkable flexibility and mechanical stability enable the resulting TiO_(2)@ZrTiO_(4) NFMs excellent practicability,while the biomimetic microstructure allows it outstanding enrichment ability of the phosphopeptide and identification ability of the specific phosphoproteins in the digest of cervical cancer ***,6770 phosphopeptides can be enriched by TiO_(2)@ZrTiO_(4) NFMs(2205 corresponding phosphoproteins can be identified),and the value is much higher than that of ZrTiO_(4) NFMs(6399 phosphopeptides and 2132 identified phosphoproteins)and commercial high-performance TiO_(2) particles(4525 phosphopeptides and 1811 identified phosphoproteins).These results demonstrate the super ability of TiO_(2)@ZrTiO_(4) NFMs in phosphopeptide enrichment and great potential for exploring the pathogenesis of cancer.

关键词： inorganic nanofibers flexible ceramic nanofibrous membranes biomimetic materials exceptional mechanical performance flexibility

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