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Recent achievements in selenium-based transition metal electrocatalysts for pH-universal water splitting

Nano Research 2024年第7期17卷 5763-5785页

作者： Yuwei Jiang Sanshuang Gao Xijun Liu Yin Wang Shuxing Zhou Qian Liu Abdukader Abdukayum Guangzhi Hu Xinjiang Key Laboratory of Novel Functional Materials Chemistry College of Chemistry and Environmental SciencesKashi UniversityKashi 844000China Institute for Ecological Research and Pollution Control of Plateau Lakes School of Ecology and Environmental ScienceYunnan UniversityKunming 650504China MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured MaterialsGuangxi UniversityNanning 530004China Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices Hubei University of Arts and ScienceXiangyang 441053China Institute for Advanced Study Chengdu UniversityChengdu 610106China

The electrolysis of water to produce hydrogen is an important technique to replace traditional fossil fuel-based hydrogen *** method efficiently converts electrical energy into chemical energy,it is ostensibly a promising candidate for addressing the energy *** effort has been devoted to developing efficient electrocatalysts for water *** exploration of suitable catalytic materials for the hydrogen evolution reaction(HER),oxygen evolution reaction(OER),and other bifunctional electrocatalytic reactions is *** metal selenides(TMSes)have emerged as potential HER and OER electrocatalysts because of their unique electronic structures,which are beneficial for charge transfer,tuneable bandgaps,distinctive morphologies,and *** review discusses the mechanisms and performance comparisons of TMSes in overall water splitting under various pH *** an industrial and commercial perspective,the catalytic performance of TMSes for the HER and OER is not *** for preparing electrocatalytic materials and optimizing materials for overall water decomposition and modulation mechanisms have been introduced to improve electrocatalytic performance,such as element doping,carbon composites,bimetallic systems,morphology control,and heterogeneous interface ***,the challenges and prospects of TMSes were discussed.

关键词： hydrogen energy source electrocatalysis water splitting selenium-based materials transition metal

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Insights on advanced g‐C_(3)N_(4)in energy storage:Applications,challenges,and future

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Carbon Energy 2024年第4期6卷 22-78页

作者： Xiaojie Yang Jian Peng Lingfei Zhao Hang Zhang Jiayang Li Peng Yu Yameng Fan Jiazhao Wang Huakun Liu Shixue Dou School of Nuclear Technology and Chemistry&Biology Hubei Key Laboratory of Radiation Chemistry and Functional MaterialsHubei University of Science and TechnologyXianningChina Institute for Superconducting and Electronic Materials Australian Institute for Innovative MaterialsUniversity of WollongongNorth WollongongNew South WalesAustralia State Key Laboratory of Material Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhanChina Institute of Energy Materials Science University of Shanghai for Science and TechnologyShanghaiChina

Graphitic carbon nitride(g‐C_(3)N_(4))is a highly recognized two‐dimensional semiconductor material known for its exceptional chemical and physical stability,environmental friendliness,and pollution‐free *** remarkable properties have sparked extensive research in the field of energy *** review paper presents the latest advances in the utilization of g‐C_(3)N_(4)in various energy storage technologies,including lithium‐ion batteries,lithium‐sulfur batteries,sodium‐ion batteries,potassium‐ion batteries,and *** of the key strengths of g‐C_(3)N_(4)lies in its simple preparation process along with the ease of optimizing its material *** possesses abundant amino and Lewis basic groups,as well as a high density of nitrogen,enabling efficient charge transfer and electrolyte solution ***,the graphite‐like layered structure and the presence of largeπbonds in g‐C_(3)N_(4)contribute to its versatility in preparing multifunctional materials with different dimensions,element and group doping,and conjugated *** characteristics open up possibilities for expanding its application in energy storage *** article comprehensively reviews the research progress on g‐C_(3)N_(4)in energy storage and highlights its potential for future applications in this *** exploring the advantages and unique features of g‐C_(3)N_(4),this paper provides valuable insights into harnessing the full potential of this material for energy storage applications.

关键词： g‐C_(3)N_(4) lithium‐ion batteries lithium‐sulfur batteries potassium‐ion batteries sodium‐ion batteries supercapacitors

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Application of photocrosslinkable hydrogels based on photolithography 3D bioprinting technology in bone tissue engineering

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Regenerative Biomaterials 2023年第1期10卷 904-918页

作者： Jianpeng Gao Xiao Liu Junyao Cheng Junhao Deng Zhenchuan Han Ming Li Xiumei Wang Jianheng Liu Licheng Zhang Department of Orthopaedics Chinese PLA General HospitalBeijing 100036China Chinese PLA Medical School Beijing 100036China State Key Laboratory of New Ceramics and Fine Processing Key Laboratory of Advanced Materials of Ministry of EducationSchool of Materials Science and EngineeringTsinghua UniversityBeijing 100084China

Bone tissue engineering(BTE)has been proven to be an effective method for the treatment of bone defects caused by different musculoskeletal *** hydrogels(PCHs)with good biocompatibility and biodegradability can significantly promote the migration,proliferation and differentiation of cells and have been widely used in ***,photolithography 3D bioprinting technology can notably help PCHs-based scaffolds possess a biomimetic structure of natural bone,meeting the structural requirements of bone ***,cells,drugs and cytokines added into bioinks can enable different functionalization strategies for scaffolds to achieve the desired properties required for *** this review,we demonstrate a brief introduction of the advantages of PCHs and photolithography-based 3D bioprinting technology and summarize their applications in ***,the challenges and potential future approaches for bone defects are outlined.

关键词： photocrosslinkable hydrogels photolithography 3D bioprinting bone tissue engineering bone regeneration bone defect

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Reducing Cyclic Prefix Overhead Based on Symbol Repetition in NB-IoT-Based Maritime Communication

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China Communications 2022年第9期19卷 1-9页

作者： Tian Xiang Daiming Qu Faquan Zhang Dejin Kong School of Electronic and Electrical Engineering Wuhan Textile UniversityWuhan 430200China Sthe State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200China School of Electronic Information and Communication Huazhong University of Science and TechnologyWuhan 430074China

With the increasing maritime activities,a great demand of wide-area maritime digital data services is ***,Narrowband Internet of Things(NB-IoT)that can provide wide coverage has been expected as an application for maritime communication networks(MCNS).In this paper,we aim to enhance the spectral efficiency in NB-IoT by reducing the cyclic prefix(CP)overhead in random access signal without causing *** key point of the proposed scheme is the symbols transmitted for multiple times repeatedly in ***,all CP are removed and multi-path fading effect is eliminated by using a repeated symbol to cover the disturbed symbol to construct a circular convolution structure of the channel with the same effect as adding *** addition,a single-tap equalization is still *** validate the effectiveness of the proposed scheme,simulation results are carried out with respect to the bit error ratio(BER).

关键词： NB-IoT narrowband physical random access channel cyclic prefix spectral efficiency

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Aligne d nanofib ers incorporate d composite solid electrolyte for high-sensitivity oxygen sensing at medium temperatures

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Journal of materials Science & technology 2024年第14期181卷 189-197页

作者： Mengfei Zhang Lei Yao Yan Xing Jing Cheng Tianrang Yang Jianguo Liu Wei Pan Institute of Energy Power Innovation North China Electric Power UniversityBeijing 102206China State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China Shenzhen Key Laboratory of Special Functional Materials Shenzhen Engineering Laboratory for Advanced Technology of CeramicsGuangdong Research Center for Interfacial Engineering of Functional MaterialsCollege of Materials Science and EngineeringShenzhen UniversityShenzhen 518060China New Energy Technology Engineering Lab of Jiangsu Province School of ScienceNanjing University of Posts&Telecommunications(NUPT)Nanjing 210003China

otentiometric oxygen sensors have been widely used in internal combustion engines,industrial boilers,and metallurgical heat treatment ***,traditional oxygen sensors based on yttria-stabilized zirconia(YSZ)electrolyte can only be operated at elevated temperatures(>750℃)due to their rela-tively low ionic *** this study,we present a highly efficient micro-oxygen sensor that can be operated at a temperature as low as 300℃.This micro-oxygen sensor incorporates a composite solid electrolyte,i.e.,well-aligned gadolinium-doped cerium oxide(CGO)nanofibers embedded within a YSZ matrix(YSZ/CGO_(f)).The arrays of CGO nanofibers in the YSZ matrix are parallel to the conduction direc-tion,providing rapid conducting channels for oxygen *** from this design,the composite electrolyte leads to a conductivity of four times higher than that of traditional YSZ solid electrolytes at low *** enhancement in conductivity is attributed to the presence of a defective interfacial region between CGO_(f)and YSZ,which promotes the mobility of oxygen *** strategy of constructing fast ionic conduction in the composite electrolyte by using well-aligned nanofibers may be considered for the design and optimization of other micro/nano-devices including sensors,batteries,and fuel cells.

关键词： Oxygen sensor Nanofibers Composite electrolyte Ionic conduction

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Crystalline@amorphous core-shell structure of WO3@WO_(3-x)S_(x) established via doping strategy for enhancing magnesium ions storage performance

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Journal of Magnesium and Alloys 2025年第3期13卷 1353-1363页

作者： Shiqi Ding Yuxin Tian Jiankang Chen Guofeng Wang Bing Sun He Lv Lei Wang Guicun Li Alan Meng Zhenjiang Li College of Materials Science and Engineering Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life ScienceMOEShandong Key Laboratory of Biochemical AnalysisCollege of Chemistry and Molecular EngineeringQingdao University of Science and TechnologyQingdao 266042ShandongPR China Qingdao Engineering Research Center for New Metallic Functional Materials Characteristic Laboratory of Advanced Metal Functional Materials and Processing in Universities of ShandongQingdao Binhai UniversityQingdao 266555ShandongPR China

Designing cathode possessing crystalline@amorphous core-shell structure with both active core and shell is a meaningful work for resolving the low speciﬁc capacity,unstable cycling performance and sluggish reaction kinetics issues of rechargeable magnesium batteries(RMBs)by providing more active sites as well as releasing inner stress during ***,WO_(3)@WO_(3-x)S_(x) owning crystalline@amorphous core-shell structure containing both active core and active shell is constructed successfully by introducing S into metastable WO3 structure under temperatureﬁeld *** such structure,amorphous shell would provide continuous Mg^(2+)diffusion channels due to its isotropy property for most Mg^(2+)migrating rapidly to interface and then adsorb at ions reservoir formed by interfacial electricﬁeld for increasing speciﬁc *** also makes security for stable structure of WO_(3)@WO_(3-x)S_(x) by alleviating volume expansion of crystalline core WO_(3) during cycling to prolong cycling ***,“softer”ions S^(2-)would weaken interaction between hard acid Mg^(2+) and ionic lattice to enhance Mg^(2+)storage ***,WO_(3)@WO_(3-x)S_(x) delivers the superior cycling performance(1000 cycles with 83.3%),rate capability(88.5 mAh g^(-1) at 1000 mA g^(-1))and speciﬁc capacity(about 150 mAh g^(-1) at 50 mA g^(-1)),which is near 2 times higher than that of *** is believed that the crystalline@amorphous core-shell structure with both active core and shell designing via doping strategy is enlightening for the development of high-performance RMBs,and such design can be extended to other energy storage devices for better electrochemical performance.

关键词： Doping Sulfuration Crystalline@amorphous core-shell structure WO_(3) Rechargeable magnesium batteries

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用于电热转换、电磁屏蔽的导电陶瓷的简易大规模制备

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Engineering 2023年第2期21卷 143-151,M0006页

作者：李岱祺唐彬程德山吴静唐文杨赵仲李建强蔡光明王金凤王训该 State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200China Institute for Frontier Materials Deakin UniversityMelbourne/GeelongVIC 3216Australia

通过传统瓷砖制备工艺的干压法,制备了一种碳化酚醛树脂基导电陶瓷复合材料(CCC)。首先,将导电前驱体溶液(酚醛树脂)与陶瓷前驱体均匀混合,随后在单次热处理中同时实现了碳化和陶瓷化。碳化后的材料赋予复合材料出色的电导率和可靠的循... 详细信息

通过传统瓷砖制备工艺的干压法,制备了一种碳化酚醛树脂基导电陶瓷复合材料(CCC)。首先,将导电前驱体溶液(酚醛树脂)与陶瓷前驱体均匀混合,随后在单次热处理中同时实现了碳化和陶瓷化。碳化后的材料赋予复合材料出色的电导率和可靠的循环加热特性。在12 V电压下通电10 min后材料表面温度可达386℃,在20 V电压下达到400℃仅需48 s。红外热像图表明,热量在复合材料表明分布均匀,并且可以通过更改电路布置(串联或并联)来调节电热转换性能。此外,与普通陶瓷相比,导电陶瓷复合材料在8.2 GHz下表现出了26.2 dB的优异电磁屏蔽性能,并提升了光热转换性能。更重要的是,这种单次热处理加热生产导电陶瓷复合材料的方法成本较低,可在原有瓷砖生产线的基础上进行大规模生产。出色的电学性能促进了该陶瓷复合材料在焦耳加热中的应用(如除冰、烧水和烹饪)及电磁屏蔽领域的应用。

关键词：陶瓷复合材料电学性能电磁屏蔽红外热像图导电陶瓷陶瓷前驱体大规模制备焦耳加热

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Unprecedented strong and reversible atomic orbital hybridization enables a highly stable Li-S battery

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国家科学评论（英文版） 2022年第7期9卷 109-119页

作者： Min Yan Wenda Dong Fu Liu Lihua Chen Tawfique Hasan Yu Li Bao-Lian Su State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Hubei Key Laboratory of Plasma Chemistry and Advanced Materials Hubei Engineering Technology Research Center of Optoelectronic and New Energy MaterialsSchool of Materials Science and EngineeringWuhan Institute of TechnologyWuhan 430205China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China School of Materials Science and Engineering Zhejiang UniversityHangzhou 310027China Cambridge Graphene Centre University of CambridgeCambridge CB3 OFAUK State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Laboratory of Inorganic Materials Chemistry(CMI) University of NamurNamur B-50000 Belgium

The shuttle effect and excessive volume change of the sulfur cathode severely impede the industrial implementation of Li-S *** is still highly challenging to find an efficient way to suppress the shuttle effect and volume ***,we report,for the first time,an innovative atomic orbital hybridization concept to construct the hierarchical hollow sandwiched sulfur nanospheres with double-polyaniline layers as the cathode material for large-scale high-performance Li-S *** hierarchically 3D,cross-linked and stable sulfur-polyaniline backbone with interconnected disulfide bonds provides a new type and strong intrinsic chemical confinement of sulfur owing to the atomic orbital hybridization of Li 2s,S 3p,C 2p and N ***,such atomic orbital hybridization of sulfur sandwiched in the double sulfur-polyaniline network is highly reversible during the discharge/charge process and can very efficiently suppress the shuttle effect and volume expansion,contributing to a very high capacity of 1142 mAh g-1 and an excellent stabilized capacity of 886 mAh g-1 at 0.2 C after 500 cycles with a suppressed volume expansion and an unprecedented electrode *** innovative atomic orbital hybridization concept can be extended to the preparation of other electrode materials to eliminate the shuttle effect and volume expansion in battery *** present work also provides a commercially viable and up-scalable cathode material based on this strong and highly reversible atomic orbital hybridation for large-scale high-performance Li-S batteries.

关键词： atomic orbital hybridization hierarachical hollow sandwiched sulfur nanosphere double sulfur–polyaniline networks lithium–sulfur batteries insitu vulcanization

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Investigation on the temperature-dependent diffusion growth of intermetallic compounds in the Mg-Al-Zn system:Experiment and modeling

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Journal of Magnesium and Alloys 2024年第8期12卷 3394-3408页

作者： Kaiming Cheng Yan Zheng Jiaxing Sun Yafei Zhao Jin Wang Huan Yu Dongqing Zhao Hang Li Jixue Zhou Zhenyu Ma Junmin Wang Cuiping Guo Xitao Wang Lijun Zhang Yong Du Shandong Provincial Key Laboratory of High Strength Lightweight Metallic Materials Advanced Materials InstituteQilu University of Technology(Shandong Academy of Sciences)Jinan250014China Laboratory of Materials Phase Equilibria and New Materials Design School of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing 100083China Technology R&D Center Shandong Qiangang Metal Technology Co.LtdJining272000China State Key Laboratory of Powder Metallurgy Central South UniversityChangsha410083China

With the rapid development of Mg alloys,deeper understanding to the thermodynamic and diffusional kinetic behavior of intermetallic compounds(IMCs)is important for studying the effect of alloying elements to the microstructure ***,a systematic quantitative investigation on the diffusional growth of IMCs is of great ***,the works studying the elemental diffusion behaviors of multiple-element IMCs are rare in magnesium alloy *** current work takes the ternary Mg-Al-Zn system as research target,and combines the diffusion couple technique,phase stability diagrams,in-situ observation technique and numerical inverse method to investigate the temperature-dependent kinetic *** parabolic growth constant(PGC)and interdiffusion coefficients for Mg solid-solution phase andγ-Mg_(17)Al_(12),β-Mg_(2)Al_(3),ε-Mg_(23)Al_(30),MgZn_(2),Mg_(2)Zn_(3),τ-Mg_(32)(Zn,Al)49 andφ-Mg_(5)Zn_(2)Al_(2) IMCs in the Mg-Al-Zn alloy system are *** comparing the current experimental with calculation results,the rate-controlling factor of the temperature-dependent diffusion growth ofφ,τandεternary IMCs in the Mg-Al-Zn system is further discussed in detail.

关键词： Diffusion couple Phase stability diagram Numerical inverse method(NIM) Interface migration High-temperature laser-scanning confocal microscopy(HTLSCM)

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Evolutions of mechanical and thermal properties of TmNbO_(4)/Tm_(3)NbO_(7) composites as protective coating materials

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Journal of advanced Ceramics 2024年第11期13卷 1771-1785页

作者： Jiankun Wang Lin Chen Baihui Li Hao Xu Xiang Jiang Jing-Feng Li Jing Feng Faculty of Materials Science and Engineering Kunming University of Science and TechnologyKunming 650093China Southwest United Graduate School Kunming 650092China State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China

High fracture toughness,low thermal conductivity,and thermal expansion coefficient(TEC)matching substrate are essential for thermal barrier coatings(TBCs)and abradable seal coatings(ASCs).In this work,TmNbO_(4)/Tm_(3)NbO_(7) composites are designed and synthesized to increase their fracture toughness(KIC)and thermal insulation *** with those of TmNbO_(4)(KIC=2.2±0.1 MPa·m^(1/2))and Tm_(3)NbO_(7)(KIC=1.7±0.2 MPa·m^(1/2)),the increments in fracture toughness are as high as 50.0%and 91.1%,*** highest toughness reaches 3.3±0.4 MPa·m^(1/2),which is attributed to the superior combination of grains between TmNbO_(4) and Tm_(3)NbO_(7),as well as the simultaneous effects of microcracks and crack bridging and *** estimation of the effect of the interfacial thermal resistance on the thermal conductivity at low temperatures was achieved using the minimum interfacial thermal resistance model.A novel method is proposed to inhibit radiative heat transfer by utilizing oxides with glass-like thermal conductivity to suppress thermal ***,the TmNbO_(4)/Tm_(3)NbO_(7) composite maintains a low thermal conductivity(1.19–2.02 W·m^(−1)·K^(−1))at 1000°*** high TECs(10.4×10^(−6)–11.8×10^(−6)·K^(−1) at 1500°C)and excellent high-temperature stability ensure that the designed TmNbO_(4)/Tm_(3)NbO_(7) composites can be used at temperatures reaching 1500°***,simultaneous enhancement of fracture toughness and thermal insulation in TmNbO_(4)/Tm_(3)NbO_(7) composites is effective,and the revealed mechanisms are useful for various materials.

关键词： thermal barrier coatings(TBCs) toughening mechanisms composites thermal conductivity thermal expansion thermal radiation

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