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| 1 | Hierarchically structured porous materials: synthesis strategies and applications in energy storage显示文摘To address the growing energy demands of sustainable development,it is crucial to develop new materials that can improve the efficiency of energy storage systems.Hierarchically structured porous materials have shown their great potential for energy storage applications owing to their large accessible space,high surface area,low density,excellent accommodation capability with volume and thermal variation,variable chemical compositions and well controlled and interconnected hierarchical porosity at different length scales.Porous hierarchy benefits electron and ion transport;and mass diffusion and exchange.The electrochemical behavior of hierarchically structured porous materials varies with different pore parameters.Understanding their relationship can lead to the defined and accurate design of highly efficient hierarchically structured porous materials to enhance further their energy storage performance.In this review,we take the characteristic parameters of the hierarchical pores as the survey object to summarize the recent progress on hierarchically structured porous materials for energy storage.This is the first of this kind exclusively to survey the performance of hierarchically structured porous materials from different porous characteristics.For those who are not familiar with hierarchically structured porous materials,a series of very significant synthesis strategies of hierarchically structured porous materials are firstly and briefly reviewed.This will be beneficial for those who want to quickly obtain useful reference information about the synthesis strategies of new hierarchically structured porous materials to improve their performance in energy storage.The effect of different organizational,structural and geometric parameters of porous hierarchy on their electrochemical behavior is then deeply discussed.We outline the existing problems and development challenges of hierarchically structured porous materials that need to be addressed in renewable energy applications.We hope that this review can stimulate strong intuition into the design and application of new hierarchically structured porous materials in energy storage and other fields. | Liang Wu Yu Li Zhengyi Fu Bao-Lian Su | 2020 | National Science Review2020，7，11： | 9 |
| 2 | Self-supported high-entropy alloy electrocatalyst for highly efficient H_(2) evolution in acid condition显示文摘Developing non-precious catalysts as Pt substitutes for electrochemical hydrogen evolution reaction(HER)with superior stability in acidic electrolyte is of critical importance for large-scale,low-cost hydrogen production from water.Herein,we report a CoCrFeNiAl high-entropy alloy(HEA)electrocatalyst with self-supported structure synthesized by mechanical alloying and spark plasma sintering(SPS)consolidation.The HEA after HF treatment and in situ electrochemical activation for 4000 cycles of cyclic voltammetry(HF-HEAa2)presents favourable activity with overpotential of 73 mV to reach a current density of 10 mA cm^(2) and a Tafel slope of 39.7 mV dec1.The alloy effect of Al/Cr with Co/Fe/Ni at atomic level,high-temperature crystallization,as well as consolidation by SPS endow CoCrFeNiAl HEA with high stability in 0.5 M H2SO4 solution.The superior performance of HF-HEAa2 is related with the presence of metal hydroxides/oxides groups on HEA. | Peiyan Ma Mingming Zhao Long Zhang Heng Wang Junfeng Gu Yuchen Sun Wei Ji Zhengyi Fu | 2020 | Journal of Materiomics2020，6，4： | 8 |
| 3 | Preparation of Nano-sized Zirconium Carbide Powders through a Novel Active Dilution Self-propagating High Temperature Synthesis Method显示文摘High quality nano-sized zirconium carbide(Zr C) powders were successfully fabricated via a developed chemical active dilution self-propagating high-temperature synthesis(SHS) method assisted by ball milling pretreatment process using traditional cheap zirconium dioxide powder(ZrO2), magnesium powder(Mg) and sucrose(C12H22O11) as raw materials. FSEM, TEM, HRTEM, SAED, XRD, FTIR and Raman, ICPAES, laser particle size analyzer, oxygen and nitrogen analyzer, carbon/sulfur determinator and TG-DSC were employed for the characterization of the morphology, structure, chemical composition and thermal stability of the as-synthesized ZrC samples. The as-synthesized samples demonstrated high purity, low oxygen content and evenly distributed Zr C nano-powders with an average particle size of 50 nm. In addition, the effects of endothermic rate and the possible chemical reaction mechanism were also discussed. | 达奥运 龙飞 WANG Jilin XING Weihong WANG Yang ZHANG Fan 王为民 FU Zhengyi | 2015 | Journal of Wuhan University of Technology(Materials Science)2015，30，4： | 5 |
| 4 | In-situ synthesis and sintering of mullite glass composites by SPS显示文摘The main subject of this work is an investigation of the effects of heating rate and current on the crystallisation of amorphous precursors in spark plasma sintering(SPS).For this,dry gel of Al_(2)O_(3)-SiO_(2) with a molar ratio of 1:1,was synthesized and sintered in-situ by SPS,and also by hot pressing(HP)for comparison.Phase analysis showed that the only crystalline product in both cases was mullite,whose Al_(2)O_(3) content was lower in the SPS specimens.The microstructures showed a low volume fraction of large mullite fibers in the SPS specimens,whereas a high volume fraction of fine equiaxed grains was present in the HP specimen.The main difference in microstructure between HP and SPS specimens could be explained in terms of the higher heating rate of the SPS specimens.The size of the SPS die also affected the size and aspect ratio of the mullite fibers produced,which might have been due to either the different electrical current required or a difference in specimen temperature profile. | Jinyong ZHANG Hai ZHAN Zhengyi FU Richard TODD | 2014 | Journal of Advanced Ceramics2014，3，2： | 4 |
| 5 | Microstructure and Temperature Distribution in ZnAl_2O_4 Sintered Body by Pulse Electric Current显示文摘Microstructure of reaction sintering of ZnAl2O4 at 1500℃ by hot-pressing(HP) and pulse electric current was investigated. The results indicated that the existed cracks in sintered body were caused by structure mismatch. lt is the evidence that periodical temperature field existed during pulse electric current sintering of nonconductive materials.The distance between high temperature areas was related to die diameter. | Dongming ZHANG, Zhengyi FU and Jingkun GUOState Key Lab. of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China | 2003 | Journal of Materials Science & Technology2003，19，6： | 3 |
| 6 | Ultra-fast densification of CNTs reinforced alumina based on combustion reaction and quick pressing显示文摘An ultra-fast densification method based on high heating rate from the combustion reaction for producing carbon nanotubes(CNTs) reinforced alumina ceramics is reported.The heat generated by combustion reaction is adopted to act as a high temperature source to the sample,which results in a heating rate of 1660°C/min of the sample.Then a great mechanical pressure is applied to the sample when the sample gets the expected temperature.The densification process is finished in several minutes.The results indicate that the densification method is beneficial to protect the CNTs from destruction and creates good interfacial combination between the nanotubes and the matrix.With the addition of 1 wt% CNTs,the fracture toughness of the ceramics prepared increases about 50%. | FU ZhengYi HUANG LiWei ZHANG JinYong TODD Richard | 2012 | Science China(Technological Sciences)2012，55，2： | 3 |
| 7 | Microstructural evolution and mechanism of grain growth in magnesia ceramics prepared by high pressure and temperature with ultra-high heating rate显示文摘The fast densification method of combustion reaction plus quick pressing was adopted to prepare nanocrystalline ceramics.The densification process of magnesia compact with a particle size of 100 nm was investigated,under the applied pressure of up to 170 MPa,and the temperature range of 1740–2080 K with ultra-high heating rate(above 1700 K/min).High-purity magnesia ceramics with a relative density of 98.8%and an average grain size of 120 nm was obtained at 1740 K,and the grain growth during the densification process was effectively restrained.The characteristic morphology of evaporation-condensation was observed in the compact prepared at 2080 K,which revealed the actual process of mass transfer by gas diffusion.Moreover,the investigation on the microstructure evolution and mechanism of grain growth was carried out,on the basis of as-preserved nanocrystalline ceramics.The result indicated that the grain growth of the nanocrystalline MgO was controlled by the mechanism of evaporation-condensation rather than surface diffusion.Furthermore,the pressure had an influence of restraining the grain growth based on solid diffusion and strengthening the effect of gas diffusion with the increasing temperature.Under the particular conditions,there existed an appropriate temperature for the densification of nanocrystalline magnesia,while the excessive temperature would exaggerate grain growth and impede densification. | LIU JiangHao FU ZhengYi WANG WeiMin ZHANG JinYong WANG Hao WANG YuCheng LEE SooWohn NIIHARA Koichi | 2014 | Science China(Technological Sciences)2014，57，6： | 3 |
| 8 | High-pressure Sintering of Boron Carbide-Titanium Diboride Composites and Its Densification Mechanism显示文摘A high-pressure hot-pressing process was applied to densify a commercial boron carbide-titanium diboride (B4C-TiB2) powder mixture.Nearly fully dense (98.6%) materials were obtained at 1700℃ under a pressure of 100MPa.Compared to the sintering temperature required to achieve similar results when a pressure of only 30MPa was applied,the sintering temperature was found to decrease by about 200℃ under pressure of 100 MPa.Analysis of the thermodynamics and microstructure showed that the plastic deformation of the B4C grains induced by high pressure dominated the densification mechanism when high pressure was applied.Furthermore,higher pressure resulted in remarkably improved mechanical properties of the composites,which could be traced back to the generation of stacking faults in the B4C grains and aggregation of TiB2. | GAO Jiancheng WANG Dangqiang LEI Liwen ZHANG Fan ZHANG Jinyong FU Zhengyi | 2020 | Journal of Wuhan University of Technology(Materials Science)2020，35，2： | 2 |
| 9 | Reactive sintering of B4C-TaB2 ceramics via carbide boronizing:Reaction process, microstructure and mechanical properties显示文摘Carbide boronizing is a promising approach to obtain fine grained boron carbide based ceramics with improved mechanical properties. In this work, reaction process, microstructural characteristics and mechanical properties of BxC-TaB2(x = 3.7, 4.9, 7.1) ceramics were comprehensively investigated via this method. Dense BxC-TaB2 ceramics with refined microstructure were obtained from submicro tantalum carbide and boron powder mixtures at 1800℃/50 MPa/5 min by spark plasma sintering. The stoichiometry of boron carbide was determined from lattice parameters and Raman shift. It was found that uniformly distributed TaB2 grains in the BxC matrix is favor of the densification process and restricting grain growth.Besides, planar defects with high density were observed from the as-formed B7.1 C grains and transient stress was considered to contribute to the densification involved with plastic deformation. Microstructural observations indicate the dissolution of oxygen in the TaB2 lattice and most of the B7.1 C/TaB2 phase boundaries were clean. Owing to the highly faulted structure and finer grain size, as-obtained BxC-TaB2 ceramics exhibit high Vickers hardness(33.3–34.4 GPa at 9.8 N) and relatively high flexural strength ranging from 440 to 502 MPa. | Junfeng Gu Ji Zou Peiyan Ma Hao Wang Jinyong Zhang Weimin Wang Zhengyi Fu | 2019 | Journal of Materials Science & Technology2019，35，12： | 2 |
| 10 | Fabrication of Titanium Diboride-Cu Composite by Self-High Temperature Synthesis plus Quick Press显示文摘Titanium diboride based composites, good candidates for contact materials, have high hardness, Young’s modulus,high temperature stability, and excellent electrical, thermal conductivity. However a good interface of TiB2/Cu isvery difficult to achieve for oxidation of TiB2. To avoid this oxidation behavior, the in situ combusting synthesistechnology, SHS, was used to prepare TiB2/Cu composite. The characters of Ti-B-xCu SHS were studied in detail,such as combustion temperature, products phases and grain size. Based on the experimental results a propertechnology way of self-high temperature synthesis plus quick press (SHS/QP) was determined and compact TiB2/Cucomposites with relative density over than 97 pct of the theoretical were fabricated by this method. The propertiesand microstructures of these TiB2 based composites were also investigated. | Jinyong ZHANG+, Zhengyi FU and Weimin WANGState Key Lab of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China | 2005 | Journal of Materials Science & Technology2005，21，6： | 2 |
| 11 | Bioprocess-inspired preparation of silica with varied morphologies and potential in lithium storage显示文摘As one of the most delicate bioprocesses in nature,biosilicification is closely related to biosilica with various morphologies,and has provided abundant inspiration to materials synthesis.In the present study,to explore the biosilica formation process and fabricate silica with an exquisite microstructure for lithiumion battery(LIB)electrodes,a bacterial phage(M13)is used as a biotemplate to synthesize silica with diverse morphologies:cylinders,hexagonal prisms,assemblies of smaller cylinders and nanowires.A facile ethanol bath method is conducted to coat the nanowires with nitrogen-containing carbon and carbon-coated SiO_(2) nanowires with mesochannels(C@msSiO_(2) NWs)are first used as anode materials for LIBs.Attributed to the uniform carbon coating and parallel mesochannel structure,the electronic conductivity and capacity to accommodate volume variations were significantly improved.In the electrochemical perfo rmance test,the composites calcined at 750℃(C@msSiO_(2) NWs-750)show an impressive capacity of 653 mA h g^(-1) at a current density of 500 mA g^(-1) and stability(1000 cycles).In view of the electrochemical test outcomes,the prepa ration of a sophisticated structure with an outstanding potential is easily achieved via a biomimetic strategy. | Fuqiang Wan Wenxuan Wang Zhaoyong Zou Hao Xie Hang Ping Zhengyi Fu | 2021 | Journal of Materials Science & Technology2021，，13： | 2 |
| 12 | 500μm field-of-view probe-based confocal microendoscope for large-area visualization in the gastrointestinal tract显示文摘Rapid large-area tissue imaging at the cellular resolution is important for clinical diagnosis.We present a probe-based confocal microendoscope(p CM)with a field-of-view(FOV)diameter over 500μm,lateral resolution of 1.95μm,and outer diameter of 2.6 mm,compatible with the biopsy channel of conventional gastroscopes.Compared to a conventional p CM,our system's FOV increased by a factor of 4 while maintaining the probe size and cellular resolution—comparable to the FOV of Zeiss Axio Observer's 20×=0.8 numerical aperture objective lens.Ex vivo imaging of wide areas in healthy and diseased rat gastrointestinal tract tissues demonstrates the system's practicality. | HUA LI ZHENGYI HAO JIANGFENG HUANG TINGTING LU QIAN LIU LING FU | 2021 | Photonics Research2021，9，9： | 1 |
| 13 | Influence of Hot Pressing Sintering Temperature and Time on Microstructure and Mechanical Properties of TiB2 Ceramics显示文摘 | Wang Weimin Fu Zhengyi Wang Hao | 2002 | J Eur Ceram Soc2002，22，： | 1 |
| 14 | SPS temperature distribution of different conductivity materials 显示文摘 | WANG Yucheng FU Zhengyi ZHANG Qingjie | 2002 | Key Engineering Materials2002，，11： | 1 |
| 15 | Influence of Hot Pressing Sintering Temperature and Time on Micros-tructure and Mechanical Properties of TiB2 Ceramics 显示文摘 | Wang Weimin Fu Zhengyi Wang Hao | 2002 | Journal of the European Ceramic Society2002，22，7： | 1 |
| 16 | Transient Liquid-phase Sintering of AIN Ceramics with CaF2 additive显示文摘 | XIONG Yan WANG Hao FU Zhengyi | 2013 | Journal of theEuropean Ceramic Society2013，33，11： | 1 |
| 17 | Influence of hot pressing sintering temperature and time on microstructure and mechanical properties of TiB2 ceramics 显示文摘 | WANG Weimin FU Zhengyi WANG Hao | 2002 | J Eur Ceram Soc2002，22，7： | 1 |
| 18 | Study of temperature field in spark plasma sintering显示文摘 | Wang Yucheng Fu Zhengyi | 2002 | Materials Science and Engineering2002，90，： | 1 |
| 19 | Breaking and characteristics of Ganoderma lucidum spores by high speed entrifugal shearing pulverizer显示文摘 | Jingjing Ma Zhengyi Fu Peiyan Ma Yanli Su Qingjie Zhang | 2007 | Journal of Wuhan University of Technology - Mater Sci Ed2007，，4： | 1 |
| 20 | The nano pulverization of traditional Chinese medicine Liuwei Dihuang显示文摘 | MA Peiyan FU Zhengyi SU Yanli MA Jingjing | 2006 | Journal of Wuhan University of Technology - Mater Sci Ed2006，，2： | 1 |
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