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| 1 | Synthesis and characterization of an environmentally friendly PHBV/PEG copolymer network as a phase change material显示文摘Novel environmentally friendly poly(hydroxybutyrate-co-hydroxyvalerate) and poly(ethylene glycol) (PHBV/PEG) copolymer networks were synthesized through free-radical solution polymerization with PHBV diacrylate (PHBVDA) and polyethylene glycol diacrylate (PEGDA) as macromers. The molecular structure of PHBV/PEG copolymer network was characterized by Fourier transform infrared (FT-IR) and 1 H nuclear magnetic resonance ( 1 H NMR). The morphology of the PHBV/PEG copolymer network was characterized by polarization optical microscopy. Thermal energy storage properties, thermal reliability and thermal stability were investigated by differential scanning calorimetry (DSC) and thermogravimetric analysis. The results indicated that the PHBV/PEG copolymer network hindered the growth of PEG crystalline segments or PHBV segments. PHBV/PEG copolymer network had a higher latent heat enthalpy, which didn't reduce with the components of PHBV increased. Moreover, PHBV/PEG copolymer network still had good thermal stability even at 300 ℃. These results suggested that such environmentally friendly copolymer network would have wide applications in phase change energy storage materials. | XIANG HengXue WANG ShiChao WANG RenLin ZHOU Zhe PENG Cheng ZHU MeiFang | 2013 | Science China Chemistry2013，56，6： | 18 |
| 2 | Bio-Based Hyperbranched Toughener From Tannic Acid and Its Enhanced Solvent-Free Epoxy Resin with High Performance显示文摘It is essential to design economic and efficient tougheners to prepare high-performance epoxy resin;however,this has remained a huge challenge.Herein,an eco-friendly,low-cost,and facile-fabricated bio-based hyperbranched toughener,carboxylic acid-functionalized tannic acid(CATA),was successfully prepared and applicated to the preparation of solvent-free epoxy resins.The mechanical performance,morphology,structural characterization,and thermal characterization of toughened epoxy resin system were studied.The toughened epoxy resin system with only 1.0wt%CATA reached the highest impact strength,111%higher than the neat epoxy resin system.Notably,the tensile strength and elongation at break of toughened epoxy resin systems increased moderately with increasing CATA loading.Nonphase-separated hybrids with significant toughening effect were obtained.Additionally,the thermal stabilities of toughened epoxy resin systems decreased with increasing CATA loading.This study provides an eco-friendly,cost-effective,and facile approach for the preparation of high-performance,solvent-free epoxy resins with potential for practical applications in sealing integrated circuits and electrical devices fields. | Jie Xu Jiayao Yang Hengxu Wang Peng Lin Xiaohuan Liu Jinjie Zhang Shenyuan Fu Yuxun Tang | 2019 | Journal of Renewable Materials2019，7，12： | 5 |
| 3 | Lignin-based carbon fibers: Formation, modification and potential applications显示文摘As an aromatic polymer in nature, lignin has recently attracted gross attention because of its advantages of high carbon content, low cost and bio-renewability. However, most lignin is directly burnt for power generation to satisfy the energy demand of the pulp mills. As a result, only a handful of isolated lignin is used as a raw material. Thus, increasing value addition on lignin to expand its scope of applications is currently a challenge demanding immediate attention. Many efforts have been made in the valorization of lignin, including the preparation of precursors for carbon fibers. However, its complex structure and diversity significantly restrict the spinnability of lignin. In this review, we provide elaborate knowledge on the preparation of lignin-based carbon fibers ranging from the relationships among chemical structures, formation conditions and properties of fibers, to their potential applications. Specifically, control procedures for different spinning methods of lignin, including melt spinning, solution spinning and electrospinning, together with stabilization and carbonization are deeply discussed to provide an overall understanding towards the formation of lignin-based carbon fibers. We also offer perspectives on the challenges and new directions for future development of lignin-based carbon fibers. | Shichao Wang Jixing Bai Mugaanire Tendo Innocent Qianqian Wang Hengxue Xiang Jianguo Tang Meifang Zhu | 2022 | Green Energy & Environment2022，7，4： | 5 |
| 4 | High thermal stability Cu_(2)O@OZrP micro-nano hybrids for melt-spun excellent antibacterial activity polyester fibers显示文摘Public safety incidents caused by bacterial infections have attracted widespread attention towards antibacterial textiles(fibers,fabrics,etc.).Nevertheless,it is still challenging to efficiently load inorganic nano-antibacterial materials in polymer fibers.In this work,zirconium phosphate(ZrP,layered micro-nano materials)was utilized as a micro-nano carrier.The octadecyl triphenyl phosphonium bromide(OTP)was intercalated between the ZrP sheets by the ion exchange method to improve the carrier-polymer compatibility and the antibacterial performance.Through in-situ chemical reduction,the ultra-small nano-sized cuprous oxide(Cu_(2)O<5 nm)was loaded on the outer surface of ZrP to realize the uniform and stable dispersion of the Cu_(2)O on the carrier and improve the antibacterial performance.The ZrP nanosheets loaded with Cu_(2)O and OTP(Cu_(2)O@OZrP)had excellent antibacterial properties,and the antibacterial rate against E.coli,S.aureus and C.albicans was more than 99%.The intercalation amount of OTP in Cu_(2)O@OZrP can reach 16%,and the thermal stability was excellent and a significant increase in the Zeta potential.Indeed,the decomposition temperature was greater than 350℃,which was suitable for high-temperature melt processing of polymers.Consequently,we prepared PET/Cu_(2)O@OZrP fibers using polyethylene glycol terephthalate(PET),which accounts for 70%of the total chemical fibers,as the fiber matrix.PET/Cu_(2)O@OZrP fibers exhibited excellent mechanical property and antibacterial performance when the content of Cu_(2)O@OZrP was only 0.2%.The antibacterial rate against five types of bacteria including super bacteria(MRSA,VRE)was more than 99%. | Jialiang Zhou Yaping Wang Weinan Pan Hengxue Xiang Peng Li Zhe Zhou Meifang Zhu | 2021 | Journal of Materials Science & Technology2021，，22： | 4 |
| 5 | Moirésuperlattice engineering of two-dimensional materials for electrocatalytic hydrogen evolution reaction显示文摘Vertically stacking two-dimensional(2D)materials with small azimuthal deviation or lattice mismatch generate distinctive global structural periodicity and symmetry,revealed as the moirésuperlattices(MSLs).Manipulating the interlayer twist angle enables the modification of the electronic structure of 2D materials to explore the advanced applications.Although extraordinary progress has been achieved in the unique structure and emergent properties of MSLs,the investigation of the catalytic applications of MSLs materials is still in its infancy.It is therefore very urgent to summarize the advanced development of MSLs in the field of catalysis.In this review,we firstly summarize the advanced fabrication and high-resolution characterization techniques of the MSLs materials,as well as their novel properties related to catalysis represented by electrocatalytic hydrogen evolution reaction(HER).Then,all the MSLs materials such as MoS_(2),WS_(2),and Ru serving as electrocatalysts for HER are further reviewed in detail.Finally,we outline the current challenges as well as the experimental and theoretical strategies to advance the development of function-oriented MSLs materials for catalysis.This review aims to provide profound insight into the wide applications of this novel material platform in catalytic field. | Yang Li Yuqi Hua Ning Sun Shijie Liu Hengxu Li Cheng Wang Xinyu Yang Zechao Zhuang Longlu Wang | 2023 | Nano Research2023，16，7： | 1 |
| 6 | Field experiment using transient energy method to locate a single-phase to ground fault显示文摘Distribution networks in China and several other countries are predominantly neutral inefficiently grounding systems(NIGSs),and more than 80%of the faults in distribution networks are single-phase-to-ground(SPG)faults.Because of the weak fault current and imperfect monitoring equipment configurations,methods used to determine the faulty line secti ons with SPG faults in NIGSs are in effective.The developme nt and application of distributi on-level phasor measurement units(PMUs)provide further comprehensive fault information for fault diagnosis in a distribution network.When an SPG fault occurs,the transient energy of the faulted line section tends to be higher than the sum of the transient energies of other line sections.In this regard,transient energy-based fault location algorithms appear to be a promising resolution.In this study,a field test plan was designed and implemented for a 10 kV distribution network.The test results dem on strate the effective ness of the transient en ergy-based SPG locati on method in practical distributi on networks. | Wei Xie Xuewen Wang Chen Fang Hengxu Zhang Fang Shi Xiaodong Xing Baicong Sun | 2020 | Global Energy Interconnection2020，3，6： | 1 |
| 7 | Tailoring activation sites of metastable distorted 1T′-phase MoS_(2) by Ni doping for enhanced hydrogen evolution显示文摘Heteroatom doping is a promising approach to enhance catalytic activity by modulating physical properties,electronic structure,and reaction pathway.Herein,we demonstrate that appropriate Ni-doping could trigger a preferential transition of the basal plane from 2H(trigonal prismatic)to 1T′(clustered Mo)by inducing lattice distortion and S vacancy(SV)and thus dramatically facilitate its catalytic hydrogen evolution activity.It is noteworthy that the unique catalysts did possess superior catalytic performance of hydrogen evolution reaction(HER).The rate of photocatalytic hydrogen evolution could reach 20.45 mmol·g^(−1)·h^(−1) and reduced only slightly in the long period of the photocatalytic process.First-principles calculations reveal that the distorted Ni-1T′-MoS_(2) with SV could generate favorable water adsorption energy(Ead(H_(2)O))and Gibbs free energy of hydrogen adsorption(∆GH).This work exhibits a facile and promising pathway for synergistically regulating physical properties,electronic structure,or wettability based on the doping strategy for designing HER electrocatalysts. | Mingming Liu Hengxu Li Shijie Liu Longlu Wang Lingbin Xie Zechao Zhuang Chun Sun Jin Wang Meng Tang Shujiang Sun Shujuan Liu Qiang Zhao | 2022 | Nano Research2022，15，7： | 1 |
| 8 | Preparation and properties of form-stable phase change materials polyacry- lonitrile fiber/stearic acid blends显示文摘 | Guo Jing Xiang Hengxue Wang Qianqian | 2011 | Advanced Materials Re- search2011，，197198： | 1 |
| 9 | Synthesis and Characterization of Comb‐like P(MPEGA‐ co ‐AM) Copolymer as Phase Change Materials显示文摘 | Hengxue Xiang Shaohua Chen Shichao Wang Cheng Peng Meifang Zhu | 2012 | Chin. J. Chem2012，，9： | 1 |
| 10 | Mathematical Model of Hearth and Bottom Erosion in Blast Furnace显示文摘Furnace lining erosion is closely related to the operation stability and safety. The detection technology for hearth lining thickness of blast furnace was introduced.By using the data of thermocouples installed in the bottom of furnace hearth,a mathematical model of erosion was established; the real state of the hearth and bottom erosion was studied; the erosion condition was followed,serving for the furnace longevity. | LI Hengxu CHE Yuman ZHOU Zhe WANG Qi WANG Hongtao | 2014 | China's Refractories2014，23，3： | 1 |
| 11 | One-step floating conversion of biomass into highly graphitized and continuous carbon nanotube yarns显示文摘The rapid growth of the demand for carbon nanotubes(CNTs) has greatly promoted their large-scale synthesis and development. However,the continuous production of CNT fibers by floating catalyst chemical vapor deposition(FCCVD) requires a large amount of non-renewable carbon sources. Here, the continuous production of highly graphitized CNT yarns from biomass tannic acid(TA) is reported. The chelation of TA and catalyst promotes the rapid cracking of biomass into carbon source gas, and the pyrolysis cracking produces the reducing gas, which solves the problems of the continuous production of CNT yarns using biomass. Through simple twisting, the mechanical strength of CNT yarn can reach 886 ± 46 MPa, and the electrical conductivity and graphitization(IG/ID) can reach 2 × 10^(5)S m^(-1)and 6.3, respectively. This work presents a promising solution for the continuous preparation of CNT yarns based on green raw material. | Gongxun Zhai Qianqian Wang Fuyao Liu Zexu Hu Chao Jia Dengxin Li Hengxue Xiang Meifang Zhu | 2023 | Green Energy & Environment2023，8，6： | 0 |
| 12 | Can Monetary Policy Undo Asset-freezing Sanctions?显示文摘This article investigates the macroeconomic consequences of foreign asset-freezing sanctions,a tool utilized by several Western nations amid recent geopolitical tensions.Specifically,it examines the repercussions of such sanctions on open economies,finding that they may experience a sharp recession and currency crisis.To quantify the impact,we develop a new Keynesian dynamic stochastic general equilibrium model with financial frictions and an asset-freezing channel for an open economy.We also calibrate our model to capture the unique structures of the Russian economy.The quantitative analysis of the model demonstrates that an abrupt asset-freezing sanction would lead to large output losses and high inflation increases.Our counterfactual examination reveals that higher elasticity of import substitution and lower elasticity of export substitution could alleviate the impact of foreign sanctions,whereas more aggressive monetary policy may have positive but limited stabilization effects.Notably,the monetary authority must navigate a trade-off between stabilizing output and managing inflation resulting from the cash-in-advance channel. | Hengxu Song Pengfei Wang | 2023 | China & World Economy2023，31，6： | 0 |
| 13 | Cooling Water Flow Rate Calculation for Hearth of Large Blast Furnaces显示文摘The cooling water flow rate for hearth of large blast furnaces was calculated by simulation. The results show that the cooling water flow rate shall be above 4 200m3/ h for hearth of large blast furnaces; to meet requirements of the increasing smelting intensity and to ensure the safety at the end of the first campaign,the designed maximum cooling water flow rate should be 5 900m3/ h; according to the flow distribution stability and the calculated resistance loss,hearth cooling stave pipes with the specification of 76 mm × 6 mm shall be adopted to assure the flow velocity in pipes of hearth cooling stave in the range of 1. 9- 2. 3 m / s. | LI Hengxu CHE Yiunan ZHOU Zhe WANG Qi WANG Hongtao | 2015 | China's Refractories2015，24，2： | 0 |
| 14 | Ultra-fast bacterial inactivation of Cu_(2)O@halloysite nanotubes hybrids with charge adsorption and physical piercing ability for medical protective fabrics显示文摘Metals have been used for wound treatment and toxicity testing since ancient times.With the development of nanotechnology,metal oxides have been proven to have excellent sterilization and disinfection functions.However,the rapid bacterial inactivation efficiency and trapping physicochemical killing ability remain simultaneously undemonstrated in antibacterial nanohybrids.Here,we demonstrate a method for in-situ reduction of small-sized Cu_(2)O particles on one-dimensional inorganic halloysite nanotubes(HNTs).The resultant Cu_(2)O@HNTs hybrids not only give Cu_(2)O excellent dispersibility,but also exert the synergistic effect of the charge adsorption of metal oxides and the physical piercing effect of the small-sized nanotubes.Furthermore,the release of Cu^(2+)from hybrids damages cell membranes and denatures proteins and DNA.Through this sterilization mechanism,Cu_(2)O@HNTs allow for the inactivation rate of Escherichia coli to reach 94.5%within 2 min and complete inactivation within 10 min.This excellent sterilization mode makes Cu_(2)O@HNTs exhibit excellent broad-spectrum antibacterial activity and inactivation efficiency,while shows weak cytotoxicity.These hybrids were further applied in the processing of functional antibacterial fibers and fabrics.Thus,we believe that this excellent antibacterial hybrid is practically attractive in this critical time of the COVID-19 pandemic. | Yaping Wang Qianqian Wang Guoyi Wu Hengxue Xiang Mugaanire Tendo Innocent Mian Zhai Chao Jia Peng Zou Jialiang Zhou Meifang Zhu | 2022 | Journal of Materials Science & Technology2022，，27： | 0 |
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