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| 1 | Flake tantalum powder for manufacturing electrolytic capacitors显示文摘The FTP200 flake tantalum powder was introduced.The microstructures of the powder with leaf-like primary particles having an average flakiness of 2 to 20 and porous agglomerated particles were observed.The chemical composition,physical properties,and electrical properties of the FTP200 powder were compared with those of the FTW300 nodular powder.The FTP200 powder is more sinter-resistant,and the surface area of the flake tantalum powder under sintering at high temperature has less loss than that of the nodular tantalum powder.The specific capacitance of the flake tantalum powder is higher than that of the nodular tantalum powder with the same surface area when anodized at high voltage.Thus,the flake tantalum powder is suitable for manufacturing tantalum solid electrolytic capacitors in the range of median and high(20-63 V) voltages. | HE Jilin YANG Guoqi PAN Luntao LIU Hongdong BAO Xifang | 2008 | Rare Metals2008，27，1： | 13 |
| 2 | Superlubricity achieved with two-dimensional nano-additives to liquid lubricants显示文摘The topic of superlubricity is attracting considerable interest around the world while humanity is facing an energy crisis.Since various liquid superlubricity systems can be commonly achieved on the macroscale in ambient conditions,it is considered an effective solution to reduce unnecessary energy and material losses.However,certain practical problems such as low load-bearing pressure,dependence on hydrogen ions,and relatively long running-in processes still limit its widespread application.Two-dimensional(2D)nano-additives with ultrathin longitudinal dimensions can lower the shear resistance between sliding solid surfaces,and thus further optimize the applied conditions.In this review,the latest studies on 2D nano-additives with a combination of various water-based lubricants in the state of superlubricity are reported,typically including black phosphorus(BP),graphene oxide(GO),and layered double hydroxide.During the sliding process,composite lubricants effectively improved the load capacity(up to 600 MPa),reduced wear,and accelerated the running-in period(within 1,000 s)of the liquid superlubricity system.Both macromechanical experiments and microscopic tests are conducted to precisely analyze various interactions at the interfaces of the nano-additives and solid surfaces.These interactions can be described as tribochemical reactions,physical protection,and adsorption enhancement,and improved wear resistance.This review provides better guidance for applying 2D nanomaterials in liquid superlubricity systems. | Hongdong WANG Yuhong LIU | 2020 | Friction2020，8，6： | 6 |
| 3 | The RALF1-FERONIA Complex Phosphorylates eIF4E1 to Promote Protein Synthesis and Polar Root Hair Growth显示文摘The molecular links between extracellular signals and the regulation of localized protein synthesis in plant cells are poorly understood.Here,we show that in Arabidopsis thaliana,the extracellular peptide RALF1 and its receptor,the FERONIA receptor kinase,promote root hair(RH)tip growth by modulating protein synthesis.We found that RALF1 promotes FERONIA-mediated phosphorylation of elF4E1,a eukaryotic translation initiation factor that plays a crucial role in the control of mRNA translation rate.Phosphorylated elF4E1 increases mRNA affinity and modulates mRNA translation and,thus,protein synthesis.The mRNAs targeted by the RALF1-FERONIA-elF4E1 module include ROP2 and RSL4,which are important regulators of RH cell polarity and growth.RALF1 and FERONIA are expressed in a polar manner in RHs,which facilitate elF4E1 polar丨ocalization and thus may control local f?OP2 translation.Moreover,we demonstrated that high-level accumulation of RSL4 exerts negative-feedback regulation of RALF1 expression by directly binding the RALF1 gene promoter,determining the final RH size.Our study reveals that the link between RALF1-FERONIA signaling and protein synthesis constitutes a novel component regulating cell expansion in these polar growing cells. | Sirui Zhu Jose Manuel Estevez Hongdong Liao Yonghua Zhu Tao Yang Chiyu Li Yichuan Wang Lan Li Xuanming Liu Javier Martinez Pacheco Hongwei Guo Feng Yu | 2020 | Molecular Plant2020，13，5： | 3 |
| 4 | Biochar can Increase Chinese Cabbage(Brassica oleracea L.)Yield,Decrease Nitrogen and Phosphorus Leaching Losses in Intensive Vegetable Soil显示文摘There are few evidences on the effect of biochar on vegetable yield,nitrogen(N)and phosphorus(P)leaching losses under intensive vegetable production soil.The current field plot scale study evaluated responses of Chinese cabbage(Brassica oleracea L.)yield,N and P leaching losses using five N treatments of common N application rate according to local farmers’practice(N100%),reducing 20%or 40%N fertilizer(N80%and N60%),and reducing 40%N fertilizer but incorporating 10 or 20 t/ha biochar(N60%+BC10 and N60%+BC20).Results showed that N80%and N60%decreased both the cabbage economic and leaf yields by 6.8%-36.3%and 27.4%-37.7%,respectively.Incorporation of biochar with reduced N fertilizer rates improved the cabbage yield,in particular the N60%+BC20 matched the yield that observed in N100%treatment.Enhanced N and P uptake capacities of cabbage shoot probably contributed the higher vegetable production under both biochar amendment schemes.Biochar application mitigated the NH_(4)^(+)-N and total P leaching losses by 20%-30%and 29%-32%,respectively,compared with their counterpart treatment N60%.Nevertheless,biochar exerted no influence on the NO_(3)^(-)-N leaching.In addition,soil organic matter content was recorded with 7.4%-28.7%higher following 10-20 t/ha biochar application.In conclusion,biochar application can increase economic yield of cabbage via increasing N and P use efficiency,decrease N and P leaching losses,and improve soil quality in an intensive vegetable production system. | Haijun Sun Paramsothy Jeyakumar Hongdong Xiao Xuewen Li Jiayou Liu Min Yu Prabal Bir Jung Rana Weiming Shi | 2022 | Phyton-International Journal of Experimental Botany2022，91，1： | 3 |
| 5 | Tribological properties of novel palygorskite nanoplatelets used as oil-based lubricant additives显示文摘Layered palygorskite(PAL),commonly called attapulgite,is a natural inorganic clay mineral composed of magnesium silicate.In this study,an aqueous miscible organic solvent treatment method is adopted to prepare molybdenum-dotted palygorskite(Amo-PMo)nanoplatelets,which greatly improved the specific surface area of PAL and the dispersion effect in an oil-based lubricant system.Their layered structure and size were confirmed using transmission electron microscopy(TEM)and atomic force microscopy.Following a tribological test lubricated with three additives(PAL,organic molybdenum(SN-Mo),and Amo-PMo),it was found that the sample of 0.5 wt%Amo-PMo exhibited the best tribological properties with a coefficient of friction of 0.09.Moreover,the resulting wear scar diameter and wear volume of the sliding ball surface were 63%and 49.6%of those lubricated with base oil,respectively.Its excellent lubricating performance and self-repairing ability were mainly attributed to the generated MoS2 adsorbed on the contact surfaces during the tribochemical reaction,thereby effectively preventing the direct collision between asperities on sliding solid surfaces.Thus,as-prepared Amo-PMo nanoplatelets show great potential as oil-based lubricant additives,and this study enriches the existing application of PAL in industry. | Kunpeng WANG Huaichao WU Hongdong WANG Yuhong LIU Lv YANG Limei ZHAO | 2021 | Friction2021，9，2： | 3 |
| 6 | Development and application of tumor-targeting magnetic nanoparticles FA-StNP@Fe_2O_3 for hyperthermia显示文摘Modified magnetic starch nanoparticles (FA-StNP@Fe2O3) were synthesized by conjugating folic acid (FA-PEG-NH2) onto the surface of magnetic starch nanoparticles (StNP@Fe2O3) prepared by reverse microemulsion method. The synthesized FA-StNP@Fe2O3 was investigated by transmission electron microscopy and zeta potential analysis. The average size of its well dispersed particles was 250 nm. The iron concentration of 2 mg/g was detected by phenanthroline method. Placing FA-StNP@Fe2O3 nanoparticles in the alternating magnetic field for 30 min resulted in an increase in the suspension temperature from ambient temperature (37℃) to a value between 42℃ and 43℃. Co-cultured nanoparticles and Hela cell line or normal HUEC-12 cell line, and the biological effects at the cellular level were investigated in the alternating magnetic field using MTT assay, Hochest-PI double staining and flow cytometry analysis. Experimental results showed that FA-StNP@Fe2O3 within acertain concentration range has no obvious effect on cell proliferation. When treated in the magnetic field, apoptosis rate on Hela induced by FA-StNP@Fe2O3 was 13.4%. Prussian blue staining analysis confirmed that the nanoparticles modified with folic acid had improved ability in tumor cell-targeting, and therefore, potential applications in biomedical and magnetocaloric areas. It is expected be applied in tumor targeting therapy in the near future. | ZHENG YuanQing TONG ChunYi WANG Bei XIE Ying LIAO HongDong LI Dan LIU XuanMing | 2009 | Chinese Science Bulletin2009，54，17： | 3 |
| 7 | In situ synthesis of SnO 2 nanosheet/graphene composite as anode materials for lithium-ion batteries显示文摘 | Hongdong Liu Jiamu Huang Chengjie Xiang Jia Liu Xinlu Li | 2013 | Journal of Materials Science: Materials in Electronics2013，，10： | 1 |
| 8 | Sizing behavior of cationic dispersed rosin-ester on cellulose fibers 显示文摘 | Liu Wenxia Chen Zicheng Duan Hongdong | 2006 | Nordic Pulp and Paper Research Journal2006，，： | 1 |
| 9 | Flower- like SnO2/grapheme composite for high capacity lithium storage显示文摘 | Liu Hongdong Huang Jiamu Li Xinlu | 2012 | Applied Surface Science2012，258，： | 1 |
| 10 | Flower-like SnO2/graphene composite for highcapacity lithium storage显示文摘 | Liu Hongdong Huang Jiamu Li Xinlu | | 0，，11： | 1 |
| 11 | Study on a novel photorefrac rive polymer containing carbazole and phthalocyanine (I) syn thesis and characterization显示文摘 | Duan Hongdong Liu Lei | 2009 | Synthetic Metals2009，159，： | 1 |
| 12 | Proteomic Analysis of the Effect of Fuzheng Huayu Recipe on Fibrotic Liver in Rats显示文摘 | Hongdong Xie Yanyan Tao Jing Lv Ping Liu Chenghai Liu Khalid Rahman | 2013 | Evidence-Based Complementary and Alternative Medicine2013，，： | 1 |
| 13 | Hot electron assisted photoelectrochemical water splitting from Audecorated ZnO@TiO_(2) nanorods array显示文摘Engineering of semiconductor nanomaterials is critical to enhance the photoelectrochemical(PEC)performance for water splitting.However,semiconductors often show the low light absorption,slow charge transfer,and easy recombination of carriers,thus leading to the low catalytic efficiency.In this work,we show facile synthesis of ZnO@TiO_(2) core–shell nanorods(NRs)arrays modified with Au nanoparticles(NPs)as the photoelectrode for PEC water splitting.Impressively,the obtained ZnO@TiO_(2)(15 nm)/Au(8 nm)array shows the maximum photocurrent density of 3.14 mA/cm^(2) at 1.2 V vs.reversible hydrogen electrode(RHE),2.6 times and 1.7 times higher than those obtained from ZnO NRs and ZnO@TiO_(2)(15 nm)arrays.The electric-field simulation and transient absorption spectroscopy show that the Au-decorated core–shell nanostructures have an enhanced hot electron generation and prolonged decay time,indicating effective charge transfer and recombination inhibition of carriers.This work provides an efficient preparation strategy for photoelectrodes as well as great potential for the large-scale development of this technology. | Hongdong Li Hongyan Liu Fei Wang Guodong Li Xiaoli Wang Zhiyong Tang | 2022 | Nano Research2022，15，7： | 0 |
| 14 | Adjustable superlubricity system using polyalkylene glycol with various acid aqueous solutions显示文摘Polyalkylene glycol(PAG)aqueous solutions have recently been demonstrated to exhibit an ultralow friction coefficient(COF,μ<0.01).However,the prolonged running-in period and low bearing capacity have limited its widespread application.In this study,we determined that the running-in period can be decreased by more than 75%when the pH value of the lubricant is controlled at 3 by introducing various acid solutions.Additionally,less time was required to realize stable superlubricity with inorganic acid at lower pH values.This was mainly attributed to the acceleration effect of hydrogen ions around the contact region.In case of PAG aqueous solution with organic acid,the wear loss between sliding solid surfaces was reduced,and thus the bearing pressure during the superlubricity period was significantly improved from approximately 30 to 160 MPa.Furthermore,the organic acid molecules were considered to form strong hydrogen bonds with PAG macromolecules and solid surfaces.This in turn strengthened the structure of the adsorption layers.The unique effect of different acids in aqueous polymer lubrication can potentially significantly aid in advancing the study of polymer tribology and broadening industrial applications. | Wenrui LIU Hongdong WANG Yuhong LIU | 2023 | Friction2023，11，7： | 0 |
| 15 | Hierarchical self-assembled structure and frictional response of phthalocyanine molecules显示文摘Solid evidence is needed to demonstrate the effect of molecular orientation and structure on the frictional property of boundary lubricants.In this work,the frictional properties of phthalocyanine self-assembled monolayers(SAMs)with face-on(aromatic cores parallel to the substrate)and edge-on(aromatic cores stand on the substrate)orientations have been compared and the in situ structural variation of edge-on SAMs under frictional shear has been revealed by atomic force microscope(AFM).Face-on oriented SAMs show lower adhesion,lower friction,and stronger wear resistance,compared with edge-on oriented SAMs.Hierarchical structures of edge-on oriented SAMs have been revealed by frictional topography,which are consisted of nanoscale columns,micron-scale stripes,and centimeter-scale monolayer.The column structure deforms under increasing load force,leading to a stepwise friction force curve and a transition among three friction states(ordered friction,collapsed friction,and worn friction).The structural deformation depends on both the order degree and anisotropic stiffness of columns.Columns in phthalocyanine SAMs show a larger stiffness when shearing against molecular plane than shearing along the molecular plane.The presented study on the interfacial structure and frictional mechanism promisingly supports the designing of novel boundary lubricants and their application in engineering. | Yijun QIAO Jian SONG Hongyu SHI Hongdong WANG Shizhu WEN Yuhong LIU | 2023 | Friction2023，11，3： | 0 |
| 16 | Achieving ultrafast superlubricity with layered double hydroxides显示文摘Layered double hydroxides(LDHs)have the potential to be superlubricated materials due to their strong adsorption effect and weak internal interaction.However,obtaining stable superlubricity during the ultrafast time(<10 s)is still a challenge.Here,we demonstrated macroscale superlubricity based on LDHs of multiple metal ions at high surface roughness,achieving superlow friction coefficients(0.006)and ultrafast wearing-in time(<7 s),which mainly originated from tribochemical reactions and the formation of nanostructured adsorption layers.Through cross-sectional analysis and density functional theory,we revealed the properties of the protective tribofilm to achieve ultrafast superlubricity.LDHs strongly adsorbed on the surface of the bearing steel,the sliding interface transformed into a heterogeneous interface between the polytetrafluoroethylene and LDH,leading to macroscale superlubricity.These findings demonstrate that tribochemical treatment of surfaces produces tribofilm that effectively reduces wearing-in time and promotes ultralow friction. | Kunpeng Wang Yuhong Liu Hongdong Wang Jianbin Luo | 2023 | Nano Research2023，16，5： | 0 |
| 17 | Macroscale superlubricity under ultrahigh contact pressure in the presence of layered double hydroxide nanosheets显示文摘It is difficult to achieve macroscale superlubricity under high contact pressures and high normal loads.Layered double hydroxide(LDH)nanoadditives were introduced into an ionic liquid alcohol solution(IL(as))with contact pressures up to 1.044 GPa,which resulted in a friction coefficient(COF)of 0.004 and a robust superlubricity state lasting for 2 h.Compared with the LDH particles(LDH-Ps)with ca.90-nm widths and 18-nm thickness,micron-scale LDH nanosheet(LDH-N)additives with ca.1.5-pm width and 6-nm thickness increased the load-bearing capacity by approximately three times during superlubricity.The lubricant film thickness and the ultrathin longitudinal dimension of the LDH-N additives did not influence the continuity of the fluid film on the contact surface.These improvements resulted from the protective adsorption layer and ion distribution formed on the contact interface,as revealed by detailed surface analyses and simulation studies.In particular,the sliding energy barrier and Bader charge calculation revealed that weak shear sliding between the nanosheet and the solid surface formed easily and the anions in the liquid adsorbed on the solid surface exhibited electrostatic repulsion forces,which generated stable tribological properties synergistically.This research provides a novel method for obtaining macroscale superlubricity for practical industrial applications. | Kunpeng Wang Lei Liu Aisheng Song Tianbao Ma Hongdong Wang Jianbin Luo Yuhong Liu | 2022 | Nano Research2022，15，5： | 0 |
| 18 | Dual-functional conductive nanofilm absorber显示文摘Converting solar energy by to other forms of energy has attracted a lot of interest from academy to industry.However,the overall utilization efficiency of solar energy is inferior due to the limited effective solar spectrum range.Here,in order to utilize the broadband solar spectrum more efficiently,a novel hybrid absorber structure was proposed,which consists of a four-layer planar nanofilm with dual functions of heat absorption and photocatalysis.The average absorption in the visible range is larger than 0.95,and in the near-infrared spectral region,the average absorption is still larger than 0.85.The overall absorption of the absorber is over 0.86,while the thermal emittance is lower than 0.04,which can lead to remarkable thermal utilization efficiency.Moreover,the full range of the solar irradiance can be utilized by incorporating the photocatalytic TiO_(2) layer into the absorber,which is active in the ultraviolet spectral range.In addition to the broadband spectral usage,the virtues of inexpensiveness and environmental friendliness make it a facile alternative to be applied in solar energy transformation. | Hongyan Liu Zheng Xie Weiming Liu Hongdong Li Yue Yan Xiaoli Wang | 2023 | Nano Research2023，16，12： | 0 |
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