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| 1 | Effect of Laser Remelting on the Microstructure and Corrosion Resistance of Plasma Sprayed Fe-based Coating显示文摘Fe-based amorphous and nanocrystalline coatings were fabricated by air plasma spraying. The coatings were further treated by laser remelting process to improve their microstructure and properties. The corrosion resistance of the as-sprayed and laser-remelted coatings in 3.5wt% Na Cl and 1 mol/L HCl solutions was evaluated by electrochemical polarization analysis. It was found that laser-remelted coating appeared much denser than the as-sprayed coating. However, laser-remelted coating contains much more nanocrystalline grains than the as-sprayed coatings, resulting from the lower cooling rate in laser remelting process compared with plasma spraying process. Electrochemical polarization results indicated that the laser-remelted coating has great corrosion resistance than the as-sprayed coating because of its dense structure. | 姜超平 WANG Junxing HAN Jianjun LU Yuan XING Yazhe CHEN Yongnan SONG Xuding | 2015 | Journal of Wuhan University of Technology(Materials Science)2015，30，4： | 6 |
| 2 | Recent Advances in Single-Atom Electrocatalysts for Oxygen Reduction Reaction显示文摘Oxygen reduction reaction(ORR)plays significant roles in electrochemical energy storage and conversion systems as well as clean synthesis of fine chemicals.However,the ORR process shows sluggish kinetics and requires platinum-group noble metal catalysts to accelerate the reaction.The high cost,rare reservation,and unsatisfied durability significantly impede large-scale commercialization of platinum-based catalysts.Single-atom electrocatalysts(SAECs)featuring with well-defined structure,high intrinsic activity,and maximum atom efficiency have emerged as a novel field in electrocatalytic science since it is promising to substitute expensive platinum-group noble metal catalysts.However,finely fabricating SAECs with uniform and highly dense active sites,fully maximizing the utilization efficiency of active sites,and maintaining the atomically isolated sites as single-atom centers under harsh electrocatalytic conditions remain urgent challenges.In this review,we summarized recent advances of SAECs in synthesis,characterization,oxygen reduction reaction(ORR)performance,and applications in ORR-related H_(2)O_(2)production,metal-air batteries,and low-temperature fuel cells.Relevant progress on tailoring the coordination structure of isolated metal centers by doping other metals or ligands,enriching the concentration of single-atom sites by increasing metal loadings,and engineering the porosity and electronic structure of the support by optimizing the mass and electron transport are also reviewed.Moreover,general strategies to synthesize SAECs with high metal loadings on practical scale are highlighted,the deep learning algorithm for rational design of SAECs is introduced,and theoretical understanding of active-site structures of SAECs is discussed as well.Perspectives on future directions and remaining challenges of SAECs are presented. | Junxing Han Juanjuan Bian Chunwen Sun | 2020 | Research2020，，1： | 6 |
| 3 | Effect of poly(ethylene oxide) with different molecular weights on the electrospinnability of sodium alginate显示文摘 | Huarong Nie Aihua He Wanling Wu Jianfen Zheng Shanshan Xu Junxing Li Charles C. Han | 2009 | Polymer2009，，20： | 2 |
| 4 | Diesel-like hydrocarbons obtained by direct hydrodeoxygenation of sunflower oil over Pd/Al-SBA-15 catalysts显示文摘 | Jinzhao Duan Junxing Han Hui Sun Ping Chen Hui Lou Xiaoming Zheng | 2011 | Catalysis Communications2011，，： | 1 |
| 5 | Hybrid bound states in the continuum in terahertz metasurfaces显示文摘Bound states in the continuum(BICs)have exhibited extraordinary properties in photonics for enhanced light-matter interactions that enable appealing applications in nonlinear optics,biosensors,and ultrafast optical switches.The most common strategy to apply BICs in a metasurface is by breaking symmetry of resonators in the uniform array that leaks the otherwise uncoupled mode to free space and exhibits an inverse quadratic relationship between quality factor(Q)and asymmetry.Here,we propose a scheme to further reduce scattering losses and improve the robustness of symmetry-protected BICs by decreasing the radiation density with a hybrid BIC lattice.We observe a significant increase of radiative Q in the hybrid lattice compared to the uniform lattice with a factor larger than 14.6.In the hybrid BIC lattice,modes are transferred toГpoint inherited from high symmetric X,Y,and M points in the Brillouin zone that reveal as multiple Fano resonances in the far field and would find applications in hyperspectral sensing.This work initiates a novel and generalized path toward reducing scattering losses and improving the robustness of BICs in terms of lattice engineering that would release the rigid requirements of fabrication accuracy and benefit applications of photonics and optoelectronic devices. | Junxing Fan Zuolong Li Zhanqiang Xue Hongyang Xing Dan Lu Guizhen Xu Jianqiang Gu Jiaguang Han Longqing Cong | 2023 | Opto-Electronic Science2023，2，4： | 1 |
| 6 | Multi-scale promoting effects of lead for palladium catalyzed aerobic oxidative coupling of methylacrolein with methanol显示文摘 | Han Junxing Zhang Suojiang Li Yuchao | 2015 | Catal Sci Technol2015，5，4： | 1 |
| 7 | Palladium- Catalyzed Transformation of Renewable Oils into Diesel Com- ponents显示文摘 | Han Junxing Sun Hui Duan Jinzhao | 2010 | Adv Synth Catal2010，352，1112： | 1 |
| 8 | Palladium-Cata- lyzed Decarboxylation of Higher Aliphatic Esters : Towards a New Protocol to the Second Generation Biodiesel Production 显示文摘 | Han Junxing Sun Hui Ding Yuqi | 2010 | Green Chem2010，12，3： | 1 |
| 9 | Carbon-supported molybdenum carbide catalysts forthe conversion of vegetable oils显示文摘 | HAN Junxing DUAN Jinzhao CHEN Ping | 2012 | Chem Sus Chem2012，5，4： | 1 |
| 10 | Studies on the controlled morphology and wettabihty of polystyrene surfaces by electrospinning or electrospraying显示文摘 | Zheng Jianfen He Aihua Li Junxing Han Charles C | 2006 | Polymer2006，47，： | 1 |
| 11 | A High-performance Lithium Metal Battery with a Multilayer Hybrid Electrolyte显示文摘Solid-state batteries have been considered as a good choice for substituting traditional batteries with liquid electrolytes because of their high energy density and safe property.However,a little amount of flammable non-aqueous liquid electrolyte or polymer electrolyte is usually required to improve the interfacial contact,which is adverse to safety.Here,a nonflammable gel is prepared by hydrogen-bond interaction and applied as an interfacial layer to improve the performance of solid-state batteries.The prepared multilayer hybrid electrolyte(MHE)composed of gel and CPE shows a wide electrochemical window(5.3 V vs Li/Li+),high ionic transference number(0.57),and ionic conductivity(7.18×10^(−4) S cm^(−1))at room temperature.Thus,the assembled Li symmetric cell with MHE can cycle over 650 h at 0.5 mA cm^(−2) with a lower overpotential of~61 mV.The LiFePO_(4)|MHE|Li cell exhibits a higher discharge capacity of 107.8 mAh g−1 even cycled at 5 C.It also shows superior capacity retention of 96.4%after 1000 cycles at 0.5 C.This work provides a promising strategy for designing high-performance solid-state batteries. | Qiang Yi Wenqiang Zhang Tianyuan Wang Junxing Han Chunwen Sun | 2023 | Energy & Environmental Materials2023，6，1： | 0 |
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