摘要：Reasonably regulating electronic coupling to promote charge transfer and exciton separation has been regarded a promising approach in *** material engineering of van der Waals heterojunction(vdWsH)based on two-dimensional(2D)materials would be a potential way to optimize the as-prepared extrinsic physicochemical ***,it was still an almost uncultivated land waiting for exploration in ***,we introduced the inert h-boron nitride(h-BN)in non-metal reduced graphene oxide(GN)catalysts and constructed BN-GN *** theoretical calculation demonstrated that the h-BN can effectively modify the electronic properties of *** the introduction of h-BN,the BN-GN vdWsH can obviously enhance the catalytic activity of Li-CO_(2) *** existence of BN-GN vdWsH can reduce the overpotential more than 700 mV compared with reduced graphene oxide during the CO_(2) reduction reaction(CO_(2)RR)and CO_(2) evolution reaction(CO_(2)ER),and it extended cyclic stability more than three times,which was one structure design made it work as a high efficient electrocatalyst,catalytic materials.

摘要：The electrocatalytic hydrogen evolution reaction(HER)is one of the most promising ways for low-cost hydrogen production in the *** this work,hetero S atoms were introduced into the MoO2 to enhance the catalytic activity by simultaneously adjusting electron structure,engineering lattice defect,and increasing oxygen *** the S doped MoO2 nanosheets with proper S doping amount show the enhanced performance for *** optimized catalyst shows a small onset overpotential as low as 120 mV,a low overpotential of 176 mV at the current density of 10 mA/cm^2 which is decreased 166 mV compared to that of the pristine MoO2 nanosheets,a low Tafel slope of 57 mV/decade,and a high turnover frequency of 0.13 H2/s per active site at 150 *** finding proposes an effective strategy to prepare nonprecious metal oxide catalyst for enhancing HER performance by rationally doping hetero atoms.

摘要：Plastic forming is one of enabling and fundamental technologies in advanced manufacturing chains. Design optimization is a critical way to improve the performance of the forming system, exploit the advantages of high productivity, high product quality, low production cost and short time to market and develop precise, accurate, green, and intelligent(smart) plastic forming technology. However, plastic forming is quite complicated, relating to multi-physics field coupling,multi-factor influence, multi-defect constraint, and triple nonlinear, etc., and the design optimization for plastic forming involves multi-objective, multi-parameter, multi-constraint, nonlinear,high-dimensionality, non-continuity, time-varying, and uncertainty, etc. Therefore, how to achieve accurate and efficient design optimization of products, equipment, tools/dies, and processing as well as materials characterization has always been the research frontier and focus in the field of engineering and manufacturing. In recent years, with the rapid development of computing science, data science and internet of things(Io T), the theories and technologies of design optimization have attracted more and more attention, and developed rapidly in forming process. Accordingly, this paper first introduced the framework of design optimization for plastic forming. Then, focusing on the key problems of design optimization, such as numerical model and optimization algorithm,this paper summarized the research progress on the development and application of the theories and technologies about design optimization in forming process, including deterministic and uncertain optimization. Moreover, the applicability of various modeling methods and optimization algorithms was elaborated in solving the design optimization problems of plastic forming. Finally, considering the development trends of forming technology, this paper discusses some challenges of design optimization that may need to be solved and faced in forming pr

摘要：Silicon-based material is one of the most promising substitutes of widely used graphite anodes for the next generation Li-ion batteries due to its high theoretical capacity,low working potential,environmental friendliness,and abundant natural ***,the huge volume expansion and serious interfacial side reactions during lithiation and delithiation progresses of the silicon anode are the key issues which impede their further practical *** designs of silicon nanostructures are effective ways to address these *** this progress report,we firstly highlight the fundamental scientific problems,and then focus on recent progresses in design,preparation,in-situ characterization methods and failure mechanism of nanostructured silicon anode for high capacity lithium *** also summarize the key lessons from the successes so far and offer perspectives and future challenges to promote the applications of silicon anode in practical lithium batteries.

摘要：Electrochemical CO_(2) reduction reaction (CO_(2) RR) offers a practical solution to current global greenhouse effect by converting excessive CO_(2) into value-added chemicals or fuels. Noble metal-based nanomaterials have been considered as efficient catalysts for the CO_(2) RR owing to their high catalytic activity, long-term stability and superior selectivity to targeted products. On the other hand, they are usually loaded on different support materials in order to minimize their usage and maximize the utilization because of high price and limited reserve. The strong metal-support interaction (MSI) between the metal and substrate plays an important role in affecting the CO_(2) RR performance. In this review, we mainly focus on different types of support materials (e.g., oxides, carbons, ligands, alloys and metal carbides) interacting with noble metal as electrocatalysts for CO_(2) RR. Moreover, the positive effects about MSI for boosting the CO_(2) RR performance via regulating the adsorption strength, electronic structure, coordination environment and binding energy are presented. Lastly, emerging challenges and future opportunities on noble metal electrocatalysts with strong MSI are discussed.

摘要：In the present work, we report nitrogen and phosphorus co-doped 3-D structured carbon nanotube intercalated graphene nanoribbon composite. The graphene nanoribbons are prepared via partial exfoliation of multi-walled carbon nanotubes. In the graphene nanoribbons/CNTs composite, carbon nanotubes play a role of skeleton and support the exfoliated graphene nanoribbons to form the stereo structure. After high temperature heat-treatment with ammonium dihydrogen phosphate, the unique structure reserves both the properties of carbon nanotube and graphene, exhibiting excellent catalytic performance for the ORR with excellent onset and half-wave potential, which is similar to commercial Pt/C electrocatalysts.

摘要：materials exhibiting persistently ultralong room-temperature phosphorescence(RTP)are capturing significant attention due to their long lifetimes,pronounced Stokes shifts,and efficient exciton utilization[1–3].These attributes position RTP materials as ideal candidates for advanced applications in information security,data storage,light-emitting diodes,bioimaging[4–6].

摘要：Ultralong phosphorescent materials have numerous applications across biological imaging, lightemitting devices, X-ray detection and anti-counterfeiting. Triplet-state molecular phosphorescence typically accompanies the singlet-state fluorescence during photoluminescence, and it is still difficult to achieve direct triplet photoemission as ultralong room temperature phosphorescence(RTP). Here, we have designed Zn-IMDC(IMDC, 4,5-imidazoledicarboxylic acid) and Cd-IMDC, two-dimensional(2D)hydrogen-bond organized metal–organic crystalline microsheets that exhibit rarely direct ultralong RTP upon UV excitation, benefiting from the appropriate heavy-atom effect and multiple triplet energy levels. The excitation-dependent and thermally stimulated ultralong phosphorescence endow the metal–organic systems great opportunities for information safety application and temperature-gated afterglow emission. The well-defined 2D microsheets present color-tunable and anisotropic optical waveguides under different excitation and temperature conditions, providing an effective way to obtain intelligent RTP-based photonic systems at the micro-and nano-scales.

摘要：Zn-air batteries have attracted extensive attention for their unique features including high energy density,safety,low cost and environmental ***,due to their poor chargeability and low efficiency,the practical application remains a *** main obstacles are the intrinsic slow reaction kinetics on air cathodes,including oxygen reduction reaction during the discharging process and oxygen evolution reaction during the recharging *** for efficient bifunctional oxygen electrocatalysts is key to solve these *** this review,the configuration and fundamental oxygen electrochemical reactions on air cathodes are briefly introduced for Zn-air batteries ***,the latest bifunctional oxygen electrocatalysts are summarized in ***,the perspectives are provided for the future investigations on bifunctional oxygen electrocatalysts.

摘要：Aqueous zinc-ion batteries(ZIBs)have attracted immense attention for flexible energy storage devices due to their high safety and low ***,conventional flexible aqueous ZIBs will undergo severe capacity loss at subzero temperature due to the inevitably freeze of *** addition,under large bending or stretching strains,the encapsulation of devices would be damaged,which causes the evaporation of water in electrolytes and results in device ***,an anti-freezing and anti-drying gel electrolyte based on polyacrylamide(PAM)and glycerol(Gly)is *** strong hydrogen-bonding interactions between PAM or Gly and water molecules not only avoid the crystallization of the gel electrolyte at low temperatures,but also constrain the free water and restrict its ***,such gel electrolyte displays a high ionic conductivity of 9.65×10^(−5)S cm^(−1)at−40℃.Furthermore,it can restrict the dehydration process when the electrolyte is exposed to ambient *** flexible ZIBs based on such gel electrolyte exhibit excellent electrochemical performance at−40℃and the devices without encapsulation retain 98%of their initial capacity in ambient condition after 30 *** work provides a route to design anti-freezing and anti-drying gel electrolytes for aqueous energy storage devices.