摘要：Due to their unique surface chemistry,highly adjustable metal components,hydrophilicity,and high carrier concentrations,MXenes are applied in a variety of *** to other two-dimensional(2D)materials,building heterostructures with additional materials to form a 3D porous architecture for MXenes can significantly enhance their functionality and ***,the open structures and well-defined pathways of these 3D structured MXenes can improve ionic and electronic transport,thereby promoting their applications in electrochemical energy storage,sensing,catalysis,and *** this review,the recent efforts made on preparing 3D porous MXenes with heterostructures,focusing on MXenes/C,MXenes/inorganics,and MXenes/polymers were *** discussion covers aspects ranging from the design to synthesis of 3D porous MXenes,and their applications in photocatalysis,environmental monitoring and electrochemical energy *** review is concluded by presenting the prospects and insights on exploring the relationships between the porosity formation mechanisms,properties and applications of the 3D porous MXenes *** review can provide meaningful guidance for the design,fabrication and application of 3D porous MXenes in high-performance materials and devices.

摘要：Selective laser melting(SLM)is an emerging layer-wise additive manufacturing technique that can generate complex components with high ***-reinforced aluminum matrix composites(PAMCs)are important materials for various applications due to the combined properties of Al matrix and *** the advantages of SLM technology and PAMCs,the novel SLM PAMCs have been developed and researched in recent ***,the current research progress about the SLM PAMCs is ***,special attention is paid to the solidification behavior of SLM ***,the important issues about the design and fabrication of high-performance SLM PAMCs,including the selection of reinforcement,the influence of parameters on the processing and microstructure,the defect evolution and phase control,are highlighted and discussed ***,the performance and strengthening mechanism of SLM PAMCs are systematically figured ***,future directions are pointed out on the advancement of high-performance SLM PAMCs.