摘要：Revealing the structure evolution of interfacial active species during a dynamic catalytic process is a challenging but pivotal issue for the rational design of high-performance ***,we successfully prepare sub-nanometric Pt clusters(~0.8 nm)encapsulated within the defects of CeO_(2)nanorods via an in-situ defect engineering *** as-prepared Pt@d-CeO_(2)catalyst significantly boosts the activity and stability in the water-gas shift(WGS)reaction compared to other *** on controlled experiments and complementary(in-situ)spectroscopic studies,a reversible encapsulation induced by active site transformation between the Pt^(2+)-terminal hydroxyl and Pt^(δ+)-O vacancy species at the interface is revealed,which enables to evoke the enhanced *** findings not only offer practical guidance for the design of high-efficiency catalysts but also bring a new understanding of the exceptional performance of WGS in a holistic view,which shows a great application potential in materials and catalysis.

摘要：The nitrogen-coordinated metal single-atom catalysts(M−N−C SACs)with an ultra-high metal loading synthetized by direct high-temperature pyrolysis have been widely ***,most of metal single atoms in these catalysts were buried in the carbon matrix,resulting in a low metal utilization and inaccessibility for adsorption of reactants during the catalytic ***,we reported a facile synthesis based on the hard-soft acid-base(HSAB)theory to fabricate Co single-atom catalysts with highly exposed metal atoms ligated to the external pyridinic-N sites of a nitrogen-doped carbon *** from the highly accessible Co active sites,the prepared Co−N−C SAC exhibited a superior oxygen reduction reactivity comparable to that of the commercial Pt/C catalyst,showing a high turnover frequency(TOF)of 0.93 e^(−)·s^(-1)·site^(-1)at 0.85 V ***,far exceeding those of some representative SACs with a ultra-high metal *** work provides a rational strategy to design and prepare M−N−C single-atom catalysts featured with high site-accessibility and site-density.

摘要：Covalent organic frameworks(COFs)are garnering significant interest in photocatalytic CO_(2) ***,their limited efficiency in separating photogenerated carriers and the scarcity of catalytic sites lead to suboptimal photocatalytic *** we develop a molecular engineering approach to design a pyrene-based COF(PyTa-H COF)confined cobalt single atoms photocatalyst(Co SACs)for CO_(2) *** moiety is introduced to enhance visible-light harvesting capability and improve charge separation in the ***,Co SACs enhance the photocatalytic activity by accelerating the migration of photo-induced carriers and reducing the reaction energy of the rate-determining ***,PyTa-H@Co achieves a CO production rate of 18.36 mmol g^(−1) h^(−1) and a selectivity of 94%in 4 h under visible light irradiation,which is comparable to the reported best-performing *** functional theory calculations reveal that the Co SACs greatly stabilize*COOH and significantly reduce the energy of the decisive step,leading to outstanding photocatalytic *** work,through molecular engineering design,highlights the critical relationship between catalyst structure and function in enhancing photocatalytic efficiency.

摘要：As surgical procedures transition from conventional resection to advanced tissue-regeneration technologies,human disease therapy has witnessed a great leap *** particular,three-dimensional(3D)bioprinting stands as a landmark in this setting,by promising the precise integration of biomaterials,cells,and bioactive molecules,thus opening up a novel avenue for tissue/organ *** by the editorial board of Bio-Design and Manufacturing,this review brings together a cohort of leading young scientists in China to dissect the core functionalities and evolutionary trajectory of 3D bioprinting,by elucidating the intricate challenges encountered in the manufacturing of transplantable *** further delve into the translational pathway from scientific research to clinical application,emphasizing the imperativeness of establishing a regulatory framework and rigorously enforcing quality-control ***,this review outlines the strategic landscape and innovative achievements of China in this field and provides a comprehensive roadmap for researchers worldwide to propel this field collectively to even greater heights.

摘要：Conjugated polymers exhibit exceptional adaptability in flexible thin-film transistors,owing to their inherent flexibility and high charge ***,achieving conjugated polymers that demonstrate both high mobility and stability under mechanical stress,such as bending or stretching,remains a significant *** this study,we synthesized an ethylene-bridged conjugated polymer,PDPPVIDT,derived from methyl-side diketopyrrolopyrrole(DPP)and indacenodithiophene(IDT)aldehydes,using an environmentally friendly Knoevenagel condensation reaction under mild conditions,resulting in a moderate yield with promising *** characterization techniques revealed enhanced backbone planarity with stableπ-πstacking,while thin films of PDPPVIDT displayed a nearamorphous nature due to the conformational isomerism of the ethylene *** structure enables simultaneous charge transport and ***,flexible organic thinfilm transistor(OTFT)devices based on PDPPVIDT demonstrated excellent hole mobility(μh)reaching up to 1.70 cm^(2) V^(−1) s^(−1),along with high mechanical bending *** work underscores the potential of vinyl-bridged donor-acceptor conjugated polymers,highlighting the industrial adaptability of their production process and offering new insights for the design and synthesis of future flexible electronic materials.

摘要：Organic photovoltaic(OPV)is one of the most promising technologies for powering indoor electronic *** high-performance indoor organic photovoltaics(IOPV)require medium bandgap materials to absorb visible light efficiently and reduce energy ***,state-of-theart A-DA’D-A type small molecule acceptors(SMAs)have absorptions in the near-infrared region which mismatches with the room *** this work,two medium bandgap ADA’D-A type SMAs BTOL-Br and DFOL-Br were synthesized by a molecular synergetic modification strategy for the applications in *** results show that DFOL-Br with replacing the A’unit of benzothiadiazole in BTOL-Br by difluorine substituted benzene ring,exhibits blue-shifted absorption spectra and an up-shifted lowest unoccupied molecular orbital(LUMO)energy level than those of *** blending the SMAs with a polymer donor PBQx-TCl,the DFOL-Br-based film shows more ordered molecular packing and suitable phase *** a result,the DFOLBr-based device achieves a higher indoor efficiency of 26.8% under a 2600 K light-emitting diode lamp at 2000 lux than that of the BTOL-Br-based one(23.2%).This work indicates that the synergetic modification is an effective strategy for preparing medium bandgap A-DA’D-A type SMAs,which may become a useful SMA design guideline for developing highperformance IOPVs.

摘要：Carbon molecular sieve membranes(CMSMs)are a class of porous membranes inherited with excellent thermal stability,high tolerance and superior mechanical *** to their nanoporous structures,CMSMs usually hold significant potential for gas separation ***,hyper-crosslinked ionic polymer(HIP)membranes possess a highly crosslinked nitrogen-rich framework,high thermal stability together with exceptional mechanical strength,making them excellent precursors for the CMSMs *** pyrolysis of HIP membranes,the resulting CMSMs featured with nitrogen functional sites exhibit strong interactions with CO_(2),which significantly reduces the CO_(2)permeability while other gas molecules continue to flow through the nanoporous *** resultant CMSMs exhibited excellent H_(2)/CO_(2)selectivity with values of 10.75 and 7.09,together with ultra-high H_(2)permeability of 3052 and 9181 barrer,respectively,surpassing the Robeson upper *** preparation route towards CMSMs with high nitrogen content from HIP can significantly enrich the rational design and synthesis strategies of high-performance gas separation CMSM materials.

摘要：Using 2-dicyanomethylene-3-cyano-4,5,5-trimethyl-2,5-dihydrofuran(TCF)as a near-infrared fluorescent chromophore,we designed and synthesized a TCF-based fluorescent probe TCF-NS by introducing 2,4-dinitrophenyl ether as the recognized site for H_(2)*** probe TCF-NS displayed a rapid-response fluorescent against H_(2)S with high sensitivity and selection but had no significant fluorescence response to other ***,TCF-NS was applied to sense H_(2)S in living cells successfully with minimized cytotoxicity and a large Stokes shift.

摘要：The photocatalytic degradation kinetics of carbofuran was optimized by central composite design based on response surface methodology for the first time. Three variables, TiO2 concentration, initial pH value and the concentration of carbofuran, were selected to determine the dependence of degradation efficiencies on independent variables. Response surface methodology modeling results indicated that the degradation efficiency of carbofuran was highly affected by the initial pH value and the concentration of carbofuran. Then nine degradation intermediates were detected by HPLC/MS/MS. The Frontier Electron Densities of carbofuran were calculated to predict the active sites on carbofuran attacked by hydroxyl radicals and photoholes. Point charges were used to elucidate the chemisorption pattern on TiO2 catalysts during the photocatalytic process. By combining the experimental results and calculation data, the photocatalytic degradation pathways of carbofuran were proposed, including the addition of hydroxyl radicals and the cleavage of the carbamate side chain.

摘要：Li-metal anodes are one of the most promising energy storage systems that can considerably exceed the current technology to meet the ever-increasing demand of power applications. The apparent cycling performances and dendrite challenges of Li-metal anodes are highly influenced by the interface layer on the Li-metal anode because the intrinsic high reactivity of metallic Li results in an inevitable solid-state interface layer between the Li-metal and electrolytes. In this review, we summarize the recent progress on the interfacial chemistry regarding the interactions between electrolytes and ion migration through dynamic interfaces. The critical factors that affect the interface formation for constructing a stable interface with a low resistance are reviewed. Moreover, we review emerging strategies for rationally designing multiple-structured solid-state electrolytes and their interfaces, including the interfacial properties within hybrid electrolytes and the solid electrolyte/electrode interface. Finally, we present scientific issues and perspectives associated with Li-metal anode interfaces toward a practical Li-metal battery.