摘要：Ionic skins that demonstrate great advantages in the mechanical properties and multiple sensory capabilities are regarded as an attractive candidate to mimic functions of human ***,human skin is vulnerable to be damaged under long-time sunlight irradiation,and most of the current ionic skins also lack a protection against harmful ultraviolet and infrared ***,this work develops a multifunctional ionic skin based on ionic conductive and light-managing hydrogels via a facile one-step locally confined *** is mechanically adaptable,able to modulate light in the broadband solar spectrum,and protect human skin from the harmful ultraviolet and infrared ***,without complicated processing,the ionic skin enables human-machine interactions via wireless and optical camouflaged Morse *** believe this work will promote the development of smart wearable devices with multiple customizable functions.

摘要：抛光垫修整臂的新设计能在抛光垫和修整盘对使用寿命期间,采用闭环控制(CLC)提高修整性能。测得的抛光垫修整器的力矩用于在现场实时监控修整和抛光过程。通过调节修整器的下压力以补偿工艺的偏移(例如,随修整盘老化而引起的金刚石研磨性的损失),CLC系统在整个抛光垫使用寿命期间维持工艺性能。

摘要：Cobalt‐based materials have been considered as promising candidates to electrocatalyze water ***,the structure‐performance correlation remains largely elusive,due to the com‐plex material structures and diverse performance‐influencing factors in those Co‐based *** this work,we designed two cobalt phosphates with distinct Co symmetry to explore the effect of coordination symmetry on electrocatalytic water *** two analogues have similar mor‐phology,Co valence and 6‐coordinated Co octahedron,but with different coordination *** contrast to symmetric Co_(3)(PO_(4))2·8H_(2)O,asymmetric NH_(4)CoPO_(4)·H_(2)O exhibited enhanced electrocata‐lytic water oxidation activity in a neutral aqueous *** is proven that,by experimental and theoretical studies,the asymmetric Co coordination sites can facilitate the surface reconstruction under anodic polarization to boost the *** on this contrastive platform with distinct symmetry differences,the preferred configuration in cobalt‐oxygen octahedrons for water oxidation has been straightforwardly assigned.

摘要：Photocatalysis activated by visible light remains highly ***,we report novel MoSe2/ZnO/ZnSe(ZM)hybrids fabricated via a simple hydrothermal method for photocatalytic reduction of Cr(VI)under visible light *** hybrids show improved photocatalytic reduction ability under visible light irradiation compared to pure ZnO owing to good visible light absorption and rapid electron transfer and *** ZM hybrid shows the highest Cr(VI)reduction rate of 100%.Moreover,the photocatalytic Cr(VI)reduction process is mainly controlled by photoinduced electrons.

摘要：Synchrotron radiation-based micro-Laue technique has showcased great application potentials in materials science study for its unprecedented crystal orientation and lattice strain/stress *** we report the updated progress in the development of the micro-Laue technique on the X-ray test beamline at Shanghai Synchrotron Radiation *** far,40μm(h)×50μm(v)X-ray beam spot is routinely obtained,with the convergent angle of 0.2 mrad(h)×0.12 mrad(v).Area scans are conducted on a GH3535 Nibased superalloy base metal and weld joint with the same chemical *** analyzing the tremendous amount of Laue diffraction patterns using in-house developed software packages,the crystal orientation,elastic strain,and defect distributions are mapped and *** a successful proof-of-principle study offers first-hand experience on the further optimization of the design and construction of the scanning micro-Laue facility on the superbend beamline with improved spatial resolution and multiple functions for simultaneous chemical fluorescence mapping and in-situ microstructural evolution *** micro-Laue diffraction beamline at Shanghai Synchrotron Radiation Facility will provide a versatile and powerful tool for the orientation and strain/stress mapping combined with phase identification with micron-sized spatial resolution.

摘要：The development of cost-effective and highperformance electrocatalysts has been increasingly studied to mitigate upcoming energy and environmental *** and heterointerface engineering have played significant roles in the rational design of electrocatalysts and modulation of their electrocatalytic ***,the synergistic effect between amorphization and heterointerfaces has been scarcely *** a proof-of-concept attempt,we develop amorphous FeMo(a-FeMo)electrocatalysts with an abundance of heterointerfaces that are composed of amorphous components and evaluate their electrocatalytic performances toward the nitrogen reduction reaction and oxygen evolution reaction(OER).Benefitting from the synergistic effect between the amorphous nature of the a-FeMo electrocatalysts,which offer a high density of active sites,and significant electron redistribution at the heterointerfaces,the electrocatalysts exhibit a high Faradaic efficiency of 29.15%,an elevated yield rate of 71.78μg_(NH_(3)) mg_(cat.)^(-1) h^(-1) with long-term stability at a potential of-0.1V *** hydrogen electrode and excellent electrocatalytic activity toward the *** study provides a promising and effective method for the rational design of low-cost heterogeneous catalysts with desirable efficiency,selectivity,and stability.

摘要：Direct carbon solid oxide fuel cells(DC-SOFCs)are promising,green,and efficient power-generating devices that are fueled by solid carbons and comprise all-solid-state *** suitable anode materials for DC-SOFCs is a substantial scientific *** we investigated the use of La_(0.75)Sr_(0.25)Cr_(0.5)Mn_(0.5)O_(3)-δ−Ce_(0.8)Gd_(0.2)O_(1.9)(LSCM−GDC)composite electrodes as anodes for La_(0.9)Sr_(0.1)Ga_(0.8)Mg_(0.2)O_(3)-δelectrolyte-based DC-SOFCs,with Camellia oleifera shell char as the carbon *** LSCM−GDC-anode DC-SOFC delivered a maximum power density of 221 mW/cm^(2) at 800℃ and it significantly improved to 425 mW/cm^(2) after Ni nanoparticles were introduced into the LSCM−GDC anode through wet *** microstructures of the prepared anodes were characterized,and the stability of the anode in a DC-SOFC and the influence of catalytic activity on open circuit voltage were *** above results indicate that LSCM–GDC anode is promising to be applied in DC-SOFCs.

摘要：Solar-driven vapor generation by localized solar heating of a photothermal material is an environmentally friendly approach for seawater desalination and wastewater *** this work,inspired by the leaf transpiration in nature,we designed a novel bionic leaf to realize highly efficient solar vapor *** leaf-inspired three-dimensional(3D)material structure had a hydrophilic polyvinyl alcohol(PVA)foam layer(equivalence to the mesophyll tissue layer in a leaf)with high porosity and low thermal conductivity,a photothermal polypyrrole(PPy)layer(equivalence to the chlorophyll layer in a leaf)coated on the PVA foam,and a micro/nano-scale porous hydrophobic surface layer(equivalence to the stomal layer in a leaf).The PVA network had microchannels for water transportation and reducing water evaporation enthalpy,the PPy layer absorbed and converted solar energy to heat water locally,and the hydrophobic porous surface layer enhanced the rate of vapor *** asfabricated vapor generator based on the bionic-leaf structure achieved an impressive high evaporation rate of 3.09 kg m^(−2) h^(−1) under one sun irradiation(1 kW m^(−2)).The prototype vapor generator desalinated and purified brine and seawater successfully under natural *** solar vapor generator based on the biomimetic structure provides a potential low-cost and highly efficient water purification technology to help mitigate the global water crisis using sustainable energy.

摘要：The constitutive behavior of microcrystals remains mysterious since very little,or no information regarding plastic deformation in the measured stress-strain curve is available due to plastic ***,the measured stress-strain curves vary greatly under different control modes,while constitutive behavior should remain unaffected by test *** these reasons,probing the real constitutive behavior of microcrystals has long been a challenge because the nonlinear dynamical behaviors of micromechanical testing systems are ***,we perform and carefully analyze the experiments on singlecrystal aluminum micropillars under displacement control and load *** interpret these experimental results,a lumpedparameter physical model based on the principle of micromechanical testing is developed,which can directly relate nonlinear dynamics of the micromechanical testing system to the constitutive behavior of *** reveals that some stages of the measured stress-strain curve attributed to the control algorithm are not related to constitutive *** solving the nonlinear dynamics of the micromechanical testing system,intense plastic instability(large strain burst)starting from the equilibrium state is attributed to the strain-softening stage of *** studies are also performed to reduce the influence of plastic instability on the measured *** study provides critical insights for developing various constitutive models and designing a reliable micromechanical testing system.

摘要：The three-dimensional (3D)bioprinting technology has progressed tremendously over the past *** controlling the size, shape,and architecture of the bioprinted constructs,3D bioprinting allows for the fabrication of tissue/organ-like constructs with strong structural-functional similarity with their in vivo counterparts at high *** bioink,a blend of biomaterials and living cells possessing both high biocompatibility and printability,is a critical component of *** particular, gelatin methacryloyl (GelMA)has shown its potential as a viable bioink material due to its suitable biocompatibility and readily tunable physicochemical *** GelMA-based bioinks and relevant bioprinting strategies for GelMA bioprinting are briefly reviewed.