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| 1 | Highly stretchable and reliable graphene oxide- reinforced liquid gating membranes for tunable gas/liquid transport显示文摘The ability of membrane technologies to dynamically tune the transport behavior for gases and liquids is critical for their applications.Although various methods have been developed to improve membrane success,tradeoffs still exist among their properties,such as permeability,selectivity,fouling resistance,and stability,which can greatly affect the performance of membranes.Existing elastomeric membrane designs can provide antifracture properties and flexibility;however,these designs still face certain challenges,such as low tensile strength and reliability.Additionally,researchers have not yet thoroughly developed membranes that can avoid fouling issues while realizing precise dynamic control over the transport substances.In this study,we show a versatile strategy for preparing graphene oxide-reinforced elastomeric liquid gating membranes that can finely modulate and dynamically tune the sorting of a wide range of gases and liquids under constant applied pressures.Moreover,the produced membranes exhibit antifouling properties and are adaptable to different length scales,pressures,and environments.The filling of graphene oxide in the thermoplastic polyurethane matrix enhances the composites through hydrogen bonds.Experiments and theoretical calculations are carried out to demonstrate the stability of our system.Our membrane exhibits good stretchability,recovery,and durability due to the elastic nature of the solid matrix and dynamic nature of the gating liquid.Dynamic control over the transport of gases and liquids is achieved through our optimized interfacial design and controllable pore deformation,which is induced by mechanical stimuli.Our strategy will create new opportunities for many applications,such as gas-involved chemical reactions,multiphase separation,microfluidics,multiphase microreactors,and particulate material synthesis. | Wei Lv Zhizhi Sheng Yinglin Zhu Jing Liu Yi Lei Rongrong Zhang Xinyu Chen Xu Hou | 2020 | Microsystems & Nanoengineering2020，6，1： | 3 |
| 2 | Crystal structures and third - order NLO properties in DMF solution of Co(Ⅱ) - bpfp coordination polymers ( bpfp= N, N' bis (pyridylformyl) piperazine 显示文摘 | HONG XU YINGLIN SONG HONGWEI HOU | 2004 | Inorganica Chimica Acta2004，357，12： | 1 |
| 3 | Enabling ultranarrow blue emission linewidths in colloidal alloy quantum dots by decreasing the exciton fine structure splitting and exciton–phonon coupling显示文摘The realization of colloidal alloy quantum dots(QDs)with narrow spectral linewidths requires minimization of the contributions of inhomogeneous and homogeneous broadening to the ensemble spectrum.Recently,there has been remarkable progress in eliminating the inhomogeneous contribution by controlling the size distribution of the QDs.However,considerable challenges remain in suppressing the homogeneous broadening,in terms of both intrinsic principles and rational synthetic routes.We find that ground-state exciton fine structure splitting and exciton-phonon coupling play a pivotal role in the homogeneous broadening mechanism.Here we demonstrate that the elimination of the lattice mismatch strain by using a coherent strain structure can decrease the light-heavy hole splitting,thus suppressing the asymmetric broadening of the emission on the high energy side.Besides,the improvement of the uniformity of the alloy by using a stepwise ion exchange strategy can weaken the exciton-longitudinal optical(LO)-phonon interactions,further minimizing the homogeneous broadening.As a result,the final alloy QD products exhibit a widely tunable blue emission wavelength(445-470 nm)with the narrowest ensemble photoluminescence full width at half maximum(FWHM)of 10.1-13.5 nm(or 58.4-75.3 meV).Our study provides a potential strategy for other semiconductor nanocrystals with ultranarrow spectral linewidths. | Jinke Bai Linfeng Wang Tingting Zhang Tianyi Hou Meilun Zhang Bing Xu Dongyu Li Xiao Jin Qinghua Li Yuxiao Wang Xueru Zhang Yinglin Song | 2023 | Nano Research2023，16，1： | 0 |
| 4 | Mass transport of a mesoscale eddy in the South China Sea identified by a simulated passive tracer显示文摘To quantitatively investigate the water mass transport of mesoscale eddies,the mass transport induced by a simulated anticyclonic eddy in the South China Sea was evaluated by using the Regional Ocean Modelling System(ROMS)and a built-in passive tracer module.The results indicate that the eddy can trap and transport 51%of the initial water in the eddy core to 689 km from its origin during its lifetime of 100 days,with a stable loss rate of 6‰per day.During propagation,there is drastic horizontal water exchange between the inside and outside of the eddy.Meanwhile,the vertical mass transport is signifi cant,and 65%of the water initially in the mixed layer of the eddy is eventually detrained into the subsurface.A tracer budget analysis of eddy shows that advection is the dominant dynamic process of transport,while the eff ect of mixing is weak,and horizontal process plays a controlling role.Horizontal and vertical advection exhibit opposite patterns and strongly off set each other.Particularly,a distinct dipole pattern is found in the local velocity fi eld of the eddy,with signifi cant convergence(downwelling)and divergence(upwelling)zones in the anterior and posterior of the eddy,respectively,which is likely related to the driving mechanism of the westward propagation of the eddy.The dipole further induces a vertical overturning cell,through which the surface water in the anterior of the eddy detrains into the subsurface by downwelling and resurface from the posterior of the eddy by upwelling and gradually spreads out of the eddy.The temporal variability in the tracer budget is signifi cant,in which horizontal advection is dominant.The propagation acceleration and temporal derivative of the deformation rate are highly correlated with tracer transport,suggesting the potential eff ect of the temporal instability of eddies on the eddy mass transport. | Jun ZHAO Fan WANG Shan GAO Yinglin HOU Kai LIU | 2022 | Journal of Oceanology and Limnology2022，40，2： | 0 |
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