摘要：As promising candidates for energy-storage devices, supercapacitors （SCs） have attracted considerable attention because of their unique features, such as their high power density, outstanding rate capability, excellent cycling performance, and safety. The recent boom in portable electronic devices requires high- performance SCs that are flexible, simplified, thin, and integrated. Tremendous efforts have been directed towards the design and integration of planar micro- SCs （MSCs） based on different active electrode materials by various methods. This review highlights the recent developments in the device design of flexible planar MSCs and their integration with other electronic devices. The current challenges and future prospects for the development of flexible MSCs are also discussed.

摘要：A number of novel 2-（2-arylmorpholino-4-yl）ethyl 1-（4-chlorobenzoyl）-5-methoxy-2-methyl-lH-indol-3- acetate hydrochlorides were synthesized and tested for their cyclooxygenase （COX-1 and COX-2） inhibition prop- erties in vitro. Many of these compounds exhibited moderate to good selective COX-2 inhibition, and subtle struc- tural changes in the substituents on the side chain of the ester moiety altered the inhibitory properties significantly. 2-[2-（4-Butoxyphenyl）morpholino-4-yl]ethyl 1-（4-chlorobenzoyl）-5-methoxy-2-methyl-IH-indol-3-acetate hydro- chloride （If）, showed good selective COX-2 inhibitory activity （Selective index （SI） 182）, which is comparative with celecoxib （SI 214）, a COX-2 inhibitor of diarylpyrazoles. While 2-[2-（2,4-dichloro-5-fluorophenyl）mor- pholino-4-yl]ethyl 1-（4-chlorobenzoyl）-5-methoxy-2-methyl-IH-indol-3-acetate hydrochloride （lg）, showed greater selective COX-2 inhibitory activity （SI 358） than celecoxib. Both compounds were identified as compromising de- rivatives in this class to reduce the side effects generated by nonsteroidal anti-inflammatory drugs （NSAIDs） indo- methacin.

摘要：Chemoselective hydrodeoxygenation of vanillin is of great importance in converting biomass into high value-added ***,we describe a facile photochemical route to access palladium single atoms and clusters supported on silicoaluminophosphate-31(SAPO-31)as a highly active,chemoselective,and reusable catalyst for hydrodeoxygenation of *** by aberration-corrected high-angle annular dark-field scanning transmission electron microscopy,extended X-ray absorption fine structure measurement,and CO-absorbed diffuse reflectance infrared Fourier transform spectroscopy reveal the atomically dispersed palladium single atoms and clusters are loosely bonded and randomly dispersed,without forming strong palladium-palladium metallic bonding,over the SAPO-31 *** catalyst,with a full metal availability to the reactants,exhibits exceptional catalytic activity(TOF:3,000 h^(−1),Yield:>99%)in the hydrodeoxygenation of vanillin toward 2-methoxy-4-methylphenol(MMP)under mild conditions(1 atm,80°C,30 min),along with excellent stability,scalability(up to 100-fold),and wide substrate *** superior catalytic performance can be attributed to the synergistic effect of the positively charged palladium single atoms and fully exposed clusters,as well as the strong metal-support *** work may offer a new avenue for the design and synthesis of fully exposed metal catalysts with targeted functionalities.

摘要：This review describes work presented in the 2014 inaugural Tsinghua University Press-Springer Nano Research Award lecture, as well as current and future opportunities for nanoscience research at the interface with brain science. First, we briefly summarize some of the considerations and the research journey that has led to our focus on bottom-up nanoscale science and technology. Second, we recapitulate the motivation for and our seminal contributions to nanowire- based nanoscience and technology, including the rational design and synthesis of increasingly complex nanowire structures, and the corresponding broad range of ＂applications＂ enabled by the capability to control structure, com- position and size from the atomic level upwards. Third, we describe in more detail nanowire-based electronic devices as revolutionary tools for brain science, including （i） motivation for nanoelectronics in brain science, （ii） demonstration of nanowire nanoelectronic arrays for high-spatial/high-temporal resolution extracellular recording, （iii） the development of fundamentally-new intracellular nanoelectronic devices that approach the sizes of single ion channels, （iv） the introduction and demonstration of a new paradigm for innervating cell networks with addressable nanoelectronic arrays in three-dimensions. Last, we conclude with a brief discussion of the exciting and potentially transformative advances expected to come from work at the nanoelectronics-brain interface.

摘要：Coal gasification fine slag(FS)is a typical solid waste generated in coal *** current disposal methods of stockpil-ing and landfilling have caused serious soil and ecological *** recovery and the high-value utilization of residual carbon(RC)in FS are the keys to realizing the win-win situation of the coal chemical industry in terms of economic and environmental *** structural properties,such as pore,surface functional group,and microcrystalline structures,of RC in FS(FS-RC)not only affect the flotation recovery efficiency of FS-RC but also form the basis for the high-value utilization of *** this paper,the characteristics of FS-RC in terms of pore structure,surface functional groups,and microcrystalline structure are sorted out in accordance with gasification type and FS particle *** reasons for the formation of the special structural properties of FS-RC are analyzed,and their influence on the flotation separation and high-value utilization of FS-RC is *** methods based on the pore structural characterist-ics of FS-RC,such as ultrasonic pretreatment-pore-blocking flotation and pore breaking-flocculation flotation,are proposed to be the key development technologies for improving FS-RC recovery in the *** design of low-cost,low-dose collectors containing polar bonds based on the surface and microcrystalline structures of FS-RC is proposed to be an important breakthrough point for strengthening the flotation efficiency of FS-RC in the *** high-value utilization of FS should be based on the physicochemical structural proper-ties of FS-RC and should focus on the environmental impact of hazardous elements and the recyclability of chemical waste liquid to es-tablish an environmentally friendly utilization *** review is of great theoretical importance for the comprehensive understand-ing of the unique structural properties of FS-RC,the breakthrough of the technological bottleneck in the e

摘要：In this work,a set of novel Cu2ZnSnS4/Bi2WO6(CZTS/BWO)two-dimensional(2 D)/two-dimensional(2 D)type-Ⅱheterojunctions with different CZTS weight ratios(1%,2%,and 5%)were successfully synthesized via a brief secondary solvothermal *** successful formation of the heterojunctions was affirmed by characterization methods such as X-ray photoelectron spectroscopy and high-resolution transmission electron *** photocatalytic activity results showed that the prepared CZTS/BWO heterojunctions had excellent photocatalytic behaviors for organic degradation,especially when the mass fraction of CZTS with respect to BWO in the composite was 2%.Moreover,the addition of hydrogen peroxide(H2O2)could further improve the dye and antibiotic degradation *** reinforced photocatalytic and photo-Fenton degradation performance were primarily attributable to the introduction of BWO,which afforded increased active sites,expanded the solar spectral response range,and accelerated the cycle of Cu(Ⅱ)/Cu(Ⅰ);after four cycling times,its catalytic activity did not decrease *** addition,reasonable hypotheses of the photocatalytic and photo-Fenton catalytic mechanisms were *** study is expected to provide a visual approach for designing a novel photo-Fenton catalyst to jointly utilize the photocatalytic and Fenton activities,which can be better applied to the purification of residual organics in wastewater.

摘要：开发具有宽温度范围、无枝晶生长和耐腐蚀的电解质对于水系金属锌电池的实际应用至关重要.本研究开发了一种γ-戊内酯共溶剂,以扩大水系电解质的工作温度范围并稳定锌金属阳极的界面.这种弱溶剂作为强氢键配体和“稀释剂”,高效地打破了自由水分子之间的氢键,从而提高了电解液的温度耐受性和化学稳定性.同时,γ-戊内酯也可以吸附在阳极表面从而促进锌的成核和调节锌的生长织构,实现无枝晶的锌沉积.这种优化后的电解质可以使对称电池的寿命达到2160 h,并可以在-50~80℃的宽温度范围内稳定运行.相应的ZnⅡ活性炭电容器和ZnⅡ聚苯胺电池在8100和1600次循环后,容量保持率分别为92.5%和85%.这种弱溶剂调控氢键和锌离子的溶剂鞘的机制为先进的水系电解质的设计提供了新的见解.

摘要：The rational design of polymer acceptors with strong and broad absorption is critical to improve photovoltaic *** this work,a new polymer acceptor PY9-T based on heptacyclic benzotriazole(Y9-C16)as a building block and thiophene unit as the linking unit was synthesized,which exhibited a low bandgap(1.37 eV)and a high extinction coefficient of the neat film(1.44×10^(5) cm^(−1)).When PY9-T was blended with the wide bandgap polymer donor PBDB-T,the all-polymer solar cells(APSCs)showed a high power conversion efficiency(PCE)of 10.45%with both high open circuit voltage of 0.881 V and short-circuit current density of 19.82 mA/cm^(2).In addition,APSCs based on PY9-T show good thermal stability,as evidenced by slight changes morphologies when annealed at 100℃.These results suggest that Y9-C16 provides a new building block to develop efficient and stable polymer acceptors.

摘要：In this study,we designed and synthesized a series of phthalazinone acridine derivatives as dual PARP and Topo *** assays indicated that most of the compounds significantly inhibited multiple cancer cells *** addition,all the compounds displayed Topo Ⅱ inhibition activity at 10 mol/L,and also possessed good PARP-1 inhibitory *** mechanistic studies showed that compound 9 a induced remarkable apoptosis and caused prominent S cell cycle arrest in HCT116 *** study suggested that 9 a inhibiting Topo and PARP concurrently can be a potential lead compound for cancer therapy.

摘要：The method to fluorinate the terminal group has achieved remarkable success and been widely used to fine-tune the intrinsic properties of organic acceptor *** to chlorination,however,it gets less attention and remains ambiguous effect on organic photovoltaic(OPV)***,a new non-fullerene acceptor named Y19 was reported with benzotriazole as the electron-deficient core and 2Cl-ICs as the strong electron-withdrawing end groups.Y19 exhibits a wide film absorption band from 600 nm to 948 nm and low LUMO(the lowest unoccupied molecular orbital)energy level of−3.95 *** devices based on PM6:Y19 show high-power conversion efficiency(PCE)of 12.76%with high open-circuit voltage(Voc)of 0.84 V,short-circuit current density(Jsc)of 22.38 mA/cm2 and fill factor(FF)of 68.18%.Broad external quantum efficiency(EQE)response of over 60%in the range of 480−860 nm can be *** study demonstrates that chlorination,as a low-cost molecular design strategy,has its own superiorities to improve device performance and promote the potential application in OPV.