摘要：The polarization switching plays a crucial role in controlling the final products in the catalytic *** effect of polarization orientation on nitrogen reduction was investigated by anchoring transition metal atoms to form active centers on ferroelectric material In_(2)Se_(3).During the polariza-tion switching process,the difference in surface electrostatic potential leads to a redistribution of electronic *** affects the interaction strength between the adsorbed small molecules and the catalyst substrate,thereby altering the reaction *** addition,the surface states must be considered to prevent the adsorption of other small molecules(such as*O,*OH,and*H).Further-more,the V@↓-In_(2)Se_(3)possesses excellent catalytic properties,high electrochemical and thermody-namic stability,which facilitates the catalytic *** learning also helps us further ex-plore the underlying *** systematic investigation provides novel insights into the design and application of two-dimensional switchable ferroelectric catalysts for various chemical processes.

摘要：Wearable bioelectronic devices have the capacity for real-time human health monitoring,the provision of tailored services,and natural interaction with smart ***,these wearable bioelectronic devices rely on conventional rigid batteries that are frequently charged or replaced and are incompatible with the skin,leading to a discontinuity in complex therapeutic tasks related to human health monitoring and human-machine *** triboelectric nanogenerator(TENG)is a high-efficiency energy harvesting technology that converts mechanical into electrical energy,effectively powering wearable bioelectronic *** study comprehensively overviews recent advances in stretchable TENG for use in wearable bioelectronic *** working mechanism of stretchable TENG is initially explained.A comprehensive discussion presents the approaches for fabricating stretchable TENG,including the design of stretchable structures and the selection of stretchable ***,applications of wearable bioelectronic devices based on stretchable TENG in human health monitoring(body movements,pulse,and respiration)and human-machine interaction(touch panels,machine control,and virtual reality)are ***,the challenges and developmental trends regarding wearable bioelectronic devices based on stretchable TENG are elaborated.

摘要：A novel self-recoverable mechanoluminescent phosphor Ca_(5)Ga_(6)O_(14)∶Eu^(3+)was developed by the high-tem-perature solid-state reaction method,and its luminescence properties were ***_(5)Ga_(6)O_(14)∶Eu^(3+)can produce red mechanoluminescence,and importantly,it shows good *** mechanoluminescence of Ca_(5)Ga_(6)O_(14)∶Eu^(3+)re-sults from the piezoelectric field generated inside the material under stress,rather than the charge carriers stored in the traps,which can be confirmed by the multiple cycles of mechanoluminescence tests and heat treatment *** mechanoluminescence color can be turned from red to green by co-doping varied concentrations of Tb^(3+),which may be meaningful for encrypted letter *** encryption scheme for secure communication was devised by harness-ing mechanoluminescence patterns in diverse shapes and ASCII codes,which shows good encryption *** results suggest that the mechanoluminescence phosphor Ca_(5)Ga_(6)O_(14)∶Eu^(3+),Tb^(3+)may be applied to the optical infor-mation encryption.

摘要：Magnesium(Mg)is a promising alternative to lithium(Li)as an anode material in solid-state batteries due to its abundance and high theoretical volumetric ***,the sluggish Mg-ion conduction in the lattice of solidstate electrolytes(SSEs)is one of the key challenges that hamper the development of Mg-ion solid-state *** various Mg-ion SSEs have been reported in recent years,key insights are hard to be derived from a single literature ***,the structure-performance relationships of Mg-ion SSEs need to be further unraveled to provide a more precise design guideline for *** this viewpoint article,we analyze the structural characteristics of the Mg-based SSEs with high ionic conductivity reported in the last four decades based upon data mining-we provide big-data-derived insights into the challenges and opportunities in developing next-generation Mg-ion SSEs.

摘要：The continuous emergence of drug-resistant bacteria has become a serious threat to human and animal *** new non-antibiotic therapeutic drugs with high efficiency and low resistance is a promising strategy for combating drug-resistant ***,a novel composite structure based on a hollow metal-organic framework(MOF)wrapped Au nanorod and loaded Pt nanoparticles(Au NR@H-ZIF-8@Pt)is designed for combating drug-resistant *** Au NR@H-ZIF-8@Pt composite structures serve a twofold purpose:(1)showing superior photothermal conversion efficiency under near-infrared light irradiation,thus achieving an antibacterial effect based on photothermal effect,and(2)exhibiting high-efficiency peroxidase-like activity,and effectively killing bacteria by reactive oxygen species(ROS)generated in *** combining photothermal and catalytic effects for in vitro antibacterial experiments,Au NR@H-ZIF-8@Pt exhibits efficient,rapid,broad-spectrum antibacterial activity(99.7%for Pseudomonas aeruginosa and 98.3%for Staphylococcus aureus).In addition,in vivo experiments further demonstrate the advantages of the material in promoting bacterial infection wound *** study not only facilitates the design of novel biological nanomaterials,but also provides new ideas for combating drug-resistant bacteria.

摘要：过渡金属氧化物具有丰富的功能性,但其错综复杂的内部自由度对相图绘制和结构设计提出了挑战.本文中,我们引入了描述相图物理起源的轨道能级序(ELO),并通过对La_(0.67)Sr_(0.33)MnO_(3)(LSMO)氧化物的研究证明了其在相图预测中的有效性.结合DFT计算和实验,我们构建了氧含量和应变关联的LSMO相图,结果表明LSMO结构稳定性与ELO密切相关.据此发现了一种由ELO演化而产生的四倍氧有序相.最后,我们提出了描述轨道分裂程度的轨道弹性定律,阐明了ELO演化的起源,助力功能氧化物的设计.这项研究拓宽了材料科学领域的性能调控手段,并为从轨道角度预测相图提供了思路.

摘要：环保型CuInSe_(2)量子点具有高消光系数和宽光谱吸收范围,在光电化学催化应用中展现了良好的发展前景.然而,CuInSe_(2)量子点较低的载流子分离能力和严重的界面电荷复合降低了其光电化学性能,制约了其应用.因此,我们设计并合成了具有Ⅱ型能带排列的CuInSe_(2)/CuInS_(2)核/壳结构量子点,以促进载流子分离、减少界面缺陷;进一步通过调节In/Cu前驱体的摩尔比,产生铜空位.光物理性质研究表明,导带电子-铜空位捕获的空穴之间的辐射复合成为主要的复合方式,有效延长了载流子寿命,促进了载流子分离.因此,基于富铜空位的CuInSe_(2)/CuInS_(2)核壳量子点的光阳极获得了~8.0 mA cm^(-2)的最大饱和光电流密度,该性能是当前报道的CISe基量子点光电化学电池中的最高值之一.本工作提供了一种通过表面或内在缺陷的调控来促进光电化学应用中的电荷载流子分离和传输的有效方法.

摘要：Aqueous Zn-iodine(Zn-I_(2))batteries have attracted extensive research interest as an emerging redox conversion energy storage system due to the low cost and high ***,the shuttling effects of polyiodides arising from incomplete redox conversion and inhomogeneous Zn plating on the Zn anode surface always hinder the commercial application of Zn-I_(2)*** this work,a two-birds-with-one-stone strategy is reported for long-life Zn-I_(2)*** on the strategy,the sulfonate-functionalized carbon fiber not only acts as the excellent iodine limiter to inhibit iodine species shuttling,but also as the uniform Zn plating guidance layer on the Zn anode surface to prevent the inhomogeneous deposition of Zn^(2+).Consequently,a superior cycling stability(a capacity of 124 mAh g^(-1)after 10,000 cycles at 5 A g^(-1))is *** calculations illustrate that sulfonate groups successfully induce charge redistribution on the carbon substrate,thereby strengthening the electronic interactions of the iodine species with the carbon *** charge-enriched sulfonate groups can guide the uniform deposition of Zn^(2+)through a strong Coulombic effect with Zn^(2+).This work gives a new perspective on the integrated design of cathodes and anodes for rechargeable batteries.

摘要：调控金属活性位点的电子结构来发展高活性的选择性加氢反应催化剂对于可持续有机合成非常重要.但时至今日,这仍然是非常具有挑战性的课题.在本文中,我们将具有电子结构调节特性的超细PtRu合金纳米颗粒负载在CdS纳米棒上,成功构建了PtRu/CdS复合催化剂并研究了其光催化芳香族硝基化合物氢化还原性能.我们发现当以水为质子源时,所得复合催化剂表现出高效的光催化加氢活性.超快光谱研究和密度泛函理论计算揭示了合金的形成促进了光生载流子的分离并降低了氢化还原反应中决速步的能垒,从而显著提高了加氢活性.本研究通过合金化效应调节助催化剂的电子结构,为高活性助催化剂/光催化剂体系的理性设计开辟了一条新途径.

摘要：铂(Pt)是质子交换膜燃料电池(PEMFCs)阳极氢氧化反应(HOR)中最先进的电催化剂.然而,Pt催化剂对CO(工业低成本氢燃料中的杂质)极度敏感从而中毒,这会引起器件性能的急剧衰退,导致器件运行成本高.因此,提高Pt催化剂的CO耐受性对PEMFCs的商业化推广至关重要.在此,我们设计合成了一种独特的PtNiW@WO_(x)核壳纳米线来提高Pt基催化剂对CO的耐受能力.机理研究表明,表面无定形的WO_(x)壳层可以作为分子围栏,在动力学上阻碍CO扩散到达Pt位点.在热力学上,Ni和W元素合金化产生的电子效应可以使Pt的d带中心降低,减弱CO在Pt位点上的化学吸附.此外,亲氧W元素可以加速水的解离,提供更多OH活性物种,促进CO的氧化脱附.因此,在1000ppm CO/H_(2)条件下,所设计的PtNiW@WO_(x)核壳纳米线催化剂表现出优异的HOR抗CO中毒性能,在4000 s后仍能保持超过90%的HOR电流密度,超过了原始的PtNi纳米线和目前报道的绝大多数Pt基催化剂.