摘要：Electrochemical CO_(2) reduction reaction (CO_(2) RR) offers a practical solution to current global greenhouse effect by converting excessive CO_(2) into value-added chemicals or fuels. Noble metal-based nanomaterials have been considered as efficient catalysts for the CO_(2) RR owing to their high catalytic activity, long-term stability and superior selectivity to targeted products. On the other hand, they are usually loaded on different support materials in order to minimize their usage and maximize the utilization because of high price and limited reserve. The strong metal-support interaction (MSI) between the metal and substrate plays an important role in affecting the CO_(2) RR performance. In this review, we mainly focus on different types of support materials (e.g., oxides, carbons, ligands, alloys and metal carbides) interacting with noble metal as electrocatalysts for CO_(2) RR. Moreover, the positive effects about MSI for boosting the CO_(2) RR performance via regulating the adsorption strength, electronic structure, coordination environment and binding energy are presented. Lastly, emerging challenges and future opportunities on noble metal electrocatalysts with strong MSI are discussed.

摘要：The circuit testable realization and its fault detection for logic functions with ESOP （EXOR-Sum-Of-Products） expressions are studied. First of all, for the testable realization by using XOR gate cascade, a test set with 2n ＋ m ＋ 1 vectors for the detections of AND bridging faults and a test set with 2n ＋ m vectors for the detections of OR bridging faults are presented. Secondly, for the testable realization by using ）（OR gate tree, a test set with 2n ＋ m vectors for the detections of AND bridging faults and a test set with 3n ＋ m ＋ 1 vectors for the detections of OR bridging faults are presented. Finally, a single fault test set with n ＋ 5 vectors for the XOR gate tree realization is presented. Where n is the number of input variables and m is the number of product terms in a logic function.

摘要：The thermal conduction of suspended few-layer hexagonal boron nitride （h-BN） sheets was experimentally investigated using a noncontact micro-Raman spectroscopy method. The first-order temperature coefficients for monolayer （1L）, bilayer （2L） and nine-layer （9L） h-BN sheets were measured to be -（3.41 ± 0.12）× 10-2, -（3.15 ± 0.14） × 10-2 and -（3.78 ±0.16）× 10-2 cm-1.K-1, respectively. The room-temperature thermal conductivity of few-layer h-BN sheets was found to be in the range from 227 to 280 W.m-1-K-1, which is comparable to that of bulk h-BN, indicating their potential use as important components to solve heat dissipation problems in thermal management configurations.

摘要：Artificial photonic synapses have set off a new upsurge for mimicking a series of neural activities in recent *** particular,the investigation of learning and memory behaviors with pressure or emotion and corresponding mechanisms is currently the focus of more ***,a hippocampus-inspired device based on MoS_(2) for illumination time encoding is fabricated,in which the encryption technology is employed for data *** addition,the pressureinduced memory behaviors with full memory function(memory trace)over time such as encoding,storage and retrieval are demonstrated,resulting from the decreasing positive photocurrent of the MoS;*** proposed mechanism of the memory effect when exposed to the light is elucidated in ***,the effect of stress hormone on memory behavior is displayed via different illumination time periods and light *** results indicate the potential application of MoS_(2) devices in artificial neural network.

摘要：To solve the issue of the contradiction between photovoltaic power generation and plant photosynthesis for sunlight demand, we propose a design method of multi-passband polymer multilayer optical structure. Using polycarbonate(PC) and polymethyl methacrylate(PMMA), two polymer materials with different refractive indices, the passband position and passband bandwidth are calculated and adjusted by the transmission matrix method and TFCalc software. A 450 nm,660 nm, and 730 nm three-passband filter was realized by superimposing stacks of different band positions. The feasibility of the photovoltaic agriculture was confirmed by the power generation efficiency and the actual plant growth.

摘要：It is highly desired to improve the photoelectric property of nanosized BiOBr by promoting the photogenerated charge transfer and separation. Herein, SnO2 and Ag comodified BiOBr nanocomposites(Ag-SO-BOB) have been prepared through a simple one-pot hydrothermal *** photovoltage response of BiOBr nanoplates has 4.1-time enhancement after being modified with SnO2 nanoparticles. Transient-state surface photovoltage(TS-SPV) and the atmosphere-controlled steady-state surface photovoltage spectroscopy(AC-SPS) confirmed that this exceptional enhancement of the photovoltage response can be ascribed to the coupled SnO2 acting as platform for accepting the photoelectrons from BiOBr so as to prolong the lifetime and enhance charge separation. Remarkably, the surface photovoltage response can be further enhanced by synchronously introducing Ag nanoparticles, which is up to 15.4-times enhancement compared with bulk BiOBr nanoplates. The enhancement can be attributed to the improved O2 adsorption by introducing Ag to further enhance charge separation. Finally, the synergistic effect of SnO2 and Ag co-modification enhances the surface photovoltage response due to the enhanced charge separation and promoted O2 adsorption, which is also confirmed through photoelectrochemistry and photocatalytic experiment.

摘要：拓宽材料对光子的吸收是利用太阳光能的关键.然而,要平衡电极材料对光的最大化吸收与存储是当前光电极材料的设计难点.本文报道了一种具有丰富硫空位的Cu_(2)S/CuCl异质阵列材料,该材料中CuCl与硫空位的存在增加了其对光子的捕获与转化.同时,Cu_(2)S/CuCl异质结增加了材料的导电性能,促进了电子的传输效率.当作为赝电容的电极材料时,该Cu_(2)S/CuCl双功能材料的光照下容量提升比率高达35%.同时,由该材料制成的非对称电容器循环测试6000次之后的面积比容量可依旧维持在670 mF cm^(-2).该Cu_(2)S/CuCl材料具有优异的光电化学性能,在下一代光辅助充电储能器件的应用领域展示出巨大前景.

摘要：三维(3D)狄拉克半金属因其独特的拓扑能带结构及优异的光电性能在中/远红外波段的宽光谱光电探测领域具有巨大的应用潜力.然而,由于较大的暗电流,构建具有高信噪比(SNR)的3D狄拉克半金属宽光谱光电探测器仍面临很大挑战.本工作基于分子束外延生长的(Cd_(1-x)Zn_(x))_(3)As_(2)薄膜发展了一种超低器件噪声的3 D狄拉克半金属(Cd_(1-x)Zn_(x))_(3)As_(2)/Sb_(2)Se_(3)背靠背异质结光电探测器线阵.得益于有效的双异质结设计策略,该探测器可以实现从可见光(450 nm)到中红外(4.5μm)波段的室温高性能宽光谱探测器目标,其峰值SNR和D*分别可达104和5.2×10^(12)Jones,并具有相对较快的响应速度(~87.5μs).此外,不同探测器线列单元之间呈现出的稳定性、均匀性特征表明了其在未来应用于光迹实时跟踪等光电子器件中的可行性.该研究为基于3D狄拉克半金属材料制备具有超高SNR的高速宽光谱光电探测器提供了参考策略,展示了半金属在高速非制冷红外焦平面成像阵列探测器中的广阔前景.

摘要：具有电化学变色功能的柔性电池在智能电子领域显示出巨大的应用潜力.然而,具有可视化电量预警功能的镍锌电池目前尚未见报道.在此,我们设计了一种用于柔性镍锌电池的电致变色镍钴氢氧化物/镍/氧化铟锡(NiCo BH/Ni/ITO)柔性电极.通过优化Ni层厚度,电极在电流密度为0.1 mA cm^(-2)时,着色效率为59.89 cm^(2)C^(-1),容量为7.15μA h cm^(-2).相应组装的电致变色镍锌电池功率密度为160μW cm^(-2)时,能量密度为12.69μW h cm^(-2),优于部分文献报道的透明柔性超级电容器和电致变色电池.值得注意的是,组装的镍锌电池在充放电过程中显示出可逆的颜色变化,提供了一种可视化监测电池剩余电量的新功能.

摘要：水系钾基电池(APBs)因具有高安全性和环境友好的性质而被广泛研究.然而,由于电极材料和工作机制的限制,APBs在倍率性能和能量密度方面需要进一步提高,以满足发展需求.针对上述问题,我们首次成功设计并组装了以Z n金属作为阳极,K1.9 2C u0.6 2M n0.3 8-[Fe(CN)6]0.968·□0.0 3 2·H_(2)O0.35作为阴极,2 mol L-1Zn(SO_(3)CF3)2+12 mol L-1KSO_(3)CF3作为电解液的水系钾基电池.这种混合离子体系的设计优点是:(i)选择金属锌作为阳极,提高了APBs的工作电位;(ii)双阳离子储存机制缩短了离子传输路径;(ⅲ)来自双阳离子电解质的K+通过静电屏蔽作用抑制了锌枝晶的生长.因此,组装后的全电池具有1.75 V的高工作电位,并具有优异的倍率性能(在10,000 mA g-1的电流密度下,保持原有容量的83.3%).此外,通过理论相场模拟和综合表征充分揭示了原位静电屏蔽效应,显著抑制了锌阳极的枝晶生长,提高了全电池稳定性.混合离子电池的结构设计为高性能APBs的发展提供了思路.