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Efficient and Stable Photoassisted Lithium-Ion Battery Enabled by Photocathode with Synergistically Boosted Carriers Dynamics

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NANO-MICRO LETTERS 2025年第1期17卷 1-15页

作者： Ma, Zelin Wang, Shiyao Ma, Zhuangzhuang Li, Juan Zhao, Luomeng Li, Zhihuan Wang, Shiyuan shuang, yazhou Wang, Jiulong Wang, Fang Xia, Weiwei Jian, Jie He, Yibo Wang, Junjie Guo, Pengfei Wang, Hongqiang Northwestern Polytech Univ Ctr Nano Energy Mat State Key Lab Solidificat Proc Sch Mat Sci & Engn Xian 710072 Peoples R China NPU Shaanxi Joint Lab Graphene Xian 710072 Peoples R China Northwestern Polytech Univ Sch Mat Sci State Key Lab Solidificat Proc Xian 710072 Peoples R China Northwestern Polytech Univ Engn Dept Xian 710072 Peoples R China Northwestern Polytech Univ Ctr Adv Lubricat & Seal Mat Sch Mat Sci & Engn State Key Lab Solidificat Proc Xian 710072 Peoples R China Northwestern Polytech Univ Shenzhen Res & Dev Inst Shenzhen 518063 Peoples R China Shaanxi Normal Univ Key Lab Appl Surface & Colloid Chem Shaanxi Engn Lab Adv Energy Technol Shaanxi Key Lab Adv Energy DevicesSch Mat Sci & E Xian 710119 Peoples R China

Efficient and stable photocathodes with versatility are of significance in photoassisted lithium-ion batteries (PLIBs), while there is always a request on fast carrier transport in electrochemical active photocathodes. Present work proposes a general approach of creating bulk heterojunction to boost the carrier mobility of photocathodes by simply laser assisted embedding of plasmonic nanocrystals. When employed in PLIBs, it was found effective for synchronously enhanced photocharge separation and transport in light charging process. Additionally, experimental photon spectroscopy, finite difference time domain method simulation and theoretical analyses demonstrate that the improved carrier dynamics are driven by the plasmonic-induced hot electron injection from metal to TiO2, as well as the enhanced conductivity in TiO2 matrix due to the formation of oxygen vacancies after Schottky contact. Benefiting from these merits, several benchmark values in performance of TiO2-based photocathode applied in PLIBs are set, including the capacity of 276 mAh g(-1 ) at 0.2 A g(-1 )under illumination, photoconversion efficiency of 1.276% at 3 A g(-1 ), less capacity and Columbic efficiency loss even through 200 cycles. These results exemplify the potential of the bulk heterojunction strategy in developing highly efficient and stable photoassisted energy storage systems.

关键词： Photoassisted lithium-ion batteries Bulk heterojunction Carrier dynamics TiO2 nanofiber Plasmonic metal nanocrystals

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二脲基桥联β-环糊精手性液相色谱键合相的制备与性能评价

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色谱 2020年第4期38卷 464-475页

作者：双亚洲王惠张天赐李来生南昌大学化学学院

采用六亚甲基二异氰酸酯与6-脱氧-6-羟乙基胺基-β-环糊精反应,合成二脲基桥联β-环糊精,并将其键合到硅胶表面,制备一种新型的二脲基桥联β-环糊精固定相(UBCDP)。通过红外光谱、质谱、元素分析等进行结构表征,以黄烷酮类、氨基酸类、... 详细信息

采用六亚甲基二异氰酸酯与6-脱氧-6-羟乙基胺基-β-环糊精反应,合成二脲基桥联β-环糊精,并将其键合到硅胶表面,制备一种新型的二脲基桥联β-环糊精固定相(UBCDP)。通过红外光谱、质谱、元素分析等进行结构表征,以黄烷酮类、氨基酸类、三唑类手性药物和农药为探针,评价其手性色谱性能,探讨相关分离机理。进行色谱条件优化,并与单β-环糊精固定相(CDCSP)比较。试验了多种手性化合物,其中25个被拆分,2′-羟基黄烷酮、己唑醇、丹磺酰亮氨酸等分离度(R_s)达到1.52~4.35,且能拆分体积较大的橙皮甙。这与桥联β-环糊精的协同包结作用有关。而CDCSP仅能拆分少量的对映体,且分离度较低。UBCDP手性拆分能力更强,在手性药物和农药监测中有应用价值。

关键词：高效液相色谱法二脲基桥联β-环糊精固定相手性药物与农药拆分色谱性能评价色谱分离机理

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Engineering atomic Rb-N configurations to tune radical pathways for highly selective photocatalytic H2O2 synthesis coupled with biomass valorization

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Journal of Energy Chemistry 2025年第1期100卷 215-225页

作者： Jiaye Li shuang Pan Yihuang Chen Qiong Liu College of Chemistry and Materials Engineering Wenzhou University Guangdong Provincial Key Laboratory of Chemical Measurement and Emergency Test Technology (China) Institute of Analysis Guangdong Academy of Sciences (China National Analytical CenterGuangzhou)

Photocatalytic oxygen reduction for hydrogen peroxide （H2O2） synthesis presents a green and costeffective production ***,achieving highly selective H2O2synthesis remains challenging,necessitating precise control over free radical reaction pathways and minimizing undesirable oxidative ***,we report for the visible light-driven simultaneous co-photocatalytic reduction of O2to H2O2and oxidation of biomass using the atomic rubidium-nitride modified carbon nitride（CNRb）.The optimized CNRb catalyst demonstrates a record photoreduction rate of 8.01 mM h-1for H2O2generation and photooxidation rate of 3.75 mM h-1for furfuryl alcohol to furoic acid,achieving a remarkable solar-to-chemical conversion （SCC） efficiency of up to 2.27%.Experimental characterizations and DFT calculation disclosed that the introducing atomic Rb–N configurations allows for the high-selective generation of superoxide radicals while suppressing hydroxyl free radical *** is because the Rb–N serves as the new alternative site to perceive a stronger connection position for O2adsorption and reinforce the capability to extract protons,thereby triggering a high selective redox product *** study holds great potential in precisely regulating reactive radical processes at the atomic level,thereby paving the way for efficient synthesis of H2O2coupled with biomass valorization.

关键词： Atomic economy Radical pathway regulation Rubidium atom coordination Biomass valorization

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高效液相色谱法手性拆分和测定药片中华法林钠对映体

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南昌大学学报（理科版） 2018年第5期42卷 436-440页

作者：王惠王喜萍双亚洲李来生南昌大学化学学院江西南昌330031

采用衍生化纤维素手性柱,实现了华法林钠对映体的基线分离。优化的流动相组成为乙腈-0.1%甲酸(4060,v/v),流速为0.5mL·min-1,进样量为10μL,柱温为20℃,检测波长为308nm,拆分时间在15min内。在此基础上,建立了一种定量测定药片中华... 详细信息

采用衍生化纤维素手性柱,实现了华法林钠对映体的基线分离。优化的流动相组成为乙腈-0.1%甲酸(4060,v/v),流速为0.5mL·min-1,进样量为10μL,柱温为20℃,检测波长为308nm,拆分时间在15min内。在此基础上,建立了一种定量测定药片中华法林钠对映体含量的新方法。两对映体的浓度与响应信号之间呈良好的线性关系,线性范围均为0.5～250μg·mL-1(r=0.999 2)。采用标准添加法测得药片中华法林钠两对映体的平均回收率范围为93.5%～101.1%(n=3),两对映体检出限均小于0.1μg·mL-1。该方法对华法林钠对映体的测定具有较高的选择性、灵敏度和重现性,在手性药物质量检测中有一定的应用前景。

关键词：高效液相色谱法纤维素手性固定相华法林钠对映体含量片剂

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桥联双β-环糊精液相色谱柱测定药片中盐酸阿罗洛尔对映体

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南昌大学学报（理科版） 2020年第1期44卷 23-27页

作者：双亚洲廖玉芹张天赐李来生南昌大学化学学院江西南昌330047

采用一种自制的桥联β-环糊精手性色谱柱(UBCDP),通过流动相组成、流速、柱温等色谱条件的优化,在极性有机的模式下成功地拆分了盐酸阿罗洛尔对映体,分离度在25 min内可达到1.58。在上述基础上,建立了一种高效液相色谱法荧光法测定药片... 详细信息

采用一种自制的桥联β-环糊精手性色谱柱(UBCDP),通过流动相组成、流速、柱温等色谱条件的优化,在极性有机的模式下成功地拆分了盐酸阿罗洛尔对映体,分离度在25 min内可达到1.58。在上述基础上,建立了一种高效液相色谱法荧光法测定药片中盐酸阿罗洛尔对映体含量的新方法,在0.05~0.50 mg·L-1的浓度范围内两个对映体均具有良好的线性关系(R2≥0.9992),平均回收率范围为92.8~105.1%(n=5),检出限(LOD)低于0.025 mg·L-1。该方法操作较简便,选择性较好,灵敏度高,分析时间较短,为盐酸阿罗洛尔手性药物的质量控制和相关药代动力学研究提供了一种新方法。

关键词：高效液相色谱法桥联β-环糊精手性固定相手性药物分析盐酸阿罗洛尔对映体药片

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高效液相色谱法测定苹果和西红柿中腈菌唑对映体含量

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分析科学学报 2021年第3期37卷 273-278页

作者：张天赐钟慧双亚洲曾庆丽李良李来生南昌大学化学学院江西南昌330047 南昌大学分析测试中心江西南昌330047

本文建立一种高效液相色谱测定果蔬中腈菌唑对映体残留量的新方法。样品经QuEChERS方法提取,丙基乙二胺和石墨化炭黑吸附剂净化,用磁粒子快速回收处理后,采用自制的含苯甲酰胺键合臂β-环糊精固定相色谱柱,以乙腈-水=12∶88(V/V)作流动... 详细信息

本文建立一种高效液相色谱测定果蔬中腈菌唑对映体残留量的新方法。样品经QuEChERS方法提取,丙基乙二胺和石墨化炭黑吸附剂净化,用磁粒子快速回收处理后,采用自制的含苯甲酰胺键合臂β-环糊精固定相色谱柱,以乙腈-水=12∶88(V/V)作流动相,实现了腈菌唑对映体的完全分离,在221 nm波长下测定苹果和西红柿中腈菌唑对映体含量。结果表明:腈菌唑对映体的线性范围均为0.5~50μg/mL,苹果中两个对映体的平均回收率分别为93.62%和93.34%;西红柿中两个对映体的平均回收率分别为95.43%和94.80%,测定结果的相对标准偏差(RSDs,n=5)为1.27%~2.01%。腈菌唑对映体的最低检出浓度(S/N=3)为0.04μg/mL,实现了β-环糊精类固定相完全拆分腈菌唑。β-环糊精固定相比常用的纤维素类固定相更耐溶剂,适用反相色谱且成本较低,可用于果蔬样品中农药对映体分析检测。

关键词：高效液相色谱法 β-环糊精类键合相腈菌唑对映体含量测定果蔬

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Cosmological implications of different baryon acoustic oscillation data

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Science China(Physics,Mechanics & Astronomy) 2017年第4期60卷 10-22页

作者： shuang Wang yazhou Hu Miao Li School of Physics and Astronomy Sun Yat-Sen UniversityZhuhai 519082China Kavli Institute of Theoretical Physics China Chinese Academy of SciensesBeijing 100190China

In this work, we explore the cosmological implications of different baryon acoustic oscillation （BAO） data, including the BAO data extracted by using the spherically averaged one-dimensional galaxy clustering （GC） statistics （hereafter BAO 1） and the BAO data obtained by using the anisotropic two-dimensional GC statistics （hereafter BAO2）. To make a comparison, we also take into account the case without BAO data （hereafter NO BAO）. Firstly, making use of these BAO data, as well as the SNLS3 type la supernovae sample and the Planck distance priors data, we give the cosmological constraints of the ACDM, the wCDM, and the Chevallier-Polarski-Linder （CPL） model. Then, we discuss the impacts of different BAO data on cosmological consquences, including its effects on parameter space, equation of state （EoS）, figure of merit （FoM）, deceleration-acceleration transition redshift, Hubble parameter H（z）, deceleration parameter q（z）, statefinder hierarchy S3^（1）（z）, S4^（1）（z） and cosmic age t（z）. We find that：（1） NO BAO data always give a smallest fractional matter density Ωm0, a largest fractional curvature density Ωk0 and a largest Hubble constant h; in contrast, BAO1 data always give a largest Ωm0, a smallest Ωk0 and a smallest h. （2） For the wCDM and the CPL model, NO BAO data always give a largest EoS w; in contrast, BA02 data always give a smallest w. （3） Compared with the case of BAO1, BAO2 data always give a slightly larger FoM, and thus can give a cosmological constraint with a slightly better accuracy. （4） The impacts of different BAO data on the cosmic evolution and the comic age are very small, and cannot be distinguished by using various dark energy diagnoses and the cosmic age data.

关键词： cosmology dark energy observations cosmological parameters

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Synergistically enhanced ORR and HER performance on Co-N-C coupled in-situ generated PtCo intermetallic

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Journal of Energy Chemistry 2025年第1期100卷 721-729页

作者： Guanyu Luo Min Song Lulu An Xiao Huang Qian Zhang Chenhao Zhang Tao Shen shuang Wang Deli Wang Key Laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science and Technology) Ministry of Education School of Chemistry and Chemical Engineering Huazhong University of Science and Technology

Integrating multi-scale sites in a composite catalyst is vital to realize efficient ***,a synergistic composite catalyst consisting of Co atomic sites and in-situ generated PtCo intermetallic compounds （IMCs）(o-PtCo@CoNC) is proposed through Co pre-anchoring and subsequent impregnation-reduction *** loading of Co atoms provides a chance for in-situ generating PtCo ordered intermetallic *** remaining Co single atoms and PtCo IMCs construct synergistic electrocatalytic *** from the ordered structure,synergistic effect of Pt Co IMCs and Co single atoms,o-PtCo@CoNC exhibits excellent electrocatalytic performance for oxygen reduction reaction （ORR） and hydrogen evolution reaction （HER） with mass activity of 1.21 A mgPt-1（at 0.9 V） and5.70 A mgPt-1（at an overpotential of 100 mV）,***,o-PtCo@CoNC delivers negligible loss of half-wave potential and overpotential during long-term stability test in acid solutions,with 13 mV decay after 50,000 potential cycles for ORR and a 2.7 mV decay after 20,000 potential cycles for *** integration strategy of single-atomic sites coupled IMCs paves the way for enhancing the activity and durability of Pt-based electrocatalysts.

关键词： Electrolytic reduction

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Definition of the general initial water penetration fracture criterion for concrete and its engineering application

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Science China(Technological Sciences) 2011年第6期54卷 1575-1580页

作者： JIANG yazhou REN QingWen XU Wei LIU shuang College of Water Conservancy and Hydropower Engineering Hohai University Nanjing 210098 China College of Mechanics and Material Hohai University Nanjing 210098 China

A general initial water penetration(seepage) fracture criterion for concrete is proposed to predict whether or not harmful water penetration(hydraulic fracturing),other than microcracking,will occur in concrete structures in a severe high water pressure *** final regression,of the different macroscopic failure types in concrete to microscopic ModeⅠ c racking,allows the use of only one universal criterion to indicate the ***,a general initial water penetration fracture criterion is approximately defined as a strain magnitude of 1000×10-6,based on the concept of tensile strain derived from experimental results in the relevant ***,the locations of harmful water penetration fracture(hydraulic fracture) in the high arch dam mass of the Jinping first class hydropower project are analyzed using the nonlinear finite element method(FEM) according to the proposed *** proposed criterion also holds promise for other concrete structures in high water pressure environments.

关键词： concrete initial water penetration fracture criterion hydraulic fracture tensile strain Jinping high arch dam

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WELL-POSEDNESS AND PEAKON SOLUTIONS FOR A HIGHER ORDER CAMASSA-HOLM TYPE EQUATION

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数学杂志 2025年第1期45卷 57-71页

作者： CHEN shuang School of Mathematics and Statistics Ningbo UniversityNingbo 315211China

In this paper,we delve into a generalized higher order Camassa-Holm type equation,(or,an ghmCH equation for short).We establish local well-posedness for this equation under the condition that the initial data uo belongs to the Sobolev space H'(R)for some s>*** addition,we obtain the weak formulation of this equation and prove the existence of both single peakon solution and a multi-peakon dynamic system.

关键词： Generalized higher order Camassa-Holm type equation Local well-posedness Peakon

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