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Nano-Micro Letters 2025年第2期17卷 376-386页

作者： Wei-min.qin Zhongliang Li Wen‑Xia Su Jia‑min Hu Hanqin Zou Zhixuan Wu Zhiqin Ruan Yue‑Peng Cai Kang Li Qifeng Zheng School of Chemistry South China Normal UniversityGuangzhou 510006People’s Republic of China Key Laboratory of Functional Metal‑Organic Compounds of Hunan Province College of Chemistry and Material ScienceHengyang Normal UniversityHengyang 421008People’s Republic of China Guangzhou Key Laboratory of Energy Conversion and Energy Storage Materials Guangzhou 510006People’s Republic of China

Porous organic cages(POCs)with permanent porosity and excellent host–guest property hold great potentials in regulating ion transport behavior,yet their feasibility as solid-state electrolytes has never been testified in a practical ***,we design and fabricate a quasi-solid-state electrolyte(QSSE)based on a POC to enable the stable operation of Li-metal batteries(LMBs).Benefiting from the ordered channels and cavity-induced anion-trapping effect of POC,the resulting POC-based QSSE exhibits a high Li+transference number of 0.67 and a high ionic conductivity of 1.25×10^(−4) S cm^(−1) with a low activation energy of 0.17 *** allow for homogeneous Li deposition and highly reversible Li plating/stripping for over 2000 *** a proof of concept,the LMB assembled with POC-based QSSE demonstrates extremely stable cycling performance with 85%capacity retention after 1000 ***,our work demonstrates the practical applicability of POC as SSEs for LMBs and could be extended to other energy-storage systems,such as Na and K batteries.

关键词： Porous organic cage Cavity-induced anion-trapping Quasi-solid-state electrolyte Homogeneous Li+flux Lithium metal battery

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Nano high-entropy oxide cathode with enhanced stability for direct borohydride fuel cells

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Journal of Energy Chemistry 2025年第1期100卷 309-316页

作者： lei Zhang Lingfeng Kuang Lianke Zhang Wen Chu Haiying qin Jing Zhang Junjing He Hualiang Ni Hongzhong Chi New Energy Materials Research Center College of Materials and Environmental Engineering Hangzhou Dianzi University School of Materials Science and Engineering Zhejiang University Key Laboratory of MEMS of ministry of Education School of Integrated Circuits Southeast University

High-entropy materials have become high-activity electrocatalysis owing to their high-entropy effect and multiple active ***,we synthesize a series of carbon-supported nano high-entropy oxides（HEOs/C）,specifically （PtFeCoNiCu）O/C,using a carbothermal shock （CTS） method for application as a cathode catalyst in direct borohydride fuel cells （DBFCs）.The microstructure of the prepared catalysts was characterized by X-ray photoelectron spectroscopy,X-ray absorption fine structure,and transmission electron *** prepared （PtFeCoNiCu）O/C,with particle sizes ranging from 2 to 4 nm,demonstrates 3.94 transferred electrons towards the oxygen reduction reaction in an alkaline environment,resulting in a minimal H2O2yield of 2.6%.Additionally,it exhibits a Tafel slope of 61 mV dec-1,surpassing that of commercial Pt/C (82 mV dec-1).Furthermore,after 40,000 cycles of cyclic voltammetry（CV） testing,the half-wave potential of （PtFeCoNiCu）O/C shows a positive shift of 3 mV,with no notable decline in the limiting current *** （PtFeCoNiCu）O/C is used as a cathode catalyst in DBFCs,the DBFC achieves a maximum power density of 441 mW cm-2at 60°C and sustains a cell voltage of approximately 0.73 V after 52 h at 30°*** findings confirm that HEO/C is a promising cathode catalyst for DBFCs.

关键词： Direct borohydride fuel cells (DBFC)

Enhanced rate capability and cycle stability of Ti2C MXene for sodium storage through an aniline molecules welding strategy

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Tungsten 2025年第1期7卷 161-171页

作者： Hao Chen Ya-qin Wang Dong-Ting Zhang Bei Zhao min-Peng Li Chen-Yang Li Tian-Peng Xu Mao-Cheng Liu State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals Lanzhou University of Technology School of Materials Science and Engineering Lanzhou University of Technology School of Computer and Communication Technology Lanzhou University of Technology

MXenes obtained significant attention in the field of energy storage devices due to their characteristic layered structure,modifiable surface functional groups,large electrochemically active surface,and regulable interlayer ***,the self-restacking and sluggish ions diffusion kinetics performance of MXenes during the alkali metal ions insertion/extraction process severely impedes their cycle stability and rate *** paper proposes an aniline molecule welding strategy for welding p-phenylenediamine（PPDA） into the interlayers of Ti2C through a dehydration condensation *** welded PPDA molecules can contribute pillar effect to the layered structure of *** pillar effect effectively maintains the structural stability during the sodium ions insertion/extraction process and effectively expands the interlayer spacing of Ti2C from 1.16 to 1.38 nm,thereby enhancing ions diffusion kinetics performance and improving the long-term cycle *** Ti2C-PPDA demonstrates outstanding Na+storage capability,exhibiting a specific capacity of 100.2 mAh·g-1at a current density of 0.1 A·g-1over 960 cycles and delivering a remarkable rate capability 81.2 mAh·g-1at a current density of 5 A·*** study demonstrates that expanding interlayer spacing is a promising strategy to enhance the Na+storage capacity and improve long-term cycling stability,which provides significant guidance for the design of two-dimensional Na+storage materials with high-rate capability and cycle stability.

关键词： Diffusion kinetics Expanding interlayer spacing Rate capability Sodium ions storage Ti2C

Bifunctional bridging capping layer enables 24.5% efficiency of perovskite solar cells with polymer-based hole transport materials

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Science China Chemistry 2025年第1期68卷 350-359页

作者： Can Zhu Yiyang Wang lei Meng Beibei Qiu Jing Li Shucheng qin Ke Hu Xin Jiang Wenbin Lai minchao Liu Zhe Liu Chenxing Lu Jinyuan Zhang Yongfang Li Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences School of Chemical Science University of Chinese Academy of Sciences Key Laboratory of Solid State Optoelectronic Devices of Zhejiang Province College of Physics and Electronic Information Engineering Zhejiang Normal University Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and ChemistryChinese Academy of Sciences Laboratory of Advanced Optoelectronic Materials College of Chemistry Chemical Engineering and Materials ScienceSoochow University

Developing a bridge capping layer between perovskite and hole transport layer materials（HTMs） in the n-i-p perovskite solar cells（pero-SCs） is an effective approach to modify the morphology of HTMs and passivate the perovskite ***, we select the quinoxaline-based bifunctional passivation agent, quinoxalin-6-yl-methylamine hydrochloride（Qx MACl）,as the bridging layer, and a D-A copolymer PBQ12 containing the same quinoxaline unit as an HTM for the n-i-p pero-SCs. Due to the π-π stacking among the common quinoxaline units in the bridge layer and HTM, Qx MACl induces the π-π stacking of the PBQ12 film and improves the film morphology of HTMs with better conductivity. Additionally, Qx MACl can effectively passivate the perovskite surface, and PBQ12 possesses appropriate energy levels and high hole mobility. The pero-SCs based on FAPbI3with PBQ12/Qx MACl treatment showed a higher power conversion efficiency（PCE） of 24.05% and outstanding stability, maintaining 95.4% and 92.1% of its initial PCE after 750 h of storage and after over 800 h of thermal annealing at 85 °C, respectively. To further enhance the PCE of the PBQ12/Qx MACl-based devices, we developed a non-metal ion dopant for the PBQ12 HTM. Through trace doping of PBQ12 HTM by the non-metal ion dopant, the PCE of the PBQ12/Qx MACl-based devices reached 25.24%（the calibrated PCE of 24.55% by the National Institute of Metrology, China）.

关键词： D-A copolymer, hole transport materials, bifunctional bridge capping layer, passivation perovskite solar cells

Zircon U-Pb age, Lu-Hf Isotopic Characteristics and Origin of the Banshanping Granitoid Rocks in East qinling Orogenic Belt

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Acta Geologica Sinica(English Edition) 2014年第3期88卷 766-779页

作者： LI mingze WU Cailai lei min.qin haipeng LIU Chunhua Institute of Geology Chinese Academy of Geological sciences

The Banshanping granitoid rocks distribute in the east of the North qinling orogenic *** is a diorite-quartz diorite-granodiorite-granite series,spreading in a NW-SE direction,and intrudes into the Erlangping *** SiO2 content ranges from 57.04% to 76.56%,Na2O from 2.05% to 4.65%,K2O from 0.84% to 3.40%.Major element characteristics indicate that Banshanping granitoid rocks have properties of I type *** ranges from 36.51 ppm to 473.25 ppm,and LREE/ HREE ratios lie between 3.95 and *** Eu anomalies are not obvious in most samples,though there are obvious Nb,P and Ti positive *** zircon LA-ICP-MS ages of Banshangping granitoid rocks are 496.0±8.1 Ma-486.9±9.3 *** isotope shows that 176Hf/177Hf ratios range from 0.282721 to 0.282876,εHf（t） values from 8.5 to 14,all positive,and corresponding modal ages （TDM2） range from 559 Ma to 908 *** on Hf isotope characteristics and existing SmNd and Rb-Sr isotope data,we consider that the Banshanping granitoid rocks originate from mantlederived material,*** igneous rocks that formed in Neoproterozoic,and there may be a certain amount of crust-derived material during the formation of Banshanping granitoid rocks.

关键词： Banshanping granitoid rocks Zircon U-Pb chronology Lu-Hf isotope characteristics,material origin

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Insights from untargeted metabolomics: revealing potential marker compounds into the maturation of fermented chili

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Food Science and Human Wellness 2025年

作者： Shiyu Liu mingyuan Yang Jianhua Zhao Meijuan lei Jinlin Han min Xu Ping Liu Jie Tang Hongbin Lin School of Food and Bio-engineering， Xihua University China Agricultural University-Sichuan Advanced Agricultural & Industrial Institute Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing Food Microbiology Key Laboratory of Sichuan Province

Chili fermentation is one of the most important processes in the production of Pixian Douban (PXDB)， which determines the flavor and product quality of PXDB. However， the maturity of fermented chili mainly depends on empirical judgment， which can not satisfy the need for standardized production of PXDB. Therefore， this study aimed to investigate volatile and non-volatile substances during the maturation process and to find markers related to the maturity of fermented chili. GC×GC-MS combined with multivariate statistical analysis revealed that 2-methoxy-3-isobutyl pyrazine， linalool， 3-(methylthio)propionaldehyde， myrcene， and decanal (ROAV ≥ 1， VIP > 1， P mination of maturity the fermented chili and lay the foundation for intelligent production of PXDB.

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Impact of Phase-locked Loop Dynamics on Transient Over-voltage in VSC due to Switching Delays

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Dianwang Jishu/Power System Technology 2025年第1期49卷 284-294页

作者： Zhao, Boyuan Lu, Chen Chen, lei min, Yong Li, Luyang Department of Electrical Engineering Tsinghua University Haidian District Beijing 100084 China North China Branch of State Grid Corporation of China Xicheng District Beijing 100053 China

With the implementation of the "emission peak, carbon neutrality" strategy, the proportion of renewable energy is increasing, and the grid strength of the power system is getting weaker. This leads to high transient over-voltage problems caused by AC short circuits. The paper analyzes the impact of phase-locked loop (PLL) dynamics on the transient over-voltage in a voltage source converter (VSC) due to switching delays after low voltage ride-through (LVRT). The results show that the point of common coupling (PCC) voltage phase generally jumps backward at the moment of fault clearing, and the reactive current during the switching delay no longer equals the reference value due to PLL. When VSC only injects reactive current during LVRT, the phenomenon will improve the transient over-voltage. However, if the active current is injected simultaneously, the transient over-voltage level may deteriorate under some parameters of PLL. In addition, this paper also analyzes the principle of PLL parameter adjustment to ensure that the PLL dynamics improve the transient over-voltage. Electromagnetic transient simulation by MATLAB verifies the results. © 2025 Power System Technology Press. All rights reserved.

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An interface shear damage model of chromium coating/steel substrate under thermal erosion load

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Defence Technology（防务技术） 2021年第2期17卷 405-415页

作者： Xiao-long Li Yong Zang Yong Lian min-yu Ma lei Mu qin qin School of Mechanical Engineering University of Science and Technology BeijingBeijing100083China Institute for Advanced Materials and Technology University of Science and Technology BeijingBeijing100083China Beijing Key Laboratory for Corrosion Erosion and Surface TechnologyBeijing100083China

The Cr-plated coating inside a gun barrel can effectively improve the barrel’s erosion resistance and thus increase the service ***,due to the cyclic thermal load caused by high-temperature gunpowder,micro-element damage tends to occur within the Cr coating/steel substrate interface,leading to a gradual deterioration in macro-mechanical properties for the material in the related *** order to mimic this cyclic thermal load and,thereby,study the thermal erosion behavior of the Cr coating on the barrel’s inner wall,a laser emitter is utilized in the current *** the help of in-situ tensile test and finite element simulation results,a shear stress distribution law of the Cr coating/steel substrate and a change law of the interface ultimate shear strength are *** have shown that the Cr coating/steel substrate interface’s ultimate shear strength has a significant weakening effect due to increasing *** this study,the interfacial ultimate shear strength decreases from 2.57 GPa(no erosion)to 1.02 GPa(laser power is 160 W).The data from this experiment is employed to establish a Cr coating/steel substrate interface shear damage *** this model is used to predict the flaking process of Cr coating by finite element *** simulation results show that the increase of coating crack spacing and coating thickness will increase the service life of gun barrel.

关键词： Cr coating/steel substrate Thermal erosion Finite element simulation Ultimate shear strength Interface shear damage model

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毛竹PheTCP19b基因可变剪接体对芽发育的影响

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农业生物技术学报 2025年第1期33卷 43-54页

作者：郝琴申孜闫小玲周敏舒郭小勤浙江农林大学竹子研究院/省部共建亚热带森林培育国家重点实验室

可变剪接(alternative splicing, AS)是一种转录后的修饰过程，在生物体各种生理过程中发挥重要作用。TCP是一种植物特有的转录因子，参与植物多种生长发育调控过程。为深入探究毛竹(Phyllostachys edulis) TCP19b基因可变剪接体的表达... 详细信息

可变剪接(alternative splicing, AS)是一种转录后的修饰过程，在生物体各种生理过程中发挥重要作用。TCP是一种植物特有的转录因子，参与植物多种生长发育调控过程。为深入探究毛竹(Phyllostachys edulis) TCP19b基因可变剪接体的表达特性及生物学功能，本研究采用RT-PCR技术克隆了毛竹TCP19b基因全长CDS，采用qRT-PCR技术和GUS组织染色分析了可变剪接体的表达量及表达部位，通过亚细胞定位及遗传转化分析了可变剪接体编码蛋白的定位及生物学功能。结果显示，毛竹PheTCP19b基因发生了可变剪接，产生了2种可变剪接体PheTCP19bα和PheTCP19bβ，分别编码346和382个氨基酸，2种可变剪接体都包含保守的bHLH结构域。PheTCP19b与水稻(Oryza sativa) OsTCP19亲缘关系最近。2个可变剪接体的组织特异性表达模式存在一定差异，PheTCP19bα的组织特异性强，而PheTCP19bβ表现出组成型表达特性，油菜素内酯(brassinolide, BR)可诱导2个可变剪接体的表达。2个可变剪接体蛋白均富集在细胞核。PheTCP19bα和PheTCP19bβ均可以将拟南芥(Arabidopsis thaliana) brc1突变体多分枝表型回补到野生型表型。本研究为进一步探讨PheTCP19b基因不同剪接体在芽发育过程中的分子机制提供了基础资料。

关键词：毛竹 TCP转录因子可变剪接(AS) 芽发育油菜素内酯(BR)

Current use of immunosuppressive agents in inflammatory bowel disease patients in East China

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World Journal of Gastroenterology 2009年第24期15卷 3055-3059页

作者： Li-Juan Huang qin Zhu min lei Qian Cao Department of Gastroenterology Sir Run Run Shaw Hospital College of Medicine Zhejiang University Hangzhou 310016 Zhejiang Province China Department of Gastroenterology Zhejiang Hospital Hangzhou 310013 Zhejiang Province China

AIM:To investigate immunosuppressive agents used to treat inflammatory bowel disease(IBD)in East China. METHODS:A retrospective review was conducted, involving 227 patients with IBD admitted to Sir Run Run Shaw Hospital,College of Medicine,Zhejiang University from June 2000 to December *** regarding demographic,clinical characteristics and immunosuppressants usage were analyzed. RESULTS:A total of 227 eligible patients were evaluated in this study,including 104 patients with Crohn’s disease and 123 with ulcerative *** the patients,61 had indications for immunosuppressive agents ***,only 21 (34.4%)received immunosuppressive *** the 21 patients,6(37.5%)received a subtherapeutic dose of azathioprine with no attempt to increase the *** the 20 patients that received immunosuppressive agent treatment longer than 6 mo,15 patients went into remission,four patients were not affected and one *** these 20 patients,four patients suffered from myelotoxicity and one suffered from ***:Immunosuppressive agents are used less frequently to treat IBD patients from East China compared with Western *** immunosuppressive agent use is recommended to optimize dispensation of drugs for IBD in China.

关键词： Inflammatory bowel disease Immunosuppressive agents Azathioprine