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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

On Strong Embeddability and Finite Decomposition Complexity

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Acta Mathematica Sinica,English Series 2017年第3期33卷 403-418页

作者： Jun xia xian jin wang College of Mathematics and Statistics Chongqing University Chongqing 401331 P. R. China

The strong embeddability is a notion of metric geometry, which is an intermediate property lying between coarse embeddability and property A. In this paper, we study the permanence properties of strong embeddability for metric spaces. We show that strong embeddability is coarsely invariant and it is closed under taking subspaces, direct products, direct limits and finite unions. Furthermore, we show that a metric space is strongly embeddable if and only if it has weak finite decomposition complexity with respect to strong embeddability.

关键词： Metric geometry strong embeddability coarse invariance permanence properties finitedecomposition complexity

Seed priming with chitosan improves maize germination and seedling growth in relation to physiological changes under low temperature stress

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2009年第6期10卷 427-433页

作者： Ya-jing GUAN jin hu xian-ju wang Chen-xia SHAO Seed Science Center College of Agriculture and Biotechnology Zhejiang University Hangzhou 310029 China Yuan Longping High-Tech Agriculture Co. Ltd. Changsha 410001 China

Low temperature stress during germination and early seedling growth is an important constraint of global production of maize. The effects of seed priming with 0.25%, 0.50%, and 0.75% （w/v） chitosan solutions at 15 ℃ on the growth and physiological changes were investigated using two maize （Zea rnays L.） inbred lines, huangC （chilling-tolerant） and Mo17 （chilling-sensitive）. While seed priming with chitosan had no significant effect on germination percentage under low temperature stress, it enhanced germination index, reduced the mean germination time （MGT）, and increased shoot height, root length, and shoot and root dry weights in both maize lines. The decline of malondialdehyde （MDA） content and relative permeability of the plasma membrane and the increase of the concentrations of soluble sugars and proline, peroxidase （POD） activity, and catalase （CAT） activity were detected both in the chilling-sensitive and chilling-tolerant maize seedlings after priming with the three concentrations of chitosan. huangC was less sensitive to responding to different concentrations of chitosan. Priming with 0.50% chitosan for about 60-64 h seemed to have the best effects. Thus, it suggests that seed priming with chitosan may improve the speed of germination of maize seed and benefit for seedling growth under low temperature stress.

关键词： Seed priming Chitosan Low temperature stress Germination Physiological changes Maize

Synthesis of quinoxaline derivatives catalyzed by PEG-400

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Chinese Chemical Letters 2010年第4期21卷 395-398页

作者： Zhang, xia Zhong wang, jin xian Sun, Yong Jun Zhan, hong Wen NW Normal Univ Dept Chem Inst Chem Lanzhou 730070 Peoples R China

Polyethylene glycol(PEG) was found to be an effective catalyst for the condensation of 1,2-diamines with 1,2-dicarbonyl compounds to afford the corresponding quinoxaline derivatives in excellent yields under mild reac... 详细信息

关键词： PEG-400 Quinoxaline derivatives 1 2-Diamines 2-Dicarbonyl compounds

Thermodynamic simulation of the effect of slag chemistry on the corrosion behavior of alumina–chromia refractory

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International Journal of Minerals,Metallurgy and Materials 2016年第12期23卷 1458-1465页

作者： Shi-xian Zhao Bin-li Cai hong-gang Sun Gang wang hong-xia li xiao-yan Song State key Laboratory of Advanced Refractories Sinosteel Luoyang Institute of Refractories Research Co. Ltd. School of Materials Science and Engineering Beijing University of Technology

The corrosion behavior of alumina-chromia refractory against two kinds of industrial slags （coal slag and iron smelting slag） at 1550℃ was investigated via thermodynamic simulations. In the proposed simulation model, the initial slag first attacks the matrix and surface aggregates and subsequently attacks the inner aggregates. The simulation results indicate that the slag chemistry strongly affects the phase formation and corrosion behavior of the refractory brick. Greater amounts of alumina were dissolved and spinel solid phases formed when the brick interacted with iron smelting slag. These phenomena, as well as the calculated lower viscosity, may lead to much deeper penetration than that exhibited by coal slag and to more severe corrosion compared to that induced by coal slag. The thermodynamic calculations well match the experimental observations, demonstrating the efficiency of the proposed simulation model for evaluating the corrosion behavior of alumina-chromia refractory.

关键词： thermodynamic analysis simulation corrosion spinel alumina chromia refractories

Symmetries and Mei Conserved Quantities for Nonholonomic Systems with Servoconstraints

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Communications in Theoretical Physics 2009年第1期51卷 1-5页

作者： xia li-li wang xian-Jun ZHAO xian-lin Department of Physics Henan Institute of Education Zhengzhou 450014 China

This paper concentrates on studying the symmetries and a new type of conserved quantities called Mei conserved quantities for Nonholonomic Systems with Servoconstraints. The criterions of the Mei symmetry, the Noether symmetry, and the lie symmetry are given. The conditions and the forms of the Mei conserved quantities deduced from these three symmetries are obtained. An example is given to illustrate the appfication of the results.

关键词： nonholonomic systems servoconstraints symmetry conserved quantity

Mei Symmetries and lie Symmetries for Nonholonomic Controllable Mechanical Systems with Relativistic Rotational Variable Mass

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Communications in Theoretical Physics 2009年第6期51卷 1073-1077页

作者： xia li-li li Yuan-Cheng wang xian-Jun Department of Physics Henan Institute of Education Zhengzhou 450014 China College of Physics Science and Technology China University of Petroleum Dongying 257061 China

The Mei symmetries and the lie symmetries for nonholonomic controllable mechanical systems with relativistic rotational variable mass are studied. The differential equations of motion of the systems are established. The definition and criterion of the Mei symmetries and the lie symmetries of the system are studied respectively. The necessary and sufficient condition under which the Mei symmetry is lie symmetry is given. The condition under which the Mei symmetries can be led to a new kind of conserved quantity and the form of the conserved quantity are obtained. An example is given to illustrate the application of the results.

关键词： relativity rotation nonholonomic controllable mechanical system variable mass conserved quantity

Development of peanut varieties with high oil content by in vitro mutagenesis and screening

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Journal of Integrative Agriculture 2020年第12期19卷 2974-2982页

作者： wang jing-shan SHI Lei liU Yue ZHAO Ming-xia wang xia QIAO li-xian SUI Jiong-ming li Guan Zhu hong YU Shan-lin College of Agronomy Qingdao Agricultural University/Shandong Provincial Key Laboratory of Dryland Farming TechnologyQingdao 266109P.R.China Haidu College Qingdao Agricultural UniversityLaiyang 265200P.R.China College of Horticulture Qingdao Agricultural UniversityQingdao 266109P.R.China

Peanut (Arachis hypogaea L.) is an important oil crop globally and high oil content is one of the major targets in peanut breeding programs. Previous studies indicated that the osmotic pressure (OP) of the leaves of peanut plants subjected to drought stress was negatively correlated with kernel oil content. Based on this knowledge, we established a practical and reliable method for creating new peanut varieties with high oil content using in vitro mutagenesis and directional OP-based selection. Using embryonic leaflets of peanut variety huayu 20 as explants, pingyangmycin (PYM) as the mutagen, and hydroxyproline (HYP) as the OP regulator, we developed 15 HYP-tolerant regenerated plants. For each regenerated plant, we selected offspring with oil content>55% (relative to 49.5% for huayu 20). We developed and released three new peanut varieties with high yield and high oil content from the offspring of the HYP-tolerant regenerated plants. The three new varieties were named as Yuhua 4, Yuhua 9 and Yuhua 14 and their oil contents were 57.7, 61.1 and 59.3%, respectively. The results indicate that in vitro mutagenesis with PYM followed by directed screening with HYP is a useful approach for breeding peanut varieties with high oil contents.

关键词： Arachis hypogaea in vitro mutagenesis HYP-directed selection high oil variety

Cloning of TaCYP707A1 Gene that Encodes ABA 8′-Hydroxylase in Common Wheat (Triticum aestivum L.)

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Agricultural Sciences in China 2009年第8期8卷 902-909页

作者： ZHANG Chun-li HE Xin-yao HE Zhong-hu wang lin-hai xia xian-chun Institute of Crop Sciences Chinese Academy of Agricultural Sciences （CAAS）/National Wheat Improvement Center/The National Key Facility for Crop Gene Resources and Genetic Improvement Beijing 100081 P.R.China Crop Research Institute Heilongjiang Academy of Agricultural Sciences Harbin 150086 P.R. China International Maize and Wheat Improvement Center （CIMMYT） China Office c/o CAAS Beijing 100081 P.R. China

The plant hormone abscisic acid （ABA） regulates many important physiological and developmental processes in plants. The objective of this study was to clone the ABA 8′-hydroxylase gene in common wheat. In the present study, we used the eDNA sequence of barley HvCYP707A1 gene （GenBank accession no. AB239299） as a probe for BLAST search against the common wheat （Triticum aestivum L.） EST database in GenBank. All wheat ESTs sharing high similarity with the reference gene were subjected to contig assembly. Primers were designed based on the constructed contigs to clone the wheat CYP707A1 gene, designated as TaCYP707A1. The genomic DNA sequence of TaCYPTO7A1 gene comprised five exons and four introns, with a size of 2225 bp. The corresponding cDNA sequence of TaCYP707A1 was 1737 bp, containing an open reading frame （ORF） of 1431 bp, a 42-bp 5′-untranslated region （UTR） and a 264-bp 3′UTR, with 94.9% of identical sequences to HvCYP707A1 gene （AB239299）. The neighbor joining tree indicated that the deduced amino acid sequences of TaCYP707A1 gene was highly similar to those of barley and rice. The TaCYP707A1 gene was located on chromosome 6BL using a set of Chinese Spring nullisomic-tetrasomic lines and ditelosomic line 6BS. These results will be of high importance in understanding of molecular mechanism of ABA catabolism.

关键词： Triticum aestivum L. homeologous cloning CYP707A1 gene ABA 8′-hydroxylase