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Design of hierarchical and mesoporous FeF_(3)/rGO hybrids as cathodes for superior lithium-ion batteries

Chinese Chemical Letters 2022年第8期33卷 3931-3935页

作者： Jiale Lian Yang Wu Yichuan Guo Zhenyun Zhao qinghua zhang Yang Hou Lingxiang Chen Bin Lu Xinhua Pan Zhizhen Ye Jianguo Lu State Key Laboratory of Silicon Materials Key Laboratory for Biomedical Engineering of Ministry of EducationSchool of Materials Science and EngineeringZhejiang UniversityHangzhou 310027China College of Chemical and Biological Engineering Zhejiang UniversityHangzhou 310027China Key Laboratory for Biomedical Engineering of Ministry of Education College of Biomedical Engineering and Instrument ScienceZhejiang UniversityHangzhou 310027China Wenzhou Key Laboratory of Novel Optoelectronic and Nano Materials Institute of WenzhouZhejiang UniversityWenzhou 325006China

Iron fluoride(FeF_(3)) is considered as a promising cathode material for Li-ion batteries(LIBs)due to its high theoretical capacity(712 mAh/g)with a 3 ***,we have designed a strategy of hierarchical and mesoporous FeF_(3)/rG O hybrids for LIBs,where the hollow Fe F_(3) nanospheres are the main contributor to the specific capacity and the 2 D r GO nanosheets are the matrix elevating the electronic conductivity and buffering the volume *** unique FeF_(3)/rGO hybrid can be rationally synthesized by a nonaqueous in-situ precipitation method,offering the merits of large specific surface area with rich active sites,fast transport channels for lithium ions,effective alleviation of volume expansion during cycles,and accelerating the electrochemical reaction *** Fe F_(3)/r GO hybrid electrode possesses a high initial discharge capacity of 553.9 m Ah/g at a rate of 0.5 C with 378 m Ah/g after 100 cycles,acceptable rate capability with 168 m Ah/g at 2 C,and feasible high-temperature operation(320 m Ah/g at 70℃).The superior electrochemical behaviors presented here demonstrates that the FeF_(3)/rGO hybrid is a potential electrode for LIBs,which may open up a new vision to design high-efficiency energy-storage devices such as LIBs based on transition metal fluorides.

关键词： Li-ion batteries Transition metal fluorides Reduced graphite oxide Hybrid electrodes In-situ synthesis High-temperature operation

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Multiomics-based dissection of citrus flavonoid metabolism using a Citrus reticulata × Poncirus trifoliata population

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Horticulture Research 2021年第1期8卷 669-680页

作者： Jiaolin Mou Zhehui zhang Haiji Qiu Yang Lu Xiang Zhu Ziquan Fan qinghua zhang Junli Ye Alisdair R.Fernie Yunjiang Cheng Xiuxin Deng Weiwei Wen Key Laboratory of Horticultural Plant Biology College of Horticulture and Forestry SciencesHuazhong Agricultural UniversityWuhan 430070China Thermo Fisher Scientific Shanghai 201206China National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural UniversityWuhan 430070China Max-Planck-Institute of Molecular Plant Physiology Am Müehlenberg 114476 Potsdam-GolmGermany

Deciphering the genetic basis of plant secondary metabolism will provide useful insights for genetic improvement and enhance our fundamental understanding of plant biological *** citrus plants are among the most important fruit crops worldwide,the genetic basis of secondary metabolism in these plants is largely ***,we use a high-density linkage map to dissect large-scale flavonoid metabolic traits measured in different tissues(young leaf,old leaf,mature pericarp,and mature pulp)of an F_(1) pseudo-testcross citrus *** detected 80 flavonoids in this population and identified 138 quantitative trait loci(QTLs)for 57 flavonoids in these four *** on transcriptional profiling and functional annotation,twenty-one candidate genes were identified,and one gene encoding flavanone 3-hydroxylase(F3H)was functionally verified to result in naturally occurring variation in dihydrokaempferol content through genetic variations in its promoter and coding *** abundant data resources collected for diverse citrus germplasms here lay the foundation for complete characterization of the citrus flavonoid biosynthetic pathway and will thereby promote efficient utilization of metabolites in citrus quality improvement.

关键词： citrus crops metabolism

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Giant Valley Coherence at Room Temperature in 3R WS_(2) with Broken Inversion Symmetry

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Research 2019年第1期2019卷 466-473页

作者： Luojun Du Jian Tang Jing Liang Mengzhou Liao Zhiyan Jia qinghua zhang Yanchong Zhao Rong Yang Dongxia Shi Lin Gu Jianyong Xiang Kaihui Liu Zhipei Sun Guangyu zhang Beijing National Laboratory for Condensed Matter Physics and Institute of Physics Chinese Academy of SciencesBeijing 100190China Department of Electronics and Nanoengineering Aalto UniversityTietotie 3FI-02150Finland State Key Laboratory for Mesoscopic Physics Collaborative InnovationCenter of Quantum MatterSchool of PhysicsPeking UniversityBeijingChina State Key Laboratory for Metastable Materials Science and Technology Yanshan UniversityQinhuangdao 066004China School of Physical Sciences University of Chinese Academy of ScienceBeijing 100190China Beijing Key Laboratory for Nanomaterials and Nanodevices Beijing 100190China QTF Centre of Excellence Department of Applied PhysicsAalto UniversityFI-00076 AaltoFinland Songshan-Lake Materials Laboratory Dongguan523808 Guangdong ProvinceChina

Breaking the space-time symmetries in materials can markedly influence their electronic and optical *** 3R-stacked transition metal dichalcogenides,the explicitly broken inversion symmetry enables valley-contrasting Berry curvature and quantization of electronic angular momentum,providing an unprecedented platform for ***,we study the valley coherence of 3R WS_(2) large single-crystal with thicknesses ranging from monolayer to octalayer at room *** measurements demonstrate that both A and B excitons possess robust and thickness-independent valley *** valley coherence of direct A(B)excitons can reach 0.742(0.653)with excitation conditions on resonance with *** giant and thickness-independent valley coherence of large single-crystal 3R WS_(2) at room temperature would provide a firm foundation for quantum manipulation of the valley degree of freedom and practical application of valleytronics.

关键词： properties Inversion curvature

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Distant eQTLs and Non-coding Sequences Play Critical Roles in Regulating Gene Expression and Quantitative Trait Variation in Maize

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Molecular Plant 2017年第3期10卷 414-426页

作者： Haijun Liu Xin Luo Luyao Niu Yingjie Xiao Lu Chen Jie Liu Xiaqing Wang Minliang Jin Wenqiang Li qinghua zhang Jianbing Yan National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural University Wuhan 430070 China These authors contributed equally to this article

A detailed understanding of genetic architecture of mRNA expression by millions of genetic variants is important for studying quantitative trait variation. In this study, we identified 1.25M SNPs with a minor allele frequency greater than 0.05 by combining reduced genome sequencing （GBS）, high- density array technologies （600K）, and previous deep RNA-sequencing data from 368 diverse inbred lines of maize. The balanced allelic frequencies and distributions in a relatively large and diverse natural panel helped to identify expression quantitative trait loci （eQTLs） associated with more than 18 000 genes （63.4% of tested genes）. We found that distant eQTLs were more frequent （~75% of all eQTLs） across the whole genome. Thirteen novel associated loci affecting maize kernel oil concentration were identified using the new dataset, among which one intergenic locus affected the kernel oil variation by controlling expression of three other known oil-related genes. Altogether, this study provides resources for expanding our understanding of cellular regulatory mechanisms of transcriptome variation and the landscape of functional variants within the maize genome, thereby enhancing the understanding of quantitative variations.

关键词： eQTL RNA-seq GBS GWAS non-coding regulation Zea mays

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A survey on rough set theory and its applications

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CAAI Transactions on Intelligence Technology 2016年第4期1卷 323-333页

作者： qinghua zhang Qin Xie Guoyin Wang Chongqing Key Laboratory of Computational Intelligence Chongqing University of Posts and Telecommunications Chongqing 400065 China School of Science Chongqing University of Posts and Telecommunications Chongqing 400065 China

After probability theory, fuzzy set theory and evidence theory, rough set theory is a new mathematical tool for dealing with vague, imprecise, inconsistent and uncertain knowledge. In recent years, the research and applications on rough set theory have attracted more and more researchers＇ attention. And it is one of the hot issues in the artificial intelligence field. In this paper, the basic concepts, operations and characteristics on the rough set theory are introduced firstly, and then the extensions of rough set model, the situation of their applications, some application software and the key problems in applied research for the rough set theory are presented.

关键词： Rough sets Fuzzy sets Soft computing Artificial intelligence Approximation space Extended models

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Anchoring Single Nickel Atoms on Carbon-vacant Carbon Nitride Nanosheets for Efficient Photocatalytic Hydrogen Evolution

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Chemical Research in Chinese Universities 2022年第5期38卷 1243-1250页

作者： LIN Zhi zhang Zhengqi WANG Yiqing PENG Zhiming WANG Xinxin WANG Ruizhe HUANG Yu-Cheng MENG Fanqi LI Mingtao DONG Chung-Li zhang qinghua GU Lin SHEN Shaohua International Research Center for Renewable Energy State Key Laboratory of Multiphase Flow in Power EngineeringXi'an Jiaotong UniversityXi'an 710049P.R.China Department of Physics Tamkang UniversityNew Taipei City 25137TaiwanP.R.China Institute of Physics Chinese Academy of SciencesBeijing 100190P.R.China

Polymeric carbon nitride(PCN)has emerged as a promising candidate for photocatalytic hydrogen evolution,but its dependence on scarce and high-cost noble metal co-catalysts severely limits its extensive *** will be of great promise to develop non-noble metal single-atom co-catalysts with low-cost and high atom utilization to improve the photocatalytic performance over ***,single Ni atoms are successfully anchored onto carbon-vacant PCN nanosheets(CCN-SANi)via a two-step ammonia thermal treatment and photo-deposition *** calculations and experimental results demonstrate that the optical absorption property and the charge transfer ability of CCN-SANi have been significantly improved with the introduction of single Ni atoms to form Ni-N3 *** comparison to carbon-vacant PCN(CCN)loaded with Ni clusters,the obtained CCN-SANi exhibits 11.4 times increased photocatalytic performance,with the highest hydrogen evolution rate reaching 511μmol/(g·h),which is even 1.7 times higher than that of CCN loaded with Pt *** research proposes an inspiring and reliable strategy to design novel single-atom semiconducting polymers with electronic structures manipulated for efficient photocatalysis.

关键词： Photocatalytic hydgogen evolution Single metal atom Polymeric carbon nitride

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Integrated System of Solar Cells with Hierarchical NiCo2O4 Battery-Supercapacitor Hybrid Devices for Self-Driving Light-Emitting Diodes

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Nano-Micro Letters 2019年第3期11卷 92-103页

作者： Yuliang Yuan Yangdan Lu BeiEr Jia Haichao Tang Lingxiang Chen YuJia Zeng Yang Hou qinghua zhang Qinggang He Lei Jiao Jianxing Leng Zhizhen Ye Jianguo Lu State Key Laboratory of Silicon Materials School of Materials Science and EngineeringZhejiangUniversityHangzhou310027People’s Republic of China Key Laboratory for Biomedical Engineering of Ministry of Education College of Biomedical Engineeringand Instrument ScienceZhejiang UniversityHangzhou310027People’s Republic of China Shenzhen Key Laboratory of Laser Engineering College of Optoelectronic EngineeringShenzhenUniversityShenzhen518060People’s Republic of China4College of Chemical and Biological EngineeringZhejiang UniversityHangzhou310027People’s Republic of China Ningbo Research Institute Zhejiang UniversityNingbo315100People’s Republic of China Ocean College Zhejiang UniversityZhoushan316021People’s Republic of China

An integrated system has been provided with a-Si/H solar cells as energy conversion device,NiCo2O4 battery-supercapacitor hybrid(BSH)as energy storage device,and light emitting diodes(LEDs)as energy utilization *** designing three-dimensional hierarchical NiCo2O4 arrays as faradic electrode,with capacitive electrode of active carbon(AC),BSHs were assembled with energy density of 16.6 Wh kg-1,power density of 7285 W kg-1,long-term stability with 100% retention after 15,000 cycles,and rather low *** NiCo2O4//AC BSH was charged to 1.6 V in 1 s by solar cells and acted as reliable sources for powering *** integrated system is rational for operation,having an overall efficiency of 8.1% with storage efficiency of 74.24%.The integrated system demonstrates a stable solar power conversion,outstanding energy storage behavior,and reliable light *** study offers a precious strategy to design a self-driven integrated system for highly efficient energy utilization.

关键词： Integrated system NiCo2O4 Battery-supercapacitor hybrid devices Self-driving LED

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Bract suppression regulated by the miR156/529-SPLs-NL1-PLA1 module is required for the transition from vegetative to reproductive branching in rice

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Molecular Plant 2021年第7期14卷 1168-1184页

作者： Lei Wang Luchang Ming Keyan Liao Chunjiao Xia Shengyuan Sun Yu Chang Hongkai Wang Debao Fu Conghao Xu Zhengji Wang Xu Li Weibo Xie Yidan Ouyang Qinglu zhang Xianghua Li qinghua zhang Jinghua Xiao Qifa zhang National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research(Wuhan) Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhan 430070China

Reproductive transition of grasses is characterized by switching the pattern of lateral branches,featuring the suppression of outgrowth of the subtending leaves(bracts)and rapid formation of higher-order branches in the inflorescence(panicle).However,the molecular mechanisms underlying such changes remain largely ***,we show that bract suppression is required for the reproductive branching in *** identified a pathway involving the intrinsic time ruler microRNAI56/529,their targets SQUAMOSA PROMOTER BINDING PROTEIN LIKE(SPL)genes,NECK LEAF1(NL1),and PLASTOCHRON1(PLA1),which regulates the bract outgrowth and thus affects the pattern switch between vegetative and reproductive *** of the bract results in global reprogramming of transcriptome and chromatin accessibility following the reproductive transition,while these processes are largely dysregu-lated in the mutants of these *** discoveries contribute to our understanding of the dynamic plant architecture and provide novel insights for improving crop yields.

关键词： grass plant architecture developmental timing lateral branch bract suppression

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Superconductivity above 28K in single unit cell FeSe ?lms interfaced with GaO_(2-δ) layer on NdGaO_3(110)

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Science Bulletin 2019年第8期64卷 490-494页

作者： Haohao Yang Guanyu Zhou Yuying Zhu Guan-Ming Gong qinghua zhang Menghan Liao Zheng Li Cui Ding Fanqi Meng Mohsin Rafique Heng Wang Lin Gu Ding zhang Lili Wang Qi-Kun Xue State Key Laboratory of Low-Dimensional Quantum Physics Department of Physics Tsinghua University Laboratory for Advanced Materials & Electron Microscopy Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Collaborative Innovation Center of Quantum Matter

The discovery of high temperature superconductivity in single unit cell(UC)FeSe on TiO2-δterminated perovskite SrTiO3(001)substrates[1]has attracted intensive attention on searching for new superconducting systems wi... 详细信息

关键词： Ga 110 lms interfaced with GaO Superconductivity above 28K in single unit cell FeSe layer on NdGaO3 UC

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Pressure-Induced Topochemical Polymerization toward Advanced Energetic Materials

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CCS Chemistry 2023年第8期5卷 1815-1826页

作者： Guangyu Qi Siwei Song Zhiying Deng Dajian Huang Fang Chen Bingmin Yan Huiyang Gou qinghua zhang Yi Wang Institute of Chemical Materials China Academy of Engineering Physics(CAEP)Mianyang 621999 Center for High Pressure Science and Technology Advanced Research(HPSTAR) Beijing 100094

Pressure produces closely packed,high-density materials,thereby providing a promising strategy to obtain high-energy-density ***,new phases or structures of energetic materials at high pressure are often not quenchable under ambient *** this work,high-pressure topochemical methodology is first introduced for the preparation of stable energetic materials under ambient conditions.A pressure-induced polymerizable energetic material named PIP-1 is designed and *** experimental measurements demonstrate that the polymerization of PIP-1 is caused by the breakage of C≡C bonds and the generation of C=C *** accord with the experimental results,density functional theory calculations further revealed that the monomer PIP-1 is polymerized to generate 1D PIP-1 tape,and the density of polymerized PIP-1 is increased by 4.9%upon *** successful realization of high-energy-density structure using high pressure showcases a new design strategy for advanced polymerizable energetic materials.

关键词： high pressure energetic material topochemistry pressure-induced polymerization

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