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| 1 | The RNA Editing Factor WSP1 Is Essentia for Chloroplast Development in Rice显示文摘尽管在 Arabidopsis thaliana 的质体编辑因素(MORF ) 的多重 organellar RNA 是位于下面 MORF 怎么在另外的种类影响植物开发的广泛地学习的、分子的细节,特别地在米饭,仍然保持大部分未知。这里,我们描述 wsp1 的描述,有白条纹的叶子和圆锥花序的米饭异种。尤其是, wsp1 在出发舞台展出了将近白的不成熟的圆锥花序。传播电子显微镜学分析和叶绿素内容测量揭示了叶绿体在 wsp1 的发展缺点和减少的叶绿素累积。在 Os04g51280 发现一个点变化的 WSP1 的位置的克隆,份额其通常认为的产品高与 MORF 蛋白质定序类似。互补实验证明 WSP1 为 wsp1 的使成杂色的显型负责。WSP1 对叶绿体局部性,在 wsp1 的点变化影响编辑多重 organellar RNA 地点。由于在编辑的质体 RNA 的缺点,叶绿体核糖体生物的续生说并且 ndhA 拼接也在 wsp1 被损害,它可以在出发阶段在叶子和圆锥花序影响正常叶绿体开发。一起,我们的结果在叶绿体开发表明米饭 WSP1 蛋白质的重要性并且在米饭关于 MORF 家庭成员拓宽我们的知识。 | Zhiguo Zhang Xuean Cui Yanwei Wang JinxiaWu Xiaofeng Gu Tiegang Lu | 2017 | Molecular Plant2017,10,1: | 15 |
| 2 | SERK Receptor-like Kinases Control Division Patterns of Vascular Precursors and Ground Tissue Stem Cells during Embryo Development in Arabidopsis显示文摘During embryo development, the vascular precursors and ground tissue stem cells divide to renew them-selves and produce the vascular tissue, endodermal cells, and cortical cells. However, the molecular mech-anisms regulating division of these stem cells have remained largely elusive. In this study, we show that loss of function of SOMATIC EMBRYOGENESIS RECEPTOR-UKE KINASE (SERK) genes results in aberrant em-bryo development. Fewer cortical, endodermal, and vascular cells are generated in the embryos of serk1 serk2bak1 triple mutants. WUSCHEL-RELATED HOMBOBOX5 (WOXS) is ectopically expressed in vascular cells of serkl serk2 bak1 embryos. The first transverse division of vascular precursors in mid-globular em-bryos and second asymmetric division of ground tissue stem cells in early-heart embryos are abnormally altered to a longitudinal division. The embryo defects can be partially rescued by constitutively activated mitogen-activated protein kinase (MAPK) kinase kinase YODA (YDA) and MAPK kinase MKK5. Taken together, our results reveal that SERK-mediated signals regulate division patterns of vascular precursors and ground tissue stem cells, likely via the YDA-MKK4/5 cascade, during embryo development. | Huiqiang Li Zeping Cai Xiaojuan Wang Meizhen Li Yanwei Cui Nan Cui Fei Yang Mingsong Zhu Junxiang Zhao Wenbin Du Kai He Jing Yi Frans E.Tax Suiwen Hou Jia Li Xiaoping Gou | 2019 | Molecular Plant2019,12,7: | 7 |
| 3 | miR-124 suppresses multiple steps of breast cancer metastasis by targeting a cohort of pro-metastatic genes in vitro显示文摘Metastasis is a multistep process involving modification of morphology to suit migration, reduction of tumor cell adhesion to the extracellular matrix, increase of cell mobility, tumor cell resistance to anoikis, and other steps. MicroRNAs are well-suited to regulate tumor metastasis due to their capacity to repress numerous target genes in a coordinated manner, thereby enabling their intervention at multiple steps of the invasion-metastasis cascade. In this study, we identified a microRNA exemplifying these attributes, miR-124, whose expression was reduced in aggressive MDA-MB-231 and SK-3rd breast cancer cells. Down-regulation of miR-124 expression in highly aggressive breast cancer cells contributed in part to DNA hypermethylation around the promoters of the three genes encoding miR-124. Ectopic expression of miR-124 in MDA-MB-231 cells suppressed metastasis-related traits including formation of spindle-like morphology, migratory capacity, adhesion to fibronectin, and anoikis. These findings indicate that miR-124 suppresses multiple steps of metastasis by diverse mechanisms in breast cancer cells and suggest a potential application of miR-124 in breast cancer treatment. | Xiao-Bin Lv Yu Jiao Yanwei Qing Haiyan Hu Xiuying Cui Tianxin Lin Erwei Song Fengyan Yu | 2011 | Chinese Journal of Cancer2011,30,12: | 6 |
| 4 | TCP7 functions redundantly with several Class Ⅰ TCPs and regulates endoreplication in Arabidopsis显示文摘TCP(TEOSINTE BRANCHED1/CYCLOIDEA/PROLIFERATING CELL FACTOR) proteins, a family of plantspecific transcription factors, play important roles in many developmental processes. However, genetic and functional redundancy among class I TCP limits the analysis of their biological roles. Here, we identified a dominantnegative mutant of Arabidopsis thaliana TCP7 named leaf curling-upward(lcu), which exhibits smaller leaf cells and shorter hypocotyls than the wild type, due to defective endoreplication. A septuple loss-of-function mutant of TCP7, TCP8, TCP14, TCP15, TCP21, TCP22, and TCP23 displayed similar developmental defects to those of lcu.Genome-wide RNA-sequencing showed that lcu and the septuple mutant share many misexpressed genes.Intriguingly, TCP7 directly targets the CYCLIN D1;1 (CYCD1;1) locus and activates its transcription. We determined that the C-terminus of TCP7 accounts for its transcriptional activation activity. Furthermore, the mutant protein LCU exhibited reduced transcriptional activation activity due to the introduction of an EAR-like repressive domain at its C-terminus. Together, these observations indicate that TCP7 plays important roles during leaf and hypocotyl development, redundantly, with at least six class I TCPs, and regulates the expression of CYCD1;1 to affect endoreplication in Arabidopsis. | Guofang Zhang Hongtao Zhao Chunguang Zhang Xiaoyun Li Yuanyuan Lyu Dongmei Qi Yanwei Cui Lin Hu Zhenjie Wang Zheng Liang Sujuan Cui | 2019 | Journal of Integrative Plant Biology2019,61,11: | 5 |
| 5 | Structural evolution and superconductivity tuned by valence electron concentration in the Nb-Mo-Re-Ru-Rh high-entropy alloys显示文摘The crystal structure and physical properties of Nb_(25)Mo_(5+x)Re_(35)Ru_(25-x)Rh_(10)(0≤x≤10)and Nb_(5)Mo_(35-y)Re_(15+y)Ru_(35)Rh_(10)(0≤y≤15)high-entropy alloys(HEAs)have been studied by X-ray diffraction,electrical resistivity,magnetic susceptibility,and specific heat measurements.The results show that the former HEAs with valence electron concentration(VEC)values of 6.7-6.9 crystallize in a noncentrosymmetric cubicα-Mn structure,while the latter ones with VEC values of 7.1-7.25 adopt a centrosymmetric hexagonal close-packed(hcp)structure.Despite different structures,both series of HEAs are found to be bulk superconductors with a full energy gap,and the superconducting transition temperature Tc tends to decrease with the increase of VEC.Nevertheless,the Tc values of the hcp-type HEAs are higher than those of theα-Mn-type ones,likely due to a stronger electron phonon coupling.Furthermore,we show that VEC and electronegativity difference are two key parameters to control the stability ofα-Mn and hcp-type HEAs.These results not only are helpful for the design of such HEAs,but also represent the first realization of structurally different HEA superconductors without changing the constituent elements. | Bin Liu Jifeng Wu Yanwei Cui Qjnqing Zhu Guorui Xiao Siqi Wu Guang-han Cao Zhi Ren | 2021 | Journal of Materials Science & Technology2021,,26: | 5 |
| 6 | ALM1, encoding a Fe-superoxide dismutase, is critical for rice chloroplast biogenesis and drought stress response显示文摘Chloroplasts are the center of plant life activities including photosynthesis,growth and development,and abiotic stress response.Chloroplast development and biogenesis in rice have been studied in detail,but how does abiotic stress affect chloroplasts is less studied.We obtained an albino mutant,alm1,whose chlorophyll content was greatly decreased.Transmission electron microscopy showed that chloroplast development in alm1 was blocked,especially in thylakoid-like structures,which could not form normally.The ALM1 gene encodes a chloroplast-localized superoxide dismutase.Full-length ALM1 successfully restored the non-albino phenotype,and in knockout lines,the albino phenotype reappeared.The ALM1gene is expressed mainly in young leaves.alm1 plants died as a consequence of excessive reactive oxygen accumulation after the third-leaf stage.A series of biochemical assays verified that ALM1 interacted with the OsTrxz protein,which is one of the components of plastid-encoded RNA polymerase (PEP) complexes.A western blot experiment indicated that ALM1 played an important role in stabilizing OsTrxz in rice.An overexpression test of ALM1 revealed that ALM1 can increase drought resistance by removing excess reactive oxygen in rice seedlings.This study suggests that ALM1 not only participates in rice chloroplast biogenesis,but also increases rice stress resistance by scavenging excess reactive oxygen. | Yanwei Wang Chen Deng Pengfei Ai Xue’an Cui Zhiguo Zhang | 2021 | The Crop Journal2021,9,5: | 4 |
| 7 | RGF1-RGI1,a Peptide-Receptor Complex,Regulates Arabidopsis Root Meristem Development via a MAPK Signaling Cascade显示文摘Root growth is maintained by the continuous division of cells in the apical meristem.ROOT MERISTEM GROWTH FACTOR 1(RGF1)is a critical peptide hormone regulating root stem cell niche maintenance.Previous studies discovered that five closely related leucine-rich repeat receptor-like protein kinases(LRRRLKs),named RGF1 INSENSITIVES(RGIs)or RGF1 RECEPTORS(RGFRs),are able to perceive the RGF1 signal and redundantly control root stem cell niche maintenance.RGF1 regulates root meristem activity mainly via two downstream transcription factors,PLETHORA 1(PLT1)and PLT2.Regulatory proteins connecting cell surface RGF1-RGI1 and nuclear PLTs,however,were not identified.Here,we report that the mitogen-activated protein(MAP)kinase kinase 4(MKK4)and MAP kinase 3(MPK3)were coimmunoprecipitated with RGI1-FLAG after Arabidopsis seedlings were treated with RGF1.Genetic and biochemical assays confirmed that MKK4 and MKK5,and their downstream targets MPK3 and MPK6,are essential RG卜dependent regulators of root meristem development.In addition,we found that the MKK4/MKK5-MPK3/MPK6 module functions downstream of YDA,a MAPKKK.Our results demonstrate that RGF1-RGI1 regulate the expression of PLT1/PLT2 via a YDA-MKK4/MKK5-MPK3/MPK6 signaling cascade. | Xiaoting Lu Hongyong Shi Yang Ou Yanwei Cui Jinke Chang Liang Peng Xiaoping Gou Kai He Jia Li | 2020 | Molecular Plant2020,13,11: | 3 |
| 8 | Morphological,Molecular and Pathogenicity of Alternaria gaisen Associated with Leaf Brown-Spot on‘Gonggan’Mandarin in China显示文摘[Objective]This paper was to identify the pathogen of leaf brown-spot on‘gonggan’mandarin(Citrus reticulate var.gonggan)in Zhaoqing,Guangdong Province.[Method]The pathogen was determined based on sequence analysis of ITS,endoPG,tef1,gapdh,Alt a1,rpb2 and opa10-2 genes;the morphological characteristics were recorded on PDA and PCA;and its pathogenicity on excised and intact host leaves of citrus‘gonggan’was tested.[Result]A detailed description of Alternaria gaisen was obtained based on morphological,molecular and pathogenic characterization,which was the causal agent of brown-spot disease on leaves of‘gonggan’mandarin orchard trees in Zhaoqing,Guangdong,China.[Conclusion]This study provides a scientific basis for the effective control of leaf brown-spot on‘gonggan’mandarin. | Cui Mengjiao Sein Lai Lai Aung Wei Xin Yu Zhihe Mo Yanwei Yu Wenchang Deng Jianxin Li Qili | 2020 | Plant Diseases and Pests2020,11,5: | 2 |
| 9 | Conserved and differentiated functions of CIK receptor kinases in modulating stem cell signaling in Arabidopsis显示文摘The shoot apical meristem(SAM)and root apical meristem(RAM)act as pools of stem cells that give rise to aboveground and underground tissues and organs in higher plants,respectively.The CLAVATA3(CLV3)-WUSCHEL(WUS)negative-feedback loop acts as a core pathway controlling SAM homeostasis,while CLV3/EMBRYO SURROUNDING REGION(ESR)40(CLE40)and WUSCHEL-RELATED HOMEOBOX5(WOX5),homologs of CLV3 and WUS,direct columella stem cell fate.Moreover,CLV3 INSENSITIVE KINASES(CIKs)have been shown to be essential for maintaining SAM homeostasis,whereas whether they regulate the distal root meristem remains to be elucidated.Here,we report that CIKs are indispensable for transducing the CLE40 signal to maintain homeostasis of the distal root meristem.We found that the cik mutant roots displayed disrupted quiescent center and delayed columella stem cell(CSC)differentiation.Biochemical assays demonstrated that CIKs interact with ARABIDOPSIS CRINKLY4(ACR4)in a ligand-independent manner and can be phosphorylated by ACR4 in vitro.In addition,the phosphorylation of CIKs can be rapidly induced by CLE40,which partially depends on ACR4.Although CIKs act as conserved and redundant regulators in the SAM and RAM,our results demonstrated that they exhibit differentiated functions in these meristems. | Yafen Zhu Chong Hu Yanwei Cui Li Zeng Sunjingnan Li Mingsong Zhu Fanhui Meng Shuting Huang Li Long Jing Yi Jia Li Xiaoping Gou | 2021 | Molecular Plant2021,14,7: | 2 |
| 10 | Effective inhibition of human cytomegalovirus gene expression by DNA-based external guide sequences显示文摘调查是否 12 核苷酸基于 DNA 的 miniEGSs 罐头沉默人的 cytomegalovirus (HCMV ) 的表示 UL49 基因高效地,稳定地表示 UL49 基因的一根 HeLa 房间线被构造,通常认为的 miniEGSs (UL49-miniEGSs ) 是在稳定的房间线的 assayed。量的 RTPCR 和西方的污点结果在是有 UL49-miniEGSs 的 transfected 的 HeLa 房间在 UL49 表示水平显示出 67% 的减小。它与分别地是 1 和 7% 的嘲笑和控制 miniEGSs (TK-miniEGSs ) 的显著地不同。为了进一步证实基因沉默,与人的 RNase P 由 UL49-miniEGSs 指导了, UL49-miniEGSs 的异种被构造并且一修改了 5 种族被执行。数据证明基因表示由 UL49-miniEGSs 指导了的 UL49 的抑制是 P 依赖的 RNase,由 RNase P 的 UL49 mRNA 的劈开是地点特定。作为结果,基于 DNA 的 miniEGSs 的长度能沉默基因表示高效地仅仅是 12 nt。是显著地不到到目前为止知道的基因 inactivation 的任何另外的基于 oligonucleotide 的方法。MiniEGSs 可以为病毒的基因的抑制代表新奇指向基因的代理人,另外的人的疾病联系基因表示。 | Zhifeng Zeng Hongjian Li Yueqing Li Yanwei Cui Qi Zhou Yi Zou Guang Yang Tianhong Zhou | 2009 | Acta Biochimica et Biophysica Sinica2009,41,5: | 1 |
| 11 | Superconductivity and strong spin-orbit coupling in a new noncentrosymmetric compound ThIrP显示文摘A new noncentrosymmetric phosphide ThIrP has been synthesized and characterized. X-ray difraction analysis shows that this compound crystallizes in a LaPtSi-type tetragonal lattice(space group I41md, Z = 4), whose lattice parameters are a = b =4.0676(1) ?, c = 14.3354(2) ?, and V = 237.191(8) ?3. Moreover, ThIrP is discovered to be an intermediately coupled,type-Ⅱ superconductor with possibly multiple gaps below Tc= 5.07 K. The upper critical magnetic field, Sommerfield coefficient, and Ginzburg-Laudau parameter are determined based on physical property measurements, which are Bc2= 0.83 T, γ =7.5 mJ mol-1 K-2, and κGL= 7.5, respectively. The electronic band structure calculations point out nearly equal contributions of Ir and Th atoms on the density of states around the Fermi surface. In addition, the spin-orbit coupling induced band splitting reaches as large as 270 meV along the Γ-Z line. Our results suggest that ThIrP provides a platform to study the interplay between inversion-symmetry breaking, strong spin-orbit coupling, and superconductivity. | GuoRui Xiao QinQing Zhu YanWei Cui WuZhang Yang BaiZhuo Li SiQi Wu Guang-Han Cao Zhi Ren | 2021 | Science China(Physics,Mechanics & Astronomy)2021,64,10: | 1 |
| 12 | Receptor-like protein kinases in plant reproduction: Current understanding and future perspectives显示文摘Reproduction is a crucial process in the life span of flowering plants,and directly affects human basic requirements in agriculture,such as grain yield and quality.Typical receptor-like protein kinases(RLKs)are a large family of membrane proteins sensing extracellular signals to regulate plant growth,development,and stress responses.In Arabidopsis thaliana and other plant species,RLK-mediated signaling pathways play essential roles in regulating the reproductive process by sensing different ligand signals.Molecular understanding of the reproductive process is vital from the perspective of controlling male and female fertility.Here,we summarize the roles of RLKs during plant reproduction at the genetic and molecular levels,including RLK-mediated floral organ development,ovule and anther development,and embryogenesis.In addition,the possible molecular regulatory patterns of those RLKs with unrevealed mechanisms during reproductive development are discussed.We also point out the thought-provoking questions raised by the research on these plant RLKs during reproduction for future investigation. | Yanwei Cui Xiaoting Lu Xiaoping Gou | 2022 | Plant Communications2022,3,1: | 1 |
| 13 | Superconductivity in ThMo_2Si_2C with Mo_2C square net显示文摘We report the superconductivity of a new quaternary compound ThMo_(2)Si_(2)C, synthesized with the arc-melting technique. The compound crystallizes in a tetragonal CeCr_(2)Si_(2)C-type structure with cell parameters of a = 4.2296A and c = 5.3571 A. An interlayer Si–Si covalent bonding is suggested by the atomic distance. The electrical resistivity and magnetic susceptibility measurements indicate a Pauli-paramagnetic metal with dominant electron-electron scattering in the normal-state. Bulk superconductivity at 2.2 K is demonstrated with a dimensionless specific-heat jump of △C/γnT = 0.98. The superconducting parameters of the critical magnetic fields, coherence length, penetration depth, and superconducting energy gap are given. | ZiChen Liu BaiZhuo Li YuSen Xiao QingChen Duan YanWei Cui YuXue Mei Qian Tao ShuLi Wei ShuGang Tan Qiang Jing Qing Lu YuPing Sun YunYan Liu ShengGui Fu Hao Jiang Zhi Ren ZhuAn Xu Cao Wang GuangHan Cao | 2021 | Science China(Physics,Mechanics & Astronomy)2021,64,7: | 1 |
| 14 | The Dof transcription factor COG1 acts as a key regulator of plant biomass by promoting photosynthesis and starch accumulation显示文摘Photosynthetic efficiency is the primary determinant of crop yield,including vegetative biomass and grain yield.Manipulation of key transcription factors known to directly control photosynthetic machinery can be an effective strategy to improve photosynthetic traits.In this study,we identified an Arabidopsis gain-of-function mutant,cogwheel1-3D,that shows a significantly enlarged rosette and increased biomass compared with wild-type plants.Overexpression of COG1,a Dof transcription factor,recapitulated the phenotype of cogwheel1-3D,whereas knocking out COG1 and its six paralogs resulted in a reduced rosette size and decreased biomass.Transcriptomic and quantitative reverse transcription polymerase chain reaction analyses demonstrated that COG1 and its paralogs were required for light-induced expression of genes involved in photosynthesis.Further chromatin immunoprecipitation and electrophoretic mobility shift assays indicated that COG1 can directly bind to the promoter regions of multiple genes encoding light-harvesting antenna proteins.Physiological,biochemical,and microscopy analyses revealed that COG1 enhances photosynthetic capacity and starch accumulation in Arabidopsis rosette leaves.Furthermore,combined results of bioinformatic,genetic,and molecular experiments suggested that the functions of COG1 in increasing biomass are conserved in different plant species.These results collectively demonstrated that COG1 acts as a key regulator of plant biomass by promoting photosynthesis and starch accumulation.Manipulating COG1 to optimize photosynthetic capacity would create new strategies for future crop yield improvement. | Zhuoyun Wei Haoyong Zhang Meng Fang Shuyuan Lin Mingsong Zhu Yuxiu Li Limin Jiang Tianliang Cui Yanwei Cui Hong Kui Liang Peng Xiaoping Gou Jia Li | 2023 | Molecular Plant2023,16,11: | 0 |
| 15 | Plasma-inducedε-MnO_(2)based aqueous zinc-ion batteries and their dissolution-deposition mechanism显示文摘MnO_(2)has attracted great interest in working as the cathode of zinc ion batteries.However,the development of high-capacity,high-energy-density,and durable manganese-based cathodes with an easy synthesis strategy and proper energy storage mechanism remains an ongoing challenge.Herein,a facile plasmainduced strategy was demonstrated to introduce oxygen vacancies into theε-MnO_(2),and the obtained oxygen vacancies-richε-MnO_(2)nanosheets(ε-MnO_(2-x))show satisfactory electrochemical performances.Furthermore,an appropriate energy storage mechanism for dissolution/deposition was proposed.Thanks to a synergistic effect of the oxygen vacancies inε-MnO_(2)nanosheets and the exposed free-standing collector for Mn^(2+) dissolution/deposition,theε-MnO_(2-x) nanosheets electrode delivers a remarkable capacity(337 mAh g^(-1)at 0.1 A g^(-1))and exhibits an ultrahigh energy density of 462 Wh kg^(-1)(based on the weights of the cathode active material).Furthermore,impressive durability with 85.9%capacity retention after 1000 cycles was obtained.The superior electrochemical performance makes the plasma-induced strategy promising for designing advanced metal oxide electrode materials for high-performance aqueous zinc ion batteries. | Le Zhang Shuhua Yang Wenqing Fu Yanwei Cui Jieqiang Wang Degang Zhao Chao Yang Xiutong Wang Bingqiang Cao | 2022 | Journal of Materials Science & Technology2022,,32: | 0 |
| 16 | Causes and Control of Concrete Cracks显示文摘The problem of concrete cracks is a practical problem that is ubiquitous and difficult to solve.In this paper,the causes of some cracks in concrete engineering are analyzed from the aspects of design,material,mix ratio,construction site maintenance and so on.According to the causes of concrete cracks,the measures to control the development of cracks are put forward in the aspects of concrete structure design,concrete material selection,mix proportion optimization and maintenance of construction site.According to the relevant literature,and summarizes the treatment methods of concrete cracks:surface treatment method,filling method,grouting method,structural reinforcement method,concrete replacement method,electrochemical protection method,bionic self-healing method and so on. | Haoyang Tang Yanwei Cui Lechao Du | 2019 | Architecture and Design Review2019,1,1: | 0 |
| 17 | Strong Anisotropic Order Parameters at All-Nitride Ferromagnet/Superconductor Interfaces显示文摘Proximity effects between superconductors and ferromagnets(SC/FM)hold paramount importance in comprehending the spin competition transpiring at their interfaces.This competition arises from the interplay between Cooper pairs and ferromagnetic exchange interactions.The proximity effects between transition metal nitrides(TMNs)are scarcely investigated due to the formidable challenges of fabricating high-quality SC/FM interfaces.We fabricated heterostructures comprising SC titanium nitride(TiN)and FM iron nitride(Fe_(3)N)with precise chemical compositions and atomically well-defined interfaces.The magnetoresistance of Fe_(3)N/TiN heterostructures shows a distinct magnetic anisotropy and strongly depends on the external perturbations.Moreover,the superconducting transition temperatureT_(C) and critical field of TiN experience notable suppression when proximity to Fe_(3)N.We observe the intriguing competition of interfacial spin orientations near��T_(C)(∼1.25 K).These findings not only add a new materials system for investigating the interplay between superconductor and ferromagnets,but also potentially provide a building block for future research endeavors and applications in the realms of superconducting spintronic devices. | Qiao Jin Meng Yang Guozhu Song Nan Zhao Shengru Chen Haitao Hong Ting Cui Dongke Rong Qianying Wang Yiyan Fan Chen Ge Can Wang Jiachang Bi Yanwei Cao Liusuo Wu Shanmin Wang Kui-Juan Jin Zhi-Gang Cheng Er-Jia Guo | 2024 | Chinese Physics Letters2024,41,2: | 0 |
| 18 | Synergistic combination of a Co-doped��σ-MnO_(2)cathode with an electrolyte additive for a high-performance aqueous zinc-ion battery显示文摘The key challenges in aqueous zinc-manganese dioxide batteries(MnO_(2)//Zn)are their poor electrochemical kinetics and stability,which are mainly due to low conductivity and the inevitable dissolution of MnO_(2).A syn-ergistic combination of a Co-doped��σ-MnO_(2)electrode(Co-MnO_(2))and a Co(CH_(3)COO)_(2)•4H_(2)O(CoAc)electrolyte additive is here developed to design a high-performance aqueous MnO_(2)//Zn battery(denoted as a Co-MnO_(2)//Zn battery with CoAc).The introduction of Co ions(Co^(3+)/Co^(2+))into the��σ-MnO_(2)electrode is achieved via a facile one-step electrodeposition method.Benefitting from the synergistic coupling effect of the Co-MnO_(2)electrode and the CoAc electrolyte additive,the fabricated Co-MnO_(2)//Zn battery with CoAc shows a commendable dis-charge capacity of 313.8 mAh g^(−1)at 0.5 A g^(−1),excellent rate performance,excellent durability over 1000 cycles(∼92%capacity retention at 1.0 A g^(−1))and admirable energy density(439.3 Wh kg^(−1)),which is a significant improvement compared with an un-doped��σ-MnO_(2)//Zn battery. | Shuhua Yang Le Zhang Mengjiao Luo Yanwei Cui Jieqiang Wang Degang Zhao Chao Yang Xiutong Wang Bingqiang Cao | 2023 | ChemPhysMater2023,2,1: | 0 |
| 19 | In-situ synthesis,microstructure,and properties of NbB_(2)-NbC-Al_(2)O_(3)composite coatings by plasma spraying显示文摘The high melting point and strong chemical bonding of NbB_(2)pose a great challenge to the preparation of high-density nanostructured NbB_(2)composite coating.Herein,we report a novel,simple,and efficient method to fabricate in-situ NbB_(2)–NbC–Al_(2)O_(3)composite coating by plasma spraying Nb_(2)O_(5)–B_(4)C–Al composite powder,aiming at realizing the higher densification and ultra-fine microstructure of NbB_(2)composite coating.The microstructure and properties of in-situ NbB_(2)–NbC–Al_(2)O_(3)composite coating were studied comparatively with ex-situ NbB_(2)–NbC–Al_(2)O_(3)composite coating(plasma spraying NbB_(2)–NbC–Al_(2)O_(3)composite powder).The reaction mechanism of Nb_(2)O_(5)–B_(4)C–Al composite powder in plasma jet was analyzed in detail.The results showed that the in-situ nanostructured NbB_(2)–NbC–Al_(2)O_(3)composite coating presented a lower porosity and superior performance including higher microhardness,toughness and wear resistance compared to the plasma sprayed ex-situ NbB_(2)–NbC–Al_(2)O_(3)coating and other boride composite coatings.Densification of the in-situ NbB_(2)–NbC–Al_(2)O_(3)coating was attributed to the low melting point of Nb_(2)O_(5)–B_(4)C–Al composite powder and the exothermic effect of in-situ reaction.The superior performance was ascribed to the density improvement and the strengthening and toughening effect of the nanosized phases.The in-situ reaction path could be expressed as:Nb_(2)O_(5)+Al®Nb+Al_(2)O_(3),and Nb+B_(4)C®NbB_(2)+NbC. | Xiaolong WANG Yong YANG Shitong JIA Yanwei WANG Yuduo MA Yuhang CUI Xingyu WANG Wenwei SUN Liang WANG | 2022 | Journal of Advanced Ceramics2022,11,8: | 0 |