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13篇 您的检索式:作者名="Guiming Zhong"
    题名 作者 年代 出处 被引量
1Restricted dispersal determines fine-scale spatial genetic structure of Mongolian gerbils显示文摘Guiming WANG Wei LIU Yanni WANG Xinrong WAN Wenqin ZHONG 2017Current Zoology2017,63,6:2
2Revealing the correlation between structure evolution and electrochemical performance of high-voltage lithium cobalt oxide显示文摘Lithium cobalt oxide(LCO)is the dominating cathode materials for lithium-ion batteries(LIBs)deployed in consumer electronic devices for its superior volumetric energy density and electrochemical performances.The constantly increasing demands of higher energy density urge to develop high-voltage LCO via a variety of strategies.However,the corresponding modification mechanism,especially the influence of the long-and short-range structural transitions at high-voltage on electrochemical performance,is still not well understood and needs further exploration.Based on ss-NMR,in-situ X-ray diffraction,and electrochemical performance results,it is revealed that the H3 to H1-3 phase transition dictates the structural reversibility and stability of LCO,thereby determining the electrochemical performance.The introduction of La and Al ions could postpone the appearance of H1-3 phase and induce various types of local environments to alleviate the volume variation at the atomic level,leading to better reversibility of the H1-3 phase and smaller lattice strain,and significantly improved cycle performance.Such a comprehensive long-range,local,and electronic structure characterization enables an in-depth understanding of the structural evolution of LCO,providing a guiding principle for developing high-voltage LCO for high energy density LIBs.Jiajia Wan Jianping Zhu Yuxuan Xiang Guiming Zhong Xiangsi Liu Yixiao Li Kelvin H.L.Zhang Chaoyu Hong Jianming Zheng Kai Wang Yong Yang 2021Journal of Energy Chemistry2021,30,3:1
3Modification of NASICON Electrolyte and Its Application in Real Na-Ion Cells显示文摘The low ionic conductivity of solid-state electrolytes(SSEs)and the inferior interfacial reliability between SSEs and solid-state electrodes are two urgent challenges hindering the application of solid-state sodium batteries(SSSBs).Herein,sodium(Na)super ionic conductor(NASICON)-type SSEs with a nominal composition of Na_(3+2x)Zr_(2-x)MgxSi_(2)PO_(12) were synthesized using a facile two-step solid-state method,among which Na_(3.3)Zr_(1.85)Mg_(0.15)Si_(2)PO_(12)(x=0.15,NZSP-Mg_(0.15))showed the highest ionic conductivity of 3.54mS∙cm^(-1) at 25℃.By means of a thorough investigation,it was verified that the composition of the grain boundary plays a crucial role in determining the total ionic conductivity of NASICON.Furthermore,due to a lack of examination in the literature regarding whether NASICON can provide enough anodic electrochemical stability to enable high-voltage SSSBs,we first adopted a high-voltage Na_(3)(VOPO_(4))2F(NVOPF)cathode to verify its compatibility with the optimized NZSP-Mg_(0.15) SSE.By comparing the electrochemical performance of cells with different configurations(low-voltage cathode vs high-voltage cathode,liquid electrolytes vs SSEs),along with an X-ray photoelectron spectroscopy evaluation of the after-cycled NZSP-Mg_(0.15),it was demonstrated that the NASICON SSEs are not stable enough under high voltage,suggesting the importance of investigating the interface between the NASICON SSEs and high-voltage cathodes.Furthermore,by coating NZSP-Mg_(0.15) NASICON powder onto a polyethylene(PE)separator(PE@NASICON),a 2.42 A∙h non-aqueous Na-ion cell of carbon|PE@NASICON|NaNi_(2/9)Cu_(1/9)Fe_(1/3)Mn_(1/3)O_(2) was found to deliver an excellent cycling performance with an 88%capacity retention after 2000 cycles,thereby demonstrating the high reliability of SSEs with NASICON-coated separator.Qiangqiang Zhang Quan Zhou Yaxiang Lu Yuanjun Shao Yuruo Qi Xingguo Qi Guiming Zhong Yong Yang Liquan Chen Yong-Sheng Hu 2022Engineering2022,8,1:1
4Some discussions on semilocal rings显示文摘Zhang Guiming and Zhong Qi 1993Journal of Sichuan Normal University1993,16,2:1
5Some discussions on semilocal rings显示文摘Guiming Zhang and Qi Zhong 1993Journal of Sichuan Normal University1993,16,2:1
6Quasi-Solid-State Ion-Conducting Arrays Composite Electrolytes with Fast Ion Transport Vertical-Aligned Interfaces for All-Weather Practical Lithium-Metal Batteries显示文摘The rapid improvement in the gel polymer electrolytes(GPEs)with high ionic conductivity brought it closer to practical applications in solid-state Li-metal batteries.The combination of solvent and polymer enables quasi-liquid fast ion transport in the GPEs.However,different ion transport capacity between solvent and polymer will cause local nonuniform Li+distribution,leading to severe dendrite growth.In addition,the poor thermal stability of the solvent also limits the operating-temperature window of the electrolytes.Optimizing the ion transport environment and enhancing the thermal stability are two major challenges that hinder the application of GPEs.Here,a strategy by introducing ion-conducting arrays(ICA)is created by vertical-aligned montmorillonite into GPE.Rapid ion transport on the ICA was demonstrated by 6Li solid-state nuclear magnetic resonance and synchrotron X-ray diffraction,combined with computer simulations to visualize the transport process.Compared with conventional randomly dispersed fillers,ICA provides continuous interfaces to regulate the ion transport environment and enhances the tolerance of GPEs to extreme temperatures.Therefore,GPE/ICA exhibits high room-temperature ionic conductivity(1.08 mS cm^(−1))and long-term stable Li deposition/stripping cycles(>1000 h).As a final proof,Li||GPE/ICA||LiFePO_(4) cells exhibit excellent cycle performance at wide temperature range(from 0 to 60°C),which shows a promising path toward all-weather practical solid-state batteries.Xinyang Li Yong Wang Kai Xi Wei Yu Jie Feng Guoxin Gao Hu Wu Qiu Jiang Amr Abdelkader Weibo Hua Guiming Zhong Shujiang Ding 2022Nano-Micro Letters2022,14,12:1
7Epidemiology and vector efficiency during a dengue fever outbreak in Cixi, Zhejiang Province, China显示文摘Yang Tianci Lu Liang Fu Guiming Zhong Shi Ding Gangqiang Xu Rong Zhu Guangfeng Shi Nanfeng Fan Feilong Liu Qiyong 2009Journal of Vector Ecology2009,,1:1
8Reversible potassium storage in ultrafine CF_(x): A superior cathode material for potassium batteries and its mechanism显示文摘Current studies of cathodes for potassium batteries(PBs) mainly focus on the intercalation-type materials.The conversion-type materials that possess much higher theoretical capacities are rarely discussed in previous literatures.In this work,carbon fluoride(CF_x) is reported as a high capacity conversion-type cathode for PBs for the first time.The material delivers a remarkable discharge capacity of>250 mAh g^(-1) with mid-voltage of 2.6 V at 20 mA g^(-1).Moreover,a highly reversible capacity of around 95 mAh g^(-1) is achieved at 125 mA g^(-1) and maintained for 900 cycles,demonstrating its excellent cycling stability.The mechanism of this highly reversible conversion reaction is further investigated by nuclear magnetic resonance spectra,X-ray diffraction,and transmission electron microscopy studies.According to the analyses,the C-F bond in the cycled material is different from that in the pristine state,which presents relatively higher reversibility.This finding offers important insights for further improving the performance of the CF_x.This work not only demonstrates the CF_x as a high performance cathode for PBs,but also paves a new avenue of exploring conversion-type cathodes for high energy density PBs.Hongjun Yue Huixin Chen Chen Zhao Zhiming Zheng Ke Zhou Qjaobao Zhang Guiming Zhong Can-Zhong Lu Yong Yang 2021Journal of Energy Chemistry2021,30,2:0
9Metabolic Profiling in Banana Pseudo-Stem Reveals a Diverse Set of Bioactive Compounds with Potential Nutritional and Industrial Applications显示文摘Banana(Musa spp.)is an ancient and popular fruit plant with highly nutritious fruit.The pseudo-stem of banana represents on average 75%of the total dry mass but its valorization as a nutritional and industrial by-product is limited.Recent advances in metabolomics have paved the way to understand and evaluate the presence of diverse sets of metabolites in different plant parts.This study aimed at exploring the diversity of primary and secondary metabolites in the banana pseudo-stem.Hereby,we identified and quantified 373 metabolites from a diverse range of classes including,alkaloids,flavonoids,lipids,phenolic acids,amino acids and its derivatives,nucleotide and its derivatives,organic acids,lignans and coumarins,tannins,and terpene using the widely-targeted metabolomics approach.Banana pseudo-stem is enriched in metabolites for utilization in the food industry(L-lysine and L-tryptophan,L-glutamic acid,Phenylalanine,Palmitoleic acid,α-Linolenic acid,and Lauric acid,and Adenine)and pharmaceutical industry(Guanosine and Cimidahurinine,Bergapten,Coumarins,Procyanidin A2,Procyanidin B1,Procyanidin B3,Procyanidin B2,and Procyanidin B4,Asiatic acid).The metabolome of banana pseudo-stem with integration across multiomics data may provide the opportunity to exploit the rich metabolome of banana pseudo-stem for industrial and nutritional applications.Guiming Deng Ou Sheng Fangcheng Bi Chunyu Li Tongxin Dou Tao Dong Qiaosong Yang Huijun Gao Jing Liu Xiaohong Zhong Miao Peng Ganjun Yi Weidi He Chunhua Hu 2020Phyton-International Journal of Experimental Botany2020,89,4:0
10Deciphering the potassium storage phase conversion mechanism of phosphorus by combined solid-state NMR spectroscopy and density functional theory calculations显示文摘Phosphorus is the potential anode material for emerging potassium-ion batteries(PIBs)owing to the highest specific capacity and relatively low operation plateau.However,the reversible delivered capacities of phosphorus-based anodes,in reality,are far from the theoretical capacity corresponding to the formation of K3P alloy.And,their underlying potassium storage mechanisms remain poorly understood.To address this issue,for the first time,we perform high-resolution solid-state31P NMR combined with XRD measurements,and density functional theory calculations to yield a systemic quantitative understanding of(de)potassiation reaction mechanism of phosphorus anode.We explicitly reveal a previously unknown asymmetrical nanocrystalline-to-amorphous transition process via rP←→(K_(3)P_(11),K_(3)P_(7),beta-K_(4)P_(6))←→(alpha-K4P6)←→(K_(1-x)P,KP,K_(4-x)P3,K_(1+x)P)←→(amorphous K4P3,amorphous K3P)that are proceed along with the electrochemical potassiation/depotassiation processes.Additionally,the corresponding KP alloys intermediates,such as the amorphous phases of K_(4)P_(3),K_(3)P,and the nonstoichiometric phases of“K_(1-x)P”,“K_(1+x)P”,“K_(4-x)P_(3)”are experimentally detected,which indicating various complicated K-P alloy species are coexisted and evolved with the sluggish electrochemical reaction kinetics,resulting in lower capacity of phosphorus-based anodes.Our findings offer some insights into the specific multi-phase evolution mechanism of alloying anodes that may be generally involved in conversion-type electrode materials for PIBs.Huixin Chen Lingyi Meng Hongjun Yue Chengxin Peng Qiaobao Zhang Guiming Zhong Ding Chen 2023Journal of Energy Chemistry2023,,4:0
11陶瓷液态混合电解质中锂离子自发交换和协同传导实现高效转移显示文摘陶瓷电解质被广泛用于构建固液混合电解质,对提升固液混合电池的电化学性能和安全性能具有重要作用.然而,固液混合电解质中锂离子的传输机制尤其是陶瓷电解质对离子输运的贡献尚不清楚.该工作设计了3种陶瓷液态混合电解质,通过固态核磁共振谱追踪锂同位素离子,揭示了固液混合电解质中的离子传输路径.实验结果表明,在陶瓷液态混合电解质中,陶瓷电解质能够和液态电解质同时传导锂离子,并发现陶瓷电解质和液态电解质之间存在自发锂离子交换,进一步促进了固液混合电解质系统中高效的锂离子传导.该工作揭示的固液混合传导机制和模型为固液混合电解质和电池的发展提供了理论基础.Kai Shi Likun Chen Zipei Wan Jie Biao Guiming Zhong Xue Li Lu Yang Jiabin Ma Wei Lv Fuzeng Ren Hongqi wang Yong Yang Feiyu Kang Yan-Bing He 2022Science Bulletin2022,67,9:0
12Revealing the effect of electrolyte coordination structures on the intercalation chemistry of batteries显示文摘In-depth understanding of the electrolyte-dependent intercalation chemistry in batteries through direct operando/in situ characterizations is crucial for the development of the high-performance batteries.Herein,taking the Al/graphite battery as a model system,the effect of electrolyte coordination structure on the intercalation processes has been investigated over the batteries with either 1-hexyl-3-methylimidazolium chloride(HMICl)-AlCl_(3) or 1-ethyl-3-methylimidazolium chloride(EMICl)-AlCl_(3) ionic liquid electrolyte using operando X-ray photoelectron spectroscopy(XPS)and X-ray diffraction.With a weaker anion-cation interaction in HMI-based electrolyte,the XPS-derived atomic ratio between cointercalated N and intercalated Al is 0.9,which is lower than 1.6 for EMI-based electrolyte.Attributed to the additional de-solvation process,the batteries with the HMI-based electrolyte show a lower ionic diffusion rate,capacity,and cycling performance,which agree with the operando characterization results.Our findings highlight the critical role of the electrolyte coordination structure on the(co-)intercalation chemistry.Chao Wang Xianjin Li Guiming Zhong Caixia Meng Shiwen Li Guohui Zhang Yanxiao Ning Xianfeng Li Qiang Fu 2023Journal of Energy Chemistry2023,,6:0
13The origins of kinetics hysteresis and irreversibility of monoclinic Li_(3)V_(2)(PO_(4))_(3)显示文摘Monoclinic Li_(2)V_(2)(PO_(4))_(3);is a promising cathode material with complex charge–discharge behavior.Previous structural investigation of this compound mainly focuses on local environments;while the reaction kinetics and the driving force of irreversibility of this material remain unclear.To fully understand the above issues,both the equilibrium and the non-equilibrium reaction routes have been systematically investigated in this study.Multiple characterization techniques including X-ray diffraction,variable temperature(spinning rate)and ex/in situ ^(7)Li,^(31)P solid state NMR have been employed to provide comprehensive insights into kinetics,dynamics,framework structure evolution and charge ordering,which is essential to better design and application of lithium transition metal phosphate cathodes.Our results suggest that the kinetics process between the non-equilibrium and the quasi-equilibrium delithiation pathways from Li_(2)V_(2)(PO_(4))_(3);to V_(2)(PO_(4))_(3);is related with a slow relaxation from two-site to one-site delithiation.More importantly,it has been demonstrated that the irreversibility in this system is not solely affected by cation and/or charge ordering/disordering,but mainly driven by framework structure distortion.Hua Huo Zeyu Lin Guiming Zhong Shuaifeng Lou Jiajun Wang Yulin Ma Changsong Dai Yueping Xiong Geping Yin Yong Yang 2022Journal of Energy Chemistry2022,31,4:0
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