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| 1 | Effects of exogenous short-chain N-acyl homoserine lactone on denitrifying process of Paracoccus denitrificans显示文摘N-acyl-homoserine lactones(AHLs) serve as quorum-sensing signals, which control a number of bacterial processes in many proteobacteria. Here we report the effects of exogenous short-chain AHL on the denitrifying process of Paracoccus denitrificans, which are capable of aerobic and anaerobic growth by utilizing nitrate. The denitrification activity of these cells was monitored by measuring denitrification products(including nitrate, nitrite,and nitrous oxide), and the individual messenger ribonucleic acid(m RNA) levels of nitrate,nitrite, nitric oxide and nitrous oxide reductases. The results indicated that 2 μmol/L C6-homoserine lactone(HSL) has little effect on cell density under either anaerobic or aerobic culture conditions, and the nitrate reduction activity appeared slightly affected by N-hexanoyl-DL-homoserine lactone(C6-HSL). However, exogenous C6-HSL significantly affected the transcription of nitrite reductase and nitric oxide reductase genes in P.denitrificans regardless of the presence of oxygen, and N_2O accumulation activity in P. denitrificans was suppressed by C6-HSL under aerobic condition. In contrast, exogenous C6-HSL stimulated the production of N_2O under anaerobic condition, suggesting that the regulation of denitrification by quorum sensing may be important in N_2O release. | Yun Cheng Yang Zhang Qiuxuan Shen Jie Gao Guoqiang Zhuang Xuliang Zhuang | 2017 | Journal of Environmental Sciences2017，29，4： | 6 |
| 2 | Symmetry energy dependence of the pygmy and giant dipole resonances in an isospin dependent quantum molecular dynamics model显示文摘Isospin-dependent Quantum Molecular Dynamics model (IQMD) has been applied to investigate the Pygmy Dipole Resonance (PDR) and Giant Dipole Resonance (GDR) in Ni isotopes by Coulomb excitation. By Gaussian fitting to the photon emission spectra, the peak energies and strengths of PDR and GDR are extracted. Their sensitivities to impact parameter, incident energy and the symmetry energy are discussed. By the comparison of energy-weighted sum rule (EWSR) with the data and other calculations for 68 Ni, the parameters of density-dependence of symmetry energy in the IQMD are constrained. In addition, the N/Z dependence of PDR and GDR parameters of Ni isotopes are investigated, and the results that the EWSR increases linearly with the N/Z are obtained. | TAO Cheng MA Yugang ZHANG Guoqiang CAO Xiguang FANG Deqing WANG Hongwei | 2013 | Nuclear Science and Techniques2013，24，3： | 5 |
| 3 | Insights into Enhanced Capacitive Behavior of Carbon Cathode for Lithium Ion Capacitors: The Coupling of Pore Size and Graphitization Engineering显示文摘The lack of methods to modulate intrinsic textures of carbon cathode has seriously hindered the revelation of in-depth relationship between inherent natures and capacitive behaviors,limiting the advancement of lithium ion capacitors(LICs).Here,an orientateddesigned pore size distribution(range from 0.5 to 200 nm)and graphitization engineering strategy of carbon materials through regulating molar ratios of Zn/Co ions has been proposed,which provides an effective platform to deeply evaluate the capacitive behaviors of carbon cathode.Significantly,after the systematical analysis cooperating with experimental result and density functional theory calculation,it is uncovered that the size of solvated PF6-ion is about 1.5 nm.Moreover,the capacitive behaviors of carbon cathode could be enhanced attributed to the controlled pore size of 1.5-3 nm.Triggered with synergistic effect of graphitization and appropriate pore size distribution,optimized carbon cathode(Zn90Co10-APC)displays excellent capacitive performances with a reversible specific capacity of^50 mAh g-1at a current density of 5 A g-1.Furthermore,the assembly pre-lithiated graphite(PLG)//Zn90Co10-APC LIC could deliver a large energy density of 108 Wh kg-1 and a high power density of 150,000 W kg-1 as well as excellent long-term ability with 10,000 cycles.This elaborate work might shed light on the intensive understanding of the improved capacitive behavior in LiPF6 electrolyte and provide a feasible principle for elaborate fabrication of carbon cathodes for LIC systems. | Kangyu Zou Peng Cai Baowei Wang Cheng Liu Jiayang Li Tianyun Qiu Guoqiang Zou Hongshuai Hou Xiaobo Ji | 2020 | Nano-Micro Letters2020，12，9： | 4 |
| 4 | THE DYNAMIC BUCKLING OF ELASTIC-PLASTIC COLUMN SUBJECTED TO AXIAL IMPACT BY A RIGID BODY显示文摘The dynamic buckling of an elastic-plastic column subjected to axial impact by arigid body has been discussed in this paper. The whole traveling process of elastic-plastic wavesunder impact action is analyzed with the characteristics method. The regularity of stress changesin both column ends and the first separating time of a rigid body and column are obtained. Byusing the energy principle and taking into account the propagation and reffection of stress wavesthe lateral disturbance equation is derived and the power series solution is given. In addition,the critical buckling condition can be obtained from the stability analysis of the solution. Bynumerical computation and analysis, the relationship among critical velocity and impact mass,hardening modulus, and buckling time is given. | Han Zhijun Wang Jingchao Cheng Guoqiang Ma Hongwei Zhang Shanyuan | 2005 | Acta Mechanica Solida Sinica2005，18，3： | 4 |
| 5 | Celastrol suppresses colorectal cancer via covalent targeting peroxiredoxin 1显示文摘As a terpenoids natural product isolated from the plant Thunder God Vine,Celastrol is widely studied for its pharmacological activities,including anti-tumor activities.The clinical application of Celastrol is strictly limited due to its severe side effects,whereas previously revealed targets and mechanism of Celastrol seldom reduce its in vivo toxicity via structural optimization.Target identification has a far-reaching influence on the development of innovative drugs,and omics data has been widely used for unbiased target prediction.However,it is difficult to enrich target of specific phenotype from thousands of genes or proteins,especially for natural products with broad promising activities.Here,we developed a text-mining-based web-server tool to enrich targets from omics data of inquired compounds.Then peroxiredoxin 1(PRDX1)was identified as the ROS-manipulating target protein of Celastrol in colorectal cancer.Our solved high-resolution crystal structure revealed the unique covalent binding mode of Celastrol with PRDX1.New derivative compound 19-048 with improved potency against PRDX1 and selectivity towards PRDX2~PRDX6 were synthesized based on crystal structure analysis.Both Celastrol and 19-048 effectively suppressed the proliferation of colorectal cancer cells.The anti-tumor efficacy of Celastrol and 19-048 was significantly diminished on xenograft nude mice bearing PRDX1 knock-down colorectal cancer cells.Several downstream genes of p53 signaling pathway were dramatically up-regulated with Celastrol or 19-048 treatment.Our findings reveal that the side effects of Celastrol could be reduced via structural modification,and PRDX1 inhibition is promising for the treatment of colorectal cancer. | Heng Xu Hongfang Zhao Chunyong Ding Defang Jiang Zijie Zhao Yang Li Xiaoyu Ding Jing Gao Hu Zhou Cheng Luo Guoqiang Chen Ao Zhang Ying Xu Hao Zhang | 2023 | Signal Transduction and Targeted Therapy2023，8，3： | 3 |
| 6 | High-risk phenotypes of genetic disease in a Neonatal Intensive Care Unit population显示文摘To the Editor: Genetic diseases contribute to 35% of deaths during the first year of life and are a significant cause of intensive care.[1] A previous study based on the China Neonatal Genomes Project investigated the genetic causes of early infant deaths and found that >25% of deceased neonates with genetic diagnoses can be cured if diagnosed in time.[2] Therefore, it is crucial to target and diagnose neonates with genetic diseases as early as possible. According to our experience, the typical phenotypes, such as special facial features or multiple congenital anomalies (MCAs), indicate a high risk of genetic disease and lead physicians to perform genetic testing in neonates as early as possible. However, in practice, infants without typical phenotypes typically undergo a long and costly diagnostic process before genetic diagnoses are confirmed. Moreover, a recent survey by the American College of Medical Genetics and Genomics (ACMG) and other national professional organizations indicated that there are insufficient numbers of qualified geneticists to fulfil genetic service needs.[3] The ACMG published the general clinical features for genetic testing indications. For example, patients with phenotypes or family history data that strongly implicate a genetic cause may undergo genetic testing.[1] However, the study indicated that many genetic conditions arise de novo or are inherited with no family history.[1] A previous study attempted to apply the non-phenotype-driven panel approach in neonates admitted to the neonate intensive care unit (NICU).[4] However, at present, the diagnostic yield is only 3.45% (1/29).[4] In addition, the economic and ethical issues associated with genomic screening remain challenging. Therefore, the available indications for genetic testing may improve the management of genetic diseases. | Tiantian Xiao Qi Ni Huiyao Chen Huijun Wang Lin Yang Bingbing Wu Yun Cao Guoqiang Cheng Laishuan Wang Liyuan Hu Hongfang Mei Yulan Lu Mengchun Gong Xinran Dong Wenhao Zhou | 2022 | Chinese Medical Journal2022，，5： | 2 |
| 7 | P2P traffic optimization显示文摘Peer-to-peer (P2P) based content distribution systems have emerged as the main form for content distribution on the Internet,which can greatly reduce the distribution cost of content providers and improve the overall system scalability.However,the mismatch between the overlay and underlay networks causes large volume of redundant traffic,which intensifies the tension between P2P content providers and ISPs.Therefore,how to efficiently use network resources to reduce the traffic burden on the ISPs is crucial for the sustainable development of P2P systems.This paper surveys the state-of-art P2P traffic optimization technologies from three perspectives:P2P cache,locality-awareness and data scheduling.Technological details,comparison between these technologies and their applicabilities are presented,followed by a discussion of the issues that remain to be addressed and the direction of future content distribution research. | ZHANG GuoQiang TANG MingDong CHENG SuQi ZHANG GuoQing SONG HaiBin CAO JiGuang YANG Jing | 2012 | Science China(Information Sciences)2012，55，7： | 2 |
| 8 | Mutagenesis reveals that the rice OsMPT3 gene is an important osmotic regulatory factor显示文摘Plant mitochondrial phosphate transporters regulate phosphate transport and ATP synthesis. Determining whether they function in abiotic stress response process would shed light on their response to salt stress. We used the CRISPR/Cas9 gene-editing system to mutagenize two mitochondrial phosphate transporters, OsMPT3;1 and OsMPT3;2, to investigate their regulatory roles under salt stress. Two cas9(CRISPR-associated protein9)-free homozygous mutants, mpt33 and mpt30, were confirmed to be stable. Both OsMPT3;1 and OsMPT3;2 were markedly induced by salt stress, and their mutagenesis strongly inhibited growth and development, especially under salt stress. Mutagenesis sharply reduced the accumulation of ATP, phosphate, calcium, soluble sugar, and proline and increased osmotic potential, malondialdehyde, and Na^+ /K^+ ratio under salt stress. Both mutants demonstrate normal growth and development in the presence of ATP, revealing high sensitivity to exogenous ATP under salt stress. The mutants showed lowered rates of Na^+ efflux but also of K^+ and Ca^(2+) influx under salt stress. Mutagenesis of OsMPT3;2 altered the enrichment profiles of differentially expressed genes involved mainly in synthesis of secondary metabolites, metabolism of glycolysis, pyruvate, tricarboxylic acid cycle, in response to salt stress. The mutant displayed significant accumulation differences in 14 metabolites involved in 17 metabolic pathways, and strongly up-regulated the accumulation of glutamine, a precursor in proline synthesis, under salt stress. These findings suggest that the OsMPT3 gene modulates phosphate transport and energy supply for ATP synthesis and triggers changes in accumulation of ions and metabolites participating in osmotic regulation in rice under salt stress, thus increasing rice salt tolerance. This study demonstrates the effective application of CRISPR/Cas9 gene-editing to the investigation of plant functional genes. | Shengcai Huang Shichao Xin Guoqiang Xie Jiao Han Zhonglai Liu Bing Wang Shuqing Zhang Qingyu Wu Xianguo Cheng | 2020 | The Crop Journal2020，8，3： | 2 |
| 9 | The initial analysis of greenbelt in Shanghai显示文摘 | LU Jindong WU Guoqiang YU Si- cheng | 1999 | China Garden1999，，2： | 1 |
| 10 | Design andanalysis of a smart composite pipe joint system integrated with piezoelectric layers under bending 显示文摘 | Cheng Jinquan Wu Xiaoxia Li Guoqiang | 2007 | International Journal of Solids and Structures2007，，44： | 1 |
| 11 | Loss of lncRNA SNHG8 promotes epithelial-mesenchymal transition by destabilizing CDH1 mRNA显示文摘Long non-coding RNAs(lnc RNAs) are widely involved in a variety of biological processes, including epithelial-mesenchymal transition(EMT). In the current study, we found that lnc RNA small nucleolar RNA host gene 8(SNHG8) was tightly correlated with EMT-associated gene signatures, and was down-regulated by Zinc finger E-box-binding homeobox 1(ZEB1) during EMT progress. Functionally, knockdown of SNHG8 induced EMT in epithelial cells, through destabilizing the CDH1 m RNA dependent on a 17-nucleotide sequence shared by SNHG8 and CDH1. In addition, analysis with public database showed that SNHG8 tended to be down-regulated in different cancer types and the lower expression of SNHG8 predicted poorer prognosis.Taken together, our study reports a ZEB1-repressed lnc RNA SNHG8 which is important for stabilizing CDH1 m RNA, thereby maintaining the epithelial status of epithelial cells. | Ping He Cheng Zhang Guoqiang Chen Shaoming Shen | 2021 | Science China(Life Sciences)2021，64，11： | 1 |
| 12 | Evaluation of the Mechanisms Underlying Amino Acid and Microbiota Interactions in Intestinal Infections Using Germ-Free Animals显示文摘Intestinal infectious diseases refer to the inflammatory changes in the intestinal tract caused by pathogens(including bacteria,viruses,fungi,protozoa,or parasites)or their toxic products.A large number of microorganisms colonize the intestinal tract of healthy people,which together with the intestinal epithelium constitute the biological barrier of the intestinal tract to resist infectious diseases.As an“invisible organ,”the intestinal flora is closely related to human nutrition metabolism and intestinal infections.A variety of intestinal flora participates in the nutritional metabolism of amino acids,and the small molecular substances produced by the amino acid metabolism through the intestinal flora can enhance intestinal immunity and resist bacterial infections.In turn,amino acids can also regulate the composition of the intestinal flora,maintain the steady-state of the intestinal flora,protect the intestinal barrier,and inhibit colonization by pathogenic bacteria.As a model animal with a clear microbial background,germ-free(GF)animals can clarify the mechanisms of interactions between intestinal microbes and amino acid metabolism in intestinal infections by combining genetic engineering technology and multi-omics studies.This article reviews related researches on the involvement of intestinal microbes in host amino acid metabolism and resistance to intestinal infections and discusses the advantages of GF animal models for studying the underlying mechanisms.The GF animal model is helpful to further study the intervention effects of amino acid metabolism of targeted intestinal flora on intestinal infections. | Yapeng Yang Peng Bin Shiyu Tao Guoqiang Zhu Zhifeng Wu Wei Cheng Wenkai Ren Hong Wei | 2021 | Infectious Microbes & Diseases2021，3，2： | 1 |
| 13 | Single-atom Cu anchored on N-doped graphene/carbon nitride heterojunction for enhanced photocatalytic H_(2)O_(2) production显示文摘Photocatalytic production of H_(2)O_(2) by polymeric carbon nitride has been regarded as a promising ap-proach for the conversion of solar energy into valuable chemicals.However,the efficiency of pristine car-bon nitride is limited by the rapid charge recombination and the lack of suitable active sites.Herein,we introduce single-atom Cu anchored on N-doped graphene(Cu-NG)as a cocatalyst coupled with carbon nitride via covalent bonding to enhance photocatalytic H_(2)O_(2) production.The Cu-NG/carbon nitride could broaden the light absorption from UV to near-infrared region,contributing to the photocatalytic process.Moreover,NG containing electron-rich N atoms could serve as anchoring sites for stabilizing single-atom Cu.Importantly,the single-atom Cu acts not only as an electron sink to steer the interfacial charge sep-aration but also as an active site for molecular oxygen adsorption and activation.With the synergistic effect of the enhanced interfacial charge separation and suitable active sites,Cu-NG/carbon nitride ex-hibits improved photocatalytic performance with an H_(2)O_(2) generation rate of 2856μmol g^(−1)h^(−1),which is 2.6 times that of pristine carbon nitride.This work provides a protocol for high-performance photocat-alytic H_(2)O_(2) production using a single-atom cocatalyst. | Han Li Bicheng Zhu Bei Cheng Guoqiang Luo Jingsan Xu Shaowen Cao | 2023 | Journal of Materials Science & Technology2023，，30： | 1 |
| 14 | Simplified qua- ternary signed-digit arithmetic and its optical implementation 显示文摘 | Li Guoqiang Liu Liren Cheng Huiquan | 1998 | Opt Commun1998，137，： | 1 |
| 15 | Hollow carbon microbox from acetylacetone as anode material for sodium-ion batteries显示文摘Carbon-based materials have attracted much interest as one of the promising anodes for sodium-ion batteries. However, low utilization of electrolyte and slow ion-transfer rate during electrochemical process hinder the further application of traditional bulk carbon. In order to enhance the diffusion kinetics and maintain the reversibility, hierarchical hollow carbon microbox was successfully prepared through a tunable bottom-up self-template routine for sodium-ion batteries. During annealing process, the morphology construction and activation happened synchronously. Based on that, a range of cross-linked porous nanosheet and hollow microbox were attained by manipulating reactant condition. The generation of texture and physical property are analyzed and are established linkages related to the electrochemical behavior. As results depicted in kinetic exploration and simulation based on cyclic voltammetry, the surfacecontrolled electrochemical behavior gradually turns to be the diffusion-controlled behavior as the hollow microbox evolves to porous nanosheet. The probable reason is that the rational microstructure/texture design leads to the accelerated diffusion kinetic procedure and the reduced concentration difference polarization. Sodium storage mechanism was deduced as reversible binding of Na-ions with local defects,including vacancies on sp2 graphitic layers, at the edges of flakes and other structural defects instead of intercalation. Bestowed by the morphology design, the broad pore width distribution, abundant defects/active sites and surface functionality, hollow microbox electrode delivers great electrochemical performances. This work is expected to propose a novel and effective strategy to prepare tunable hierarchical hollow carbon microbox and induce the fast kinetic of carbon anode material. | Tianyun Qiu Wanwan Hong Lin Li Yu Zhang Peng Cai Cheng Liu Jiayang Li Guoqiang Zou Hongshuai Hou Xiaobo Ji | 2020 | Journal of Energy Chemistry2020，29，12： | 1 |
| 16 | 靶向肾癌中的E3连接酶接头蛋白SPOP的小分子抑制剂显示文摘近年来肾癌发病率上升幅度在恶性肿瘤中排名第一。临床治疗表明,肾癌对放疗和化疗均不敏感,以索拉非尼和舒尼替尼为代表的靶向抗肿瘤药物是晚期肾癌的一线治疗药物,但对转移性肾癌的疗效十分有限,并且容易产生耐药。因此,发现并确证治疗肾癌特异性药物作用新靶标是一项十分紧迫并意义重大的任务。 | Zhong-Qiang Guo Tong Zheng Baoen Chen Cheng Luo Sisheng Ouyang Shouzhe Gong Jiafei Li Liu-Liang Mao Fulin Lian Yong Yang Yue Huang Li Li Jing Lu Bidong Zhang Luming Zhou Hong Ding Zhiwei Gao Liqun Zhou Guoqiang Li Ran Zhou Ke Chen Jingqiu Liu Yi Wen Likun Gong Yuwen Ke Shang-Dong Yang Xiao-Bo Qiu Naixia Zhang Jin Ren Dafang Zhong 杨财广 刘江 蒋华良 | 2017 | 科学新闻2017，19，4： | 1 |
| 17 | Highly selective electrocatalytic Cl− oxidation reaction by oxygen-modified cobalt nanoparticles immobilized carbon nanofibers for coupling with brine water remediation and H2 production显示文摘Combining the H2 production with brine remediation is regarded as a sustainable approach to achieving clean H2 energy. However, designing stable Cl− oxidation reaction (COR) electrocatalyst is the key to realize this route. Herein, a type of oxygen-modified Co nanoparticles anchored graphitic carbon nanofibers catalyst (Co/GCFs) was synthesized through a two-step strategy of adsorption and pyrolysis. The Co/GCFs-2.4 exhibits high selectivity and stability for COR at neutral electrolyte. It is worth noting that unlike the water oxidation, the chemical valence of cobalt has not changed during the COR. Further results demonstrated that the oxygen-modified Co nanoparticles provide active sites for selective COR, meanwhile, the graphitic carbon gives rise to strong catalytic stability. Thanks to the superior COR and H2 production activity of Co/GCFs-2.4, a two-electrode brine electrocatalysis system employing Co/GCFs-2.4 as both cathode and anode for H2 production exhibited robust stability, efficient and high Faraday efficiency (98%-100%). We propose that this work provides a novel strategy for designing efficient and stable catalysts with electrocatalytic COR and HER activities at neutral brine water for practically coupling with H2 production by water electrolysis and brine water remediation. | Qizhong Xiong Xian Zhang Qipeng Cheng Guoqiang Liu Gang Xu Junli Li Xinxin Ye Hongjian Gao | 2021 | Nano Research2021，14，5： | 1 |
| 18 | The miR167-OsARF12 module regulates rice grain filling and grain size downstream of miR159显示文摘Grain weight and quality are always determined by grain filling.Plant microRNAs have drawn attention as key targets for regulation of grain size and yield.However,the mechanisms that underlie grain size regulation remain largely unclear because of the complex networks that control this trait.Our earlier studies demonstrated that suppressed expression of miR167(STTM/MIM167)substantially increased grain weight.In a field test,the yield increased up to 12.90%-21.94% because of a significantly enhanced grain filling rate.Here,biochemical and genetic analyses revealed the regulatory effects of miR159 on miR167 expression.Further analysis indicated that OsARF12 is the major mediator by which miR167 regulates rice grain filling.Overexpression of OsARF12 produced grain weight and grain filling phenotypes resembling those of STTM/MIM167 plants.Upon in-depth analysis,we found that OsARF12 activates OsCDKF;2 expression by directly binding to the TGTCGG motif in its promoter region.Flow cytometry analysis of young panicles from OsARF12-overexpressing plants and examination of cell number in cdkf;2 mutants verified that OsARF12 positively regulates grain filling and grain size by targeting OsCDKF;2.Moreover,RNA sequencing results suggested that the miR167-OsARF12 module is involved in the cell development process and hormone pathways.OsARF12-overexpressing plants and cdkf;2 mutants exhibited enhanced and reduced sensitivity to exogenous auxin and brassinosteroid(BR)treatment,confirming that targeting of OsCDKF;2 by OsARF12 mediates auxin and BR signaling.Our results reveal that the miR167-OsARF12 module works downstream of miR159 to regulate rice grain filling and grain size via OsCDKF;2 by controlling cell division and mediating auxin and BR signals. | Yafan Zhao Xiaofan Zhang Yuan Cheng Xiangxiang Du Sachin Teotia Chunbo Miao Huwei Sun Guoqiang Fan Guiliang Tang Hongwei Xue Quanzhi Zhao Ting Peng | 2023 | Plant Communications2023，4，5： | 1 |
| 19 | Nitrogen-doped Carbon Coated Na3V2(PO4)3 with Superior Sodium Storage Capability显示文摘Cathodes with high cycling stability and rate capability are required for ambient temperature sodium ion batteries in renewable energy storage application.Na3V2(PO4)3 is an attractive cathode material with excellent electrochemical stability and fast ion diffusion coefficient within the 3D NASICON structure.Nevertheless,the practical application of Na3V2(PO4)3 is seriously hindered by its intrinsically poor electronic conductivity.Herein,solvent evaporation method is presented to obtain the nitrogen-doped carbon coated Na3V2(PO4)3 cathode material,delivering cnhanced clectrochemical performances.N-Doped carbon layer coating servfes as a highly conducting pathway,and creates numerous extrinsic defects and active sites,which can facilitate the storage and diffusion of Na^+.Morcover,the N-doped carbon layer can provide a stable framework to accommodate the agglomeration of the electrode upon electrode cycling.N-Doped carbon coated Na3V2(PO4)3(NC-NVP)exhibits excellent long cycling life and superior rate performances than bare Na3V2(PO4)3 without carbon coating.NC-NVP delivers a stable capacity of 95.9mA·h/g after 500 cycles at 1C rate,which corresponds to high capacity retention(94.6%)with respect to the initial capacity(101.4mA·h/g).Over 91.3% of the initial capacity is retained after 500 cycles at 5C,and the capacity can reach 85mA·h/g at 30C rate. | XU Laiqiang LI Jiayang LI Yitong CAI Peng LIU Cheng ZOU Guoqiang HOU Hongshuai HUANG Lanping JI Xiaobo | 2020 | Chemical Research in Chinese Universities2020，36，3： | 1 |
| 20 | Revealing dual capacitive mechanism of carbon cathode toward ultrafast quasi-solid-state lithium ion capacitors显示文摘High-performance lithium ion capacitors(LICs) have been seriously hindered by the very low capacity and unclear capacitive mechanism of carbon cathode.Herein,after the combination of experimental results and theoretical calculations,it is found that the critical pore size of 0.8 nm for PF_6~-ion adsorption decreases strong interactive repulsion of electrons and largely reduces adsorption energy barrier,which greatly improves the charge accommodation capacity in electrical double-layer behavior.Most importantly,the chemical-bond evolution process of C=O group has been firstly revealed by X-ray photoelectron spectroscopy(XPS),indicating that the introduction of C=O group can provide abundant redox active sites for PF_6~-ion adsorption accompanied with enhanced pseudocapacitive capacity.Attributed to the synergistic effect of dual capacitive mechanism,porous carbon sheet(PCS) cathode shows a reversible specific capacity of 53.6 mAh g^(-1) even at a high current density of 50 A g^(-1).Significantly,the quasisolid-state LIC manifests state-of-the-art electrochemical performances with an integrated maximum energy density of 163 Wh kg^(-1) and an outstanding power density of 15,000 W kg^(-1).This elaborate work promotes better fundamental understanding about capacitive mechanism of PF_6~-ion and offers a rational dual-capacitive strategy for the design of advanced carbon cathodes. | Kangyu Zou Peng Cai Xinglan Deng Baowei Wang Cheng Liu Jiayang Li Hongshuai Hou Guoqiang Zou Xiaobo Ji | 2021 | Journal of Energy Chemistry2021，30，9： | 1 |
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