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12篇 您的检索式:作者名="DENG RuiPing"
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1Visible light-induced N-doped TiO_2 nanoparticles for the degradation of microcystin-LR显示文摘N-doped nano-crystalline TiO2 powders have been synthesized by the sol-gel method.The shape and crystal structure of the resulting N-doped TiO2 were investigated by X-ray Photoelectron Spectroscopy (XPS),X-ray spectroscopy (XRD),Transmission Electron Microscopy (TEM) and UV-vis reflection spectrum.The results showed that doping TiO2 with nitrogen can lower its band gap and apparently shift its optical response to the visible region.Under the visible light (λ> 420 nm) irradiation,the MC-LR was degraded by the synthesized N-TiO2 nano-material.The variation of MC-LR amount and its intermediates were detected by high performance liquid chromatography (HPLC) and LC-MS,respectively.The mineralization of MC-LR was determined by total organic carbon (TOC) analysis.Simultaneously,transient oxidative species generated during photocatalysis were tracked by electron spin resonance (ESR) and Peroxidase method.All these results indicated that visible-light excited N-TiO2 can activate molecular oxygen and thereby achieve degradation of MC-LR completely within 14 h.The removal of 59% of TOC was achieved after 20 h irradiation.The major oxidative species in the system were hydroxyl radical (·OH) and H2O2.13 Kinds of intermediates were primarily identified in the process.Based on these results,a reasonable conclusion was drawn for the degradation of MC-LR wherein its four positions are easy to be attacked by the photo-generated OH radical followed by the hydrolyzation of peptides.YANG Jing,CHEN DengXia,DENG AnPing,FANG YanFen,LUO GuangFu,LI DeJiang,LI RuiPing & HUANG YingPing Alan G.MacDiarmid Research Institute of Renewable Energy,China Three Gorges University,Yichang 443000,China 2010Science China Chemistry2010,53,8:12
2Reinforced polysulfide barrier by g-C_(3)N_(4)/CNT composite towards superior lithium-sulfur batteries显示文摘The notorious shuttle effect has long been obstructing lithium-sulfur(Li-S) batteries from yielding the expected high energy density and long lifespan.Herein,we develop a multifunctional polysulfide barrier reinforced by the graphitic carbon nitride/carbon nanotube(g-C_3 N_4/CNT) composite toward inhibited shuttling behavior and improved battery performance.The obtained g-C_3 N_4 delivers a unique spongelike architecture with massive ion transfer pathways and fully exposed active interfaces,while the abundant C-N heteroatomic structures impose strong chemical immobilization toward lithium polysulfides.Combined with the highly conductive agent,the g-C_3 N_4/CNT reinforced separator is endowed with great capability of confining and reutilizing the active sulfur within the cathode,thus contributing to an efficient and stable sulfur electrochemistry.Benefiting from these synergistic attributes,Li-S cells based on g-C_3 N_4/CNT separator exhibit an excellent cyclability with a minimum decay rate of 0.03% per cycle over 500 cycles and decent rate capability up to 2 C.Moreover,a high areal capacity of 7.69 mAh cm^(-2)can be achieved under a raised sulfur loading up to 10.1 mg cm^(-2).demonstrating a facile and efficient pathway toward superior Li-S batteries.Xiangliang Wang Gaoran Li Minjie Li Ruiping Liu Haibo Li Tengyu Li Mingzhu Sun Yirui Deng Ming Feng Zhongwei Chen 2021Journal of Energy Chemistry2021,30,2:4
3Oral microbiome and risk of malignant esophageal lesions in a high-risk area of China:A nested case-control study显示文摘Objective:We aimed to prospectively evaluate the association of oral microbiome with malignant esophageal lesions and its predictive potential as a biomarker of risk.Methods:We conducted a case-control study nested within a population-based cohort with up to 8 visits of oral swab collection for each subject over an 11-year period in a high-risk area for esophageal cancer in China.The oral microbiome was evaluated with 16 S ribosomal RNA(rRNA)gene sequencing in 428 pre-diagnostic oral specimens from 84 cases with esophageal lesions of severe squamous dysplasia and above(SDA)and 168 matched healthy controls.DESeq analysis was performed to identify taxa of differential abundance.Differential oral species together with subject characteristics were evaluated for their potential in predicting SDA risk by constructing conditional logistic regression models.Results:A total of 125 taxa including 37 named species showed significantly different abundance between SDA cases and controls(all P<0.05&false discovery rate-adjusted Q<0.10).A multivariate logistic model including 11 SDA lesion-related species and family history of esophageal cancer provided an area under the receiver operating characteristic curve(AUC)of 0.89(95%CI,0.84-0.93).Cross-validation and sensitivity analysis,excluding cases diagnosed within 1 year of collection of the baseline specimen and their matched controls,or restriction to screenendoscopic-detected or clinically diagnosed case-control triads,or using only bacterial data measured at the baseline,yielded AUCs>0.84.Conclusions:The oral microbiome may play an etiological and predictive role in esophageal cancer,and it holds promise as a non-invasive early warning biomarker for risk stratification for esophageal cancer screening programs.Fangfang Liu Mengfei Liu Ying Liu Chuanhai Guo Yunlai Zhou Fenglei Li Ruiping Xu Zhen Liu Qiuju Deng Xiang Li Chaoting Zhang Yaqi Pan Tao Ning Xiao Dong Zhe Hu Huanyu Bao Hong Cai Isabel Dos Santos Silva Zhonghu He Yang Ke 2020Chinese Journal of Cancer Research2020,32,6:3
4Carbon-based flexible self-supporting cathode for lithium-sulfur batteries:Progress and perspective显示文摘The flexible self-supporting electrode can maintain good mechanical and electrical properties while retaining high specific capacity,which meets the requirements of flexible batteries.Lithium-sulfur batteries(LSBs),as a new generation of energy storage system,hold much higher theoretical energy density than traditional batteries,and they have attracted extensive attention from both the academic and industrial communities.Selection of a proper substrate material is important for the flexible self-supporting electrode.Carbon materials,with the advantages of light weight,high conductivity,strong structural plasticity,and low cost,provide the electrode with a large loading space for the active material and a conductive network.This makes the carbon materials meet the mechanical and electrochemical requirements of flexible electrodes.In this paper,the commonly used fabrication methods and recent research progresses of the flexible self-supporting cathode with a carbon material as the substrate are introduced.Various sulfur loading methods are summarized,which provides useful information for the structural design of the cathode.As the first review article of the carbon-based flexible self-supporting LSB cathodes,it provides valuable guidance for the researchers working in the field of LSB.Qinghuiqiang Xiao Jinlin Yang Xiaodong Wang Yirui Deng Peng Han Ning Yuan Lei Zhang Ming Feng Chang‐an Wang Ruiping Liu 2021Carbon Energy2021,3,2:3
5Hollow nanoparticles synthesized via Ostwald ripening and their upconversion luminescence-mediated Boltzmann thermometry over a wide temperature range显示文摘Upconversion nanoparticles(UCNPs)with hollow structures exhibit many fascinating optical properties due to their special morphology.However,there are few reports on the exploration of hollow UCNPs and their optical applications,mainly because of the difficulty in constructing hollow structures by conventional methods.Here,we report a one-step template-free method to synthesize NaBiF4:Yb,Er(NBFYE)hollow UCNPs via Ostwald ripening under solvothermal conditions.Moreover,we also elucidate the possible formation mechanism of hollow nanoparticles(HNPs)by studying the growth process of nanoparticles in detail.By changing the contents of polyacrylic acid and H2O in the reaction system,the central cavity size of NBFYE nanoparticles can be adjusted.Benefiting from the structural characteristics of large internal surface area and high surface permeability,NBFYE HNPs exhibit excellent luminescence properties under 980 nm near-infrared irradiation.Importantly,NBFYE hollow UCNPs can act as self-referenced ratiometric luminescent thermometers under 980 nm laser irradiation,which are effective over a wide temperature range from 223 K to 548 K and have a maximum sensitivity value of 0.0065 K^(−1)at 514 K.Our work clearly demonstrates a novel method for synthesizing HNPs and develops their applications,which provides a new idea for constructing hollow structure UCNPs and will also encourage researchers to further explore the optical applications of hollow UCNPs.Ran An Yuan Liang Ruiping Deng Pengpeng Lei Hongjie Zhang 2022Light(Science & Applications)2022,11,8:3
6Calixarene-supported hexadysprosium cluster showing single molecule magnet behavior显示文摘The syntheses, crystal structures, magnetic and luminescent properties of three isomorphous compounds [Ln III 6 (μ 4-O) 2 (C4A) 2-(NO 3 ) 2 (HCOO) 2 (CH 3 O) 2 (DMF) 4 (CH 3 OH) 4 ] (Ln = Gd (1), Tb (2) and Dy (3); H 4 C4A = p-tert-butylcalix[4]arene) are reported. These three compounds are featured with the sandwich-like units constructed by two tail-to-tail calixarene molecules and an in-between Ln III 6 octahedron. The Dy III compound exhibits both single molecule magnet behavior and photoluminescence.BI YanFeng XU GuanCheng LIAO WuPing DU ShangChao DENG RuiPing WANG BingWu 2012Science China Chemistry2012,55,6:1
7Optimized CeO_(2) Nanowires with Rich Surface Oxygen Vacancies Enable Fast Li-Ion Conduction in Composite Polymer Electrolytes显示文摘Low-cost and flexible solid polymer electrolytes are promising in all-solid-state Li-metal batteries with high energy density and safety.However,both the low room-temperature ionic conductivities and the small Li^(+)transference number of these electrolytes significantly increase the internal resistance and overpotential of the battery.Here,we introduce Gd-doped CeO_(2) nanowires with large surface area and rich surface oxygen vacancies to the polymer electrolyte to increase the interaction between Gd-doped CeO_(2) nanowires and polymer electrolytes,which promotes the Li-salt dissociation and increases the concentration of mobile Li ions in the composite polymer electrolytes.The optimized composite polymer electrolyte has a high Li-ion conductivity of 5×10^(-4)4 S cm^(-1) at 30℃ and a large Li+transference number of 0.47.Moreover,the composite polymer electrolytes have excellent compatibility with the metallic lithium anode and high-voltage LiNi_(0.8)Mn _(0.1)Co_(0.1)O_(2)(NMC)cathode,providing the stable cycling of all-solid-state batteries at high current densities.Lu Gao Nan Wu Nanping Deng Zhenchao Li Jianxin Li Yong Che Bowen Cheng Weimin Kang Ruiping Liu Yutao Li 2023Energy & Environmental Materials2023,6,1:1
8Structural and Morphological Modulation of BiOCl Visible-light Photocatalyst Prepared via an In situ Oxidation Synthesis显示文摘WANG Jianmin CAO Feng DENG Ruiping HUANG Lijian LI Song CAI Jiajia LU Xin QIN Gaowu 2016Chemical Research in Chinese Universities2016,32,3:1
9Effective treatment of SARS-CoV-2-infected rhesus macaques by attenuating inflammation显示文摘Dear Editor,The COVID-19 pandemic caused by the SARS-CoV-2 virus has caused a significant public health crisis worldwide.Recent studies show that excessive inflammatory response is critical for SARS-CoV-2 pathogenesis and COVID-19 severity,'which can lead to acute lung injury(ALI)and acute respiratory distress syndrome(ARDS).2 One major factor for acute inflammation in SARS-CoV-2 infection is the inflammatory macrophages,which has been considered important for the production of large amounts of proinflammatory cytokines.'Autopsy identifhed an intense infltra-tion of macrophages in the lung tissues of fatal COVID-19 patients.Shuaiyao Lu Jingjing Zhao Jiebin Dong Hongqi Liu Yinhua Zhu Honggang Li Liping Liu Yun Yang Shicheng Sun Yifan Song Yuan Zhao Ruiping She Tuoping Luo Hongkui Deng Xiaozhong Peng 2021Cell Research2021,31,2:1
10Surface engineering for high stable lithium-rich manganese-based cathode materials显示文摘Lithium-rich manganese-based material shows great potential as the high specific cathode materials due to its low cost,environmental friendliness,high operating voltage and simple preparation process.However,the poor capacity retention and cycling performance caused by its unstable structure during cycling restrict the commercialization.In this work,Li_(1.2)Ni_(0.16)Mn_(0.56)Co_(0.08)O_(2)was synthesized utilizing a Coprecipitation method and different amount of La(PO_(3))_(3)(La(PO_(3))_(3)=2 wt%,4 wt%and 6 wt%)was selected as the coating layer to resolve the above issues.During the calcination process,La(PO_(3))_(3)reacts with impurities such as Li OH and Li_(2)CO_(3)on the lithium-rich surface to reduce the residual lithium on the surface,thus improving the interfacial stability,slowing down the corrosion of the electrolyte,and finally enhancing its electrochemical performance.The cathode materials coated with 4%of La(PO_(3))_(3)showed the best electrochemical performance in terms of capacity retention and cycling performance compared to the pristine NCM.The high initial discharge capacity of 214.21 m Ah/g and capacity retention of 94.2%after 100 cycles at 0.1 C can be obtained.This work provides an effective strategy to protect the cathode from corrosion and will promote its further practical applications in high specific Li-ion batteries.Miaomiao Zhou Jianjun Zhao Xiaodong Wang Ji Shen Wenhao Tang Yirui Deng Ruiping Liu 2023Chinese Chemical Letters2023,34,6:1
11Characterization of diamond MWCNTs composite fiber synthesized under high pressure and high temperature显示文摘A regrown composite fiber was synthesized during the sintering of diamond under high pressure 5.8 GPa and high temperature 1500℃for 1 min,using 3wt%MWCNTs as additive.SEM observation of the fiber after alkali and acid treatment revealed that the outer layer of the fiber is composed of nano-polycrystalline diamond.EDS,XPS,XRD and Raman spectrum analysis further identified that the fiber is composed of MWCNTs in the inner part and nano-polycrystalline diamond in the out layer.It is proposed that the untransformed MWCNTs may act as a template for the regrown outer layer of nano diamond fiber under high pressure and high temperature.Deng Fuming~(1,2) Lu Xuejun~(1,3) Liu Ruiping~1 Xu Guojun~3 Chen Quwu~1 Li Wenzhu~2 (1.Department of Materials Science and Engineering,China University of Mining and Technology,Beijing Campus,Beijing 100083,China) (2.Department of Physics,Zhejiang University,Hangzhou 310027,China) (3.Beijing Institute of Electro-machining,Beijing 100083,China) 2008金刚石与磨料磨具工程2008,28,S1:1
12Microstructure and properties of the sintered diamond reinforced by diamond-MWCNTs composite fibers显示文摘A new type of sintered diamond reinforced by diamond MWCNTs composite fibers which were randomly orientated and even distributed in the diamond matrix was synthesized by using 3wt%mullti-walled carbon nanotubes(MWCNTs) as starting additive under high pressure of 5.8 GPa at temperature of 1500℃for 1 min.A special polycrystalline diamond structure of direct bonding of both diamond to diamond and diamond to diamond-MWCNTs composite fiber was observed.The testing results show that it possesses not only high hardness(49~52 GPa) and Young’s modulus(878 GPa) but also high bending strength(1320~1540 GPa) and fracture toughness(9.0~9.2 MPa·m1/2) as it was theoretically predicted.The high performances of the composite were contributed by the fiber strengthening effect and the special structure which can offer more extensive diamond to diamond bonding.Deng Fuming~(1,2) Lu Xuejun~(1,3) Liu Ruiping~1 Xu Guojun~3 Chen Quwu~1 Li Wenzhu~2 (1.Department of Materials Science and Engineering,China University of Mining and Technology,Beijing Campus,Beijing,100083,China) (2.Department of Physics,Zhejiang University,Hangzhou,310027,China) (3.Beijing Institute of Electro-machining,Beijing,100083,China) 2008金刚石与磨料磨具工程2008,28,S1:0
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