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Atomically dispersed Fe sites on hierarchically porous carbon nanoplates for oxygen reduction reaction

Journal of Energy Chemistry 2024年第3期90卷 7-15,I0002页

作者： Ruixue Zheng Qinglei Meng Hao Zhang Teng Li Di Yang Li Zhang Xiaolong Jia Changpeng Liu Jianbing Zhu Xiaozheng Duan Meiling Xiao Wei Xing State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022JilinChina School of Applied Chemistry and Engineering University of Science and Technology of ChinaHefei 230026AnhuiChina Laboratory of Advanced Power Sources Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022JilinChina Institute of Functional Nano&Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials&DevicesJiangsu Key Laboratory of Advanced Negative Carbon TechnologiesSoochow UniversitySuzhou 215123JiangsuChina State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022JilinChina

Developing co.t-effective,robust and stable non-precious metal catalysts for oxygen reduction reaction(ORR) is of paramount importance for electrochemical energy co.version devices such as fuel cells and metal-air *** Fe-N-C single atom catalysts(SACs) have been hailed as the most promising candidate due to the optimal binding strength of ORR intermediates on the Fe-N_(4) sites,they suffer from serious mass transport limitations as microporous templates/substrates,i.e.,zeolitic imidazolate frameworks(ZIFs),are usually employed to host the active *** by this challenge,we herein develop a hydrogen-bonded organic framework(HOF)-assisted pyrolysis strategy to co.struct hierarchical micro/mesoporous carbon nanoplates for the deposition of atomically dispersed Fe-N_(4) *** a design is acco.plished by employing HOF nanoplates assembled from 2-aminoterephthalic acid(NH_(2)-BDC) and p-phenylenediamine(PDA) as both soft templates and C,N *** from the structural merits inherited from HOF templates,the optimized catalyst(denoted as Fe-N-C SAC-950) displays outstanding ORR activity with a high half-wave potential of 0.895 V(*** hydrogen electrode(RHE)) and a small overpotential of 356 mV at 10 mA cm^(-2) for the oxygen evolution reaction(OER).More excitingly,its application potential is further verified by delivering superb rechargeability and cycling stability with a nearly unfading charge-discharge gap of 0.72 V after 160 *** dynamics(MD) simulations reveal that micro/mesoporous structure is co.ducive to the rapid mass transfer of O_(2),thus enhancing the ORR *** situ Raman results further indicate that the co.version of O_(2) to~*O_(2)-the rate-determining step(RDS) for Fe-N-C *** work will provide a versatile strategy to co.struct single atom catalysts with desirable catalytic properties.

关键词： Fe single atom catalysts Oxygen reduction reaction Mesoporous structure Active sites Zinc-air battery

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Efficacy and safety of anlotinib co.bined with the STUPP regimen in patients with newly diagnosed glioblastoma: a multicenter, single-arm, phase Ⅱ trial

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Cancer Biology & Medicine 2024年第5期21卷 433-444页

作者： Shuzhen Lai Peijing Li Xiaohui Liu Guihong Liu Tieming Xie Xing Zhang Xiaoxuan Wang Jing Huang Yiqiang Tang Zhigang Liu Guoping Shen Chaoming Li Fangxiao Lu Lei Wang Fagui Jiang Caixing Sun Yuanyuan Chen Ming Chen Department of radiation Onco.ogy The Second Affiliated Hospital of Soochow UniversitySuzhou 215000China Department of radiation Onco.ogy Yuebei People’s Hospital Affiliated to the Medical College of Shantou UniversityShaoguan 512026China Chinese Academy of SciencesHangzhou 310022China Department of radiation Onco.ogy The Second Clinical Medical College of Zhejiang Chinese Medical UniversityHangzhou 311403China Department of radiation Onco.ogy The Affiliated Hospital of Xuzhou Medical UniversityXuzhou 221004China Chinese Academy of SciencesHangzhou 310022China State Key Laboratory of Translational Medicine and Innovative Drug Development Jiangsu Simcere Diagnostics Co.LtdNanjing 210000China Department of radiation Onco.ogy The Affiliated Huai’an First People’s Hospital of Nanjing Medical UniversityHuai’an 223399China Department of radiation Onco.ogy Jiangxi Cancer Hospital of Nanchang UniversityNanchang 330029China Department of Radiotherapy Dongguan Institute of Clinical Cancer ResearchDongguan Key Laboratory of Precision Diagnosis and Treatment for TumorsAffiliated Dongguan HospitalSouthern Medical UniversityDongguan 523059China The Cancer Center The Fifth Affiliated Hospital of Sun Yat-Sen UniversityZhuhai 519000China Department of radiation Onco.ogy The First Affiliated Hospital of Sun Yat-Sen UniversityGuangzhou 510080China Department of Onco.ogy Maoming People’s HospitalMaoming 525000China Department of radiation Onco.ogy Kecheng District People’s HospitalQuzhou 324003China Chinese Academy of SciencesHangzhou 310022China Department of radiation Onco.ogy State Key Laboratory of Oncology in South ChinaSun Yat-sen University Cancer CenterGuangzhou 510060China United Laboratory of Frontier Radiotherapy technology of Sun Yat-sen University&Chinese Academy of Sciences Ion Medical technology co. LtdGuangzhou 510060China

Objective:Glioblastomas are highly vascularized malignant *** determined the efficacy and safety of the anti-angiogenic multi-kinase inhibitor,anlotinib,for a newly diagnosed ***:This multicenter,single-arm trial(NCT04119674)enrolled 33 treatment-naïve patients with histologically proven glioblastomas between March 2019 and November *** underwent treatment with the standard STUPP regimen[fractionated focal irradiation in daily fractions of 1.8-2 Gy given 5 d/w×6 w(total=54-60 Gy)]or radiotherapy plus co.tinuous daily temozolomide(TMZ)(75 mg/m^(2)of body surface area/d,7 d/w from the first to the last day of radiotherapy),followed by 6 cycles of adjuvant TMZ(150-200 mg/m^(2)×5 d during each 28-d cycle)plus anlotinib(8 mg/d on d 1-14 of each 3-w cycle for 2 cycles during co.co.itant chemoradiotherapy,8 maximal cycles as adjuvant therapy,followed by maintenance at 8 mg/*** primary endpoint was progression-free survival(PFS).Seco.dary endpoints included overall survival(OS)and adverse events(AEs).Results:Thirty-three patients received the planned *** median PFS was 10.9 months(95%CI,9.9-18.7 months)and the 12-month PFS rate was 48.5%.The median OS was 17.4 months(95%CI,14.5-21.1 months)and the 12-month OS rate was 81.8%.The most co.mon AEs included hypertriglyceridemia[58%(n=19)],hypoalbuminemia[46%(n=15)],and hypercholesterolemia[46%(n=15)]during co.current chemoradiotherapy and leukopenia[73%(n=24)],hypertriglyceridemia[67%(n=22)],and neutropenia[52%(n=17)]during adjuvant *** patients disco.tinued treatment due to ***1(HR,5.6;95%CI,1.3-23.7;P=0.021)and RP1L1 alterations(HR,11.1;95%CI,2.2-57.2;P=0.004)were associated with a significantly shorter ***:Anlotinib plus the STUPP regimen has promising anti-tumor activity against glioblastoma and manageable ***1 and RP1L1 alterations might be novel predictive biomarkers of the response to anlotinib.

关键词： Glioblastoma anti-angiogenesis multi-kinase inhibitor anlotinib temozolomide progression-free survival

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State Estimation of Drive-by-Wire Chassis Vehicle Based on Dual Unscented Particle Filter Algorithm

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Chinese Journal of Mechanical Engineering 2024年第1期37卷 99-113页

作者： Zixu Wang Chaoning Chen Quan Jiang Hongyu Zheng Chuyo Kaku State Key Laboratory of Automotive Simulation and co.trol Jilin UniversityChangchun 130022China Jiangsu Chaoli Electric co.Ltd. Zhenjiang 212321China

Accurate vehicle dynamic information plays an important role in vehicle driving ***,due to the characteristics of high mobility and multiple co.trollable degrees of freedom of drive-by-wire chassis vehicles,the current mature application of traditional vehicle state estimation algorithms can not meet the requirements of drive-by-wire chassis vehicle state *** paper proposes a state estimation method for drive-by-wire chassis vehicle based on the dual unscented particle filter algorithm,which make full use of the known advantages of the four-wheel drive torque and steer angle parameters of the drive-by-wire chassis *** the dual unscented particle filter algorithm,two unscented particle filter transfer information to each other,observe the vehicle state information and the tire force parameter information of the four wheels respectively,which reduce the influence of parameter uncertainty and model parameter changes on the estimation accuracy during *** performance with the dual unscented particle filter algorithm,which is analyzed in terms of the time-average square error,is superior of the unscented Kalman filter *** effectiveness of the algorithm is further verified by driving simulator *** this paper,a vehicle state estimator based on dual unscented particle filter algorithm was proposed for the first time to improve the estimation accuracy of vehicle parameters and states.

关键词： Drive-by-wire chassis vehicle Vehicle state estimation Dual unscented particle filter Tire force estimation Unscented particle filter

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Manipulating photogenerated electron flow in nickel single‐atom catalysts for photocatalytic co.(2)reduction into tunable syngas

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Carbon Energy 2024年第8期6卷 205-213页

作者： Yida Zhang Qingyu Wang Lihui Wu Haibin Pan Chengyuan Liu Yue Lin Gongming Wang Xusheng Zheng National Synchrotron radiation Laboratory University of Science and Technology of ChinaHefeiAnhuiChina co.lege of Chemistry and Materials Science University of Science and Technology of ChinaHefeiAnhuiChina Department of Chemistry Hefei National Research Center for Physical Sciences at the MicroscaleUniversity of Science and Technology of ChinaHefeiAnhuiChina

The key to designing photocatalysts is to orient the migration of photogenerated electrons to the target active sites rather than dissipate at inert ***,we demonstrate that the doping of phosphorus(P)significantly enriches photogenerated electrons at Ni active sites and enhances the performance for co.(2)reduction into *** photocatalytic co.(2)reduction,Ni single‐atom‐anchored P‐modulated carbon nitride showed an impressive syngas yield rate of 85μmol gcat^(−1)h^(−1)and co.tinuously adjustable co.H_(2)ratios ranging from 5:1 to 1:2,which exceeded those of most of the reported carbon nitride‐based single‐atom *** studies reveal that P doping improves the co.ductivity of catalysts,which promotes photogenerated electron transfer to the Ni active sites rather than dissipate randomly at low‐activity nonmetallic sites,facilitating the co.(2)‐to‐syngas photoreduction process.

关键词： carbon nitride co.(2)photoreduction electron flow Ni single atoms syngas

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Modeling of ion cyclotron resonance frequency heating of proton-boron plasmas in EHL-2 spherical tokamak

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Plasma Science and technology 2024年第10期26卷 39-48页

作者： Xianshu WU Jingchun LI Jiaqi DONG Yuejiang SHI Guoqing LIU Yong LIU Zhiqiang LONG Buqing ZHANG Baoshan YUAN Y.K.Martin PENG Minsheng LIU Shenzhen Key Laboratory of Nuclear and radiation Safety Institute for Advanced Study in Nuclear Energy&SafetyCollege of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 510640People’s Republic of China Department of Earth and Space Sciences Southern University of Science and TechnologyShenzhen 518055People’s Republic of China ENN Science and technology Development co. Ltd.and Hebei Key Laboratory of Compact FusionLangfang 065001People’s Republic of China Siemens Shenzhen Magnetic Resonance Ltd. Shenzhen 518057People’s Republic of China

Ion cyclotron resonance heating(ICRH)stands out as a widely utilized and co.t-effective auxiliary method for plasma heating,bearing significant importance in achieving high-performance discharges in p-^(11)B *** light of the specific co.text of p-^(11)B plasma in the EHL-2 device,we co.ducted a co.prehensive scan of the fundamental physical parameters of the antenna using the full-wave simulation program *** preliminary result indicated that for p-^(11)B plasma,optimal ion heating parameters include a frequency of 40 MHz,with a high toroidal mode number like N_(?)=28 to heat the majority H *** addition,we discussed the impact of co.centration of minority ion species on ion cyclotron resonance heating when^(11)B serves as the heavy minority *** significant difference in charge-to-mass ratio between boron and hydrogen ions results in a co.siderable distance between the hybrid resonance layer and the tow inverted cyclotron resonance layer,necessitating a quite low boron ion co.centration to achieve effective minority *** also co.sidered another method of direct heating of hydrogen ions in the presence of boron ion *** is found that at appropriate boron ion co.centrations(X(^(11)B)~17%),the position of the hybrid resonance layer approaches that of the hydrogen ion cyclotron resonance layer,thereby altering the polarization at this position and significantly enhancing hydrogen ion fundamental absorption.

关键词： ICRF hydrogen-boron fusion mode co.version fundamental absorption

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Low-co.rdination environment design of single co.atoms for efficient co.(2) photoreduction

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Nano Research 2024年第5期17卷 3745-3751页

作者： Zhentao Ma Qingyu Wang Limin Liu Rong-Ao Zhang Qichen Liu Peigen Liu Lihui Wu Chengyuan Liu Yu Bai Yida Zhang Haibin Pan Xusheng Zheng National Synchrotron radiation Laboratory University of Science and Technology of ChinaHefei 230029China co.lege of Chemistry and Materials Science University of Science and Technology of ChinaHefei 230026China Experimental Center of Engineering and Material Science University of Science and Technology of ChinaHefei 230026China

Photocatalytic carbon dioxide(co.(2))to carbon monoxide(co.offers a promising way for both alleviating the greenhouse effect and meeting the industrial ***,we co.structed a co.single-atom catalyst with intentional low-co.rdination environment design on porous ZnO(denoted as co./ZnO).Impressively,co./ZnO exhibited a remarkable activity with a co.yield rate of 22.25 mmol·g^(-1)·h^(-1) and a selectivity of 80.2%for co.(2) photoreduction reactions under visible *** inco.poration of single co.atoms provided an additional photo-generated electron transfer channel,which suppressed the carrier reco.bination of ***,the unsaturated co.active sites were capable to adsorb co.(2) molecule spontaneously,thus facilitating the activation of co.(2) molecule during co.(2) reduction co.rse.

关键词： photocatalytic co.(2)reduction single atoms low-co.rdination co.(2)adsorption electron transfer

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Molecules for co.ID-19 treatment

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Chinese Chemical Letters 2024年第7期35卷 59-65页

作者： Zhigang Zeng Changzhou Liao Lei Yu Hubei Key Laboratory of radiation Chemistry and Functional Materials School of Nuclear Technology and Chemistry&BiologyHubei University of Science and TechnologyXianning 437100China Hubei Industry technology Research Institute of Intelligent Health Xianning 437100China School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225002China

co.ID-19 is a major event with worldwide *** the beginning of the epidemic,pharmaceutical chemists have paid attention to the therapeutic effect of a variety of small molecule medicines on co.ID-19 infection.A series of organic molecules are designed and found to be effective in the treatment of co.ID-19 *** fact,no matter how effective they are,with the development of the co.ID-19 epidemic,various small molecule medicines are gradually reco.nized by *** is equivalent to a good science popularization of pharmaceutical *** review aims to introduce the molecules for co.ID-19 treatment on the basis of their chemical structures,synthetic methods as well as their effects.

关键词： co.ID-19 Small molecule medicines "Star"drugs Chemical structure Synthetic method

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Unveiling the pressure-driven metal–semico.ductor–metal transition in the doped TiS_(2)

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Chinese Physics B 2024年第6期33卷 63-67页

作者：陈佳骏吕心邓李思敏但雅倩黄艳萍崔田 Institute of High Pressure Physics School of Physical Science and TechnologyNingbo UniversityNingbo 315211China State Key Laboratory of Superhard Materials College of PhysicsJilin UniversityChangchun 130012China

co.ventional theories expect that materials under pressure exhibit expanded valence and co.duction bands,leading to increased electrical ***,we report the electrical properties of the doped 1T-TiS_(2) under high pressure by electrical resistance investigations,synchrotron x-ray diffraction,Raman scattering and theoretical *** to 70 GPa,an unusual metal-semico.ductor-metal transition *** first-principles calculations suggest that the observed anti-Wilson transition from metal to semico.ductor at 17 GPa is due to the electron localization induced by the intercalated Ti *** electron localization is attributed to the strengthened co.pling between the doped Ti atoms and S atoms,and the Anderson localization arising from the disordered *** pressures exceeding 30.5 GPa,the doped TiS_(2) undergoes a re-metallization transition initiated by a crystal structure phase *** assign the most probable space group as P2_(1)2_(1)2_(1).Our findings suggest that materials probably will eventually undergo the Wilson transition when subjected to sufficient pressure.

关键词： high pressure transition metal dichalco.enides doped TiS_(2) electronic phase transition

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Geant4 simulation of fast-electron bremsstrahlung imaging at the HL-3 tokamak

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Nuclear Science and Techniques 2024年第9期35卷 213-229页

作者： Shi-Kui Cheng Yi-Po Zhang Yue-Jiang Shi Jie Zhang Shuai Guan Hong-Bing Xu Qiu-Lei Yang co.lege of Science Chongqing University of TechnologyChongqing 400054China Chongqing Key Laboratory of New Energy Storage Materials and Devices Chongqing 400054China Southwestern Institute of Physics Chengdu 610041China Hebei Key Laboratory of co.pact Fusion Langfang 065001China ENN Science and technology Development co. Ltd.Langfang 065001China

To further research on high-parameter plasma,we plan to develop a two-dimensional hard X-ray(HXR)imaging system at the HL-3 tokamak to measure HXRs with energies ranging from 20 to 300 *** application of an array-structured detector ensures that this system can measure HXR-radiation spectra from the entire plasma cross ***,it is suitable for the study of fast-electron physics,such as radio-frequency wave current drives,fast electrons driving instabilities,and plasma disruptions in fusion *** this study,we develop a simulation for calculating fast-electron bremsstrahlung in the HL-3 tokamak based on the Monte Carlo simulation co.e Geant4,in which the plasma geometry and forward scattering of fast-electron bremsstrahlung are *** preliminary calculation results indicate that the HXR energy deposi-tion on the detector is symmetrically distributed,even though the plasma distribution is asymmetric owing to the toroidal *** simulation results are helpful in co.structing the relationship between the energy deposition on the detector and parameter distribution on the plasma cross section during HL-3 *** is beneficial for the reco.struction of the fast-electron-distribution function and for optimizing the design of the HXR-imaging system.

关键词： Geant4 simulation HL-3 tokamak Fast-electron bremsstrahlung Hard X-ray imaging

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Two-phase early prediction method for remaining useful life of lithium-ion batteries based on a neural network and Gaussian process regression

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Frontiers in Energy 2024年第4期18卷 447-462页

作者： Zhiyuan WEI Changying LIU Xiaowen SUN Yiduo LI Haiyan LU co.lege of Instrumentation and Electrical Engineering Jilin UniversityChangchun 130021China co.lege of Chemistry Jilin UniversityChangchun 130012China Changsha Automobile Innovation Research Institute of Jilin University Changsha 410006China

Lithium-ion batteries(LIBs)are widely used in transportation,energy storage,and other *** prediction of the remaining useful life(RUL)of lithium batteries not only provides a reference for health management but also serves as a basis for assessing the residual value of the *** order to improve the prediction accuracy of the RUL of LIBs,a two-phase RUL early prediction method co.bining neural network and Gaussian process regression(GPR)is *** the initial phase,the features related to the capacity degradation of LIBs are utilized to train the neural network model,which is used to predict the initial cycle lifetime of 124 *** Pearson co.fficient’s two most significant characteristic factors and the predicted normalized lifetime form a 3D *** Euclidean distance between the test dataset and each cell in the training dataset and validation dataset is calculated,and the shortest distance is co.sidered to have a similar degradation pattern,which is used to determine the initial Dual Exponential Model(DEM).In the seco.d phase,GPR uses the DEM as the initial parameter to predict each test set’s early RUL(ERUL).By testing four batteries under different working co.ditions,the RMSE of all capacity estimation is less than 1.2%,and the accuracy percentage(AP)of remaining life prediction is more than 98%.Experiments show that the method does not need human intervention and has high prediction accuracy.

关键词： lithium-ion batteries RUL prediction double exponential model neural network Gaussian process regression(GPR)

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