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Nano Research 2025年第1期18卷 164-172页

作者： Yuanlin Fu Xiaoting Yang Ya Yu Kang Zhou Xiaoyang Ye Aoxiang Zhang Xiaojiao Hou bingbing chen Fuqiang Fan Yuhang Li Yu Fu Department of Chemistry College of SciencesNortheastern UniversityShenyang 110819China Department of Physical Education Shen Yang Institute of Science and TechnologyShenyang 110167China Sungrow Power Supply Co. Ltd.Hefei 230088China

The electrochemical nitrate reduction reaction(eNO_(3)^(-)RR)is considered an effective approach for converting nitrate-containing wastewater to *** adsorption and activation of NO_(3)^(-)is the critical step for many materials and the high energy barrier inhibits the continuation of the reduction *** Co nanoparticles encapsulated in the carbon layer we prepared spontaneously react with NO_(3)^(-)and the resulting Co^(2+)is then reduced by electroreduction to Co^(0),which circulates *** resulted in overcoming the energy input required for NO_(3)^(-)adsorption and conversion,thereby increasing the catalytic *** the same time,the morphology of the catalyst reconstructed from a dodecahedron to an interwoven nanosheet structure and the increased surface area also gives it better *** obtained Co(OH)_(2)@Co-N-C has an excellent eNO_(3)^(-)RR of 2774.7μg·h^(-1)·cm^(-2)with a Faraday efficiency of 81.4%in neutral *** the same time,the material-modified electrode can run stably for more than 100 *** work provides a new idea for the design of Co-based catalysts for eNO_(3)^(-)RR.

关键词： electrochemical nitrate reduction reaction Co-based catalyst dynamic evolution of Co species morphological reconstruction

Potential Effects of Episodic Deposition on Nutrients and Heavy Metals in Decomposing Litters of Suaeda glauca in Salt Marsh of the Yellow River Estuary, China

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Chinese Geographical Science 2020年第3期30卷 466-482页

作者： chen bingbing SUN Zhigao Key Laboratory of Humid Subtropical Eco-geographical Process(Fujian Normal University) Ministry of EducationFuzhou 350007China Institute of Geography Fujian Normal UniversityFuzhou 350007China Fujian Provincial Key Laboratory for Subtropical Resources and Environment Fujian Normal UniversityFuzhou 350007China

Episodic deposition has been recognized as a major factor affecting the decomposition rate of detrital material in salt marshes. In this paper, three one-off burial treatments, no burial treatment(0 cm, NBT), current burial treatment(10 cm, CBT) and strong burial treatment(20 cm, SBT), were designed in intertidal zone of the Yellow River Estuary to determine the potential influences of episodic deposition on nutrient(C, N) and heavy metal(Pb, Cr, Cu, Zn, Ni, Mn, Cd, V and Co) variations in decomposing litters of Suaeda glauca. Results showed that although various burial treatments showed no statistical difference in decomposition rate of S. glauca, the values generally followed the sequence of CBT(0.002 403/d) > SBT(0.002 195/d) > NBT(0.002 060/d). The nutrients and heavy metals in decomposing litters of the three burial treatments exhibited different variations except for N, Cu, Cr, Ni and Co. Except for Mn, no significant differences in C, N, Pb, Cr, Cu, Zn, Ni, V and Co concentrations occurred among the three treatments(P > 0.05). With increasing burial depth, Cr and Cd levels generally increased while Cu, Ni and Mn concentrations decreased. Although episodic deposition was generally favorable for C and N release from S. glauca, its influence on release was insignificant. In the three burial treatments, Pb, Cr, Zn, Ni, Mn, V and Co stocks in S. glauca generally evidenced the export of metals from litter to environment, and, with increasing burial depth, the export amounts increased greatly. The S. glauca were particular efficient in binding Cd and releasing Pb, Cr, Zn, Ni, Mn, V and Co, and, with increasing burial depth, stocks of Cu in decomposing litters generally shifted from release to accumulation. The experiment indicated that the potential eco-toxic risk of Pb, Cr, Zn, Ni, Mn, V and Co exposure would be serious as the strong burial episodes occurred in S. glauca marsh.

关键词： decomposition nutrient and metal episodic deposition Suaeda glauca Yellow River Estuary

Metal-organic Frameworks Derived Cobalt Encapsulated in Nitrogen-doped Porous Carbon Nanosheets for Oxygen Reduction Reaction and Rechargeable Zinc-air Batteries

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Journal of Wuhan University of Technology(Materials Science) 2022年第3期37卷 355-363页

作者： KANG Yonggang YANG Wenwu chen bingbing School of Mechanical and Electrical Engineering Northwestern Polytechnical UniversityXi’an 710000China Department of Energy Science and Engineering Nanjing Tech UniversityNanjing 210009China

Nitrogen(N)-doped carbon nanosheets(TCM-900)were prepared by pyrolyzing the cobalt metal organic framework(MOF)and acid *** TCM-900 showed outstanding ORR performance with half-potential of 0.805 *** density function theory(DFT)reveals the nitrogen activates the carbon atoms in the *** homemade ZAB with TCM-900 as ORR electrocatalyst exhibits high-power density of 45 mW·cm^(-2) and excellent long recharge cycling stability compared to Pt/C at 10 mA·cm^(-2).This work illustrates an attractive future of the rechargeable ZAB.

关键词： ORR theoretical calculation zinc-air batteries nitrogen-doped porous material metalorganic framework

Potential Impacts of Exogenous Nitrogen Enrichment on Distribution and Transfer of Nitrogen in Plant-Soil System of Suaeda salsa Marsh in the Yellow River Estuary, China

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Journal of Ocean University of China 2023年第1期22卷 258-270页

作者： HU Xingyun SUN Zhigao YU Linying chen bingbing Fujian Provincial Key Laboratory for Subtropical Resources and Environment Fujian Normal UniversityFuzhou 350007China Key Laboratory of Humid Subtropical Eco-Geographical Process(Fujian Normal University) Ministry of EducationFuzhou 350007China Institute of Geography Fujian Normal UniversityFuzhou 350007China

To determine the potential impacts of exogenous nitrogen(N)enrichment on distribution and transfer of N in Suaeda salsa marsh in the Yellow River Estuary,the variations of N in plant-soil system during the growing season were investigated by field N addition *** experiment included four treatments:NN(no N input treatment,0gNm^(−2) yr^(−1)),LN(low N input treatment,3.0 gNm^(−2) yr^(−1)),MN(medium N input treatment,6 gNm^(−2) yr^(−1))and HN(high N input treatment,12 gNm^(−2) yr^(−1)).Results showed that N additions generally increased the contents of total nitrogen(TN),ammonia nitrogen(NH_(4)^(+)-N)and nitrate nitrogen(NO_(3)^(−)-N)in different soil layers and the increasing trend was particularly evident in *** with the NN treatment,the average contents of TN in topsoil in the LN,MN and HN treatments during the growing season increased by 10.85%,30.14%and 43.98%,the mean contents of NH_(4)^(+)-N increased by 8.56%,6.96%and 14.34%,and the average contents of NO_(3)^(−)-N increased by 35.73%,45.99%and 46.66%,*** exogenous N import did not alter the temporal variation patterns of TN contents in organs,the N transfer and accumulation differed among tissues in different *** increasing N import,both the N stocks in soil and plant showed increasing trend and the values in N addition treatments increased by 9.43%–38.22%and 13.40%–62.20%,*** was worth noting that,compared with other treatments,the *** in the MN treatments was very likely to have special response to N enrichment since not only the period of peak growth was prolonged by about 20 days but also the maximum of TN content in leaves was advanced by approximately one *** paper found that,as N loading reached MN level in future,the growth rhythm of *** and the accumulation and transference of N in its tissues would be altered significantly,which might generate great impact on the stability and health of *** marsh ecosystem.

关键词： nitrogen import nitrogen transfer plant-soil system Suaeda salsa Yellow River Estuary

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Electro-chemo-mechanical analysis of the effect of bending deformation on the interface of flexible solid-state battery

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Applied Mathematics and Mechanics(English Edition) 2023年第2期44卷 189-206页

作者： Yutao SHI chengjun XU bingbing chen Jianqiu ZHOU Rui CAI School of Mechanical and Power Engineering Nanjing Tech UniversityNanjing 210000China School of Energy Science and Engineering Nanjing Tech UniversityNanjing 210000China State Key Laboratory of Materials-Oriented Chemical Engineering Nanjing Tech UniversityNanjing 210009China

Flexible solid-state battery has several unique characteristics including high flexibility,easy portability,and high safety,which may have broad application prospects in new technology products such as rollup displays,power implantable medical devices,and wearable *** interfacial mechanical and electrochemical problems caused by bending deformation,resulting in the battery damage and failure,are particularly ***,a fully coupled electro-chemo-mechanical model is developed based on the actual solid-state battery ***-dependent material parameters,stress-dependent diffusion,and potential shift are *** to four bending forms(k=8/mm,0/mm,-8/mm,and free),the results show that the negative curvature bending is beneficial to reducing the plastic strain during charging/discharging,while the positive curvature is ***,with respect to the electrochemical performance,the negative curvature bending creates a negative potential shift,which causes the battery to reach the cut-off voltage earlier and results in capacity *** results enlighten us that suitable electrode materials and charging strategy can be tailored to reduce plastic deformation and improve battery capacity for different forms of battery bending.

关键词： solid-state battery electro-chemo-mechanical coupling model bending deformation phase-transformation plastic deformation

Computer vision meets microfluidics: a label-free method for high-throughput cell analysis

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Microsystems & Nanoengineering 2023年第5期9卷 1-15页

作者： Shizheng Zhou bingbing chen Edgar S.Fu Hong Yan State Key Laboratory of Marine Resource Utilization in South China Sea Hainan UniversityHaikou 570228China Graduate School of Computing and Information Science University of PittsburghPittsburghPA 15260USA

In this paper,we review the integration of microfluidic chips and computer vision,which has great potential to advance research in the life sciences and biology,particularly in the analysis of cell imaging *** chips enable the generation of large amounts of visual data at the single-cell level,while computer vision techniques can rapidly process and analyze these data to extract valuable information about cellular health and *** of the key advantages of this integrative approach is that it allows for noninvasive and low-damage cellular characterization,which is important for studying delicate or fragile microbial *** use of microfluidic chips provides a highly controlled environment for cell growth and manipulation,minimizes experimental variability and improves the accuracy of data *** vision can be used to recognize and analyze target species within heterogeneous microbial populations,which is important for understanding the physiological status of cells in complex biological *** hardware and artificial intelligence algorithms continue to improve,computer vision is expected to become an increasingly powerful tool for in situ cell *** use of microelectromechanical devices in combination with microfluidic chips and computer vision could enable the development of label-free,automatic,lowcost,and fast cellular information recognition and the high-throughput analysis of cellular responses to different compounds,for broad applications in fields such as drug discovery,diagnostics,and personalized medicine.

关键词： fluid analysis enable

A Weighted Combination Forecasting Model for Power Load Based on Forecasting Model Selection and Fuzzy Scale Joint Evaluation

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Energy Engineering 2021年第5期118卷 1499-1514页

作者： bingbing chen Zhengyi Zhu Xuyan Wang Can Zhang State Grid Nanjing Power Supply Company Nanjing210019China

To solve the medium and long term power load forecasting problem,the combination forecasting method is further expanded and a weighted combination forecasting model for power load is put *** model is divided into two stages which are forecasting model selection and weighted combination *** on Markov chain conversion and cloud model,the forecasting model selection is implanted and several outstanding models are selected for the combination *** the weighted combination forecasting,a fuzzy scale joint evaluation method is proposed to determine the weight of selected forecasting *** percentage error and mean absolute percentage error of weighted combination forecasting result of the power consumption in a certain area of China are 0.7439%and 0.3198%,respectively,while the maximum values of these two indexes of single forecasting models are 5.2278%and 1.9497%.It shows that the forecasting indexes of proposed model are improved significantly compared with the single forecasting models.

关键词： Power load forecasting forecasting model selection fuzzy scale joint evaluation weighted combination forecasting

Photodegradation of N-nitrosodiethylamine in water with UV irradiation

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Chinese Science Bulletin 2008年第21期53卷 3395-3401页

作者： XU bingbing chen ZhongLin QI Fei YANG Lei State Key Laboratory of Urban Water Resource and Environment School of Municipal & Environmental Engineering Harbin Institute of Technology Harbin 150090 China

The direct photolysis of N-nitrosodiethylamine(NDEA) in water with ultraviolet(UV) irradiation was *** showed that NDEA could be completely degraded under the direct UV *** effects of the experimental conditions,including the initial concentration of NDEA,humic acid and solution pH,were *** degradation products of NDEA were identified and quantified with gas chromatography-mass spectrometry(GC-MS) and high performance liquid chromatography(HPLC).It was confirmed that methylamine(MA),dimethylamine(DMA),ethylamine(EA),diethylamine(DEA),NO2-and NO3-were the main degradation *** photolysis degradation mechanism of NDEA was also *** a result of N-N bond fission,NDEA was degraded by direct UV irradiation.

关键词： N-亚硝基二乙基苯胺照射时间二乙胺化学光线照射

Sn_(4)P_(3)nanoparticles confined in multilayer graphene sheets as a high-performance anode material for potassium-ion batteries

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Journal of Energy Chemistry 2022年第3期31卷 413-421,I0011页

作者： Yichen Du Zuyue Yi bingbing chen Jingyi Xu Zhuangzhuang Zhang Jianchun Bao Xiaosi Zhou Jiangsu Key Laboratory of New Power Batteries Jiangsu Collaborative Innovation Center of Biomedical Functional MaterialsSchool of Chemistry and Materials ScienceNanjing Normal UniversityNanjing 210023JiangsuChina

Phosphorus-based anodes are highly promising for potassium-ion batteries(PIBs)because of their large theoretical ***,the inferior potassium storage properties caused by the poor electronic conductivity,easy self-aggregation,and huge volumetric changes upon cycling process restrain their practical *** we impregnate Sn_(4)P_(3)nanoparticles within multilayer graphene sheets(Sn_(4)P_(3)/MGS)as the anode material for PIBs,greatly improving its potassium storage ***,the graphene sheets can efficiently suppress the aggregation of Sn_(4)P_(3)nanoparticles,enhance the electronic conductivity,and sustain the structural *** addition,plenty of Sn_(4)P_(3)nanoparticles impregnated in MGS offer a large accessible area for the electrolyte,which decreases the diffusion distance for K^(+)and electrons upon K^(+)insertion/extraction,resulting in an improved rate ***,the optimized Sn_(4)P_(3)/MGS containing 80 wt%Sn_(4)P_(3)(Sn_(4)P_(3)/MGS-80)exhibits a high reversible capacity of 378.2 and 260.2 m Ah g;at 0.1 and 1 A g^(-1),respectively,and still delivers a large capacity retention of 76.6%after the 1000th cycle at 0.5 A g^(-1).

关键词： Sn4P3 Multilayer graphene sheets Ball milling Potassium-ion batteries Anode

Highly active sites of low spin Fe^(Ⅱ)N_(4)species:The identification and the ORR performance

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Nano Research 2021年第1期14卷 122-130页

作者： Huizhu Cai bingbing chen Xiao Zhang Yuchen Deng Dequan Xiao Ding Ma Chuan Shi State Key Laboratory of Fine Chemicals College of Chemical EngineeringDalian University of TechnologyDalian 116024China College of Chemistry and Molecular Engineering and College of Engineering Peking UniversityBeijing 100871China Center for Integrative Materials Discovery Department of Chemistry and Chemical EngineeringUniversity of New HavenCT 06516USA

Over recent years,catalytic materials of Fe-N-C species have been recognized being active for oxygen reduction reaction(ORR).However,the identification of active site remains challenging as it generally involves a pyrolysis process and mixed components being *** Fe_(3)C/C and Fe_(2)N/C samples were synthesized by temperature programmed reduction of Fe precursors in 15%CH_(4)/H_(2)and pure NH_(3),*** acid leaching of Fe_(2)N/C sample,only single sites of FeN_(4)species were presented,providing an ideal model for identification of catalytic functions of the single sites of FeN_(4)in ORR.A correlation was conducted between the concentration of Fe^(Ⅱ)N_(4)in low spin state by Mossbauer spectra and the kinetic current density at 0.8 V in alkaline media,and such a structure-performance correlation assures the catalytic roles of low spin Fe^(Ⅱ)N_(4) species as highly active sites for the ORR.

关键词： single sites of FeN_(4) oxygen reduction reaction structure-performance correlation electrocatalysis