https://ir.lib.ncu.edu.tw/handle/987654321/99688 Search the Channel s https://ir.lib.ncu.edu.tw/simple-search https://ir.lib.ncu.edu.tw/handle/987654321/100997 title: SiO2-coated LiNi0.915Co0.075Al0.01O2 cathode material for rechargeable Li-ion batteries abstract: 摘要： We reported a one-step dry coating of amorphous SiO 2 on spherical Ni-rich layered LiNi 0.915 Co 0.075 Al 0.01 O 2 (NCA) cathode materials. Combined characterization of XRD, EDS mapping, and TEM indicates that a SiO 2 layer with an average thickness of ∼50 nm was uniformly coated on the surface of NCA microspheres, without inducing any change of the phase structure and morphology. Electrochemical tests show that the 0.2 wt% SiO 2 -coated NCA material exhibits enhanced cyclability and rate properties, combining with better thermal stability compared with those of pristine NCA. For example, 0.2 wt% SiO 2 -coated NCA delivers a high specific capacity of 181.3 mA h g −1 with a capacity retention of 90.7% after 50 cycles at 1 C rate and 25 °C. Moreover, the capacity retention of this composite at 60 °C is 12.5% higher than that of pristine NCA at 1 C rate after 50 cycles. The effects of SiO 2 coating on the electrochemical performance of NCA are investigated by EIS, CV, and DSC tests, the improved performance is attributed to the surface coating layer of amorphous SiO 2 , which effectively suppresses side reactions between NCA and electrolytes, decreases the SEI layer resistance, and retards the growth of charge-transfer resistance, thus enhancing structural and cycling stability of NCA. A homogeneous SiO 2 layer is coated on the surface of NCA microspheres by a facile one-step dry coating method. Compared with pristine NCA, the SiO 2 coated NCA material shows better cyclic performance and thermal stability at an elevated temperature of 60 °C. 出版日期： 2016-11-24 識別號： ISSN: 2040-3364 識別號： EISSN: 2040-3372 識別號： DOI: 10.1039/c6nr07438c <br> Tue, 21 Apr 2026 06:20:34 GMT https://ir.lib.ncu.edu.tw/handle/987654321/100993 title: An overview of PCDD/F inventories and emission factors from stationary and mobile sources: What we know and what is missing abstract: 摘要： This overview attempts to outline what we currently know about the PCDD/F emission inventories and the source categories therein. Besides the best available control techniques, suggestions are offered on how to reduce the PCDD/F emission factors and emission quantity of some important PCDD/F emission sources. The PCDD/F combustion sources can be classified as either stationary or mobile or minimally/uncontrolled combustion sources. The major stationary sources of PCDD/Fs are metal production processes, waste incineration, heat and power plants, and fly ash treatment plant. Crematories, vehicles, residential boilers and stoves are of key concern due to their proximity to residential areas and their relatively lower lying stacks and exhaust gases, which may result in great impact to their surrounding environment. Moreover, we offered our perspectives on how to improve the quality and representative of the PCDD/F emission factors to attain PCDD/F inventories which correspond more to reality. These points of view include: (1) PCDD/F contributions during start-up procedures of MSWIs should be considered, (2) the sampling times of stack flue gases for EAFs and secondary metal smelters should correspond to whole smelting process stages, (3) longer flue gas sampling time should be executed for power plants, (4) direct exhaust samplings from tailpipes for mobile sources, (5) development of an open burn testing facility that can reflect the real open burning conditions, and (6) long-term sampling techniques like AMESA are suggested to used exclusively for the most contributed PCDD/F stationary sources. 其他題名： Aerosol Air Qual. Res 出版者： Cham: Springer International Publishing 出版日期： 2016-12-01 出處： Aerosol and air quality research, 2016-12, Vol.16 (12), p.2965-2988 版權： Taiwan Association for Aerosol Research 2016 識別號： ISSN: 1680-8584 識別號： ISSN: 2071-1409 識別號： EISSN: 2071-1409 識別號： DOI: 10.4209/aaqr.2016.10.0447 <br> Tue, 21 Apr 2026 06:20:29 GMT https://ir.lib.ncu.edu.tw/handle/987654321/100991 title: A numerical investigation of the convective systems in the vicinity of southern Taiwan associated with typhoon fanapi (2010): Formation mechanism of double rainfall peaks abstract: 摘要： The westbound Typhoon Fanapi (2010) brought 872 mm daily rainfall over the coastal plain in southern Taiwan, which is comparable to the extreme rainfall of 1080 mm over the southern Central Mountain Range (CMR). In this study, the Weather Research and Forecast model was used to investigate the formation mechanism of the two rainfall peaks and the associated dynamics of the convective systems in the vicinity of southern Taiwan. As the vortex that deflects somewhat southward near landfall moves over the CMR, the vortex slows down significantly during westward departure and induces strong near‐coastal convergence at lower levels with the westerly to southwesterly outer flow. The associated intense latent heating of the near‐coastal rainfall greatly contributes to positive potential vorticity (PV) with enhanced vorticity stretching near the convex eyewall when the vortex becomes more asymmetric and longitudinally elongated. The positive PV tendency near the coast is induced not only by vertical differential diabatic heating (DDH) but also by the longitudinal DDH mainly associated with positive vorticity tilting. The longitudinal DDH indeed dominates all other processes in the PV generation inside the eyewall further offshore, which is vital to the maintenance of the eyewall with the strong banded convergence and is special to typical intense cyclones over the open ocean. The formation of the double intense rainfall peaks cannot occur without a precise departing track near the southwest coast in association with the slowdown of the vortex core when the CMR height is significantly reduced or latent heating is deactivated after landfall. Key Points The latent heating of the near‐coastal rainfall greatly contributes to potential vorticity with enhanced stretching near the convex eyewall The longitudinal differential heating dominates other processes in the PV generation inside the eyewall further offshore The formation of double rainfall peaks cannot occur without a precise departing track associated with the slowdown of the vortex core 出版者： Washington: Blackwell Publishing Ltd 出版日期： 2016-11-16 出處： Journal of geophysical research. Atmospheres, 2016-11, Vol.121 (21), p.12,647-12,676 資源來源： Wiley Online Library - AutoHoldings Journals 版權： 2016. American Geophysical Union. All Rights Reserved. 識別號： ISSN: 2169-897X 識別號： EISSN: 2169-8996 識別號： DOI: 10.1002/2016JD025589 <br> Tue, 21 Apr 2026 06:20:24 GMT https://ir.lib.ncu.edu.tw/handle/987654321/100987 title: Ni-C-N Nanosheets as Catalyst for Hydrogen Evolution Reaction abstract: 摘要： We report a facile nitrogenation/exfoliation process to prepare hybrid Ni–C–N nanosheets. These nanosheets are <2 nm thin, chemically stable, and metallically conductive. They serve as a robust catalyst for the hydrogen evolution reaction in 0.5 M H2SO4, or 1.0 M KOH or 1.0 M PBS (pH = 7). For example, they catalyze the hydrogen evolution reaction in 0.5 M H2SO4 at an onset potential of 34.7 mV, an overpotential of 60.9 mV (at j = 10 mA cm–2) and with remarkable long-term stability (∼10% current drop after 70 h testing period). They are promising as a non-Pt catalyst for practical hydrogen evolution reaction. 其他題名： J. Am. Chem. Soc 出版者： United States: American Chemical Society 出版日期： 2016-11-09 出處： Journal of the American Chemical Society, 2016-11, Vol.138 (44), p.14546-14549 資源來源： American Chemical Society Journals (NTUSG) 版權： Copyright © 2016 American Chemical Society 識別號： ISSN: 0002-7863 識別號： ISSN: 1520-5126 識別號： EISSN: 1520-5126 識別號： DOI: 10.1021/jacs.6b09351 識別號： PMID: 27775881 <br> Tue, 21 Apr 2026 06:20:20 GMT