關鍵字查詢 | 類別:期刊論文 | | 關鍵字:Nitrogen-doped Carbon Spheres

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序號 學年期 教師動態
1 102/1 物理系 彭維鋒 教授 期刊論文 發佈 Nitrogen-doped Carbon Spheres: An X-ray Absorption Near-edge Structure Spectroscopy Study , [102-1] :Nitrogen-doped Carbon Spheres: An X-ray Absorption Near-edge Structure Spectroscopy Study期刊論文Nitrogen-doped Carbon Spheres: An X-ray Absorption Near-edge Structure Spectroscopy StudySekhar C. Ray; Zikhona N. Tetana; Rudolph Erasmus; Pong, Way-Faung; Neil J. Coville淡江大學物理學系Heidelberg: SpringerApplied Physics A 115(1), pp.153-157Carbon spheres (CSs) and low content nitrogen (2.5 and 3.5 at%) doped carbon spheres (NCSs) were synthesized by a pyrolysis process at 900 °C using C2H2 and CH3CN. The electronic structure and chemical bonding of CSs and NCSs were studied using Raman spectroscopy, valence-band photoemission spectroscopy (VBPES) and X-ray absorption near-edge structure spectroscopy (XANES). XANES spectroscopy showed the effect of carbon and nitrogen bonds and graphitic as well as pyridinic structures on the NCS structure. For the spheres VBPES showed the effect of nitrogen on the spectral shape of the density of states and confirmed the role played by the π bonds in controlling th
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