期刊論文
| 學年 | 102 |
|---|---|
| 學期 | 1 |
| 出版（發表）日期 | 2013-08-09 |
| 作品名稱 | Nitrogen-doped Carbon Spheres: An X-ray Absorption Near-edge Structure Spectroscopy Study |
| 作品名稱（其他語言） | |
| 著者 | Sekhar C. Ray; Zikhona N. Tetana; Rudolph Erasmus; Pong, Way-Faung; Neil J. Coville |
| 單位 | 淡江大學物理學系 |
| 出版者 | Heidelberg: Springer |
| 著錄名稱、卷期、頁數 | Applied Physics A 115(1), pp.153-157 |
| 摘要 | Carbon 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 the electronic and structural properties of the NCSs. VBPES also showed that both π and σ bands shift towards higher binding energies after N-doping which is consistent with the XANES data. The consistency of the spherical geometry, chemical purity, suitable electronic/bonding structure and the availability of macroscopic quantities of the N–CSs makes these spheres promising new materials for different applications. |
| 關鍵字 | |
| 語言 | en |
| ISSN | 1432-0630 |
| 期刊性質 | 國外 |
| 收錄於 | SCI |
| 產學合作 | |
| 通訊作者 | Sekhar C. Ray |
| 審稿制度 | 是 |
| 國別 | DEU |
| 公開徵稿 | |
| 出版型式 | ,電子版,紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/97406 ) |