1. Trang chủ
  2. Sản phẩm khoa học
  3. Bài báo
  4. Improvement of structure and electrical conductivity of activated carbon by catalytic graphitization using N 2 plasma pretreatment and iron( iii ) loading

Improvement of structure and electrical conductivity of activated carbon by catalytic graphitization using N 2 plasma pretreatment and iron( iii ) loading

Improvement of structure and electrical conductivity of activated carbon by catalytic graphitization using N 2 plasma pretreatment and iron( iii ) loading

Improvement of structure and electrical conductivity of activated carbon by catalytic graphitization using N 2 plasma pretreatment and iron( iii ) loading

11:10 - 25/03/2019

Evaluation of chemical treatments on dimensional stabilization of archeological waterlogged hardwoods obtained from the Thang Long Imperial Citadel site, Vietnam
Natural durability of the culturally and historically important timber: Erythrophleum fordii wood against white-rot fungi
Shrinkage and swelling behavior of archaeological waterlogged wood preserved with slightly crosslinked sodium polyacrylate
Natural durability of Erythrophleum fordii Oliver against white rot fungi
Shrinkage and swelling behavior of archaeological waterlogged wood treated with polyacrylic acid resin
RSC Advances, 7(71), 44632-44638, 2017
https://doi.org/10.1039/c7ra07328c

Authors

  1. Shukai Shi - College of Materials Science and Engineering; Nanjing Forestry University; Nanjing 210037; China
  2. Xiaoyan Zhou - College of Materials Science and Engineering; Nanjing Forestry University; Nanjing 210037; China
  3. Weimin Chen - College of Materials Science and Engineering; Nanjing Forestry University; Nanjing 210037; China
  4. Minzhi Chen - College of Materials Science and Engineering; Nanjing Forestry University; Nanjing 210037; China
  5. Thiphuong Nguyen - College of Materials Science and Engineering; Nanjing Forestry University; Nanjing 210037; China
  6. Xin Wang - College of Materials Science and Engineering; Nanjing Forestry University; Nanjing 210037; China
  7. Wei Zhang - College of Materials Science and Engineering; Nanjing Forestry University; Nanjing 210037; China
     
    Abstract
     In order to improve the amorphous structure of commercially activated carbon (AC) for enhancing its electron transport, nitrogen radio-frequency plasma was firstly used to pretreat AC, followed by impregnation with FeCl 3 ·6H 2 O solutions to prepare graphitic carbon under the pyrolysis temperature of 1000 °C. Emphasis was put on investigating the structure and electrical conductivity of post-calcination samples by X-ray diffraction (XRD), Raman spectroscopy, and transmission electron microscopy (TEM) characterization, as well as measuring its powder resistivity. The results show that the structure of annealed composite samples is more ordered as the pretreatment time increased, and the maximum value of electrical conductivity is higher than that of the un-pretreated AC by 20%. Furthermore, by exploring the effect on the reaction of plasma treatment on iron loading by means of X-ray photoelectron spectroscopy (XPS) and energy-dispersive X-ray spectroscopy (EDX), a plausible explanation can be proposed that the content and distribution of iron loaded on the raw AC play a decisive role in the later iron-catalyzed graphitization.