Chem. J. Chinese Universities ›› 2016, Vol. 37 ›› Issue (5): 801.doi: 10.7503/cjcu20160076

• Articles: Inorganic Chemistry • Previous Articles     Next Articles

Performance of Gas Storage in Carex meyeriana Kunth-based Carbon

WANG Yun, BEN Teng*(), QIU Shilun   

  1. College of Chemistry, Jilin University, Changchun 130012, China
  • Received:2016-01-28 Online:2016-05-10 Published:2016-04-22
  • Contact: BEN Teng E-mail:tben@jlu.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(Nos.21390394, 21471065, 21261130584), the Major State Basic Research Development Program of China(No.2012CB821700) and the Programme of Introducing Talents of Discipline to Universities, China(No.B07016)

Abstract:

Carex meyeriana Kunth was chosen as raw material to prepare porous carbon material(UlaC-950-HF) by the direct carbonization method without adding exogenous chemical activator. The result of analysis showed that the percentage of carbon in the sample was up to 93% and the product had a trend of part graphitizing. TGA result showed that the sample had high thermal stability(only 3% mass loss from 0 to 400 ℃). N2 sorption isotherm results showed that the pore structure of porous carbon was mainly microporosity(maximal pore size distribution was 1.1 nm) with a small amount of mesoporous pore. The distribution of pore diameter was narrow. There were slit-like structures in the sample which were beneficial for storaging high-pressure methane. The capacity of methane storage of UlaC-950-HF was up to 208 mg/g(mass fraction, 17%) or volumetric capacity of 232 at 298 K and 3.5 MPa. This paper also explained the reason for the outstanding capacity of storaging high-pressure methane by drawing a theoretical model.

Key words: Carbonized biomass, Carex meyeriana Kunth, Self-activation, Methane storage

CLC Number: 

TrendMD: