Promotion of crystal growth on biomass-based carbon using phosphoric acid treatments

Liwei Yu, Daisuke Tatsumi, Songlin Zuo, Mitsuhiro Morita

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


The effect of phosphoric acid treatments on graphitic microcrystal growth of biomass-based carbons was investigated using X-ray diffraction, infrared spectroscopy, and Raman spectroscopy. Although biomass-based carbons are believed to be hard to graphitize even after heat treatments well beyond 2000 °C, we found that graphitic microcrystals of biomass-based carbons were significantly promoted by phosphoric acid treatments above 800 °C. Moreover, twisted spindle-like whiskers were formed on the surface of the carbons. This suggests that phosphorus-containing groups turn graphitic microcrystalline domains into graphite during phosphoric acid treatments. In addition, the porous texture of the phosphoric acid-treated carbon has the advantage of micropore development.

Original languageEnglish
Pages (from-to)2406-2417
Number of pages12
Issue number2
Publication statusPublished - 2015

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Bioengineering
  • Waste Management and Disposal


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