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Open Access Pyrolysis of Chlorella vulgaris as a green chemistry method for manufacturing of nitrogen doped porous carbon materials of high application potential

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In this paper we present results on the synthesis of N-rich porous carbon matrixes from an inexpensive, and renewal raw materials i.e., Chlorella vulgaris being an undesired component of aquatic ecosystems. Moreover, manufacturing procedure involves a nontoxic reagent of CaCO3. The method includes carbonization of mixtures of chitosan or Chlorella vulgaris with CaCO3 at temperature in the range of 600–900 °C. The resulting carbon matrixes are nanostructured and poses high surface area up to 754 m2/g and high nitrogen content up to 9.83 wt.%. The created micro-, mesoporous structure is required by several emerging electrochemical applications. XPS studies revealed the formation of pyridinic and pyrrolic N-based surface species. The presence of such N-based surface functionalities is background for further investigation if the synthetized materials as non-platinum electrode material in some electrochemical power devices. Comparative studies were performed by pyrolysis of a well-known alternative biomaterial i.e., chitosan.
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Document Type: Research Article

Publication date: February 1, 2017

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