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Self-nitrogen-doped carbon materials derived from the petioles and blades of apricot leaves as metal-free catalysts for selective oxidation of aromatic alkanes

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2020, 30(2), pp.133-141
  • DOI : 10.1007/s42823-019-00078-0
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General
  • Received : June 7, 2019
  • Accepted : September 9, 2019
  • Published : April 1, 2020

Sun Yongbin 1 Hao Junlei 1 Zhu Xuesai 1 Zhang Baobin 1 Yin Hao 1 Xu Shanguang 1 Hou Chao 1 Liu Kun 1

1Shandong First Medical University

Accredited

ABSTRACT

Carbon materials with tailorable structures and superior properties have great potential applications in environmental protec�tion, energy conversion, and catalysis. Plant biomass as abundant and green non-toxic raw materials has been considered as good precursors for synthesizing heteroatom-doped carbon materials. However, few studies have been reported on the dif�ferent natures of carbon materials derived from diferent parts of the same plant biomass. In this study, we prepared carbon materials from the petioles and blades of apricot leaves by direct pyrolysis without additives. Detailed characterizations indicate that these two carbon materials are similar in element composition and graphitization degree, but difer greatly in surface area and pore volume. These diferences can be attributed to the diferent contents of inorganic salts, vascular bundles, and proteins in petioles and blades. When used as catalysts for the oxidation of ethylbenzene, the petiole-derived carbon shows better catalytic performance than the blades derived carbon due to its high surface area, large average pore size, and doped nitrogen atoms. Furthermore, the carbon catalysts derived from the petioles and blades of poplar leaves and parasol tree leaves show the same diference in catalytic reaction, implying that the above-mentioned conclusion is rather universal, which can provide reference for the synthesis of carbon materials from leaves.

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