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Dual heteroatoms doped nanocarbons: electrocatalysts for hydrogen peroxide synthesis

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2024, 34(4), pp.1165-1171
  • DOI : 10.1007/s42823-023-00679-w
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General
  • Received : September 16, 2023
  • Accepted : December 20, 2023
  • Published : June 14, 2024

Prasad K. Sudhakara 1 Naveen M. H. 2 Manisha H. 3 Suriani A. B. 4 Babu T. G. Satheesh 5 Shim Yoon-Bo 6

1Nanomaterial Research Laboratory (NMRL), Nano Division, Yenepoya Research Centre, Yenepoya (Deemed to Be University)
2Department of Chemistry, Pusan National University
3Pusan National University
4Universiti Pendidikan Sultan Idris
5Department of Sciences, Amrita Vishwa Vidyapeetham, Amrita School of Engineering, Amritanagar
6부산대힉교

Accredited

ABSTRACT

Metal-free N–S- and N–P-doped nanocarbon (SCNP and PCNP) electrocatalysts prepared through sustainable microwave-assisted synthesis using hemigraphis alternata plant leaves. The prepared heteroatom-doped nanocarbon materials are active catalysts for the two-electron oxygen reduction reaction (ORR) to produce 65–70% of hydrogen peroxide. As evidenced from the XPS, most proportion of the doped heteroatoms contain the oxygen functional groups in the nanocarbons. These attributes are the critical factors to see the selective two-electron transfer ORR for the PCNP and SCNP. This approach shed light on the critical role of dual heteroatoms doping and the oxygen functionalities in nanocarbon towards the selectivity of ORR. We believe that this method would allow the preparation of heteroatom that contains oxygen functionalities. Our work paves a sustainable way of preparation of nanocarbon based ORR catalysts that are only selective for two-electron transfer process.

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