Biomass-derived nitrogen self-doped porous activation carbon as an effective bifunctional electrocatalysts

Yuanqing Sun, Yiming Ouyang, Jiaqing Luo, Huihui Cao, Xiang Li, Jingwen Ma, Jian Liu, Yuanhao Wang, Lin Lu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

4 Citations (Scopus)

Abstract

The strategy of adopting cheap precursors or abundant resources, which can be obtained directly from nature, is a simple and excellent method of introducing accessible research into environmentally friendly development. Moreover, this is also an urgent requirement for the sustainable development of green technology. Herein, we introduce a simplistic and expandable method to prepare metal-free biomass-derived nitrogen self-doped porous activation carbon (N-PAC) with large specific surface area (SBET = 1300.58 m2/g). Moreover, the manufactural electrocatalysts exhibit prominent oxygen reduction reaction (ORR) performance in all PH values. As compared with the commercial Pt/C catalyst, the N-PAC/800 with a positive onset potential at 10 mA/cm2 (0.93 V), half-wave potential (0.87 V), and limiting current (6.34 mA/cm2) bring to light excellent catalytic stability, selectivity, and much-enhanced methanol tolerance. Furthermore, the prepared electrocatalysts possess considerable hydrogen evolution reaction (HER) performance with a less onset potential of 0.218 V (acidic medium) and 0.271 V (alkaline medium) respectively, which can show similar catalytic activity across the whole pH range. Such bifunctional electrocatalyst, with excellent electrocatalytic properties, resource-rich, low cost, and environmental-friendly, hold a promising application in energy conversion and reserve.

Original languageEnglish
Pages (from-to)92-98
Number of pages7
JournalChinese Chemical Letters
Volume32
Issue number1
DOIs
Publication statusPublished - Jan 2021

Keywords

  • Bifunctional electrocatalysts
  • Biomass-derived
  • High specific surface area
  • Metal-free
  • Nitrogen-doped carbon

ASJC Scopus subject areas

  • Chemistry(all)

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