Green synthesis of nitrogen-doped multiporous carbons for oxygen reduction reaction using water-caltrop shells and eggshell waste

Chun Han Hsu, Zheng Bang Pan, Hau Ting Qu, Chuan Ren Chen, Hong Ping Lin, I. Wen Sun, Ching Ying Huang, Chun Han Li

研究成果: Article同行評審

1 引文 斯高帕斯(Scopus)

摘要

A green synthesis method is proposed for the preparation of nitrogen-doped multiporous carbons (denoted as N-MPCs) from water-caltrop shell (WCS) using eggshell waste as both a nitrogen-dopant and an activating agent. It is shown that the surface area, porosity, yield and nitrogen content of the as-prepared N-MPCs can be easily controlled by adjusting the activation temperature. Moreover, in oxygen reduction reaction (ORR) tests performed in O2-saturated 0.1 M KOH(aq) electrolyte containing 1.0 M methanol, the N-MPC catalysts show a high ORR stability and good resistance to methanol corrosion. In addition, as a cathode material in Al-air battery tests, the N-MPCs achieve a power density of 16 mW g-1 in a saturated NaCl(aq) electrolyte. Overall, the results show that the N-MPCs have a promising potential as a green and sustainable material for ORR catalysis applications.

原文English
頁(從 - 到)15738-15747
頁數10
期刊RSC Advances
11
發行號26
DOIs
出版狀態Published - 2021 4月 22

All Science Journal Classification (ASJC) codes

  • 一般化學
  • 一般化學工程

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