Issue 104, 2016, Issue in Progress

Hierarchical porous activated carbon in OER with high efficiency

Abstract

The oxygen evolution reaction (OER) has attracted much attention as it can be used to produce clean energy. Hierarchical porous activated carbon (HPAC) shows potential applications for the OER. HPAC derived from fallen leaves (Fraxinus chinensis) is prepared using a facile method, in which KOH and/or K2CO3 are used as activators. Characterization reveals that HPAC in the system of KOH/K2CO3 has a high surface area and possesses abundant hierarchical pores, which are favorable for mass transfer and charge transfer in the oxygen evolution reaction (OER). Acid washed HPAC displays relatively low activity and electrochemical tests demonstrate that ash composition may contribute to the OER. HPAC is a potential carbon-based catalyst that has prominent OER activity and durability.

Graphical abstract: Hierarchical porous activated carbon in OER with high efficiency

Supplementary files

Article information

Article type
Paper
Submitted
30 Jul 2016
Accepted
16 Oct 2016
First published
17 Oct 2016

RSC Adv., 2016,6, 102422-102427

Hierarchical porous activated carbon in OER with high efficiency

Y. Pi, X. Xing, L. Lu, Z. He and T. Ren, RSC Adv., 2016, 6, 102422 DOI: 10.1039/C6RA19333A

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