Journal
CARBON
Volume 153, Issue -, Pages 6-11Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2019.07.009
Keywords
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Funding
- National Natural Science Foundation of China Program [51602111]
- Fundamental Research Funds for the Central Universities [GK201901002]
- Cultivation project of National Engineering Technology Center [2017B090903008]
- 111 Project [B14041]
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H2O2 is an important chemical widely used in paper, textile, water treatment and other fields, while the current industrial anthraquinone pathway is not sustainable. Herein, a highly efficient electrocatalyst, reduced graphene oxide (rGO(-KOH)), applied for electrochemical H2O2 production was obtained by treating graphene oxide (GO) with KOH aqueous solution. Compared to KBH4-treated reduced graphene oxide (rGO(-KBH4)) made by KBH4 reduction method, rGO(-KOH) has more ether bonds (C-O-C) on the surface and a larger electrochemically active surface area. Benefiting from these advantages, rGO(-KOH) exhibits enhanced selectivity (similar to 100%) and mass activity for the oxygen reduction reaction through a two-electron pathway (ORR-2e) than rGO-KBH4. Meanwhile, rGO(-KOH) also shows the excellent durablity for (ORR-2e) in alkaline media. Thus, rGO(-KOH) may be an ideal electrocatalyst for H2O2 electroproduction. (C) 2019 Elsevier Ltd. All rights reserved.
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