Edge-selectively Sulfurized Graphene Nanoplatelets As Efficient Metal-free Electrocatalysts for Oxygen Reduction Reaction: the Electron Spin Effect

Overview

Journal Adv Mater

Date 2013 Sep 17

PMID 24038522

Citations 26

Authors

In-Yup Jeon

Sheng Zhang

Lipeng Zhang

Hyun-Jung Choi

Jeong-Min Seo

Zhenhai Xia

Liming Dai

Jong-Beom Baek

Affiliations

Soon will be listed here.

Abstract

To replace precious platinum (Pt)-based electrocatalysts for cathodic oxygen reduction reaction (ORR), edge-selectively sulfurized graphene nanoplatelets (SGnP) are synthesized as efficient metal-free electrocatalysts simply by ball-milling pristine graphite in the presence of sulfur (S8 ). The resultant SGnPs exhibit remarkable electrocatalytic activity toward ORR with better tolerance to methanol crossover/CO poisoning effects and longer-term stability than those of pristine graphite and commercial Pt/C electrocatalysts. Edge-Selectively Sulfurized Graphene Nanoplatelets as Efficient Metal-Free Electrocatalysts for Oxygen Reduction Reaction: The Electron Spin Effect.

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