TY - JOUR
T1 - Ba0.95La0.05FeO3-δ-multi-layer graphene as a low-cost and synergistic catalyst for oxygen evolution reaction
AU - Zhao, Hong
AU - Chen, Chi
AU - Chen, Dengjie
AU - Saccoccio, Mattia
AU - Wang, Jian
AU - Gao, Yang
AU - Wan, Ting Hei
AU - Ciucci, Francesco
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 2015/5/16
Y1 - 2015/5/16
N2 - Oxygen evolution reaction (OER) is critical to many important energy conversion and storage processes. However, the kinetics of OER is typically sluggish, and conventional OER catalysts are scarce and expensive. Hence, inexpensive and effective catalysts that accelerate the OER kinetics and reduce the overpotential are urgently needed. In this paper, we reported multi-layer graphene-supported perovskite Ba0.95La0.05FeO3-δ (BLF-MLG) as a highly active OER catalyst. Electrochemical results showed that the BLF-MLG hybrid exhibited a high current density (∼23 mA/cm2 at 0.60 V vs. mercury/mercury oxide electrode (MMO)) and a more negative onset potential (∼0.43 V vs. MMO). Furthermore, the hybrid showed a smaller Tafel slope (77 mV/decade) and improved long-term stability. The remarkable OER performance is mainly attributed to the synergistic effect between BLF and graphene.
AB - Oxygen evolution reaction (OER) is critical to many important energy conversion and storage processes. However, the kinetics of OER is typically sluggish, and conventional OER catalysts are scarce and expensive. Hence, inexpensive and effective catalysts that accelerate the OER kinetics and reduce the overpotential are urgently needed. In this paper, we reported multi-layer graphene-supported perovskite Ba0.95La0.05FeO3-δ (BLF-MLG) as a highly active OER catalyst. Electrochemical results showed that the BLF-MLG hybrid exhibited a high current density (∼23 mA/cm2 at 0.60 V vs. mercury/mercury oxide electrode (MMO)) and a more negative onset potential (∼0.43 V vs. MMO). Furthermore, the hybrid showed a smaller Tafel slope (77 mV/decade) and improved long-term stability. The remarkable OER performance is mainly attributed to the synergistic effect between BLF and graphene.
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U2 - 10.1016/j.carbon.2015.04.013
DO - 10.1016/j.carbon.2015.04.013
M3 - RGC 21 - Publication in refereed journal
SN - 0008-6223
VL - 90
SP - 122
EP - 129
JO - Carbon
JF - Carbon
ER -
