1. The high performance NiFe layered double hydroxides@ Ti3C2Tx/reduced graphene oxide hybrid catalyst for oxygen evolution reaction.
- Author
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Zhu, Zuolei, Xu, Chenxi, Wang, Yucheng, Wang, Ling, Chang, Zhou, Fang, Zhongwei, Liu, Xiaoteng, and Cheng, Jigui
- Subjects
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OXYGEN evolution reactions , *GRAPHENE oxide , *HYDROGEN evolution reactions , *LAYERED double hydroxides , *CATALYST supports , *CATALYSTS - Abstract
• The NiFe LDH/Ti3C2Tx-rGO catalyst exhibits 235mV overpotential at 10 mA cm-2, and its Tafel slope is only 40 mV dec-1. • The non-precious hybrid support catalysts exhibit high specific surface area that benefit to the electrochemical activity. • NiFe LDH/Ti3C2Tx-rGO exhibits an extremely stable with only a 6mV potential decreasing after 30000s test. A non-precious metal electrocatalyst for oxygen evolution reaction (OER)is achieved by synergistically coupling layered double hydroxides (LDH) and hybrid supports(reduced graphene oxide (rGO) and Ti 3 C 2 T x -MXene). The NiFe LDH/Ti 3 C 2 T x -rGO catalyst exhibits superior activity with a promising low overpotential of 235 mV at a current density of 10 mA cm−2 in alkaline medium. The strong interfacial interaction and electronic coupling with prominent charge-transfer between the NiFe LDH and Ti 3 C 2 T x is identified, which not only improves the conductivity and stability and of the hybrids, but also greatly accelerates the redox process of NiFe LDH for OER. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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