Facile in Situ Transformation of NiOOH into MOF-74(Ni)/NiO OH Heterogeneous Composite for Enchancing Electrocatalytic Methanol Oxidation

A new MOF-74(Ni)/NiOOH heterogeneous composite was synthesized via NiOOH microsphere precursor. The electrocatalytic methanol oxidation reactions' (MOR) performance was assessed. The as-prepared MOF-74(Ni)/NiOOH exhibited excellent activity with high peak current density (27.62 mA·cm ) and high...

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Published inMolecules (Basel, Switzerland) Vol. 27; no. 7; p. 2113
Main Authors Zhou, Wei-Qun, Xi, Ben-Jun, Chang, Xi-Wen, Wang, Bin, Wu, Xue-Qian, Li, Shuang, Wu, Ya-Pan, Li, Dong-Sheng
Format Journal Article
LanguageEnglish
Published Switzerland MDPI AG 25.03.2022
MDPI
Subjects
Catalysts
Efficiency
electrocatalysis
Electrodes
Electrolytes
Energy
in situ
Ligands
methanol oxidation reaction
Microscopy
MOF-74(Ni)/NiOOH composite
nickel oxide hydroxide
Oxidation
Spectrum analysis
Synergistic effect
nickel oxide hydroxide
MOF-74(Ni)/NiOOH composite
electrocatalysis
in situ
methanol oxidation reaction
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Summary:A new MOF-74(Ni)/NiOOH heterogeneous composite was synthesized via NiOOH microsphere precursor. The electrocatalytic methanol oxidation reactions' (MOR) performance was assessed. The as-prepared MOF-74(Ni)/NiOOH exhibited excellent activity with high peak current density (27.62 mA·cm ) and high mass activity (243.8 mA·mg ). The enhanced activity could be a result of the synergistic effect of the MOF-74(Ni)/NiOOH heterocomposite providing more exposed active sites, a beneficial diffusion path between the catalyst surface and electrolyte, and improved conductivity, favorable for improving MOR performance.
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ISSN:1420-3049
1420-3049
DOI:10.3390/molecules27072113