TY - JOUR
T1 - Orientation-Adjustable Metal-Organic Framework Nanorods for Efficient Oxygen Evolution Reaction
AU - Xu, Zichen
AU - Yeh, Chia Lin
AU - Jiang, Yuanjuan
AU - Yun, Xinru
AU - Li, Chun Ting
AU - Ho, Kuo Chuan
AU - Lin, Jiann T.
AU - Lin, Ryan Yeh Yung
N1 - Funding Information:
We acknowledge the support of the National Natural Science Foundation of China (No. 21808029), the Fundamental Research Funds for Central Universities (No. DUT19LK22), the State Key Laboratory of Fine Chemicals (KF1818), and the Liaoning Revitalization Talents Program (XLYC1907036).
Publisher Copyright:
© 2021 American Chemical Society.
PY - 2021/6/23
Y1 - 2021/6/23
N2 - A series of orientation-adjustable metal-organic framework (MOF) nanorods, CoFe(dobpdc)-I to CoFe(dobpdc)-III (dobpdc = 4,4′-dihydroxybiphenyl-3,3′-dicarboxylate), is developed on a 3D nickel foam (NF) template. By modulating the solvent composition for synthesis, the feature of MOF nanorods on the template can be varied from disorganized to a unidirectional orientation perpendicular to the NF. Well-aligned, vertically oriented CoFe(dobpdc)-III nanorods are hydrophilic and have more exposed active sites and interfacial charge transfer ability. Consequently, they exhibit a superior activity for oxygen evolution reaction (OER) with ultralow overpotentials of 176 and 240 mV at 10 and 300 mA cm-2 in 1.0 M KOH (aq), respectively. CoFe(dobpdc)-III also shows a record low overpotential of 204 mV at J10 mA cm-2 among the electrocatalysts based on CoFe MOF and an excellent overpotential at a high current density (100 mA cm-2) of 312 mV in 0.1 M KOH (aq). This is the first report of a convenient method to straighten up MOF nanorods on a template for highly efficient OER.
AB - A series of orientation-adjustable metal-organic framework (MOF) nanorods, CoFe(dobpdc)-I to CoFe(dobpdc)-III (dobpdc = 4,4′-dihydroxybiphenyl-3,3′-dicarboxylate), is developed on a 3D nickel foam (NF) template. By modulating the solvent composition for synthesis, the feature of MOF nanorods on the template can be varied from disorganized to a unidirectional orientation perpendicular to the NF. Well-aligned, vertically oriented CoFe(dobpdc)-III nanorods are hydrophilic and have more exposed active sites and interfacial charge transfer ability. Consequently, they exhibit a superior activity for oxygen evolution reaction (OER) with ultralow overpotentials of 176 and 240 mV at 10 and 300 mA cm-2 in 1.0 M KOH (aq), respectively. CoFe(dobpdc)-III also shows a record low overpotential of 204 mV at J10 mA cm-2 among the electrocatalysts based on CoFe MOF and an excellent overpotential at a high current density (100 mA cm-2) of 312 mV in 0.1 M KOH (aq). This is the first report of a convenient method to straighten up MOF nanorods on a template for highly efficient OER.
KW - 1D nanorods
KW - metal-organic framework
KW - orientation
KW - oxygen evolution reaction
KW - solvent compositions
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U2 - 10.1021/acsami.1c05944
DO - 10.1021/acsami.1c05944
M3 - Article
C2 - 34110779
AN - SCOPUS:85108634259
VL - 13
SP - 28242
EP - 28251
JO - ACS applied materials & interfaces
JF - ACS applied materials & interfaces
SN - 1944-8244
IS - 24
ER -